WO2021149143A1 - Reflector antenna device and communication device - Google Patents

Reflector antenna device and communication device Download PDF

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Publication number
WO2021149143A1
WO2021149143A1 PCT/JP2020/001905 JP2020001905W WO2021149143A1 WO 2021149143 A1 WO2021149143 A1 WO 2021149143A1 JP 2020001905 W JP2020001905 W JP 2020001905W WO 2021149143 A1 WO2021149143 A1 WO 2021149143A1
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WO
WIPO (PCT)
Prior art keywords
substrate
antenna device
reflecting surface
reflector antenna
reflector
Prior art date
Application number
PCT/JP2020/001905
Other languages
French (fr)
Japanese (ja)
Inventor
宏昌 中嶋
山本　伸一
道生 瀧川
修次 縫村
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2021560841A priority Critical patent/JP6995260B2/en
Priority to PCT/JP2020/001905 priority patent/WO2021149143A1/en
Publication of WO2021149143A1 publication Critical patent/WO2021149143A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures
    • H01Q15/18—Reflecting surfaces; Equivalent structures comprising plurality of mutually inclined plane surfaces, e.g. corner reflector
    • H01Q15/20—Collapsible reflectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
    • H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/01—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the shape of the antenna or antenna system

Definitions

  • the present disclosure relates to a reflector antenna device including a primary radiator and a communication device including a reflector antenna device.
  • the following Patent Document 1 discloses a reflect array antenna.
  • the reflect array antenna includes a dielectric substrate, a plurality of conductor patches formed on the dielectric substrate, and a primary radiation antenna.
  • the dielectric substrate on which a plurality of conductor patches are formed is a flat plate-shaped substrate. Therefore, the path length of the radio wave when the radio wave radiated from the primary radiation antenna is reflected near the center of the dielectric substrate (hereinafter referred to as the first path length) and the vicinity of the end portion of the dielectric substrate The path length of the radio wave when it is reflected (hereinafter referred to as the second path length) is different.
  • the phase of the radio wave reflected near the center of the dielectric substrate and the phase of the radio wave reflected near the edge of the dielectric substrate are different. Therefore, if the conductor is simply uniformly applied to the radio wave reflecting surface of the dielectric substrate, the radiation direction of the radio wave reflected near the center of the dielectric substrate and the edge of the dielectric substrate The radiation direction of the radio waves reflected in the vicinity is different.
  • a plurality of conductor patches are formed instead of uniformly applying conductors to the reflecting surface of radio waves on the dielectric substrate.
  • each conductor patch is used in order to align the radiation direction of the radio wave reflected near the center of the dielectric substrate and the radiation direction of the radio wave reflected near the edge of the dielectric substrate. The size etc. have been adjusted.
  • the first path length and the second path length are different. Therefore, when the frequency of the radio wave radiated from the primary radiation antenna is switched after the size of the conductor patch is adjusted, the radiation direction of the radio wave reflected near the center of the dielectric substrate and the radiation direction of the dielectric substrate The radiation direction of the radio waves reflected near the end will not be aligned. That is, in the reflect array antenna, if the frequency of the radio wave radiated from the primary radiation antenna is switched after the size of the conductor patch is adjusted, there is a problem that the radiation direction of the radio wave varies. ..
  • the present disclosure has been made in order to solve the above-mentioned problems, and it is possible to suppress variations in the radiation direction of radio waves as compared with a reflect array antenna having only one flat plate-shaped dielectric substrate as a reflector.
  • the purpose is to obtain a capable reflector antenna device.
  • the reflector antenna device includes a primary radiator that emits radio waves, a first substrate on which a plurality of conductor patches are arranged on a reflecting surface that reflects radio waves emitted from the primary radiator, and a first substrate.
  • a second substrate on which a plurality of conductor patches are arranged is provided on a reflecting surface which is arranged around the first substrate and reflects radio waves radiated from a primary radiator, and a reflecting surface in the first substrate.
  • the angle formed by the normal vector of the above and the normal vector of the reflecting surface on the second substrate is larger than 0 degrees and smaller than 90 degrees.
  • the angle between the normal vector of the reflective surface on the first substrate and the normal vector of the reflective surface on the second substrate is larger than 0 degrees and smaller than 90 degrees.
  • a reflector antenna device was constructed. Therefore, the reflector antenna device according to the present disclosure can suppress variations in the radiation direction of radio waves as compared with a reflect array antenna having only one flat plate-shaped dielectric substrate as a reflector.
  • FIG. It is a perspective view which shows the reflector antenna device 3 which concerns on Embodiment 1.
  • FIG. It is a top view which shows the reflection surface 12a of the 1st substrate 12 in the reflector antenna device 3 which concerns on Embodiment 1.
  • FIG. It is a side view which shows the 1st substrate 12 in the reflector antenna device 3 which concerns on Embodiment 1.
  • FIG. It is a side view which shows the 2nd substrate 13 in the reflector antenna device 3 which concerns on Embodiment 1.
  • FIG. It is a side view which shows the 2nd substrate 13 in the reflector antenna device 3 which concerns on Embodiment 1.
  • FIG. It is a side view which shows the 2nd substrate 13 in the reflector antenna device 3 which concerns on
  • FIG. 7A is an explanatory diagram showing a state in which the second substrate 13 is superposed on the first substrate 12
  • FIG. 7B is an explanatory diagram showing a state in which the second substrate 13 is in the process of being opened
  • FIG. 7C is an explanatory diagram.
  • FIG. 10A is an explanatory view showing circular conductor patches 21 and 23
  • FIG. 10B is an explanatory view showing rectangular frame-shaped conductor patches 21 and 23
  • FIG. 10C is an explanatory view showing ring-shaped conductor patches 21 and 23
  • FIG. 10D is an explanatory view showing conductor patches 21 and 23 having a + shape. It is a perspective view which shows the reflector antenna device 3 which concerns on Embodiment 2.
  • FIG. 12A, 12B, and 12C are explanatory views showing a state in which the angle ⁇ between the reflecting surface 12a and the reflecting surface 13a is switched by the movable mechanism 30. It is explanatory drawing which shows the simulation result of the radiation characteristic of the reflector antenna device 3. It is a side view which shows the reflector antenna device 3 which concerns on Embodiment 3. FIG. It is explanatory drawing which shows the normal vector v 12 of the reflection surface 12a, the normal vector v 13 of the reflection surface 13a, the reflection direction of the radio wave by the reflection surface 12a, and the reflection direction of the radio wave by the reflection surface 13a. It is a side view which shows the reflector antenna device 3 which concerns on Embodiment 4. FIG.
  • FIG. 1 is a configuration diagram showing a communication device including the reflector antenna device 3 according to the first embodiment.
  • the signal transmission unit 1 outputs a transmission signal to the reflector antenna device 3.
  • the signal receiving unit 2 receives the received signal output from the reflector antenna device 3.
  • the reflector antenna device 3 radiates radio waves related to the transmission signal output from the signal transmission unit 1 into the air. Further, the reflector antenna device 3 receives a radio wave and outputs a received signal related to the received radio wave to the signal receiving unit 2.
  • FIG. 2 is a perspective view showing the reflector antenna device 3 according to the first embodiment.
  • FIG. 3 is a plan view showing a reflecting surface 12a of the first substrate 12 in the reflecting mirror antenna device 3 according to the first embodiment.
  • FIG. 4 is a side view showing the first substrate 12 in the reflector antenna device 3 according to the first embodiment.
  • FIG. 5 is a plan view showing a reflecting surface 13a of the second substrate 13 in the reflecting mirror antenna device 3 according to the first embodiment.
  • FIG. 6 is a side view showing the second substrate 13 in the reflector antenna device 3 according to the first embodiment.
  • FIG. 7 is an explanatory view showing a development example of the first substrate 12 and the second substrate 13 in the reflector antenna device 3 according to the first embodiment.
  • FIG. 7A shows a state in which the second substrate 13 is superposed on the first substrate 12, and
  • FIG. 7B shows a state in which the second substrate 13 is in the process of being opened.
  • FIG. 7C shows a state in which the second substrate 13 has been completely
  • the primary radiator 11 is realized by a backfire antenna.
  • the primary radiator 11 radiates radio waves related to the transmission signal output from the signal transmission unit 1 toward the reflection surface 12a of the first substrate 12 and the reflection surface 13a of the second substrate 13, respectively.
  • the first substrate 12 is realized by, for example, a dielectric substrate or a foam plate.
  • the reflecting surface 12a of the first substrate 12 is a surface that reflects radio waves radiated from the primary radiator 11, and a plurality of conductor patches 21 are arranged on the reflecting surface 12a.
  • the back surface 12b of the first substrate 12 is a surface opposite to the reflection surface 12a, and the conductor 22 is arranged on the entire back surface 12b.
  • the second substrate 13 is realized by, for example, a dielectric substrate or a foam plate.
  • the second substrate 13 is arranged around the first substrate 12.
  • the reflecting surface 13a of the second substrate 13 is a surface that reflects radio waves radiated from the primary radiator 11, and a plurality of conductor patches 23 are arranged on the reflecting surface 13a.
  • the back surface 13b of the second substrate 13 is a surface opposite to the reflecting surface 13a, and the conductor 24 is arranged on the entire back surface 13b.
  • the hinge 14 is a connecting member that connects the first substrate 12 and the second substrate 13.
  • the normal vector v 13 of the reflecting surface 13a of the second substrate 13 are inclined with respect to the normal vector v 12 of the reflective surface 12a of the first substrate 12 .
  • FIG. 8 is an explanatory diagram showing the normal vector v 12 of the reflecting surface 12a, the normal vector v 13 of the reflecting surface 13a, the reflection direction of the radio wave by the reflecting surface 12a, and the reflecting direction of the radio wave by the reflecting surface 13a.
  • the normal vector v 12 of the reflective surface 12a of the first substrate 12 the angle ⁇ between normal vector v 13 of the reflecting surface 13a of the second substrate 13, Greater than 0 degrees and less than 90 degrees.
  • the reflector antenna device 3 shown in FIG. 2 four second substrates 13 are arranged around the first substrate 12. However, it is sufficient that one or more second substrates 13 are arranged around the first substrate 12, and the second substrate 13 arranged around the first substrate 12, for example, is 1. It may be one or three. In the reflector antenna device 3 shown in FIG. 2, the first substrate 12 and the second substrate 13 are connected by a hinge 14. However, this is only an example, the first substrate 12 and the second substrate 13 are not connected, and there may be a gap between the first substrate 12 and the second substrate 13. ..
  • the conductor patch 21 is a conductor applied to the reflecting surface 12a of the first substrate 12.
  • the phase of the radio wave reflected by the reflecting surface 12a can be changed by adjusting the size of each of the plurality of conductor patches 21 applied to the reflecting surface 12a or the arrangement of each of the plurality of conductor patches 21. Is possible.
  • the conductor 22 is a conductor provided on the entire back surface 12b of the first substrate 12.
  • the conductor patch 23 is a conductor applied to the reflecting surface 13a of the second substrate 13.
  • the phase of the radio wave reflected by the reflecting surface 13a can be changed by adjusting the size of each of the plurality of conductor patches 23 applied to the reflecting surface 13a or the arrangement of each of the plurality of conductor patches 23. Is possible.
  • the conductor 24 is a conductor provided on the entire back surface 13b of the second substrate 13.
  • a plurality of conductors are aligned so that the direction of reflection of radio waves by the reflection surface 12a of the first substrate 12 and the direction of reflection of radio waves by the reflection surface 13a of the second substrate 13 are aligned.
  • the size of each of the patches 21 and 23, or the arrangement of each of the plurality of conductor patches 21 and 23 is adjusted.
  • the arrows indicate the direction of reflection of radio waves.
  • the fact that the direction of reflection of radio waves by the reflecting surface 12a and the direction of reflection of radio waves by the reflecting surface 13a are not limited to those in which both reflection directions are exactly aligned, and both are within a range where there is no practical problem. The ones with different reflection directions are also included.
  • the reflector antenna device 3 When the reflector antenna device 3 is not in use, as shown in FIG. 7A, the second substrate 13 is superposed on the first substrate 12 to reduce the size of the reflector antenna device 3 and to reduce the size of the reflector antenna device 3. It is possible to improve the storability.
  • the reflector antenna device 3 As shown in FIG. 7C, the reflector antenna device 3 is used in a state where the second substrate 13 is open. When the second substrate 13 is open, the shape of the reflector antenna device 3 is a three-dimensional shape, and the shape of the reflector antenna device 3 is similar to the shape of a known parabolic antenna. Since the shape of the parabolic antenna remains a three-dimensional shape even when not in use, the parabolic antenna has poor storability.
  • the reflector antenna device 3 is more storable than the parabolic antenna because the second substrate 13 can be superposed on the first substrate 12 when not in use.
  • the signal transmission unit 1 outputs the transmission signal to the reflector antenna device 3.
  • the primary radiator 11 of the reflector antenna device 3 receives the transmission signal from the signal transmission unit 1, as shown in FIGS. 2 and 8, the radio wave related to the transmission signal is transmitted to the reflection surface 12a and the second substrate 12 of the first substrate 12. It radiates toward each of the reflecting surfaces 13a of the substrate 13 of 2.
  • the reflecting surface 12a of the first substrate 12 When the reflecting surface 12a of the first substrate 12 receives the radio wave radiated from the primary radiator 11, the reflecting surface 12a reflects the radio wave as shown in FIGS. 2 and 8.
  • the first substrate 12 is arranged parallel to the xy plane in the xyz coordinate axes.
  • the direction of reflection of radio waves by the reflecting surface 12a is a direction parallel to the z-axis.
  • 11a is a radio wave emission port in the primary radiator 11, and the radiation port 11a corresponds to a radio wave source.
  • the reflecting surface 13a of the second substrate 13 receives the radio wave radiated from the primary radiator 11, the reflecting surface 13a reflects the radio wave as shown in FIGS. 2 and 8.
  • the direction of reflection of radio waves by the reflection surface 13a is a direction parallel to the z-axis.
  • FIG. 9 shows the direction of reflection of radio waves by the dielectric substrate when the reflection surface of the radio waves is only the reflection surface of the flat plate-shaped dielectric substrate, similar to the reflect array antenna disclosed in Patent Document 1. It is explanatory drawing. As shown in FIG. 9, the flat plate-shaped dielectric substrate is arranged parallel to the xy plane in the xyz coordinate axes. When the reflecting surface of the radio wave is only the reflecting surface of the flat plate-shaped dielectric substrate, as shown in FIG. 9, the path length of the radio wave reflected near the center of the dielectric substrate (hereinafter, "first path length"). ”) And the path length of the radio wave reflected near the end of the dielectric substrate (hereinafter referred to as the“ second path length ”).
  • the difference between the first path length and the second path length is large, if a conductor is simply provided on the entire reflective surface of the dielectric substrate, the radio wave reflected near the center of the electric body substrate.
  • the phase of the radio wave reflected near the edge of the dielectric substrate is different. Therefore, the reflection direction of the radio wave reflected near the center of the electric body substrate and the reflection direction of the radio wave reflected near the edge of the dielectric substrate are different.
  • the radio wave reflected near the center of the electric body substrate can be obtained by adjusting the size of each of the plurality of conductor patches. It is possible to compensate for the difference between the phase of the radio wave and the phase of the radio wave reflected near the edge of the dielectric substrate. Therefore, even if the difference between the first path length and the second path length is large, by compensating for the phase difference, the reflection direction of the radio wave reflected near the center of the electric body substrate and the reflection direction of the dielectric substrate It is possible to align the reflection direction of the radio wave reflected near the end in substantially the same direction.
  • the frequency of the radio wave radiated from the primary radiator 11 may be switched. Since the first path length and the second path length are different, when the frequency of the radio wave radiated from the primary radiator 11 is switched, the radiation direction of the radio wave reflected near the center of the dielectric substrate and the radiation direction of the radio wave are determined. The radiation direction of the radio waves reflected near the edge of the dielectric substrate will not be aligned. That is, in the reflector antenna device shown in FIG. 9, if the frequency of the radio wave radiated from the primary radiator 11 is switched after the size of the conductor patch or the like is adjusted, the radiation direction of the radio wave will vary. .. Further, in the reflector antenna device shown in FIG. 9, among the radio waves radiated from the primary radiator 11, radio waves that are not reflected by the reflecting surface of the dielectric substrate and are unnecessarily radiated into the space are generated. The gain of the antenna may decrease.
  • the normal vector v 13 of the reflection surface 13a on the second substrate 13 is tilted with respect to the normal vector v 12 of the reflection surface 12a on the first substrate 12. .. That is, the normal vector v 12 of the reflecting surface 12a is in a direction parallel to the z-axis, whereas the normal vector v 13 of the reflecting surface 13a is in a direction different from the direction parallel to the z-axis, and the reflecting surface 13a
  • the normal vector v 13 of the above is tilted with respect to the normal vector v 12 of the reflecting surface 12a.
  • the reflector antenna device 3 shown in FIG. 8 Since the angle ⁇ formed by the normal vector v 12 of the reflecting surface 12a and the normal vector v 13 of the reflecting surface 13a is larger than 0 degrees and smaller than 90 degrees, the reflector antenna device 3 shown in FIG. 8 is , The difference between the first path length and the second path length is smaller than that of the reflector antenna device shown in FIG.
  • the reflector antenna device 3 since the difference between the first path length and the second path length is small, the radio waves radiated from the primary radiator 11 after the size of the conductor patches 21 and 23 are adjusted. Even if the frequency is switched, the variation in the radiation direction of the radio wave can be suppressed as compared with the reflector antenna device shown in FIG. In the reflector antenna device 3, since the normal vector v 13 of the reflection surface 13a is tilted with respect to the normal vector v 12 of the reflection surface 12a, the reflector antenna device 3 is the reflector antenna shown in FIG. Compared to the device, the proportion of radio waves that are unnecessarily radiated into the space is reduced, and the gain of the antenna is improved.
  • the conductor patches 21 and 23 have a rectangular shape.
  • the shape of the conductor patches 21 and 23 may be circular as shown in FIG. 10A, or may be a rectangular frame shape as shown in FIG. 10B.
  • the shape of the conductor patches 21 and 23 may be a ring shape as shown in FIG. 10C or a + shape as shown in FIG. 10D.
  • 10A shows circular conductor patches 21 and 23, and
  • FIG. 10B shows rectangular frame-shaped conductor patches 21 and 23.
  • FIG. 10C shows ring-shaped conductor patches 21 and 23, and FIG. 10D shows + -shaped conductor patches 21 and 23.
  • the shapes of the plurality of conductor patches 21 may be the same or different from each other.
  • the shapes of the plurality of conductor patches 23 may be the same or different from each other.
  • Each arrangement in the plurality of conductor patches 21 may be periodic or aperiodic. Further, each arrangement in the plurality of conductor patches 23 may be periodic or aperiodic.
  • the operation when the reflector antenna device 3 is used as a transmitting antenna is described.
  • the operation when the reflector antenna device 3 is used as a receiving antenna is reversible to the operation when it is used as a transmitting antenna.
  • the first substrate 12 in which a plurality of conductor patches 21 are arranged on the primary radiator 11 that emits radio waves and the reflecting surface 12a that reflects the radio waves emitted from the primary radiator 11.
  • the angle formed by the normal vector of the reflecting surface 12a on the first substrate 12 and the normal vector of the reflecting surface 13a on the second substrate 13 is larger than 0 degrees and smaller than 90 degrees.
  • the mirror antenna device 3 was configured. Therefore, the reflector antenna device 3 can suppress variations in the radiation direction of radio waves as compared with a reflect array antenna having only one flat plate-shaped dielectric substrate as a reflector.
  • Embodiment 2 In the reflector antenna device 3 shown in FIG. 2, the angle ⁇ formed by the normal vector v 12 of the reflecting surface 12a and the normal vector v 13 of the reflecting surface 13a in the state where the second substrate 13 is completely opened is , The hinge 14 keeps it constant. In the second embodiment, it is possible to switch the angle ⁇ formed by the normal vector v 12 of the reflecting surface 12a and the normal vector v 13 of the reflecting surface 13a in the state where the second substrate 13 is completely opened. The reflector antenna device 3 will be described.
  • FIG. 11 is a perspective view showing the reflector antenna device 3 according to the second embodiment.
  • the movable mechanism 30 is realized by a hinge or the like capable of switching the angle ⁇ formed by the normal vector v 12 of the reflecting surface 12a and the normal vector v 13 of the reflecting surface 13a. That is, as shown in FIG. 12, the movable mechanism 30 is realized by a hinge or the like capable of switching the angle ⁇ between the reflecting surface 12a and the reflecting surface 13a.
  • ⁇ ⁇ .
  • the movable mechanism 30 moves the second substrate 13 in order to switch the angle ⁇ formed by the normal vector v 12 of the reflecting surface 12a and the normal vector v 13 of the reflecting surface 13a.
  • 12A, 12B, and 12C are explanatory views showing a state in which the angle ⁇ between the reflecting surface 12a and the reflecting surface 13a is switched by the movable mechanism 30.
  • the angle ⁇ in FIG. 12A is about 10 degrees
  • the angle ⁇ in FIG. 12B is about 25 degrees
  • the angle ⁇ in FIG. 12B is about 35 degrees.
  • the movable mechanism 30 switches the angle ⁇ between the reflecting surface 12a and the reflecting surface 13a, the phase of the radio wave by the reflecting surface 13a changes, and the reflecting direction of the radio wave changes. Therefore, after the size of the conductor patches 21 and 23 is adjusted, the frequency of the radio wave radiated from the primary radiator 11 is switched, so that even if the radiation direction of the radio wave varies, the reflection surface 12a and the reflection surface 12a are reflected. By switching the angle ⁇ with the surface 13a, it is possible to suppress variations in the radiation direction of radio waves.
  • FIG. 13 is an explanatory diagram showing a simulation result of the radiation characteristics of the reflector antenna device 3.
  • the horizontal axis of the graph shown in FIG. 13 indicates the radiation direction of the radio wave radiated from the reflector antenna device 3, and the vertical axis of the graph shown in FIG. 13 is the gain of the radio wave radiated from the reflector antenna device 3. Is shown. In the example of FIG.
  • the beam having a gain of 10 [dB] The width has changed from an angle of 4.8 degrees to an angle of 7.6 degrees.
  • the reflector antenna device 3 shown in FIG. 11 in order to switch the normal vector v 12 of the reflective surface 12a of the first substrate 12, the angle ⁇ between normal vector v 13 of the reflecting surface 13a of the second substrate 13,
  • the reflector antenna device 3 shown in FIG. 11 is configured so as to include a movable mechanism 30 that can move the second substrate 13. Therefore, the reflector antenna device 3 shown in FIG. 11 can further suppress variations in the radiation direction of radio waves as compared with the reflector antenna device 3 shown in FIG.
  • Embodiment 3 In the reflector antenna device 3 shown in FIG. 2, a backfire antenna is used as the primary radiator 11. In the third embodiment, as shown in FIG. 14, a reflector antenna device 3 using a horn antenna as the primary radiator 41 will be described.
  • FIG. 14 is a side view showing the reflector antenna device 3 according to the third embodiment.
  • the primary radiator 41 is realized by a horn antenna. Similar to the primary radiator 11 shown in FIG. 2, the primary radiator 41 transmits radio waves related to the transmission signal output from the signal transmission unit 1 to the reflection surface 12a of the first substrate 12 and the reflection surface of the second substrate 13. It radiates toward each of 13a.
  • the primary radiator 41 is applied to the reflector antenna device 3 shown in FIG.
  • FIG. 15 is an explanatory diagram showing the normal vector v 12 of the reflecting surface 12a, the normal vector v 13 of the reflecting surface 13a, the reflection direction of the radio wave by the reflecting surface 12a, and the reflecting direction of the radio wave by the reflecting surface 13a.
  • the reflector antenna device 3 shown in FIG. 14 similarly to the reflector antenna device 3 shown in FIG. 2, the normal vector v 12 of the reflection surface 12a on the first substrate 12 and the reflection surface 13a on the second substrate 13
  • the angle ⁇ formed by the normal vector v 13 of is larger than 0 degrees and smaller than 90 degrees. Therefore, the reflector antenna device 3 shown in FIG. 14 also emits radio waves as a reflector, as compared with the reflect array antenna provided with only one flat plate-shaped dielectric substrate, as in the reflector antenna device 3 shown in FIG. It is possible to suppress the variation in direction.
  • FIG. 16 is a side view showing the reflector antenna device 3 according to the fourth embodiment.
  • the primary radiator 51 is realized by a horn antenna.
  • the primary radiator 51 radiates radio waves related to the transmission signal output from the signal transmission unit 1 toward the secondary reflector 52.
  • the secondary reflector 52 reflects the radio waves radiated from the primary radiator 51 toward the reflecting surface 12a of the first substrate 12 and the reflecting surface 13a of the second substrate 13, respectively.
  • the primary radiator 51 and the secondary reflector 52 are applied to the reflector antenna device 3 shown in FIG.
  • FIG. 17 is an explanatory diagram showing the normal vector v 12 of the reflecting surface 12a, the normal vector v 13 of the reflecting surface 13a, the reflection direction of the radio wave by the reflecting surface 12a, and the reflecting direction of the radio wave by the reflecting surface 13a.
  • the reflector antenna device 3 shown in FIG. 16 similarly to the reflector antenna device 3 shown in FIG. 2, the normal vector v 12 of the reflection surface 12a on the first substrate 12 and the reflection surface 13a on the second substrate 13
  • the angle ⁇ formed by the normal vector v 13 of is larger than 0 degrees and smaller than 90 degrees. Therefore, the reflector antenna device 3 shown in FIG. 16 also emits radio waves more than the reflect array antenna provided with only one flat plate-shaped dielectric substrate as the reflector, as in the reflector antenna device 3 shown in FIG. It is possible to suppress the variation in direction.
  • the reflector antenna device 3 shown in FIG. 16 uses a ring-focused Gregorian secondary reflector as the secondary reflector 52, in which the central portion of the reflecting surface of the radio wave is recessed from the peripheral portion of the reflecting surface.
  • the reflector antenna device 3 has a ring focus Cassegrain in which, for example, as shown in FIG. 18, the central portion of the reflecting surface of radio waves is more convex than the peripheral portion of the reflecting surface.
  • the sub-reflector 53 of the above may be provided.
  • FIG. 18 is a side view showing another reflector antenna device 3 according to the fourth embodiment.
  • the same reference numerals as those in FIGS. 2 and 16 indicate the same or corresponding parts, and thus the description thereof will be omitted.
  • the sub-reflecting mirror 53 transmits the radio waves radiated from the primary radiator 51 to the reflecting surface 12a of the first substrate 12 and the reflecting surface 13a of the second substrate 13, respectively. Reflect toward.
  • the primary radiator 51 and the secondary reflector 53 are applied to the reflector antenna device 3 shown in FIG.
  • the primary radiator 51 and the secondary reflector 53 may be applied to the reflector antenna device 3 shown in FIG.
  • the sub-reflector included in the reflector antenna device 3 is not limited to the ring-focus Gregorian sub-reflector 52 or the ring-focus Cassegrain sub-reflector 53, and any shape of the sub-reflector may be used. Can be done.
  • the reflecting mirror antenna device 3 has a plurality of conductor patches 55 arranged on the reflecting surface 54a of the radio waves as a secondary reflecting mirror that reflects the radio waves radiated from the primary radiator 51, for example.
  • the third substrate 54 may be provided.
  • FIG. 19 is a side view showing another reflector antenna device 3 according to the fourth embodiment.
  • the same reference numerals as those in FIGS. 2 and 16 indicate the same or corresponding parts, and thus the description thereof will be omitted.
  • FIG. 20 is a plan view showing the reflection surface 54a of the third substrate 54 in the other reflector antenna device 3 according to the fourth embodiment.
  • FIG. 21 is a side view showing a third substrate 54 in the other reflector antenna device 3 according to the fourth embodiment.
  • the third substrate 54 is realized, for example, by a dielectric substrate or a foam plate.
  • the reflecting surface 54a of the third substrate 54 is a surface that reflects the radio waves radiated from the primary radiator 11 toward each of the reflecting surface 12a of the first substrate 12 and the reflecting surface 13a of the second substrate 13. Yes, a plurality of conductor patches 55 are arranged on the reflecting surface 54a.
  • the back surface 54b of the third substrate 54 is a surface opposite to the reflecting surface 54a, and the conductor 56 is arranged on the entire back surface 54b.
  • the conductor patch 55 is a conductor applied to the reflecting surface 54a of the third substrate 54.
  • the phase of the radio wave reflected by the reflecting surface 54a can be changed by adjusting the size of each of the plurality of conductor patches 55 applied to the reflecting surface 54a or the arrangement of each of the plurality of conductor patches 55. Is possible.
  • the conductor 56 is a conductor provided on the entire back surface 54b of the third substrate 54.
  • the reflector antenna device 3 shown in FIG. 19 similarly to the reflector antenna device 3 shown in FIG. 2, the normal vector v 12 of the reflection surface 12a on the first substrate 12 and the reflection surface 13a on the second substrate 13
  • the angle ⁇ formed by the normal vector v 13 of is larger than 0 degrees and smaller than 90 degrees. Therefore, the reflector antenna device 3 shown in FIG. 19 also emits radio waves more than the reflect array antenna provided with only one flat plate-shaped dielectric substrate as the reflector, as in the reflector antenna device 3 shown in FIG. It is possible to suppress the variation in direction.
  • the present disclosure is suitable for reflector antenna devices with a primary radiator. Further, the present disclosure is suitable for a communication device including a reflector antenna device.
  • 1 signal transmitter, 2 signal receiver, 3 reflector antenna device 11 primary radiator, 11a emission port, 12 first substrate, 12a reflecting surface, 12b back surface, 13 second substrate, 13a reflecting surface, 13b back surface , 14 hinges, 21 conductor patches, 22 conductors, 23 conductor patches, 24 conductors, 30 movable mechanisms, 41 primary radiators, 51 primary radiators, 52, 53 secondary reflectors, 54 third substrates, 54a reflective surfaces, 54b Back, 55 conductor patch, 56 conductor.

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Abstract

A reflector antenna device (3) is configured to comprise: a primary radiator (11) that radiates radio waves; a first base plate (12) in which a plurality of conductor patches (21) are arranged on a reflective surface (12a) for reflecting the radio waves radiated from the primary radiator (11); and second base plates (13) that are arranged on the periphery of the first base plate (12) and in each of which a plurality of conductor patches (23) are arranged on a reflective surface (13a) for reflecting the radio waves radiated from the primary radiator (11), wherein the angle formed between a normal vector of the reflective surface (12a) in the first base plate (12) and a normal vector of the reflective surface (13a) in each second base plate (13) is greater than zero and less than 90 degrees.

Description

反射鏡アンテナ装置及び通信装置Reflector antenna device and communication device
　本開示は、一次放射器を備える反射鏡アンテナ装置と、反射鏡アンテナ装置を備える通信装置とに関するものである。 The present disclosure relates to a reflector antenna device including a primary radiator and a communication device including a reflector antenna device.
　以下の特許文献１には、リフレクトアレーアンテナが開示されている。当該リフレクトアレーアンテナは、誘電体基板と、誘電体基板に形成された複数の導体パッチと、一次放射アンテナとを備えている。
　当該リフレクトアレーアンテナでは、複数の導体パッチが形成されている誘電体基板が平板状の基板である。このため、一次放射アンテナから放射された電波が、誘電体基板の中央付近で反射されるときの電波の経路長（以下、第１の経路長と称する）と、誘電体基板の端部付近で反射されるときの電波の経路長（以下、第２の経路長と称する）とが異なる。
　第１の経路長と、第２の経路長とが異なるため、誘電体基板の中央付近で反射された電波の位相と、誘電体基板の端部付近で反射された電波の位相とが異なる。したがって、誘電体基板における電波の反射面に、単に、導体が一様に施されているだけであれば、誘電体基板の中央付近で反射された電波の放射方向と、誘電体基板の端部付近で反射された電波の放射方向とが異なる。
　当該リフレクトアレーアンテナでは、誘電体基板における電波の反射面に、導体を一様に施す代わりに、複数の導体パッチが形成されている。そして、当該リフレクトアレーアンテナでは、誘電体基板の中央付近で反射された電波の放射方向と、誘電体基板の端部付近で反射された電波の放射方向とを揃えるために、それぞれの導体パッチの大きさ等が調整されている。 The following Patent Document 1 discloses a reflect array antenna. The reflect array antenna includes a dielectric substrate, a plurality of conductor patches formed on the dielectric substrate, and a primary radiation antenna.
In the reflect array antenna, the dielectric substrate on which a plurality of conductor patches are formed is a flat plate-shaped substrate. Therefore, the path length of the radio wave when the radio wave radiated from the primary radiation antenna is reflected near the center of the dielectric substrate (hereinafter referred to as the first path length) and the vicinity of the end portion of the dielectric substrate The path length of the radio wave when it is reflected (hereinafter referred to as the second path length) is different.
Since the first path length and the second path length are different, the phase of the radio wave reflected near the center of the dielectric substrate and the phase of the radio wave reflected near the edge of the dielectric substrate are different. Therefore, if the conductor is simply uniformly applied to the radio wave reflecting surface of the dielectric substrate, the radiation direction of the radio wave reflected near the center of the dielectric substrate and the edge of the dielectric substrate The radiation direction of the radio waves reflected in the vicinity is different.
In the reflect array antenna, a plurality of conductor patches are formed instead of uniformly applying conductors to the reflecting surface of radio waves on the dielectric substrate. Then, in the reflect array antenna, in order to align the radiation direction of the radio wave reflected near the center of the dielectric substrate and the radiation direction of the radio wave reflected near the edge of the dielectric substrate, each conductor patch is used. The size etc. have been adjusted.
特開平６－７７７２６号公報Japanese Unexamined Patent Publication No. 6-77726
　特許文献１に開示されているリフレクトアレーアンテナでは、第１の経路長と、第２の経路長とが異なっている。このため、導体パッチの大きさ等が調整された後に、一次放射アンテナから放射される電波の周波数が切り替えられると、誘電体基板の中央付近で反射される電波の放射方向と、誘電体基板の端部付近で反射される電波の放射方向とが揃わなくなってしまう。つまり、当該リフレクトアレーアンテナでは、導体パッチの大きさ等が調整された後に、一次放射アンテナから放射される電波の周波数が切り替えられると、電波の放射方向にバラツキが生じてしまうという課題があった。 In the reflect array antenna disclosed in Patent Document 1, the first path length and the second path length are different. Therefore, when the frequency of the radio wave radiated from the primary radiation antenna is switched after the size of the conductor patch is adjusted, the radiation direction of the radio wave reflected near the center of the dielectric substrate and the radiation direction of the dielectric substrate The radiation direction of the radio waves reflected near the end will not be aligned. That is, in the reflect array antenna, if the frequency of the radio wave radiated from the primary radiation antenna is switched after the size of the conductor patch is adjusted, there is a problem that the radiation direction of the radio wave varies. ..
　本開示は、上記のような課題を解決するためになされたもので、反射板として、１つの平板状の誘電体基板のみを備えるリフレクトアレーアンテナよりも、電波の放射方向のバラツキを抑えることができる反射鏡アンテナ装置を得ることを目的とする。 The present disclosure has been made in order to solve the above-mentioned problems, and it is possible to suppress variations in the radiation direction of radio waves as compared with a reflect array antenna having only one flat plate-shaped dielectric substrate as a reflector. The purpose is to obtain a capable reflector antenna device.
　本開示に係る反射鏡アンテナ装置は、電波を放射する一次放射器と、一次放射器から放射された電波を反射する反射面に、複数の導体パッチが配置されている第１の基板と、第１の基板の周囲に配置されており、一次放射器から放射された電波を反射する反射面に、複数の導体パッチが配置されている第２の基板とを備え、第１の基板における反射面の法線ベクトルと、第２の基板における反射面の法線ベクトルとのなす角度が、０度よりも大きく、９０度よりも小さいものである。 The reflector antenna device according to the present disclosure includes a primary radiator that emits radio waves, a first substrate on which a plurality of conductor patches are arranged on a reflecting surface that reflects radio waves emitted from the primary radiator, and a first substrate. A second substrate on which a plurality of conductor patches are arranged is provided on a reflecting surface which is arranged around the first substrate and reflects radio waves radiated from a primary radiator, and a reflecting surface in the first substrate. The angle formed by the normal vector of the above and the normal vector of the reflecting surface on the second substrate is larger than 0 degrees and smaller than 90 degrees.
　本開示によれば、第１の基板における反射面の法線ベクトルと、第２の基板における反射面の法線ベクトルとのなす角度が、０度よりも大きく、９０度よりも小さいように、反射鏡アンテナ装置を構成した。したがって、本開示に係る反射鏡アンテナ装置は、反射板として、１つの平板状の誘電体基板のみを備えるリフレクトアレーアンテナよりも、電波の放射方向のバラツキを抑えることができる。 According to the present disclosure, the angle between the normal vector of the reflective surface on the first substrate and the normal vector of the reflective surface on the second substrate is larger than 0 degrees and smaller than 90 degrees. A reflector antenna device was constructed. Therefore, the reflector antenna device according to the present disclosure can suppress variations in the radiation direction of radio waves as compared with a reflect array antenna having only one flat plate-shaped dielectric substrate as a reflector.
実施の形態１に係る反射鏡アンテナ装置３を含む通信装置を示す構成図である。It is a block diagram which shows the communication device which includes the reflector antenna device 3 which concerns on Embodiment 1. FIG. 実施の形態１に係る反射鏡アンテナ装置３を示す斜視図である。It is a perspective view which shows the reflector antenna device 3 which concerns on Embodiment 1. FIG. 実施の形態１に係る反射鏡アンテナ装置３における第１の基板１２の反射面１２ａを示す平面図である。It is a top view which shows the reflection surface 12a of the 1st substrate 12 in the reflector antenna device 3 which concerns on Embodiment 1. FIG. 実施の形態１に係る反射鏡アンテナ装置３における第１の基板１２を示す側面図である。It is a side view which shows the 1st substrate 12 in the reflector antenna device 3 which concerns on Embodiment 1. FIG. 実施の形態１に係る反射鏡アンテナ装置３における第２の基板１３の反射面１３ａを示す平面図である。It is a top view which shows the reflection surface 13a of the 2nd substrate 13 in the reflector antenna device 3 which concerns on Embodiment 1. FIG. 実施の形態１に係る反射鏡アンテナ装置３における第２の基板１３を示す側面図である。It is a side view which shows the 2nd substrate 13 in the reflector antenna device 3 which concerns on Embodiment 1. FIG. 図７Ａは、第２の基板１３が第１の基板１２に重ね合わされている状態を示す説明図、図７Ｂは、第２の基板１３が開いている途中の状態を示す説明図、図７Ｃは、第２の基板１３が開き終わった状態を示す説明図である。7A is an explanatory diagram showing a state in which the second substrate 13 is superposed on the first substrate 12, FIG. 7B is an explanatory diagram showing a state in which the second substrate 13 is in the process of being opened, and FIG. 7C is an explanatory diagram. , It is explanatory drawing which shows the state which the 2nd substrate 13 has finished opening. 反射面１２ａの法線ベクトルｖ１２及び反射面１３ａの法線ベクトルｖ１３と、反射面１２ａによる電波の反射方向及び反射面１３ａによる電波の反射方向とを示す説明図である。It is explanatory drawing which shows the normal vector v 12 of the reflection surface 12a, the normal vector v 13 of the reflection surface 13a, the reflection direction of the radio wave by the reflection surface 12a, and the reflection direction of the radio wave by the reflection surface 13a. 特許文献１に開示されているリフレクトアレーアンテナと同様に、電波の反射面が、平板状の誘電体基板の反射面のみである場合の、誘電体基板による電波の反射方向を示す説明図である。Similar to the reflect array antenna disclosed in Patent Document 1, it is explanatory drawing which shows the reflection direction of the radio wave by the dielectric substrate in the case where the reflection surface of a radio wave is only the reflection surface of a flat plate-shaped dielectric substrate. .. 図１０Ａは、円形の導体パッチ２１，２３を示す説明図、図１０Ｂは、矩形の枠形状の導体パッチ２１，２３を示す説明図、図１０Ｃは、リング形の導体パッチ２１，２３を示す説明図、図１０Ｄは、＋形の形状の導体パッチ２１，２３を示す説明図である。10A is an explanatory view showing circular conductor patches 21 and 23, FIG. 10B is an explanatory view showing rectangular frame- shaped conductor patches 21 and 23, and FIG. 10C is an explanatory view showing ring- shaped conductor patches 21 and 23. FIG. 10D is an explanatory view showing conductor patches 21 and 23 having a + shape. 実施の形態２に係る反射鏡アンテナ装置３を示す斜視図である。It is a perspective view which shows the reflector antenna device 3 which concerns on Embodiment 2. FIG. 図１２Ａ、図１２Ｂ及び図１２Ｃのそれぞれは、可動機構３０によって、反射面１２ａと反射面１３ａとの角度αが切り替えられた状態を示す説明図である。12A, 12B, and 12C are explanatory views showing a state in which the angle α between the reflecting surface 12a and the reflecting surface 13a is switched by the movable mechanism 30. 反射鏡アンテナ装置３の放射特性のシミュレーション結果を示す説明図である。It is explanatory drawing which shows the simulation result of the radiation characteristic of the reflector antenna device 3. 実施の形態３に係る反射鏡アンテナ装置３を示す側面図である。It is a side view which shows the reflector antenna device 3 which concerns on Embodiment 3. FIG. 反射面１２ａの法線ベクトルｖ１２及び反射面１３ａの法線ベクトルｖ１３と、反射面１２ａによる電波の反射方向及び反射面１３ａによる電波の反射方向とを示す説明図である。It is explanatory drawing which shows the normal vector v 12 of the reflection surface 12a, the normal vector v 13 of the reflection surface 13a, the reflection direction of the radio wave by the reflection surface 12a, and the reflection direction of the radio wave by the reflection surface 13a. 実施の形態４に係る反射鏡アンテナ装置３を示す側面図である。It is a side view which shows the reflector antenna device 3 which concerns on Embodiment 4. FIG. 反射面１２ａの法線ベクトルｖ１２及び反射面１３ａの法線ベクトルｖ１３と、反射面１２ａによる電波の反射方向及び反射面１３ａによる電波の反射方向とを示す説明図である。It is explanatory drawing which shows the normal vector v 12 of the reflection surface 12a, the normal vector v 13 of the reflection surface 13a, the reflection direction of the radio wave by the reflection surface 12a, and the reflection direction of the radio wave by the reflection surface 13a. 実施の形態４に係る他の反射鏡アンテナ装置３を示す側面図である。It is a side view which shows the other reflector antenna device 3 which concerns on Embodiment 4. FIG. 実施の形態４に係る他の反射鏡アンテナ装置３を示す側面図である。It is a side view which shows the other reflector antenna device 3 which concerns on Embodiment 4. FIG. 実施の形態４に係る他の反射鏡アンテナ装置３における第３の基板５４の反射面５４ａを示す平面図である。It is a top view which shows the reflection surface 54a of the 3rd substrate 54 in the other reflector antenna device 3 which concerns on Embodiment 4. FIG. 実施の形態４に係る他の反射鏡アンテナ装置３における第３の基板５４を示す側面図である。It is a side view which shows the 3rd substrate 54 in the other reflector antenna device 3 which concerns on Embodiment 4. FIG.
　以下、本開示をより詳細に説明するために、本開示を実施するための形態について、添付の図面に従って説明する。 Hereinafter, in order to explain the present disclosure in more detail, a mode for carrying out the present disclosure will be described with reference to the attached drawings.
実施の形態１．
　図１は、実施の形態１に係る反射鏡アンテナ装置３を含む通信装置を示す構成図である。
　図１において、信号送信部１は、送信信号を反射鏡アンテナ装置３に出力する。
　信号受信部２は、反射鏡アンテナ装置３から出力された受信信号を受信する。
　反射鏡アンテナ装置３は、信号送信部１から出力された送信信号に係る電波を空中に放射する。
　また、反射鏡アンテナ装置３は、電波を受信して、受信した電波に係る受信信号を信号受信部２に出力する。 Embodiment 1.
FIG. 1 is a configuration diagram showing a communication device including the reflector antenna device 3 according to the first embodiment.
In FIG. 1, the signal transmission unit 1 outputs a transmission signal to the reflector antenna device 3.
The signal receiving unit 2 receives the received signal output from the reflector antenna device 3.
The reflector antenna device 3 radiates radio waves related to the transmission signal output from the signal transmission unit 1 into the air.
Further, the reflector antenna device 3 receives a radio wave and outputs a received signal related to the received radio wave to the signal receiving unit 2.
　図２は、実施の形態１に係る反射鏡アンテナ装置３を示す斜視図である。
　図３は、実施の形態１に係る反射鏡アンテナ装置３における第１の基板１２の反射面１２ａを示す平面図である。
　図４は、実施の形態１に係る反射鏡アンテナ装置３における第１の基板１２を示す側面図である。
　図５は、実施の形態１に係る反射鏡アンテナ装置３における第２の基板１３の反射面１３ａを示す平面図である。
　図６は、実施の形態１に係る反射鏡アンテナ装置３における第２の基板１３を示す側面図である。
　図７は、実施の形態１に係る反射鏡アンテナ装置３における第１の基板１２と第２の基板１３との展開例を示す説明図である。
　図７Ａは、第２の基板１３が第１の基板１２に重ね合わされている状態を示しており、図７Ｂは、第２の基板１３が開いている途中の状態を示している。図７Ｃは、第２の基板１３が開き終わった状態を示している。 FIG. 2 is a perspective view showing the reflector antenna device 3 according to the first embodiment.
FIG. 3 is a plan view showing a reflecting surface 12a of the first substrate 12 in the reflecting mirror antenna device 3 according to the first embodiment.
FIG. 4 is a side view showing the first substrate 12 in the reflector antenna device 3 according to the first embodiment.
FIG. 5 is a plan view showing a reflecting surface 13a of the second substrate 13 in the reflecting mirror antenna device 3 according to the first embodiment.
FIG. 6 is a side view showing the second substrate 13 in the reflector antenna device 3 according to the first embodiment.
FIG. 7 is an explanatory view showing a development example of the first substrate 12 and the second substrate 13 in the reflector antenna device 3 according to the first embodiment.
FIG. 7A shows a state in which the second substrate 13 is superposed on the first substrate 12, and FIG. 7B shows a state in which the second substrate 13 is in the process of being opened. FIG. 7C shows a state in which the second substrate 13 has been completely opened.
　一次放射器１１は、バックファイアアンテナによって実現されている。
　一次放射器１１は、信号送信部１から出力された送信信号に係る電波を第１の基板１２の反射面１２ａ及び第２の基板１３の反射面１３ａのそれぞれに向けて放射する。
　第１の基板１２は、例えば、誘電体基板又は発泡板によって実現される。
　第１の基板１２の反射面１２ａは、一次放射器１１から放射された電波を反射する面であり、反射面１２ａには、複数の導体パッチ２１が配置されている。
　第１の基板１２の背面１２ｂは、反射面１２ａと反対側の面であり、背面１２ｂの全体に導体２２が配置されている。 The primary radiator 11 is realized by a backfire antenna.
The primary radiator 11 radiates radio waves related to the transmission signal output from the signal transmission unit 1 toward the reflection surface 12a of the first substrate 12 and the reflection surface 13a of the second substrate 13, respectively.
The first substrate 12 is realized by, for example, a dielectric substrate or a foam plate.
The reflecting surface 12a of the first substrate 12 is a surface that reflects radio waves radiated from the primary radiator 11, and a plurality of conductor patches 21 are arranged on the reflecting surface 12a.
The back surface 12b of the first substrate 12 is a surface opposite to the reflection surface 12a, and the conductor 22 is arranged on the entire back surface 12b.
　第２の基板１３は、例えば、誘電体基板又は発泡板によって実現される。
　第２の基板１３は、第１の基板１２の周囲に配置されている。
　第２の基板１３の反射面１３ａは、一次放射器１１から放射された電波を反射する面であり、反射面１３ａには、複数の導体パッチ２３が配置されている。
　第２の基板１３の背面１３ｂは、反射面１３ａと反対側の面であり、背面１３ｂの全体に導体２４が配置されている。 The second substrate 13 is realized by, for example, a dielectric substrate or a foam plate.
The second substrate 13 is arranged around the first substrate 12.
The reflecting surface 13a of the second substrate 13 is a surface that reflects radio waves radiated from the primary radiator 11, and a plurality of conductor patches 23 are arranged on the reflecting surface 13a.
The back surface 13b of the second substrate 13 is a surface opposite to the reflecting surface 13a, and the conductor 24 is arranged on the entire back surface 13b.
　ヒンジ１４は、第１の基板１２と第２の基板１３とを接続する接続部材である。
　ヒンジ１４によって、第２の基板１３における反射面１３ａの法線ベクトルｖ１３が、図８に示すように、第１の基板１２における反射面１２ａの法線ベクトルｖ１２に対して傾けられている。
　図８は、反射面１２ａの法線ベクトルｖ１２及び反射面１３ａの法線ベクトルｖ１３と、反射面１２ａによる電波の反射方向及び反射面１３ａによる電波の反射方向とを示す説明図である。
　図２に示す反射鏡アンテナ装置３では、第１の基板１２における反射面１２ａの法線ベクトルｖ１２と、第２の基板１３における反射面１３ａの法線ベクトルｖ１３とのなす角度θが、０度よりも大きく、９０度よりも小さい。 The hinge 14 is a connecting member that connects the first substrate 12 and the second substrate 13.
By a hinge 14, the normal vector v 13 of the reflecting surface 13a of the second substrate 13, as shown in FIG. 8, are inclined with respect to the normal vector v 12 of the reflective surface 12a of the first substrate 12 ..
FIG. 8 is an explanatory diagram showing the normal vector v 12 of the reflecting surface 12a, the normal vector v 13 of the reflecting surface 13a, the reflection direction of the radio wave by the reflecting surface 12a, and the reflecting direction of the radio wave by the reflecting surface 13a.
In reflector antenna apparatus 3 shown in FIG. 2, the normal vector v 12 of the reflective surface 12a of the first substrate 12, the angle θ between normal vector v 13 of the reflecting surface 13a of the second substrate 13, Greater than 0 degrees and less than 90 degrees.
　図２に示す反射鏡アンテナ装置３では、第１の基板１２の周囲に、４つの第２の基板１３が配置されている。しかし、１つ以上の第２の基板１３が、第１の基板１２の周囲に配置されていればよく、第１の基板１２の周囲に配置されている第２の基板１３が、例えば、１つであってもよいし、３つであってもよい。
　図２に示す反射鏡アンテナ装置３では、第１の基板１２と第２の基板１３とがヒンジ１４によって接続されている。しかし、これは一例に過ぎず、第１の基板１２と第２の基板１３とが接続されておらず、第１の基板１２と第２の基板１３との間に、隙間があってもよい。 In the reflector antenna device 3 shown in FIG. 2, four second substrates 13 are arranged around the first substrate 12. However, it is sufficient that one or more second substrates 13 are arranged around the first substrate 12, and the second substrate 13 arranged around the first substrate 12, for example, is 1. It may be one or three.
In the reflector antenna device 3 shown in FIG. 2, the first substrate 12 and the second substrate 13 are connected by a hinge 14. However, this is only an example, the first substrate 12 and the second substrate 13 are not connected, and there may be a gap between the first substrate 12 and the second substrate 13. ..
　導体パッチ２１は、第１の基板１２における反射面１２ａに施されている導体である。
　反射面１２ａに施されている複数の導体パッチ２１におけるそれぞれの大きさ、又は、複数の導体パッチ２１におけるそれぞれの配置等を調整することによって、反射面１２ａによって反射される電波の位相を変えることが可能である。
　導体２２は、第１の基板１２における背面１２ｂの全体に施されている導体である。 The conductor patch 21 is a conductor applied to the reflecting surface 12a of the first substrate 12.
The phase of the radio wave reflected by the reflecting surface 12a can be changed by adjusting the size of each of the plurality of conductor patches 21 applied to the reflecting surface 12a or the arrangement of each of the plurality of conductor patches 21. Is possible.
The conductor 22 is a conductor provided on the entire back surface 12b of the first substrate 12.
　導体パッチ２３は、第２の基板１３における反射面１３ａに施されている導体である。
　反射面１３ａに施されている複数の導体パッチ２３におけるそれぞれの大きさ、又は、複数の導体パッチ２３におけるそれぞれの配置等を調整することによって、反射面１３ａによって反射される電波の位相を変えることが可能である。
　導体２４は、第２の基板１３における背面１３ｂの全体に施されている導体である。 The conductor patch 23 is a conductor applied to the reflecting surface 13a of the second substrate 13.
The phase of the radio wave reflected by the reflecting surface 13a can be changed by adjusting the size of each of the plurality of conductor patches 23 applied to the reflecting surface 13a or the arrangement of each of the plurality of conductor patches 23. Is possible.
The conductor 24 is a conductor provided on the entire back surface 13b of the second substrate 13.
　図２に示す反射鏡アンテナ装置３では、第１の基板１２の反射面１２ａによる電波の反射方向と、第２の基板１３の反射面１３ａによる電波の反射方向とが揃うように、複数の導体パッチ２１，２３におけるそれぞれの大きさ、又は、複数の導体パッチ２１，２３におけるそれぞれの配置等が調整される。図２中、矢印は、電波の反射方向を示している。
　反射面１２ａによる電波の反射方向と、反射面１３ａによる電波の反射方向とが揃うとは、双方の反射方向が厳密に揃っているものに限るものではなく、実用上問題のない範囲で、双方の反射方向が異なっているものも含まれる。 In the reflector antenna device 3 shown in FIG. 2, a plurality of conductors are aligned so that the direction of reflection of radio waves by the reflection surface 12a of the first substrate 12 and the direction of reflection of radio waves by the reflection surface 13a of the second substrate 13 are aligned. The size of each of the patches 21 and 23, or the arrangement of each of the plurality of conductor patches 21 and 23 is adjusted. In FIG. 2, the arrows indicate the direction of reflection of radio waves.
The fact that the direction of reflection of radio waves by the reflecting surface 12a and the direction of reflection of radio waves by the reflecting surface 13a are not limited to those in which both reflection directions are exactly aligned, and both are within a range where there is no practical problem. The ones with different reflection directions are also included.
　次に、図１に示す通信装置の動作について説明する。
　反射鏡アンテナ装置３の未使用時には、図７Ａに示すように、第２の基板１３を第１の基板１２に重ね合わせることで、反射鏡アンテナ装置３を小型にして、反射鏡アンテナ装置３の収納性を高めることが可能である。
　反射鏡アンテナ装置３は、図７Ｃに示すように、第２の基板１３が開いている状態で使用される。
　第２の基板１３が開いている状態では、反射鏡アンテナ装置３の形状が立体的な形状であり、反射鏡アンテナ装置３の形状が、公知のパラボラアンテナの形状と類似の形状である。未使用時であっても、パラボラアンテナの形状は、立体的な形状のままであるため、パラボラアンテナは、収納性が悪い。
　反射鏡アンテナ装置３は、未使用時では、第２の基板１３を第１の基板１２に重ね合わせることが可能であるため、パラボラアンテナよりも収納性が高い。 Next, the operation of the communication device shown in FIG. 1 will be described.
When the reflector antenna device 3 is not in use, as shown in FIG. 7A, the second substrate 13 is superposed on the first substrate 12 to reduce the size of the reflector antenna device 3 and to reduce the size of the reflector antenna device 3. It is possible to improve the storability.
As shown in FIG. 7C, the reflector antenna device 3 is used in a state where the second substrate 13 is open.
When the second substrate 13 is open, the shape of the reflector antenna device 3 is a three-dimensional shape, and the shape of the reflector antenna device 3 is similar to the shape of a known parabolic antenna. Since the shape of the parabolic antenna remains a three-dimensional shape even when not in use, the parabolic antenna has poor storability.
The reflector antenna device 3 is more storable than the parabolic antenna because the second substrate 13 can be superposed on the first substrate 12 when not in use.
　信号送信部１は、送信信号を反射鏡アンテナ装置３に出力する。
　反射鏡アンテナ装置３の一次放射器１１は、信号送信部１から送信信号を受けると、図２及び図８に示すように、送信信号に係る電波を第１の基板１２の反射面１２ａ及び第２の基板１３の反射面１３ａのそれぞれに向けて放射する。 The signal transmission unit 1 outputs the transmission signal to the reflector antenna device 3.
When the primary radiator 11 of the reflector antenna device 3 receives the transmission signal from the signal transmission unit 1, as shown in FIGS. 2 and 8, the radio wave related to the transmission signal is transmitted to the reflection surface 12a and the second substrate 12 of the first substrate 12. It radiates toward each of the reflecting surfaces 13a of the substrate 13 of 2.
　第１の基板１２の反射面１２ａは、一次放射器１１から放射された電波を受けると、図２及び図８に示すように、当該電波を反射させる。
　第１の基板１２は、図８に示すように、ｘｙｚ座標軸におけるｘ－ｙ平面と平行に配置されている。図８の例では、反射面１２ａによる電波の反射方向は、ｚ軸と平行な方向である。
　図８において、１１ａは、一次放射器１１における電波の放射口であり、放射口１１ａは、電波の波源に相当する。
　第２の基板１３の反射面１３ａは、一次放射器１１から放射された電波を受けると、図２及び図８に示すように、当該電波を反射させる。図８の例では、反射面１３ａによる電波の反射方向は、ｚ軸と平行な方向である。 When the reflecting surface 12a of the first substrate 12 receives the radio wave radiated from the primary radiator 11, the reflecting surface 12a reflects the radio wave as shown in FIGS. 2 and 8.
As shown in FIG. 8, the first substrate 12 is arranged parallel to the xy plane in the xyz coordinate axes. In the example of FIG. 8, the direction of reflection of radio waves by the reflecting surface 12a is a direction parallel to the z-axis.
In FIG. 8, 11a is a radio wave emission port in the primary radiator 11, and the radiation port 11a corresponds to a radio wave source.
When the reflecting surface 13a of the second substrate 13 receives the radio wave radiated from the primary radiator 11, the reflecting surface 13a reflects the radio wave as shown in FIGS. 2 and 8. In the example of FIG. 8, the direction of reflection of radio waves by the reflection surface 13a is a direction parallel to the z-axis.
　図９は、特許文献１に開示されているリフレクトアレーアンテナと同様に、電波の反射面が、平板状の誘電体基板の反射面のみである場合の、誘電体基板による電波の反射方向を示す説明図である。平板状の誘電体基板は、図９に示すように、ｘｙｚ座標軸におけるｘ－ｙ平面と平行に配置されている。
　電波の反射面が、平板状の誘電体基板の反射面のみである場合、図９に示すように、誘電体基板の中央付近で反射された電波の経路長（以下、「第１の経路長」と称する）と、誘電体基板の端部付近で反射された電波の経路長（以下、「第２の経路長」と称する）との差異が大きい。
　第１の経路長と第２の経路長との差異が大きいため、単に、誘電体基板の反射面の全体に導体が施されているとすれば、電体基板の中央付近で反射された電波の位相と、誘電体基板の端部付近で反射された電波の位相とが異なる。したがって、電体基板の中央付近で反射された電波の反射方向と、誘電体基板の端部付近で反射された電波の反射方向とが異なる。 FIG. 9 shows the direction of reflection of radio waves by the dielectric substrate when the reflection surface of the radio waves is only the reflection surface of the flat plate-shaped dielectric substrate, similar to the reflect array antenna disclosed in Patent Document 1. It is explanatory drawing. As shown in FIG. 9, the flat plate-shaped dielectric substrate is arranged parallel to the xy plane in the xyz coordinate axes.
When the reflecting surface of the radio wave is only the reflecting surface of the flat plate-shaped dielectric substrate, as shown in FIG. 9, the path length of the radio wave reflected near the center of the dielectric substrate (hereinafter, "first path length"). ”) And the path length of the radio wave reflected near the end of the dielectric substrate (hereinafter referred to as the“ second path length ”).
Since the difference between the first path length and the second path length is large, if a conductor is simply provided on the entire reflective surface of the dielectric substrate, the radio wave reflected near the center of the electric body substrate. The phase of the radio wave reflected near the edge of the dielectric substrate is different. Therefore, the reflection direction of the radio wave reflected near the center of the electric body substrate and the reflection direction of the radio wave reflected near the edge of the dielectric substrate are different.
　誘電体基板の反射面に導体が施される導体が、複数の導体パッチであれば、複数の導体パッチにおけるそれぞれの大きさ等を調整することで、電体基板の中央付近で反射された電波の位相と、誘電体基板の端部付近で反射された電波の位相との差異を補償することができる。
　したがって、第１の経路長と第２の経路長との差異が大きくても、位相の差異を補償することによって、電体基板の中央付近で反射された電波の反射方向と、誘電体基板の端部付近で反射された電波の反射方向とを概ね同じ方向に揃えることができる。 If the conductor to which the conductor is applied to the reflective surface of the dielectric substrate is a plurality of conductor patches, the radio wave reflected near the center of the electric body substrate can be obtained by adjusting the size of each of the plurality of conductor patches. It is possible to compensate for the difference between the phase of the radio wave and the phase of the radio wave reflected near the edge of the dielectric substrate.
Therefore, even if the difference between the first path length and the second path length is large, by compensating for the phase difference, the reflection direction of the radio wave reflected near the center of the electric body substrate and the reflection direction of the dielectric substrate It is possible to align the reflection direction of the radio wave reflected near the end in substantially the same direction.
　導体パッチの大きさ等が調整された後に、一次放射器１１から放射される電波の周波数が切り替えられることがある。
　第１の経路長と第２の経路長とが異なっているため、一次放射器１１から放射される電波の周波数が切り替えられると、誘電体基板の中央付近で反射される電波の放射方向と、誘電体基板の端部付近で反射される電波の放射方向とが揃わなくなってしまう。つまり、図９に示す反射鏡アンテナ装置では、導体パッチの大きさ等が調整された後に、一次放射器１１から放射される電波の周波数が切り替えられると、電波の放射方向にバラツキが生じてしまう。
　また、図９に示す反射鏡アンテナ装置では、一次放射器１１から放射される電波のうち、誘電体基板の反射面に反射されずに、不要に空間中に放射されてしまう電波が発生し、アンテナの利得が低下することがある。 After adjusting the size of the conductor patch and the like, the frequency of the radio wave radiated from the primary radiator 11 may be switched.
Since the first path length and the second path length are different, when the frequency of the radio wave radiated from the primary radiator 11 is switched, the radiation direction of the radio wave reflected near the center of the dielectric substrate and the radiation direction of the radio wave are determined. The radiation direction of the radio waves reflected near the edge of the dielectric substrate will not be aligned. That is, in the reflector antenna device shown in FIG. 9, if the frequency of the radio wave radiated from the primary radiator 11 is switched after the size of the conductor patch or the like is adjusted, the radiation direction of the radio wave will vary. ..
Further, in the reflector antenna device shown in FIG. 9, among the radio waves radiated from the primary radiator 11, radio waves that are not reflected by the reflecting surface of the dielectric substrate and are unnecessarily radiated into the space are generated. The gain of the antenna may decrease.
　図８に示す反射鏡アンテナ装置３では、第２の基板１３における反射面１３ａの法線ベクトルｖ１３が、第１の基板１２における反射面１２ａの法線ベクトルｖ１２に対して傾けられている。即ち、反射面１２ａの法線ベクトルｖ１２がｚ軸と平行な方向であるのに対して、反射面１３ａの法線ベクトルｖ１３がｚ軸と平行な方向と異なる方向であり、反射面１３ａの法線ベクトルｖ１３が、反射面１２ａの法線ベクトルｖ１２に対して傾けられている。
　反射面１２ａの法線ベクトルｖ１２と、反射面１３ａの法線ベクトルｖ１３とのなす角度θが、０度よりも大きく、９０度よりも小さいため、図８に示す反射鏡アンテナ装置３は、図９に示す反射鏡アンテナ装置よりも、第１の経路長と第２の経路長との差異が小さい。 In the reflector antenna device 3 shown in FIG. 8, the normal vector v 13 of the reflection surface 13a on the second substrate 13 is tilted with respect to the normal vector v 12 of the reflection surface 12a on the first substrate 12. .. That is, the normal vector v 12 of the reflecting surface 12a is in a direction parallel to the z-axis, whereas the normal vector v 13 of the reflecting surface 13a is in a direction different from the direction parallel to the z-axis, and the reflecting surface 13a The normal vector v 13 of the above is tilted with respect to the normal vector v 12 of the reflecting surface 12a.
Since the angle θ formed by the normal vector v 12 of the reflecting surface 12a and the normal vector v 13 of the reflecting surface 13a is larger than 0 degrees and smaller than 90 degrees, the reflector antenna device 3 shown in FIG. 8 is , The difference between the first path length and the second path length is smaller than that of the reflector antenna device shown in FIG.
　反射鏡アンテナ装置３は、第１の経路長と第２の経路長との差異が小さいため、導体パッチ２１，２３の大きさ等が調整された後に、一次放射器１１から放射される電波の周波数が切り替えられても、図９に示す反射鏡アンテナ装置よりも、電波の放射方向のバラツキを抑えることができる。
　反射鏡アンテナ装置３では、反射面１３ａの法線ベクトルｖ１３が、反射面１２ａの法線ベクトルｖ１２に対して傾けられているため、反射鏡アンテナ装置３は、図９に示す反射鏡アンテナ装置よりも、不要に空間中に放射されてしまう電波の割合が減少し、アンテナの利得が向上する。 In the reflector antenna device 3, since the difference between the first path length and the second path length is small, the radio waves radiated from the primary radiator 11 after the size of the conductor patches 21 and 23 are adjusted. Even if the frequency is switched, the variation in the radiation direction of the radio wave can be suppressed as compared with the reflector antenna device shown in FIG.
In the reflector antenna device 3, since the normal vector v 13 of the reflection surface 13a is tilted with respect to the normal vector v 12 of the reflection surface 12a, the reflector antenna device 3 is the reflector antenna shown in FIG. Compared to the device, the proportion of radio waves that are unnecessarily radiated into the space is reduced, and the gain of the antenna is improved.
　反射鏡アンテナ装置３では、導体パッチ２１，２３の形状が矩形であるものを示している。しかし、これは一例に過ぎず、導体パッチ２１，２３の形状が、図１０Ａに示すように、円形であってもよいし、図１０Ｂに示すように、矩形の枠形状であってもよい。
　また、導体パッチ２１，２３の形状が、図１０Ｃに示すように、リング形であってもよいし、図１０Ｄに示すように、＋形の形状であってもよい。
　図１０Ａは、円形の導体パッチ２１，２３を示し、図１０Ｂは、矩形の枠形状の導体パッチ２１，２３を示している。
　また、図１０Ｃは、リング形の導体パッチ２１，２３を示し、図１０Ｄは、＋形の形状の導体パッチ２１，２３を示している。 In the reflector antenna device 3, the conductor patches 21 and 23 have a rectangular shape. However, this is only an example, and the shape of the conductor patches 21 and 23 may be circular as shown in FIG. 10A, or may be a rectangular frame shape as shown in FIG. 10B.
Further, the shape of the conductor patches 21 and 23 may be a ring shape as shown in FIG. 10C or a + shape as shown in FIG. 10D.
10A shows circular conductor patches 21 and 23, and FIG. 10B shows rectangular frame-shaped conductor patches 21 and 23.
Further, FIG. 10C shows ring-shaped conductor patches 21 and 23, and FIG. 10D shows + -shaped conductor patches 21 and 23.
　複数の導体パッチ２１におけるそれぞれの形状は、同一形状であってもよいし、互いに異なる形状であってもよい。
　複数の導体パッチ２３におけるそれぞれの形状は、同一形状であってもよいし、互いに異なる形状であってもよい。
　複数の導体パッチ２１におけるそれぞれの配置は、周期的であってもよいし、非周期的であってもよい。
　また、複数の導体パッチ２３におけるそれぞれの配置は、周期的であってもよいし、非周期的であってもよい。 The shapes of the plurality of conductor patches 21 may be the same or different from each other.
The shapes of the plurality of conductor patches 23 may be the same or different from each other.
Each arrangement in the plurality of conductor patches 21 may be periodic or aperiodic.
Further, each arrangement in the plurality of conductor patches 23 may be periodic or aperiodic.
　ここでは、反射鏡アンテナ装置３が、送信アンテナとして使用される場合の動作を説明している。反射鏡アンテナ装置３が受信アンテナとして使用される場合の動作は、送信アンテナとして使用される場合の動作と可逆的である。 Here, the operation when the reflector antenna device 3 is used as a transmitting antenna is described. The operation when the reflector antenna device 3 is used as a receiving antenna is reversible to the operation when it is used as a transmitting antenna.
　以上の実施の形態１では、電波を放射する一次放射器１１と、一次放射器１１から放射された電波を反射する反射面１２ａに、複数の導体パッチ２１が配置されている第１の基板１２と、第１の基板１２の周囲に配置されており、一次放射器１１から放射された電波を反射する反射面１３ａに、複数の導体パッチ２３が配置されている第２の基板１３とを備え、第１の基板１２における反射面１２ａの法線ベクトルと、第２の基板１３における反射面１３ａの法線ベクトルとのなす角度が、０度よりも大きく、９０度よりも小さいように、反射鏡アンテナ装置３を構成した。したがって、反射鏡アンテナ装置３は、反射板として、１つの平板状の誘電体基板のみを備えるリフレクトアレーアンテナよりも、電波の放射方向のバラツキを抑えることができる。 In the first embodiment described above, the first substrate 12 in which a plurality of conductor patches 21 are arranged on the primary radiator 11 that emits radio waves and the reflecting surface 12a that reflects the radio waves emitted from the primary radiator 11. And a second substrate 13 on which a plurality of conductor patches 23 are arranged on a reflecting surface 13a which is arranged around the first substrate 12 and reflects radio waves radiated from the primary radiator 11. , The angle formed by the normal vector of the reflecting surface 12a on the first substrate 12 and the normal vector of the reflecting surface 13a on the second substrate 13 is larger than 0 degrees and smaller than 90 degrees. The mirror antenna device 3 was configured. Therefore, the reflector antenna device 3 can suppress variations in the radiation direction of radio waves as compared with a reflect array antenna having only one flat plate-shaped dielectric substrate as a reflector.
実施の形態２．
　図２に示す反射鏡アンテナ装置３では、第２の基板１３が開き終わった状態での、反射面１２ａの法線ベクトルｖ１２と、反射面１３ａの法線ベクトルｖ１３とのなす角度θが、ヒンジ１４によって、一定に保たれる。
　実施の形態２では、第２の基板１３が開き終わった状態での、反射面１２ａの法線ベクトルｖ１２と、反射面１３ａの法線ベクトルｖ１３とのなす角度θを切り替えることが可能な反射鏡アンテナ装置３について説明する。 Embodiment 2.
In the reflector antenna device 3 shown in FIG. 2, the angle θ formed by the normal vector v 12 of the reflecting surface 12a and the normal vector v 13 of the reflecting surface 13a in the state where the second substrate 13 is completely opened is , The hinge 14 keeps it constant.
In the second embodiment, it is possible to switch the angle θ formed by the normal vector v 12 of the reflecting surface 12a and the normal vector v 13 of the reflecting surface 13a in the state where the second substrate 13 is completely opened. The reflector antenna device 3 will be described.
　図１１は、実施の形態２に係る反射鏡アンテナ装置３を示す斜視図である。図１１において、図２と同一符号は同一又は相当部分を示すので説明を省略する。
　可動機構３０は、反射面１２ａの法線ベクトルｖ１２と、反射面１３ａの法線ベクトルｖ１３とのなす角度θを切り替えることが可能なヒンジ等によって実現される。即ち、可動機構３０は、図１２に示すように、反射面１２ａと反射面１３ａとの角度αを切り替えることが可能なヒンジ等によって実現される。α＝θである。
　可動機構３０は、反射面１２ａの法線ベクトルｖ１２と、反射面１３ａの法線ベクトルｖ１３とのなす角度θを切り替えるために、第２の基板１３を可動する。
　図１２Ａ、図１２Ｂ及び図１２Ｃのそれぞれは、可動機構３０によって、反射面１２ａと反射面１３ａとの角度αが切り替えられた状態を示す説明図である。
　図１２Ａでの角度αが約１０度、図１２Ｂでの角度αが約２５度、図１２Ｂでの角度αが約３５度である。 FIG. 11 is a perspective view showing the reflector antenna device 3 according to the second embodiment. In FIG. 11, the same reference numerals as those in FIG. 2 indicate the same or corresponding parts, and thus the description thereof will be omitted.
The movable mechanism 30 is realized by a hinge or the like capable of switching the angle θ formed by the normal vector v 12 of the reflecting surface 12a and the normal vector v 13 of the reflecting surface 13a. That is, as shown in FIG. 12, the movable mechanism 30 is realized by a hinge or the like capable of switching the angle α between the reflecting surface 12a and the reflecting surface 13a. α = θ.
The movable mechanism 30 moves the second substrate 13 in order to switch the angle θ formed by the normal vector v 12 of the reflecting surface 12a and the normal vector v 13 of the reflecting surface 13a.
12A, 12B, and 12C are explanatory views showing a state in which the angle α between the reflecting surface 12a and the reflecting surface 13a is switched by the movable mechanism 30.
The angle α in FIG. 12A is about 10 degrees, the angle α in FIG. 12B is about 25 degrees, and the angle α in FIG. 12B is about 35 degrees.
　可動機構３０が、反射面１２ａと反射面１３ａとの角度αを切り替えることによって、反射面１３ａによる電波の位相が変化し、当該電波の反射方向が変化する。
　したがって、導体パッチ２１，２３の大きさ等が調整された後に、一次放射器１１から放射される電波の周波数が切り替えられることによって、電波の放射方向にバラツキが生じても、反射面１２ａと反射面１３ａとの角度αを切り替えることによって、電波の放射方向のバラツキを抑えることができる。 When the movable mechanism 30 switches the angle α between the reflecting surface 12a and the reflecting surface 13a, the phase of the radio wave by the reflecting surface 13a changes, and the reflecting direction of the radio wave changes.
Therefore, after the size of the conductor patches 21 and 23 is adjusted, the frequency of the radio wave radiated from the primary radiator 11 is switched, so that even if the radiation direction of the radio wave varies, the reflection surface 12a and the reflection surface 12a are reflected. By switching the angle α with the surface 13a, it is possible to suppress variations in the radiation direction of radio waves.
　図１３は、反射鏡アンテナ装置３の放射特性のシミュレーション結果を示す説明図である。
　図１３において、実線は、角度α＝３０度であるときの放射特性であり、破線は、角度α＝０度であるときの放射特性である。図１３では、角度α＝０度であるときの利得で、放射特性が規格化されている。
　図１３が示すグラフの横軸は、反射鏡アンテナ装置３から放射される電波の放射方向を示しており、図１３が示すグラフの縦軸は、反射鏡アンテナ装置３から放射される電波の利得を示している。
　図１３の例では、可動機構３０が、角度αを３０度から０度に切り替えることによって、反射鏡アンテナ装置３から放射される電波が形成するビームのうち、利得が１０［ｄＢ］のビームの幅が、４．８度の角度から、７．６度の角度に変化している。 FIG. 13 is an explanatory diagram showing a simulation result of the radiation characteristics of the reflector antenna device 3.
In FIG. 13, the solid line is the radiation characteristic when the angle α = 30 degrees, and the broken line is the radiation characteristic when the angle α = 0 degrees. In FIG. 13, the radiation characteristics are standardized by the gain when the angle α = 0 degrees.
The horizontal axis of the graph shown in FIG. 13 indicates the radiation direction of the radio wave radiated from the reflector antenna device 3, and the vertical axis of the graph shown in FIG. 13 is the gain of the radio wave radiated from the reflector antenna device 3. Is shown.
In the example of FIG. 13, among the beams formed by the radio waves radiated from the reflector antenna device 3 by the movable mechanism 30 switching the angle α from 30 degrees to 0 degrees, the beam having a gain of 10 [dB] The width has changed from an angle of 4.8 degrees to an angle of 7.6 degrees.
　以上の実施の形態２では、第１の基板１２における反射面１２ａの法線ベクトルｖ１２と、第２の基板１３における反射面１３ａの法線ベクトルｖ１３とのなす角度θを切り替えるために、第２の基板１３を可動する可動機構３０を備えるように、図１１に示す反射鏡アンテナ装置３を構成した。したがって、図１１に示す反射鏡アンテナ装置３は、図２に示す反射鏡アンテナ装置３よりも更に、電波の放射方向のバラツキを抑えることができる。 In the second above embodiment, in order to switch the normal vector v 12 of the reflective surface 12a of the first substrate 12, the angle θ between normal vector v 13 of the reflecting surface 13a of the second substrate 13, The reflector antenna device 3 shown in FIG. 11 is configured so as to include a movable mechanism 30 that can move the second substrate 13. Therefore, the reflector antenna device 3 shown in FIG. 11 can further suppress variations in the radiation direction of radio waves as compared with the reflector antenna device 3 shown in FIG.
実施の形態３．
　図２に示す反射鏡アンテナ装置３では、一次放射器１１として、バックファイアアンテナを用いている。
　実施の形態３では、図１４に示すように、一次放射器４１として、ホーンアンテナを用いている反射鏡アンテナ装置３について説明する。 Embodiment 3.
In the reflector antenna device 3 shown in FIG. 2, a backfire antenna is used as the primary radiator 11.
In the third embodiment, as shown in FIG. 14, a reflector antenna device 3 using a horn antenna as the primary radiator 41 will be described.
　図１４は、実施の形態３に係る反射鏡アンテナ装置３を示す側面図である。図１４において、図２と同一符号は同一又は相当部分を示すので説明を省略する。
　一次放射器４１は、ホーンアンテナによって実現されている。
　一次放射器４１は、図２に示す一次放射器１１と同様に、信号送信部１から出力された送信信号に係る電波を第１の基板１２の反射面１２ａ及び第２の基板１３の反射面１３ａのそれぞれに向けて放射する。
　図１４に示す反射鏡アンテナ装置３は、一次放射器４１が、図２に示す反射鏡アンテナ装置３に適用されているものである。しかし、これは一例に過ぎず、一次放射器４１が、図１１に示す反射鏡アンテナ装置３に適用されていてもよい。 FIG. 14 is a side view showing the reflector antenna device 3 according to the third embodiment. In FIG. 14, the same reference numerals as those in FIG. 2 indicate the same or corresponding parts, and thus the description thereof will be omitted.
The primary radiator 41 is realized by a horn antenna.
Similar to the primary radiator 11 shown in FIG. 2, the primary radiator 41 transmits radio waves related to the transmission signal output from the signal transmission unit 1 to the reflection surface 12a of the first substrate 12 and the reflection surface of the second substrate 13. It radiates toward each of 13a.
In the reflector antenna device 3 shown in FIG. 14, the primary radiator 41 is applied to the reflector antenna device 3 shown in FIG. However, this is only an example, and the primary radiator 41 may be applied to the reflector antenna device 3 shown in FIG.
　図１４に示す反射鏡アンテナ装置３でも、図２に示す反射鏡アンテナ装置３と同様に、ヒンジ１４によって、第２の基板１３における反射面１３ａの法線ベクトルｖ１３が、第１の基板１２における反射面１２ａの法線ベクトルｖ１２に対して傾けられている（図１５を参照）。
　図１５は、反射面１２ａの法線ベクトルｖ１２及び反射面１３ａの法線ベクトルｖ１３と、反射面１２ａによる電波の反射方向及び反射面１３ａによる電波の反射方向とを示す説明図である。 In the reflector antenna device 3 shown in FIG. 14, similarly to the reflector antenna device 3 shown in FIG. 2, the normal vector v 13 of the reflection surface 13a on the second substrate 13 is changed to the first substrate 12 by the hinge 14. It is tilted with respect to the normal vector v 12 of the reflection surface 12a in (see FIG. 15).
FIG. 15 is an explanatory diagram showing the normal vector v 12 of the reflecting surface 12a, the normal vector v 13 of the reflecting surface 13a, the reflection direction of the radio wave by the reflecting surface 12a, and the reflecting direction of the radio wave by the reflecting surface 13a.
　図１４に示す反射鏡アンテナ装置３でも、図２に示す反射鏡アンテナ装置３と同様に、第１の基板１２における反射面１２ａの法線ベクトルｖ１２と、第２の基板１３における反射面１３ａの法線ベクトルｖ１３とのなす角度θが、０度よりも大きく、９０度よりも小さい。
　したがって、図１４に示す反射鏡アンテナ装置３でも、図２に示す反射鏡アンテナ装置３と同様に、反射板として、１つの平板状の誘電体基板のみを備えるリフレクトアレーアンテナよりも、電波の放射方向のバラツキを抑えることができる。 In the reflector antenna device 3 shown in FIG. 14, similarly to the reflector antenna device 3 shown in FIG. 2, the normal vector v 12 of the reflection surface 12a on the first substrate 12 and the reflection surface 13a on the second substrate 13 The angle θ formed by the normal vector v 13 of is larger than 0 degrees and smaller than 90 degrees.
Therefore, the reflector antenna device 3 shown in FIG. 14 also emits radio waves as a reflector, as compared with the reflect array antenna provided with only one flat plate-shaped dielectric substrate, as in the reflector antenna device 3 shown in FIG. It is possible to suppress the variation in direction.
実施の形態４．
　実施の形態４では、副反射鏡５２を備えている反射鏡アンテナ装置３について説明する。
　図１６は、実施の形態４に係る反射鏡アンテナ装置３を示す側面図である。図１６において、図２と同一符号は同一又は相当部分を示すので説明を省略する。
　一次放射器５１は、ホーンアンテナによって実現されている。
　一次放射器５１は、信号送信部１から出力された送信信号に係る電波を副反射鏡５２に向けて放射する。
　副反射鏡５２は、一次放射器５１から放射された電波を第１の基板１２の反射面１２ａ及び第２の基板１３の反射面１３ａのそれぞれに向けて反射させる。
　図１６に示す反射鏡アンテナ装置３は、一次放射器５１及び副反射鏡５２が、図２に示す反射鏡アンテナ装置３に適用されているものである。しかし、これは一例に過ぎず、一次放射器５１及び副反射鏡５２が、図１１に示す反射鏡アンテナ装置３に適用されていてもよい。 Embodiment 4.
In the fourth embodiment, the reflector antenna device 3 including the secondary reflector 52 will be described.
FIG. 16 is a side view showing the reflector antenna device 3 according to the fourth embodiment. In FIG. 16, the same reference numerals as those in FIG. 2 indicate the same or corresponding parts, and thus the description thereof will be omitted.
The primary radiator 51 is realized by a horn antenna.
The primary radiator 51 radiates radio waves related to the transmission signal output from the signal transmission unit 1 toward the secondary reflector 52.
The secondary reflector 52 reflects the radio waves radiated from the primary radiator 51 toward the reflecting surface 12a of the first substrate 12 and the reflecting surface 13a of the second substrate 13, respectively.
In the reflector antenna device 3 shown in FIG. 16, the primary radiator 51 and the secondary reflector 52 are applied to the reflector antenna device 3 shown in FIG. However, this is only an example, and the primary radiator 51 and the secondary reflector 52 may be applied to the reflector antenna device 3 shown in FIG.
　図１６に示す反射鏡アンテナ装置３でも、図２に示す反射鏡アンテナ装置３と同様に、ヒンジ１４によって、第２の基板１３における反射面１３ａの法線ベクトルｖ１３が、第１の基板１２における反射面１２ａの法線ベクトルｖ１２に対して傾けられている（図１７を参照）。
　図１７は、反射面１２ａの法線ベクトルｖ１２及び反射面１３ａの法線ベクトルｖ１３と、反射面１２ａによる電波の反射方向及び反射面１３ａによる電波の反射方向とを示す説明図である。 In the reflector antenna device 3 shown in FIG. 16, similarly to the reflector antenna device 3 shown in FIG. 2, the normal vector v 13 of the reflection surface 13a on the second substrate 13 is changed to the first substrate 12 by the hinge 14. It is tilted with respect to the normal vector v 12 of the reflection surface 12a in (see FIG. 17).
FIG. 17 is an explanatory diagram showing the normal vector v 12 of the reflecting surface 12a, the normal vector v 13 of the reflecting surface 13a, the reflection direction of the radio wave by the reflecting surface 12a, and the reflecting direction of the radio wave by the reflecting surface 13a.
　図１６に示す反射鏡アンテナ装置３でも、図２に示す反射鏡アンテナ装置３と同様に、第１の基板１２における反射面１２ａの法線ベクトルｖ１２と、第２の基板１３における反射面１３ａの法線ベクトルｖ１３とのなす角度θが、０度よりも大きく、９０度よりも小さい。
　したがって、図１６に示す反射鏡アンテナ装置３でも、図２に示す反射鏡アンテナ装置３と同様に、反射板として、１つの平板状の誘電体基板のみを備えるリフレクトアレーアンテナよりも、電波の放射方向のバラツキを抑えることができる。 In the reflector antenna device 3 shown in FIG. 16, similarly to the reflector antenna device 3 shown in FIG. 2, the normal vector v 12 of the reflection surface 12a on the first substrate 12 and the reflection surface 13a on the second substrate 13 The angle θ formed by the normal vector v 13 of is larger than 0 degrees and smaller than 90 degrees.
Therefore, the reflector antenna device 3 shown in FIG. 16 also emits radio waves more than the reflect array antenna provided with only one flat plate-shaped dielectric substrate as the reflector, as in the reflector antenna device 3 shown in FIG. It is possible to suppress the variation in direction.
　図１６に示す反射鏡アンテナ装置３は、副反射鏡５２として、電波の反射面の中央部分が、反射面の周囲部分よりも凹んでいる、リングフォーカスグレゴリアンの副反射鏡を用いている。
　しかし、これは一例に過ぎず、反射鏡アンテナ装置３が、例えば、図１８に示すように、電波の反射面の中央部分が、反射面の周囲部分よりも凸になっている、リングフォーカスカセグレンの副反射鏡５３を備えていてもよい。
　図１８は、実施の形態４に係る他の反射鏡アンテナ装置３を示す側面図である。図１８において、図２及び図１６と同一符号は同一又は相当部分を示すので説明を省略する。
　副反射鏡５３は、図１６に示す副反射鏡５２と同様に、一次放射器５１から放射された電波を第１の基板１２の反射面１２ａ及び第２の基板１３の反射面１３ａのそれぞれに向けて反射させる。
　図１８に示す反射鏡アンテナ装置３は、一次放射器５１及び副反射鏡５３が、図２に示す反射鏡アンテナ装置３に適用されているものである。しかし、これは一例に過ぎず、一次放射器５１及び副反射鏡５３が、図１１に示す反射鏡アンテナ装置３に適用されていてもよい。
　なお、反射鏡アンテナ装置３が備える副反射鏡としては、リングフォーカスグレゴリアンの副反射鏡５２、又は、リングフォーカスカセグレンの副反射鏡５３に限るものではなく、任意の形状の副反射鏡を用いることができる。 The reflector antenna device 3 shown in FIG. 16 uses a ring-focused Gregorian secondary reflector as the secondary reflector 52, in which the central portion of the reflecting surface of the radio wave is recessed from the peripheral portion of the reflecting surface.
However, this is only an example, and the reflector antenna device 3 has a ring focus Cassegrain in which, for example, as shown in FIG. 18, the central portion of the reflecting surface of radio waves is more convex than the peripheral portion of the reflecting surface. The sub-reflector 53 of the above may be provided.
FIG. 18 is a side view showing another reflector antenna device 3 according to the fourth embodiment. In FIG. 18, the same reference numerals as those in FIGS. 2 and 16 indicate the same or corresponding parts, and thus the description thereof will be omitted.
Similar to the sub-reflecting mirror 52 shown in FIG. 16, the sub-reflecting mirror 53 transmits the radio waves radiated from the primary radiator 51 to the reflecting surface 12a of the first substrate 12 and the reflecting surface 13a of the second substrate 13, respectively. Reflect toward.
In the reflector antenna device 3 shown in FIG. 18, the primary radiator 51 and the secondary reflector 53 are applied to the reflector antenna device 3 shown in FIG. However, this is only an example, and the primary radiator 51 and the secondary reflector 53 may be applied to the reflector antenna device 3 shown in FIG.
The sub-reflector included in the reflector antenna device 3 is not limited to the ring-focus Gregorian sub-reflector 52 or the ring-focus Cassegrain sub-reflector 53, and any shape of the sub-reflector may be used. Can be done.
　また、反射鏡アンテナ装置３が、例えば、図１９に示すように、一次放射器５１から放射された電波を反射させる副反射鏡として、電波の反射面５４ａに、複数の導体パッチ５５が配置されている第３の基板５４を備えるようにしてもよい。
　図１９は、実施の形態４に係る他の反射鏡アンテナ装置３を示す側面図である。図１９において、図２及び図１６と同一符号は同一又は相当部分を示すので説明を省略する。
　図２０は、実施の形態４に係る他の反射鏡アンテナ装置３における第３の基板５４の反射面５４ａを示す平面図である。
　図２１は、実施の形態４に係る他の反射鏡アンテナ装置３における第３の基板５４を示す側面図である。 Further, as shown in FIG. 19, the reflecting mirror antenna device 3 has a plurality of conductor patches 55 arranged on the reflecting surface 54a of the radio waves as a secondary reflecting mirror that reflects the radio waves radiated from the primary radiator 51, for example. The third substrate 54 may be provided.
FIG. 19 is a side view showing another reflector antenna device 3 according to the fourth embodiment. In FIG. 19, the same reference numerals as those in FIGS. 2 and 16 indicate the same or corresponding parts, and thus the description thereof will be omitted.
FIG. 20 is a plan view showing the reflection surface 54a of the third substrate 54 in the other reflector antenna device 3 according to the fourth embodiment.
FIG. 21 is a side view showing a third substrate 54 in the other reflector antenna device 3 according to the fourth embodiment.
　第３の基板５４は、例えば、誘電体基板又は発泡板によって実現される。
　第３の基板５４の反射面５４ａは、一次放射器１１から放射された電波を、第１の基板１２の反射面１２ａ及び第２の基板１３の反射面１３ａのそれぞれに向けて反射させる面であり、反射面５４ａには、複数の導体パッチ５５が配置されている。
　第３の基板５４の背面５４ｂは、反射面５４ａと反対側の面であり、背面５４ｂの全体に導体５６が配置されている。 The third substrate 54 is realized, for example, by a dielectric substrate or a foam plate.
The reflecting surface 54a of the third substrate 54 is a surface that reflects the radio waves radiated from the primary radiator 11 toward each of the reflecting surface 12a of the first substrate 12 and the reflecting surface 13a of the second substrate 13. Yes, a plurality of conductor patches 55 are arranged on the reflecting surface 54a.
The back surface 54b of the third substrate 54 is a surface opposite to the reflecting surface 54a, and the conductor 56 is arranged on the entire back surface 54b.
　導体パッチ５５は、第３の基板５４における反射面５４ａに施されている導体である。
　反射面５４ａに施されている複数の導体パッチ５５におけるそれぞれの大きさ、又は、複数の導体パッチ５５におけるそれぞれの配置等を調整することによって、反射面５４ａにより反射される電波の位相を変えることが可能である。
　導体５６は、第３の基板５４における背面５４ｂの全体に施されている導体である。 The conductor patch 55 is a conductor applied to the reflecting surface 54a of the third substrate 54.
The phase of the radio wave reflected by the reflecting surface 54a can be changed by adjusting the size of each of the plurality of conductor patches 55 applied to the reflecting surface 54a or the arrangement of each of the plurality of conductor patches 55. Is possible.
The conductor 56 is a conductor provided on the entire back surface 54b of the third substrate 54.
　図１９に示す反射鏡アンテナ装置３でも、図２に示す反射鏡アンテナ装置３と同様に、第１の基板１２における反射面１２ａの法線ベクトルｖ１２と、第２の基板１３における反射面１３ａの法線ベクトルｖ１３とのなす角度θが、０度よりも大きく、９０度よりも小さい。
　したがって、図１９に示す反射鏡アンテナ装置３でも、図２に示す反射鏡アンテナ装置３と同様に、反射板として、１つの平板状の誘電体基板のみを備えるリフレクトアレーアンテナよりも、電波の放射方向のバラツキを抑えることができる。 In the reflector antenna device 3 shown in FIG. 19, similarly to the reflector antenna device 3 shown in FIG. 2, the normal vector v 12 of the reflection surface 12a on the first substrate 12 and the reflection surface 13a on the second substrate 13 The angle θ formed by the normal vector v 13 of is larger than 0 degrees and smaller than 90 degrees.
Therefore, the reflector antenna device 3 shown in FIG. 19 also emits radio waves more than the reflect array antenna provided with only one flat plate-shaped dielectric substrate as the reflector, as in the reflector antenna device 3 shown in FIG. It is possible to suppress the variation in direction.
　なお、本開示は、各実施の形態の自由な組み合わせ、あるいは各実施の形態の任意の構成要素の変形、もしくは各実施の形態において任意の構成要素の省略が可能である。 In the present disclosure, it is possible to freely combine the embodiments, modify any component of each embodiment, or omit any component in each embodiment.
　本開示は、一次放射器を備える反射鏡アンテナ装置に適している。
　また、本開示は、反射鏡アンテナ装置を備える通信装置に適している。 The present disclosure is suitable for reflector antenna devices with a primary radiator.
Further, the present disclosure is suitable for a communication device including a reflector antenna device.
　１　信号送信部、２　信号受信部、３　反射鏡アンテナ装置、１１　一次放射器、１１ａ　放射口、１２　第１の基板、１２ａ　反射面、１２ｂ　背面、１３　第２の基板、１３ａ　反射面、１３ｂ　背面、１４　ヒンジ、２１　導体パッチ、２２　導体、２３　導体パッチ、２４　導体、３０　可動機構、４１　一次放射器、５１　一次放射器、５２，５３　副反射鏡、５４　第３の基板、５４ａ　反射面、５４ｂ　背面、５５　導体パッチ、５６　導体。 1 signal transmitter, 2 signal receiver, 3 reflector antenna device, 11 primary radiator, 11a emission port, 12 first substrate, 12a reflecting surface, 12b back surface, 13 second substrate, 13a reflecting surface, 13b back surface , 14 hinges, 21 conductor patches, 22 conductors, 23 conductor patches, 24 conductors, 30 movable mechanisms, 41 primary radiators, 51 primary radiators, 52, 53 secondary reflectors, 54 third substrates, 54a reflective surfaces, 54b Back, 55 conductor patch, 56 conductor.

Claims (13)

  1. 　電波を放射する一次放射器と、
    　前記一次放射器から放射された電波を反射する反射面に、複数の導体パッチが配置されている第１の基板と、
    　前記第１の基板の周囲に配置されており、前記一次放射器から放射された電波を反射する反射面に、複数の導体パッチが配置されている第２の基板とを備え、
    　前記第１の基板における反射面の法線ベクトルと、前記第２の基板における反射面の法線ベクトルとのなす角度が、０度よりも大きく、９０度よりも小さいことを特徴とする反射鏡アンテナ装置。     A primary radiator that radiates radio waves and
    A first substrate on which a plurality of conductor patches are arranged on a reflecting surface that reflects radio waves radiated from the primary radiator, and
    A second substrate, which is arranged around the first substrate and has a plurality of conductor patches arranged on a reflecting surface that reflects radio waves radiated from the primary radiator, is provided.
    A reflector characterized in that the angle formed by the normal vector of the reflecting surface on the first substrate and the normal vector of the reflecting surface on the second substrate is larger than 0 degrees and smaller than 90 degrees. Antenna device.
  2. 　前記第２の基板を複数備えたことを特徴とする請求項１記載の反射鏡アンテナ装置。 The reflector antenna device according to claim 1, wherein a plurality of the second substrates are provided.
  3. 　前記第１の基板と、前記第２の基板とを接続するヒンジを備えたことを特徴とする請求項１記載の反射鏡アンテナ装置。 The reflector antenna device according to claim 1, further comprising a hinge for connecting the first substrate and the second substrate.
  4. 　前記第１の基板における反射面の法線ベクトルと、前記第２の基板における反射面の法線ベクトルとのなす角度を切り替えるために、前記第２の基板を可動する可動機構を備えたことを特徴とする請求項１記載の反射鏡アンテナ装置。 A movable mechanism for moving the second substrate is provided in order to switch the angle formed by the normal vector of the reflecting surface on the first substrate and the normal vector of the reflecting surface on the second substrate. The reflector antenna device according to claim 1.
  5. 　前記一次放射器として、バックファイアアンテナを用いていることを特徴とする請求項１記載の反射鏡アンテナ装置。 The reflector antenna device according to claim 1, wherein a backfire antenna is used as the primary radiator.
  6. 　前記一次放射器として、ホーンアンテナを用いていることを特徴とする請求項１記載の反射鏡アンテナ装置。 The reflector antenna device according to claim 1, wherein a horn antenna is used as the primary radiator.
  7. 　前記一次放射器として、ホーンアンテナを用いており、
    　前記ホーンアンテナから放射された電波を前記第１の基板の反射面及び前記第２の基板の反射面のそれぞれに向けて反射させる副反射鏡を備えたことを特徴とする請求項１記載の反射鏡アンテナ装置。     A horn antenna is used as the primary radiator.
    The reflection according to claim 1, further comprising a secondary reflecting mirror that reflects radio waves radiated from the horn antenna toward each of the reflecting surface of the first substrate and the reflecting surface of the second substrate. Mirror antenna device.
  8. 　前記副反射鏡として、
    　前記ホーンアンテナから放射された電波を反射する反射面に、複数の導体パッチが配置されている第３の基板を用いていることを特徴とする請求項７記載の反射鏡アンテナ装置。     As the secondary reflector
    The reflector antenna device according to claim 7, wherein a third substrate on which a plurality of conductor patches are arranged is used on a reflecting surface that reflects radio waves radiated from the horn antenna.
  9. 　前記第１の基板の反射面及び前記第２の基板の反射面のそれぞれに配置される導体パッチの形状が、円形であることを特徴とする請求項１記載の反射鏡アンテナ装置。 The reflector antenna device according to claim 1, wherein the conductor patches arranged on the reflective surface of the first substrate and the reflective surface of the second substrate are circular in shape.
  10. 　前記第１の基板の反射面及び前記第２の基板の反射面のそれぞれに配置される導体パッチの形状が、矩形であることを特徴とする請求項１記載の反射鏡アンテナ装置。 The reflector antenna device according to claim 1, wherein the conductor patches arranged on the reflective surface of the first substrate and the reflective surface of the second substrate are rectangular in shape.
  11. 　前記第１の基板の反射面及び前記第２の基板の反射面のそれぞれに配置される導体パッチの形状が、リング形であることを特徴とする請求項１記載の反射鏡アンテナ装置。 The reflector antenna device according to claim 1, wherein the conductor patches arranged on the reflective surface of the first substrate and the reflective surface of the second substrate are ring-shaped.
  12. 　前記第１の基板の反射面及び前記第２の基板の反射面のそれぞれに配置される導体パッチの形状が、矩形の枠形状であることを特徴とする請求項１記載の反射鏡アンテナ装置。 The reflector antenna device according to claim 1, wherein the shape of the conductor patch arranged on each of the reflecting surface of the first substrate and the reflecting surface of the second substrate is a rectangular frame shape.
  13. 　請求項１から請求項１２のうちのいずれか１項記載の反射鏡アンテナ装置を備えた通信装置。 A communication device provided with the reflector antenna device according to any one of claims 1 to 12.
PCT/JP2020/001905 2020-01-21 2020-01-21 Reflector antenna device and communication device WO2021149143A1 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010020914A1 (en) * 2000-03-10 2001-09-13 Antoine Roederer Reflector antenna comprising a plurality of panels
JP2014165754A (en) * 2013-02-26 2014-09-08 Mitsubishi Heavy Ind Ltd Directional characteristic variable antenna
JP2018510559A (en) * 2015-02-24 2018-04-12 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン REFLECTOR WITH ELECTRONIC CIRCUIT AND ANTENNA DEVICE HAVING REFLECTOR

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010020914A1 (en) * 2000-03-10 2001-09-13 Antoine Roederer Reflector antenna comprising a plurality of panels
JP2014165754A (en) * 2013-02-26 2014-09-08 Mitsubishi Heavy Ind Ltd Directional characteristic variable antenna
JP2018510559A (en) * 2015-02-24 2018-04-12 フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン REFLECTOR WITH ELECTRONIC CIRCUIT AND ANTENNA DEVICE HAVING REFLECTOR

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