WO2000039886A1 - Antenne, dispositif radio et repetiteur radio - Google Patents
Antenne, dispositif radio et repetiteur radio Download PDFInfo
- Publication number
- WO2000039886A1 WO2000039886A1 PCT/JP1999/007120 JP9907120W WO0039886A1 WO 2000039886 A1 WO2000039886 A1 WO 2000039886A1 JP 9907120 W JP9907120 W JP 9907120W WO 0039886 A1 WO0039886 A1 WO 0039886A1
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- antenna
- wireless
- antennas
- wavelength
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/06—Rhombic antennas; V-antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
Definitions
- the present invention mainly relates to an antenna device in a mobile communication system such as a PHS (Personal Handyphone System), and a wireless device and a wireless relay device using the same.
- a mobile communication system such as a PHS (Personal Handyphone System)
- PHS Personal Handyphone System
- a small indoor base station device (base unit) in a mobile communication system such as a PHS uses an omnidirectional antenna such as a sleeve antenna, and the antenna gain has been less than about 2 dBi.
- a fixed terminal device used in a local wireless network (wireless oral loop: WLL) using a mobile communication system such as a PHS requires about 10 dBi.
- the frequencies of the above mobile communication systems are mainly in the 1900MHz and 800MHz bands.
- an antenna having a high gain in these frequency bands for example, as shown in JP-A-5-279732, JP-A-9-232851, JP-A-8-139521, a multi-stage collinear array antenna is disclosed.
- This type of antenna secures high gain by narrowing the directivity in the vertical plane by arranging vertically omnidirectional antennas in the horizontal plane with vertical polarization in multiple stages.
- an endfire antenna such as a Yagi antenna or a dipole antenna with a reflector is known.
- This type of antenna secures high gain by arranging parasitic elements in a direction parallel to the main radiation direction.
- a broadside array antenna represented by a patch array antenna is known.
- This kind of ante The antenna has multiple antennas arranged in a plane perpendicular to the main radiation direction and distributes and supplies power to secure high gain.
- thin antennas represented by a loop antenna with a reflector and a slot antenna are known.
- a broadside array antenna mainly used in the VHF band for example, an antenna in which two one-wavelength antennas are arranged in a square or a circle as shown in the Antenna Handbook (CQ Publishing Company) p.366. It is known that a rhombic antenna using this technique can achieve a gain of about 6 dBi in the 1900 MHz band or 800 MHz band. Are known.
- FIG. 3 is a diagram showing the structure of a conventionally known antenna device in which six rhombic antennas are connected in parallel and their current distribution.
- This antenna device is configured by connecting six rhombic antennas 14 to 19 in parallel, and a feeder 20 is connected at the center.
- the rhombic antennas 14 to 19 have the length a of one side of the rhombus set to a half wavelength (person / 2), operate as a four half-wavelength broadside array antenna, and operate in the X direction. Emit a vertically polarized wave in the X direction.
- the operating frequency of the antenna device when the operating frequency of the antenna device is set to 1900 MHz, the length a of one side of the diamond is 79 mm. The total width of the antenna device is 670mm.
- the current distribution of the rhombic antennas 16 to 19 near the center in particular cannot be optimized. For this reason, it is known that the effect of multiple arrangements is relatively low, with a gain of about 11.5 dBi on its own, and a gain of about 15.5 dBi when combined with a reflector.
- a twin-loop antenna in which a plurality of one-wavelength loop antennas are connected in parallel or in series is known.
- Figure 4 shows the structure of a conventionally known dual loop antenna.
- This dual loop antenna is configured so that two one-wavelength loop antennas are connected in parallel via a half-wavelength transmission line, and a feeder is connected to the center.
- the single-wavelength loop antennas 21 and 22 emit vertically polarized waves in the X and X directions. Operate to fire.
- the lengths of the transmission lines 23 and 24 are set to 1/4 wavelength, and the 1-wavelength loop antennas 21 and 22 are connected, and a feeder 25 is connected to the midpoint.
- the two one-wavelength loop antennas 21 and 22 can be excited with the same phase, and have a gain of about 8 dBi by themselves and a gain of about 12 dBi when combined with a reflector. It is known.
- a radio relay device used in the mobile communication system as described above for example, as shown in Japanese Patent Application Laid-Open No. 8-8807, a radio relay device using a common antenna filter and a large number of narrow band amplifiers is used.
- a device using a switch and an amplifier synchronized with the time of upstream and downstream in a time division duplex (TDD) system As shown in Japanese Patent Publication No. 298485, there is known a time-division bidirectional communication system having two relay systems, up and down.
- TDD time division duplex
- the above-mentioned conventional thin antenna has a problem that, although having a thin structure, the radiation directivity cannot be optimized to desired characteristics.
- the above-described conventional wireless relay device has a problem that the configuration of an amplifier for obtaining a large relay gain is complicated and large, and is not suitable for a small relay device installed indoors.
- the present invention comprehensively solves the problems of the various conventional antennas described above, and provides a high-gain antenna device for a UHF band and quasi-microwave band mobile communication system that is small, thin, and simple. It is intended to be realized with a simple configuration. Another object is to realize a wireless relay device installed indoors with a small and simple configuration. Disclosure of the invention
- the present invention provides an antenna device according to the present invention, wherein each of two one-wavelength antenna elements is bent at the center so as to face each other to form a rhombus, and one end thereof is opened.
- the first and second antennas with connection portions at the ends are arranged at both ends, and the center half-wavelength portion of each of the two one-wavelength antenna elements is moved with respect to a straight line orthogonal to the antenna element.
- a symmetrically bent third antenna is arranged at the center, its both ends are connected to the first and second antennas, and a common feeder is provided.
- an antenna device includes a plurality of antennas, each of which has two one-wavelength antenna elements bent at the center and opposed to each other to form a rhombus, a transmission line, and a reflecting plate.
- the main polarization direction was arranged in the direction perpendicular to the diamond-shaped surface at an interval of an integral multiple of half a wavelength, so that multiple antennas were connected alternately by transmission lines, and multiple antennas were connected.
- the antenna system is open at the end and a feeder is provided at the other end. The configuration was such that the reflection plate was arranged. With this configuration, an antenna device having a high gain can be realized with a simple configuration.
- a wireless device includes a printed circuit board on which an antenna is formed by a printed pattern, and a wireless circuit unit, wherein the printed circuit board and the wireless circuit unit are fixed at a fixed interval, and a housing of the wireless circuit unit is provided. It was configured to also be used as a reflection member. With this configuration, a wireless device including an antenna device having a high gain can be realized with a simple configuration.
- the wireless relay device has a configuration in which a plurality of antenna devices are arranged in the same housing with their main radiation directions directed in different directions, and the respective feeding units of the plurality of antenna devices are electrically connected. And With this configuration, a wireless relay device installed indoors can be realized with a simple configuration.
- the wireless relay device has a configuration in which a plurality of antenna devices are arranged in different indoor spaces, and respective feeding units of the plurality of antenna devices are connected by cables. With this configuration, a wireless relay device installed indoors can be realized with a simple configuration.
- the wireless relay device has a configuration in which a plurality of antenna devices are embedded in different indoor walls, and respective feeding units of the plurality of antenna devices are connected by cables. With this configuration, a wireless relay device installed indoors can be realized with a simple configuration.
- each of the two one-wavelength antenna elements is bent at the center so as to face each other to form a rhombus, and one end is separated, and a connection portion is formed at the other end.
- the first and second antennas provided are arranged at both ends, and the central half-wavelength portion of each of the two one-wavelength antenna elements is bent symmetrically with respect to a straight line orthogonal to the antenna elements.
- the invention described in claim 2 of the present invention is the invention according to claim 1, wherein the first to third antennas are configured by a printed pattern on a printed board, and An antenna device in which a lint board and a reflector are fixed at a fixed interval.
- the first to third antennas are held by the printed circuit board, and radio waves radiated backward are reflected by the reflector and forward. It has the effect of concentrating.
- the invention described in claim 3 of the present invention is the invention according to claim 2, further comprising: a plurality of antenna systems including the first to third antennas;
- the main radiation direction and the main polarization direction are aligned in the same manner, and the main radiation direction and the main polarization direction are configured by a printed pattern on a printed circuit board.
- An antenna device connected by a power supply pattern, and the second terminals of the power supply units of the plurality of antenna systems are connected by a second power supply terminal on the other surface of the printed circuit board;
- the first terminal of the power supply unit is supplied with power from the first power supply pattern on one surface of the printed circuit board, and the second terminal of the power supply unit is supplied with power from the second power supply pattern on the other surface of the printed circuit board.
- Main radiation direction from system Has an effect of radio waves main polarization direction is aligned is emitted.
- the invention described in claim 4 of the present invention includes a plurality of antennas each formed by bending two centrally bent one-wavelength antenna elements at the center and facing each other to form a rhombus, a transmission line, and a reflector.
- the plurality of antennas are arranged in a direction perpendicular to the rhombic surface at an interval of an integral multiple of a half wavelength so that the main polarization directions are the same, and the plurality of antennas are alternately connected by a transmission line.
- the antenna system to which the plurality of antennas are connected has an open end and a feeder is provided at the other end, and the reflectors are arranged at regular intervals perpendicular to the rhombic surfaces of the plurality of antennas.
- the antenna device has the effect that radio waves radiated from a plurality of antennas reinforce each other in a direction perpendicular to the rhombic surface and are concentrated by the reflector.
- the invention described in claim 5 of the present invention is the invention according to claim 4, wherein two or more antenna devices are arranged in a direction parallel to the diamond-shaped surface and power is supplied in parallel.
- An antenna device in which a plurality of antenna devices are fed in phase, and have the effect that radio waves radiated from the antenna devices reinforce each other.
- the invention described in claim 6 of the present invention is the invention according to claim 4 or 5, wherein the plurality of antennas are configured by a printed pattern on a plurality of printed boards, An antenna device in which a plurality of printed circuit boards are fixed at regular intervals. Several antennas are held by the printed circuit board, and a plurality of printed circuit boards are fixed at fixed intervals.
- the invention described in claim 7 of the present invention is the invention according to claim 6, further comprising: a relay printed circuit board having a transmission line formed by a printed pattern; and An antenna device that connects between printed circuit boards.
- a plurality of printed circuit boards are fixed at fixed intervals by a relay printed circuit board, and a plurality of antennas are connected by a transmission line composed of a printed pattern on the relay printed circuit board. It has the effect of
- the invention according to claim 8 of the present invention includes a printed circuit board on which an antenna is formed by a printed pattern, and a wireless circuit unit, wherein the printed circuit board and the wireless circuit unit are fixed at a fixed interval,
- This is a wireless device that uses the housing of the wireless circuit part as a reflection member.
- the antenna is held by the printed circuit board, the distance between the printed circuit board and the wireless circuit part is kept constant, and radio waves radiated backward. Is reflected by the housing of the wireless circuit unit and has a function of concentrating forward.
- the invention according to claim 9 of the present invention is characterized in that a plurality of antenna devices are arranged in the same housing with their main radiation directions directed in different directions, and the power supply of each of the plurality of antenna devices is performed. It is a wireless relay device in which the sections are electrically connected, and has the effect of relaying radio waves in different main radiation directions.
- each of the plurality of antenna devices is configured by a print pattern on a printed board, and A wireless relay device in which the respective power supply units of the antenna device are directly connected by a connector for connecting the printed circuit boards.
- a plurality of antenna devices are respectively held by the printed circuit board, and the printed circuit boards are electrically connected by the connector. It has the effect of
- the invention according to claim 11 of the present invention is a wireless relay device in which a plurality of antenna devices are arranged in different indoor spaces, and respective feeding units of the plurality of antenna devices are connected by a cable, By transmitting a radio wave received by an antenna device arranged in an indoor space from an antenna device arranged in another indoor space, it has an effect of relaying the electric wave to a different indoor space.
- the invention according to claim 12 of the present invention is a wireless relay device in which a plurality of antenna devices are buried in different indoor walls, and respective feeders of the plurality of antenna devices are connected by a cable, By transmitting a radio wave received by an antenna device buried in a wall in a certain room from an antenna device buried in a wall in another room, the radio wave is relayed to a different indoor space.
- the invention described in claim 13 of the present invention is the invention according to any one of claims 9 to 12, wherein a space between respective feeding units of the plurality of antenna devices is provided.
- This is a wireless relay apparatus having two relay systems connected to an amplifier, one for uplink and one for downlink, and has an effect of amplifying an electric signal in each of the relay systems for uplink and downlink.
- the invention according to claim 14 of the present invention is the invention according to any one of claims 9 to 12, wherein a space between respective feeding portions of the plurality of antenna devices is provided.
- This is a wireless relay device that connects a bidirectional relay system having a circuit and an amplifier.
- the upstream and downstream signals are temporally separated by a circulator, and the upstream and downstream signals are individually amplified by an amplifier. It has the effect of doing.
- the invention according to claim 15 of the present invention is the invention according to any one of claims 9 to 12, wherein the power supply unit is provided between each of the plurality of antenna devices.
- This is a wireless relay device that connects a bidirectional relay system with an antenna duplexer and an amplifier.
- the antenna duplexer separates the uplink and downlink signals in frequency, and the amplifier amplifies the uplink and downlink signals individually. Has an action.
- FIG. 1 shows the antenna device of the first embodiment
- FIG. 2 shows the current distribution of the antenna device of the first embodiment.
- 3 and 4 show examples of a conventional antenna device, respectively.
- FIG. 5 to 11 show antenna devices according to the second to eighth embodiments, respectively.
- FIG. 12 shows a wireless device according to the ninth embodiment.
- FIG. 13 shows a wireless relay device according to the tenth embodiment.
- FIG. 14 shows a wireless system using the wireless relay device of the tenth embodiment.
- FIGS. 15 to 21 show wireless relay apparatuses according to the first to seventeenth embodiments, respectively.
- a pair of open-ended rhombic antennas is arranged at both ends, and the central half-wavelength portion of each of the two one-wavelength antenna elements is moved with respect to a straight line orthogonal to the antenna element.
- Four one-wavelength loop antennas symmetrically bent at three locations are connected, both ends of which are connected to the pair of rhombic antennas, and a common power supply unit is provided.
- the antenna device includes antenna elements 1 to 12 and a feed unit 13.
- the antenna elements 1 to 12 are composed of a conductor having a length of one wavelength, and are bent at an angle at the center.
- the angle is generally set to 30 to 150 degrees, but in the present embodiment, the case where the angle is set to 90 degrees will be described.
- the pair of antenna elements 1 and 2 and the pair of antenna elements 3 and 4 are arranged in a rhombus so as to face each other as shown in FIG.
- a pair of antenna elements 5 and 6 are connected to one end (right end in the figure) of the antenna elements 1 and 2, and the other end is electrically open.
- a pair of antenna elements 7 and 8 are connected to one end (left end in the figure) of the antenna elements 3 and 4, and the other end is electrically open.
- a pair of antenna elements 9 and 10 are connected to the ends of the antenna elements 5 and 6 opposite to the connection ends with the antenna elements 1 and 2, and the antenna elements 7 and 8 are connected to the antenna elements 3 and 4.
- a pair of antenna elements 11 and 12 are connected to the end opposite to the end.
- a feed section 13 is provided at a connection point between the antenna elements 9 and 10 and the antenna elements 11 and 12.
- Antenna elements 5 to: 12 are bent and bent at three places to be opposed to each other.
- the length a of one side of the rhombus of the pair of antenna elements 1 and 2 and the pair of antenna elements 3 and 4 is set to a half wavelength (input / 2).
- the length b of one side of the antenna elements 5 to 12 is set to a quarter wavelength (person / 4).
- the length of the antenna elements 1 to 4 is about 158 nm
- the length a of one side of the diamond is 79 mm.
- the length of antenna elements 5 to 12 is about 158 min, and the length b of one side is 39.5 nirn.
- the total width of the antenna device is 762mm.
- the antenna elements 1 and 2 constitute one rhombic antenna, operate as a four-sided half-wavelength antenna, and transmit radio waves whose main polarization direction is the Z direction in the X direction and the X direction.
- the antenna elements 3 and 4 perform the same operation.
- antenna elements 5 and 6 operate as a one-wavelength loop antenna, radiate radio waves whose main polarization direction is Z direction in X direction and one X direction, and antenna elements 7 and 8 and antenna elements 9 and 10 and antenna The same operation is performed for the elements 11 and 12.
- the main polarization direction is the vertical (Z) direction.
- the antenna device shown in FIG. 1 can be arranged by rotating it by 90 degrees, and the main polarization direction can be the horizontal (Y) direction. The same operation is performed as a horizontal polarization antenna.
- an antenna device having a high gain can be realized with a simple planar configuration.
- a pair of open-ended rhombic antennas is arranged at both ends, and a central half-wavelength portion of each of the two one-wavelength antenna elements is bent into a semi-circular shape.
- Four loop antennas were connected, both ends of which were connected to the pair of rhombic antennas, and a common feeder was provided.
- the antenna device according to the second embodiment has antenna elements 1 and 2 as shown in FIG. And antenna elements 26 to 33.
- components having the same reference numerals as those in FIG. 1 have the same configuration and perform the same operations.
- the antenna elements 26 to 33 are composed of a conductor having a length of one wavelength, and the length c is curved into a semicircle with a half wavelength at the center, and the length b of the straight part is a quarter wavelength Is set to. Then, the antenna elements 26 and 27, the antenna elements 28 and 29, the antenna elements 30 and 31, and the antenna elements 32 and 33 are arranged to face each other in pairs. A feed section 13 is provided at a connection point between the antenna elements 30 and 31 and the antenna elements 32 and 33. By connecting in this way, antenna elements 26 and 27 constitute a single-wavelength loop antenna, and antenna elements 28 and 29, antenna elements 30 and 31, and antenna elements 32 and 33 each also constitute a single-wavelength loop antenna. I do.
- the antenna elements 26 to 33 perform the same operation as the antenna elements 5 to 12 in FIG. — Strong radiation is obtained with the main polarization direction in the X direction and the Z direction.
- the antenna device shown in FIG. 5 is, like the antenna device shown in FIG. 1, to improve the current distribution of the central antenna element, which is a problem in the conventional antenna device in which a plurality of rhombic antennas shown in FIG. 3 are arranged. Can be.
- a gain of about 12.5 dBi is obtained in the X direction and the ⁇ X direction, and a gain 1 dB higher than that of the antenna device shown in FIG. 3 is obtained.
- an antenna device having a high gain can be realized with a simple planar configuration.
- the antenna according to the first embodiment is formed on a printed circuit board, and a reflector is fixed at a position at a fixed distance from the back surface of the printed circuit board.
- the antenna device includes a dielectric substrate 34, an antenna pattern 35, a feeder 36, a support column 37, and a reflector 38.
- the dielectric board 34 is a printed board made of, for example, a glass epoxy board, and the antenna pattern 35 is made up of a printed pattern formed on the dielectric board 34.
- the antenna pattern 35 corresponds to the antenna elements 1 to 12 in the antenna device shown in FIG. It is formed in the same shape.
- the power supply section 36 is arranged at the center of the antenna pattern 35.
- the dielectric substrate 34 is fixed to the reflection plate 38 by the support columns 37 at an interval d.
- the dielectric substrate 34 and the reflector 38 are arranged parallel to the YZ plane.
- the reflection plate 38 is made of a metal plate having substantially the same dimensions as the dielectric substrate, and operates so as to concentrate radiation from the antenna device in the X direction.
- the support pillar 37 is made of, for example, a nonmetallic material such as a resin and does not affect the operation of the antenna device.
- the spacing d is set to about 0.3 wavelength. When the operating frequency is 1900MHz, the total width of the dielectric substrate is 800mm and the distance d is about 47mm.
- the antenna pattern 35 when the high frequency signal of the operating frequency is excited from the feeding unit 36, the antenna pattern 35 performs the same operation as the antenna device of the first embodiment shown in FIG.
- the radiation is concentrated in the X direction by the reflector 38.
- a gain of about 16.5 dBi is obtained in the X direction.
- the antenna element is configured by a printed pattern on the dielectric substrate, the structure for holding the antenna element is simplified, and productivity is improved.
- an antenna device having a high gain can be realized with a simple planar configuration.
- a plurality of antennas according to the first embodiment are formed on a printed circuit board so that the main radiation direction and the main polarization direction are aligned with each other, and a certain distance from the rear surface of the printed circuit board. Fix the reflector at the position.
- the antenna device includes a dielectric substrate 39, two antenna patterns 40 and 41, a first power supply pattern 42, a second power supply pattern 43, and a power supply unit 44. And a support column 45 and a reflector 46.
- the dielectric board 39 is a printed board made of, for example, a glass epoxy board, and is arranged in parallel to the YZ plane.
- the antenna patterns 40 and 41 are composed of printed patterns formed on the dielectric substrate 39.
- the antenna patterns 40 and 41 are formed in the same shape as the antenna elements 1 to 12 in the antenna device shown in FIG.
- the antenna patterns 40 and 41 are arranged in parallel so that their main radiation directions are unified in the X direction and one X direction, and their main polarization directions are unified in the Z direction. Also, between antenna patterns 40 and 41 The distance e is set to about 0.8 wavelength.
- the first power supply pattern 42 is formed in a printed pattern on the surface of the dielectric substrate 39 so as to connect one side of the power supply portions of the antenna patterns 40 and 41.
- the second power supply pattern 43 is formed in a printed pattern on the back surface of the dielectric substrate 39 so as to connect the other side of the power supply section of the antenna patterns 40 and 41.
- the power supply unit 44 is connected between the first power supply pattern 42 and the second power supply pattern 43.
- the dielectric substrate 39 is fixed to the reflection plate 46 by the support columns 45 with an interval d.
- the reflection plate 46 is made of a metal plate having substantially the same dimensions as the dielectric substrate, and operates so as to concentrate the radiation from the antenna device in the X direction.
- the support column 45 is made of, for example, resin and does not affect the operation of the antenna device.
- the spacing d is set to about 0.3 wavelength. When the operating frequency is 1900 MHz, the entire width of the dielectric substrate 39 is 800 mm, and the interval d is about 47 mm.
- the antenna patterns 40 and 41 when the high frequency signal of the operating frequency is excited from the feed unit 44, the antenna patterns 40 and 41 perform the same operation as the antenna device of the first embodiment shown in FIG.
- the radiation is concentrated by the reflector 46 in the X direction.
- a gain of about 19.5 dBi can be obtained.
- the power supply patterns 42 and 43 for distributing and supplying power to the antenna patterns 40 and 41 which are two antenna systems, use the printed patterns on the front and back of the dielectric substrate 39, the structure is simplified and the productivity is improved.
- an antenna device having a high gain can be realized with a simple planar configuration.
- a plurality of rhombic antennas are arranged so that the main polarization direction is the same at intervals of an integral multiple of half a wavelength in the vertical direction with respect to the rhombic surface.
- the tip of the antenna system to which the plurality of rhombic antennas are connected is opened, and a feeder is provided at the other end, and further reflected back at a certain interval in the vertical direction with respect to the rhomboid surface of the rhomboid antenna having the feeder Place the board.
- the antenna device includes antenna elements 47 to 50, transmission lines 51 and 52, a power supply unit 53, and a reflector 54.
- -Elements 47 to 50 consist of a conductor with a length of one wavelength, with an angle It is bent at. Generally, the angle is set to about 30 to 150 degrees, but in the present embodiment, the case where the angle is set to 90 degrees will be described.
- the antenna elements 47 and 48 and the antenna elements 49 and 50 are arranged opposite to a rhombus parallel to the YZ plane, respectively, as shown in FIG. 8, and the length a of one side of the rhombus is a half wavelength (human). / 2).
- Antenna elements 47 and 48 and antenna elements 49 and 50 constitute two rhombic antennas, and are parallel so that the main radiation direction is the same as the X direction and the main polarization direction is the Z direction. Is fixed at.
- the interval f is set to an integral multiple of half the wavelength.
- the antenna elements 47 and 48 and the antenna elements 49 and 50 are connected by transmission lines 51 and 52 having the same length as the interval f.
- the feeder 53 is connected to the ends of the antenna elements 49 and 50 facing the transmission lines 51 and 52, and the ends of the antenna elements 47 and 48 facing the transmission lines 51 and 52 are open. Further, a reflector 54 is arranged at a distance d from the antenna elements 49 and 50.
- the reflection plate 54 is made of, for example, a rectangular metal plate having one side of about 0.9 wavelength or more. The interval d is set to about 0.3 wavelength.
- the length of the antenna elements 47 to 50 is about 158 mm, and the length a of one side of the diamond is 79 mm.
- the interval f is an integral multiple of 79 mm, and the interval d is about 47 mm.
- the length of one side of the reflector is about 140 mm.
- the interval f is set to one wavelength (158 mm) in the antenna device configured as described above.
- the antenna elements 47 and 48 constitute a rhombic antenna, radiate radio waves whose main polarization direction is the Z direction in the X and -X directions, and the antenna elements 49 and 50 perform the same operation. Further, the antenna elements 47 and 48 and the antenna elements 49 and 50 are excited in the same phase.
- the radiation from each of the rhombic antennas reinforces each other in the X and -X directions, and the radiation is concentrated in the X direction by the reflector 54, resulting in a high gain in the X direction. Is obtained. In the antenna device shown in FIG. 8, a gain of about 13.5 dBi can be obtained.
- the interval f is described as 1 wavelength or 1/2 wavelength, but the same operation is performed when the interval f is an integral multiple of 1/2 wavelength.
- an antenna device having a high gain can be realized with a simple configuration.
- a plurality of the antenna devices according to the fifth embodiment are arranged in a direction parallel to the diamond-shaped surface, and power is supplied in parallel.
- the antenna device includes antenna elements 47 to 50, transmission lines 51 and 52, a feeding unit 53, antenna elements 55 to 58, and transmission lines 59 and 60. And a reflecting plate 61.
- components denoted by the same reference numerals as those in FIG. 8 have the same configuration and perform the same operations.
- the antenna elements 55 to 58 and the transmission lines 59 and 60 are configured as the same antenna system as the antenna elements 47 to 50 and the transmission lines 51 and 52, respectively, and are arranged symmetrically with respect to the XZ plane.
- a feeding unit 53 is connected in parallel to the antenna elements 49 and 50 and the antenna elements 57 and 58, and feeds power.
- a reflector 61 is arranged at a distance d from the antenna elements 49 and 50.
- the antenna elements 47 to 50 and the transmission lines 51 and 52 are excited. Performs the same operation as the antenna device in FIG. 8, and a high gain is obtained in the X direction. Further, the antenna elements 55 to 58 and the transmission lines 59 and 60 perform the same operation, and a high gain is obtained in the X direction. Furthermore, since the two antenna systems are excited in phase, their emission reinforces each other in the X direction. In the antenna device shown in FIG. 9, a gain of about 15.5 dBi can be obtained. Thus, in the antenna device according to the sixth embodiment, the antenna having a high gain The device can be realized with a simple configuration.
- the plurality of rhombic antennas according to the fifth embodiment are formed on a printed circuit board, and the printed circuit boards are connected by parallel transmission lines.
- the antenna device according to the seventh embodiment includes dielectric substrates 62 and 63, antenna patterns 64 and 65, a transmission line 66, a reflector 67, and support columns 68 and 69. It has.
- the dielectric boards 62 and 63 are, for example, printed boards made of a glass epoxy board, and the antenna patterns 64 and 65 are made of printed patterns formed on the dielectric boards 62 and 63, respectively.
- the antenna panels 64 and 65 are formed in the same shape as the antenna elements 47 and 48 and the antenna elements 49 and 50 in the antenna device shown in FIG.
- the dielectric substrates 62 and 63 are fixed at intervals f by support columns 68, and the dielectric substrate 63 and the reflector 67 are fixed at intervals d by support columns 69. Then, the dielectric substrates 62 and 63 and the reflection plate 67 are arranged in parallel to the YZ plane.
- the reflection plate 67 is made of a metal plate having substantially the same dimensions as the dielectric substrates 62 and 63, and operates to concentrate radiation from the antenna device in the X direction.
- the transmission line 66 for example, a parallel transmission line having a length f is used, and the antenna patterns 64 and 65 are electrically connected.
- the support columns 68 and 69 are made of, for example, a nonmetallic material such as a resin, and do not affect the operation of the antenna device.
- the interval d is set to about 0.3 wavelength, and the interval f is set to an integral multiple of half the wavelength.
- the interval d becomes an integral multiple of 79 mm, and the interval d becomes about 47 mm.
- the antenna patterns 64 and 65, the transmission line 66, and the reflector 67 are transmitted to the antenna elements 47 to 50 in FIG.
- the same operation as the lines 51 and 52 and the reflector 54 is performed, and a high gain is obtained in the X direction.
- a gain of about 13.5 dBi can be obtained.
- the antenna element is composed of a printed pattern on a dielectric substrate, the structure for holding the antenna element is simplified and productivity is improved. Is improved.
- an antenna device having a high gain can be realized with a simple configuration.
- the plurality of rhombic antennas according to the fifth embodiment are formed on a printed circuit board, and the printed circuit boards are connected by a relay board.
- the antenna device according to the eighth embodiment includes dielectric substrates 62 and 63, antenna patterns 64 and 65, reflectors 67, support columns 68 and 69, and a relay substrate 71. , A transmission line 72, and board connectors 73 and 74.
- components denoted by the same reference numerals as those in FIG. 10 have the same configuration and perform the same operations.
- the relay board 71 is a printed board formed of, for example, a glass epoxy board, and the transmission line 72 is formed of a printed pattern formed on the relay board.
- the board connection connectors 73 and 74 electrically connect the patterns on the two boards and mechanically fix the two boards.
- the length of the relay board 71 is set to be equal to the distance f between the dielectric boards 62 and 63, and fixes the dielectric boards 62 and 63 together with the support columns 68.
- the antenna pattern 64 is connected to a terminal of the board connector 73, and the board connector 73 is also connected to the transmission line 72.
- the antenna pattern 65 is connected to a terminal of the board connector 74, and the board connector 74 is also connected to the transmission line 72. Therefore, the antenna patterns 64 and 65 are electrically connected via the transmission line 72 on the relay board 71.
- the antenna device When the antenna device configured as described above is excited by the high frequency signal of the operating frequency from the feeder 70, the antenna device performs the same operation as the antenna device in FIG. 10 and obtains a high gain in the X direction. Can be In the antenna device shown in FIG. 11, a gain of about 13.5 dBi can be obtained. Also, since the transmission line connecting the antenna patterns is realized by a printed pattern on the relay board, the structure is simplified and the productivity is improved.
- an antenna having a high gain can be realized with a simple configuration.
- the radio apparatus includes the antenna according to the first embodiment formed on a printed circuit board, a radio circuit section fixed at a position at a fixed distance from the back of the printed circuit board, and a radio circuit section. Is also used as a reflector.
- the wireless device includes a dielectric substrate 34, an antenna pattern 35, a wireless circuit unit 75, a power supply cable 76, and a support column 77.
- those denoted by the same reference numerals as those in FIG. 6 have the same configuration and perform the same operation.
- the wireless circuit unit 75 is a shield case that houses, for example, a transmission / reception circuit of the wireless device.
- the power supply cable 76 is a high-frequency cable that connects the antenna pattern 35 and the transmission / reception circuit in the wireless circuit section 75.
- the support column 77 fixes the dielectric substrate 34 and the wireless circuit section 75 with a distance d.
- the interval d is set to about 0.3 wavelength.
- the shield case of the wireless circuit unit 75 performs the same function as the reflector 38 in FIG.
- the antenna pattern 35 operates together with the wireless circuit unit 75 as a high-gain antenna having directivity in the X direction.
- a gain of about 16.5 dBi is obtained in the X direction.
- the structure is simplified because the reflection plate is constituted by the shield case of the wireless circuit section 75.
- the wireless device according to the present embodiment having a built-in antenna device having a high gain is used as a fixed terminal, and the main radiation direction of the antenna is fixed toward the radio base station, thereby compensating for the transmission loss of the radio system. And, as a result, the coverage of the wireless system can be expanded.
- a wireless device including an antenna device having a high gain can be realized with a simple configuration. Further, in the wireless system using the wireless device according to the ninth embodiment, a wide range of cannoniers can be realized.
- a plurality of planar antenna devices are arranged in the same housing with their main radiation directions directed in different directions, and those of the plurality of antenna devices are arranged. Its feeder is electrically connected.
- the wireless relay device includes planar antennas 78 and 79, a high-frequency cable 80, and a housing 81.
- the planar antennas 78 and 79 are high-gain planar antennas such as patch array antennas, and are arranged inside the housing 81 with their main radiation directions in the X and Y directions.
- the feed points of the planar antennas 78 and 79 are directly connected by a high-frequency cable 80.
- the planar antennas 78 and 79 have a gain of about 15 dBi.
- the length of the high-frequency cable 80 is set to be within several tens of cm to about 1 m, and the transmission loss at 1900 MHz is suppressed to within about _ldB.
- radio waves arriving from the X direction are mainly received by the planar antenna 78, excite the planar antenna 79 via the high-frequency cable 80, and emit radio waves in the Y direction.
- radio waves arriving from the X direction are mainly received by the planar antenna 78, excite the planar antenna 79 via the high-frequency cable 80, and emit radio waves in the Y direction.
- FIG. 14 shows a configuration example when the wireless relay apparatus shown in FIG. 13 is used indoors as a relay apparatus of a wireless system such as a PHS, for example.
- the wireless relay device 82 is installed on an indoor wall surface 85.
- the wireless relay device 82 has the same configuration and performs the same operation as the wireless relay device shown in FIG.
- Each of the wireless devices 83 and 84 is a terminal or a base station installed in a room partitioned by a partition 86 having high electromagnetic shielding performance.
- an omnidirectional antenna having a gain of about 2 dBi or less is generally used.
- the transmission loss L in free space during the distance D is given by
- the total transmission loss L12 from the wireless device 83 to the wireless device 84 via the wireless relay device 82 is given by G1 and G2, the gain of the planar antennas 78 and 79 of the wireless relay device 82, and Lf the high-frequency cable loss.
- L12 L1 + L2 + Gl + G2 + Lf (dB) (2)
- the shape of the wireless relay device and the type of antenna are not limited to those described in this embodiment.
- the configuration of the wireless system is not limited to the description of the present embodiment. Similar effects can be obtained by directly connecting high-gain antennas and arranging them so as to improve the transmission loss of the wireless system. .
- a wireless relay device installed indoors can be realized with a simple configuration.
- a wide coverage area can be realized.
- the antenna devices according to the third embodiment are arranged integrally with their main radiation directions directed in different directions, and each of the plurality of antenna devices is The power supply is electrically connected with a high-frequency cable.
- the wireless relay device includes dielectric substrates 87 and 88, antenna patterns 89 and 90, a reflector 91, a support pole 92, and a high-frequency cable. Bull 93.
- the dielectric substrate 87 and the antenna pattern 89 and the dielectric substrate 88 and the antenna pattern 90 perform the same operation as the dielectric substrate 34 and the antenna pattern 35 in FIG. 6, respectively, and constitute two antenna systems.
- the reflecting plate 91 is formed by bending a single metal plate at the center, and is fixed to the dielectric substrates 87 and 88 by the supporting columns 92 at an interval d.
- the dielectric substrate 87 and the antenna pattern 89 are arranged in the X direction, and the dielectric substrate 88 and the antenna pattern 90 are arranged in the Y direction.
- the high-frequency cable 93 is
- the reflector 91 is connected between the power supply of the antenna 89 and the power supply of the antenna panel 90 through the reflector 91.
- the support column 92 is made of a nonmetallic material such as a resin, for example, and does not affect the operation of the antenna device.
- the spacing d is set to about 0.3 wavelength.
- the operating frequency is 1900 MHz
- the total width of the dielectric substrates 87 and 88 is 800 mm
- the distance d is about 47 mm.
- the gain in the X direction by the antenna pattern 89 and the gain in the Y direction by the antenna pattern 90 are about 16.5 dBi, respectively.
- radio waves arriving from the X direction are mainly received by the antenna pattern 89, excite the antenna panel 90 via the high-frequency cable 93, and radiate the radio waves in the Y direction.
- the wireless relay device shown in FIG. Transmission loss can be improved by 10dB.
- the antenna element is configured by a printed pattern on the dielectric substrate, the structure for holding the antenna element is simplified, and productivity is improved.
- a wireless relay device installed indoors can be realized with a simple configuration.
- a wide coverage area can be realized.
- the antenna devices of the third embodiment are arranged integrally with their main radiation directions in different directions, and each of the plurality of antenna devices is
- the power supply unit is electrically and mechanically connected by a board connection connector.
- the wireless relay device includes dielectric substrates 94 and 95, antenna patterns 96 and 97, a board connector 98, a reflector 99, The support column 100 is provided.
- the dielectric substrate 94 and the antenna pattern 96 and the dielectric substrate 95 and the antenna pattern 97 perform the same operation as the dielectric substrate 34 and the antenna pattern 35 in FIG. 6, respectively, and constitute two horizontally polarized antenna systems.
- the reflecting plate 99 is formed by bending a single metal plate at the center, and is fixed to the dielectric substrates 94 and 95 by the supporting columns 100 at a distance d.
- the dielectric substrate 94 and the antenna pattern 96 are arranged in the X direction, and the dielectric substrate 95 and the antenna pattern 97 are arranged in the Y direction.
- the power supply of the antenna pattern 96 and the power supply of the antenna panel 97 are connected to each other via the printed pattern on the dielectric substrates 94 and 95 and the substrate connector 98.
- the board connector 98 also mechanically fixes between the dielectric boards 94 and 95.
- the support column 100 is made of, for example, a nonmetallic material such as a resin, and does not affect the operation of the antenna device.
- the spacing d is set to about 0.3 wavelength. When the operating frequency is 1900MHz, the interval is about 47mm.
- the gain in the X direction by the antenna pattern 96 and the gain in the Y direction by the antenna pattern 97 are about 16.5 dBi, respectively.
- the radio wave arriving from the X direction is mainly received by the antenna pattern 96, excites the antenna panel 97 via the board connector 98, and transmits the radio wave in the Y direction. Operate to radiate.
- the wireless relay device shown in FIG. 16 is used indoors as the wireless relay device 82 of the wireless system such as the PHS shown in FIG. 14, the wireless relay device 83 transmits the wireless relay device 82 via the wireless relay device 82.
- the connection between antennas is realized by a board connection connector, the installation of high-frequency cables is not required, the structure is simplified, and productivity is improved.
- the wireless relay device can realize a wireless relay device installed indoors with a simple configuration. Further, in a wireless system using the wireless relay device of the first and second embodiments, a wide canopy can be realized.
- the wireless relay device in the wireless relay device according to the thirteenth embodiment, a plurality of antenna devices are arranged in different indoor spaces, and respective feeders of the plurality of antenna devices are connected by cables. As shown in FIG. 17, the wireless relay device of the thirteenth embodiment includes antenna devices 101 and 102 and a high-frequency cable 103.
- the devices 101 and 102 are unidirectional high-gain devices as shown in FIGS. 6 to 11, and are installed in the indoor spaces 107 and 108, for example, on the ceiling.
- the power supply sections of the antenna devices 101 and 102 are connected through the building by a high-frequency cable 103.
- a high-frequency cable 103 a low-loss cable is used.
- a wireless terminal 106 is installed in the indoor space 107.
- a wireless base station 104 and a wireless terminal 105 are installed in the indoor space 108.
- the wireless base station 104 and the wireless terminal 105 are connected to each other to perform wireless communication, and the wireless base station 104 and the wireless terminal 106 also perform wireless communication in the same manner.
- the radio wave transmitted from the radio base station 104 is mainly received by the antenna apparatus 102, excites the antenna apparatus 101 via the high-frequency cable 103, and transmits the radio wave to the wireless terminal 106. It operates to emit light.
- a radio wave transmitted from the wireless terminal 106 is received by the wireless base station 104 via the antenna device 101, the high-frequency cable 103, and the antenna device 102.
- the transmission loss from the wireless base station 104 to the wireless terminal 106 can be improved by 12 dB by installing a wireless relay device consisting of the antenna device 101, the high-frequency cable 103, and the antenna device 102.
- the shape of the indoor space and the mounting position of the antenna device are not limited to the description of the present embodiment, and a high-gain antenna arranged in a different indoor space is directly connected by a cable to improve the transmission loss of the wireless system. The same effect can be obtained by arranging them in such a manner.
- a wireless relay device installed indoors can be realized with a simple configuration.
- a wide coverage can be realized.
- the wireless relay device includes antenna devices 109 and 110 and a high-frequency cable 111, as shown in FIG.
- the antenna devices 109 and 110 are unidirectional high-gain antenna devices as shown in FIGS. 6 to 11, and are embedded in walls in the indoor spaces 114 and 115.
- the power supply sections of the antenna devices 109 and 110 are connected through the building by a high-frequency cable 111.
- a high-frequency cable 111 a low-loss cable is used.
- the transmission loss Lf in the high-frequency cable 111 is about ⁇ 5 (dB).
- a wireless base station 112 is installed in the indoor space 114.
- a wireless terminal 113 is installed in the indoor space 115. The wireless base station 112 and the wireless terminal 113 are connected to each other to perform wireless communication.
- the radio wave transmitted from the radio base station 112 is mainly received by the antenna apparatus 110, excites the antenna apparatus 109 via the high-frequency cable 111, and transmits the radio wave to the wireless terminal 113. It operates to emit light.
- a radio wave transmitted from the wireless terminal 113 is received by the wireless base station 112 via the antenna device 109, the high-frequency cable 111, and the antenna device 110.
- the transmission loss between the radio base station 112 and the radio terminal 113 can be improved by the same operation as the radio relay apparatus shown in FIG. .
- the antenna device 109 and the antenna device 110 are buried in the indoor wall, there is a protrusion in the indoor space. Since there are few parts to do, there is no interference with indoor things, so there are few failures, and it is also preferable in terms of landscape.
- a wireless relay device having high relay performance installed indoors can be realized with a simple configuration.
- a wide coverage area can be realized.
- two relay systems in which an amplifier is connected between the feed units of the plurality of antenna devices, are provided, an uplink line and a downlink line.
- the wireless relay device of the fifteenth embodiment includes antenna devices 116 to 119, bandpass filters 120 and 121, and low-noise amplifiers 122 and 123.
- the antenna devices 116 to 119 are unidirectional high-gain antenna devices as shown in FIGS. 6 to 11, and are similar to wireless relay devices as shown in FIGS. It is arranged to improve the loss.
- the signal received by the antenna device 116 is input to the low-noise amplifier 122 via the band-pass filter 120, and is radiated from the antenna device 118 after being amplified.
- the signal received by the antenna device 119 is input to the low-noise amplifier 123 via the band-pass filter 121, amplified, and radiated from the antenna devices 1-7.
- the wireless relay device configured as described above is used for a wireless system of a frequency division duplex (FDD) system.
- FDD frequency division duplex
- the wireless relay device of the present embodiment includes a relay system for the uplink frequency band and a relay system for the downlink frequency band.
- the antenna devices 116 and 118 are, for example, antenna devices corresponding to the upper frequency band, and the bandpass filter 120 and the low noise amplifier 122 also correspond to the upper frequency band. Further, the antenna devices 117 and 119, the bandpass filter 121, and the low-noise amplifier 123 correspond to the downlink frequency band.
- the wireless relay device shown in FIG. 19 becomes an antenna like the wireless relay device shown in FIGS.
- the effect of improving transmission loss can be increased by 20 dB compared to the case where devices are directly connected.
- the antenna device of the fifteenth embodiment it is possible to realize a wireless relay device having high relay performance installed indoors in a frequency division two-way communication (FDD) wireless system with a simple configuration. Can be.
- FDD frequency division two-way communication
- a wide coverage can be realized.
- a bidirectional relay system having a circulator and an amplifier is connected between feeders of a plurality of antenna devices.
- the wireless relay device includes antenna devices 124 and 125, circulators 126 and 127, and low-noise amplifiers 128 and 129.
- the devices 124 and 125 are unidirectional high-gain devices as shown in FIGS. 6 to 11, and the transmission loss of the wireless system is similar to the wireless relay device as shown in FIGS. 13 to 18. Is arranged to improve.
- the signal received by the antenna device 124 is input to the low-noise amplifier 128 via the circuit 126, amplified, and radiated from the antenna device 125 via the circular device 127.
- the signal received by the antenna device 125 is input to the low-noise amplifier 129 via the circulating device 127, and after being amplified, is radiated from the antenna device 124 via the sacrificing device 126.
- the wireless relay device configured as described above is used for a time division two-way communication (TDD) wireless system.
- TDD time division two-way communication
- the same frequency band is shared between the uplink and the downlink, and the uplink and downlink are separated by time-divided sections. Therefore, the wireless relay device according to the present embodiment has two relay systems having the same frequency band, and realizes bidirectional characteristics by means of synchronization.
- the wireless relay device shown in Fig. It is possible to improve the transmission loss improvement effect by 18 dB compared to a direct connection between antenna devices such as a wireless relay device.
- the bidirectional characteristics are realized by synchronization. For example, the same effect can be obtained by using a high-frequency switch synchronized with the transmission / reception switching time in the TDD system.
- the antenna apparatus according to the sixteenth embodiment can realize a wireless relay apparatus having high relay performance installed indoors in a time division two-way communication (TDD) wireless system with a simple configuration. Can be.
- TDD time division two-way communication
- a wide coverage area can be realized.
- a bidirectional relay system having an antenna duplexer and an amplifier is connected between feeders of a plurality of antenna devices.
- the wireless relay device includes antenna devices 130 and 131, antenna duplexers 132 and 133, and low noise amplifiers 134 and 135.
- the antenna devices 130 and 131 are unidirectional high-gain antenna devices as shown in FIGS. 6 to 11, and are similar to the radio relay devices as shown in FIGS. It is arranged to improve the loss.
- the signal received by the antenna device 130 is input to the low-noise amplifier 134 via the antenna duplexer 132, and after being amplified, is radiated from the antenna device 131 via the antenna duplexer 133.
- the signal received by the antenna device 131 is input to the low-noise amplifier 135 via the antenna duplexer 133, and after being amplified, is radiated from the antenna device 130 via the antenna duplexer 132.
- the wireless relay device configured as described above is used for a frequency division two-way communication (FDD) wireless system.
- the radio relay apparatus shown in FIG. 19 includes a relay system for the uplink frequency band and a relay system for the downlink frequency band.
- the radio relay apparatus of the present embodiment shown in FIG. Using 132 and 133, the antenna device is shared in the uplink and downlink frequency bands.
- the antenna devices 130 and 131 support both the uplink frequency band and the downlink frequency band.
- the low-noise amplifier 134 corresponds to, for example, an upstream frequency band
- the low-noise amplifier 135 corresponds to a downstream frequency band.
- the antenna duplexer 132 connects the input and output of the antenna device 130 to the low-noise amplifier 134 in the upstream frequency band, and connects to the low-noise amplifier 135 in the downstream frequency band. Works to connect to.
- the antenna duplexer 133 operates to connect the input and output of the antenna device 131 to the low-noise amplifier 134 in the upstream frequency band and to the low-noise amplifier 135 in the downstream frequency band.
- the wireless relay device shown in Fig. 21 will be the wireless relay device shown in Figs. It is possible to improve the transmission loss improvement effect by 18 dB compared to a device in which the antenna devices are directly connected like a device. Thus, the number of antennas can be reduced to two by preparing the wideband antenna devices 130 and 131 and the duplexers 132 and 133.
- the number of antenna devices for a radio relay device with high relay performance installed indoors in a frequency division two-way communication (FDD) wireless system is reduced to two. It can be realized with a simple configuration.
- a wide coverage area can be realized.
- each of the two one-wavelength antenna elements is bent at the center so as to face each other to form a rhombus, one end of which is open, and the connection end at the other end.
- the first and second antenna elements provided with are arranged at both ends, and the central half-wavelength part of each of the two one-wavelength antenna elements is bent symmetrically with respect to a straight line orthogonal to the antenna element. Since the third antenna is arranged in the center and both ends are connected to the first and second antennas and a common feeder is provided, an antenna device having high gain can be realized with a simple planar configuration. be able to.
- the antenna device includes a plurality of antennas each formed by bending each of the two one-wavelength antenna elements at the center and facing each other to form a rhombus, a transmission line, and a reflector.
- the main polarization direction is arranged in the direction perpendicular to the rhombus at an interval of an integral multiple of half a wavelength so that the main polarization direction is the same, and multiple antennas are alternately tangled by transmission lines to connect multiple antennas.
- the tip of the antenna system is opened and a feeder is provided at the other end. Since the reflector is provided, an antenna device having high gain can be realized with a simple configuration.
- the wireless device includes a printed circuit board on which an antenna is formed by a printed pattern, and a wireless circuit unit, wherein the printed circuit board and the wireless circuit unit are fixed at a fixed interval, and a housing of the wireless circuit unit is a reflection member. Therefore, a wireless device including an antenna device having a high gain can be realized with a simple configuration.
- the plurality of antenna devices are arranged in the same housing with their main radiation directions directed in different directions, and the respective feeding units of the plurality of antenna devices are electrically connected.
- a wireless relay device installed indoors can be realized with a simple configuration.
- the wireless relay device since the plurality of antenna devices are arranged in different indoor spaces, and the power supply units of the plurality of antenna devices are connected by cables, the wireless relay device installed indoors has a simple configuration. Can be realized.
- the wireless relay device since the plurality of antenna devices are embedded in different indoor walls and the power supply units of the plurality of antenna devices are connected by cables, the wireless relay device installed in the house can be simplified. It can be realized with a simple configuration.
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Aerials With Secondary Devices (AREA)
- Transceivers (AREA)
- Radio Relay Systems (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99959894A EP1058340B1 (en) | 1998-12-25 | 1999-12-17 | Antenna, radio device and radio repeater |
AU16890/00A AU762442B2 (en) | 1998-12-25 | 1999-12-17 | Antenna, radio device and radio repeater |
US09/622,821 US6501436B1 (en) | 1998-12-25 | 1999-12-17 | Antenna apparatus and wireless apparatus and radio relaying apparatus using the same |
DE69936135T DE69936135T2 (de) | 1998-12-25 | 1999-12-17 | Antenne, funkgerät, funkrelais |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10/370990 | 1998-12-25 | ||
JP37099098A JP4067672B2 (ja) | 1998-12-25 | 1998-12-25 | アンテナ装置並びにそれを用いた無線装置及び無線中継装置 |
Publications (1)
Publication Number | Publication Date |
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WO2000039886A1 true WO2000039886A1 (fr) | 2000-07-06 |
Family
ID=18497948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP1999/007120 WO2000039886A1 (fr) | 1998-12-25 | 1999-12-17 | Antenne, dispositif radio et repetiteur radio |
Country Status (7)
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US (1) | US6501436B1 (ja) |
EP (1) | EP1058340B1 (ja) |
JP (1) | JP4067672B2 (ja) |
CN (1) | CN1178332C (ja) |
AU (1) | AU762442B2 (ja) |
DE (1) | DE69936135T2 (ja) |
WO (1) | WO2000039886A1 (ja) |
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JP2938280B2 (ja) | 1992-07-27 | 1999-08-23 | 株式会社東芝 | 文書作成装置及びモード設定制御方法 |
JPH06169216A (ja) | 1992-11-30 | 1994-06-14 | Nippon Sheet Glass Co Ltd | ダイバーシティ用双ループアンテナ |
JPH06188623A (ja) | 1992-12-16 | 1994-07-08 | Nec Eng Ltd | ゴースト対策双ループアンテナ |
JPH06268432A (ja) | 1993-03-10 | 1994-09-22 | Hisamatsu Nakano | 直線偏波用ループアンテナ |
JPH06334434A (ja) | 1993-05-26 | 1994-12-02 | Toyota Central Res & Dev Lab Inc | 平面アンテナ装置 |
JPH08139521A (ja) | 1994-11-07 | 1996-05-31 | Daiichi Denpa Kogyo Kk | ダイバーシチアンテナ装置 |
JP3246643B2 (ja) | 1995-01-25 | 2002-01-15 | 日本電信電話株式会社 | 双方向指向性プリント基板アンテナ |
US5541614A (en) * | 1995-04-04 | 1996-07-30 | Hughes Aircraft Company | Smart antenna system using microelectromechanically tunable dipole antennas and photonic bandgap materials |
JPH08298485A (ja) | 1995-04-26 | 1996-11-12 | Saitekusu:Kk | 無線中継装置 |
JP3444079B2 (ja) | 1996-02-20 | 2003-09-08 | 松下電器産業株式会社 | コリニアアレイアンテナ |
CA2172742C (en) * | 1996-03-27 | 1997-09-28 | James Stanley Podger | Double-delta log-periodic antenna |
US6181281B1 (en) * | 1998-11-25 | 2001-01-30 | Nec Corporation | Single- and dual-mode patch antennas |
CA2303703C (en) * | 2000-03-30 | 2001-09-04 | James Stanley Podger | The lemniscate antenna element |
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1998
- 1998-12-25 JP JP37099098A patent/JP4067672B2/ja not_active Expired - Fee Related
-
1999
- 1999-12-17 CN CNB998041297A patent/CN1178332C/zh not_active Expired - Fee Related
- 1999-12-17 AU AU16890/00A patent/AU762442B2/en not_active Ceased
- 1999-12-17 EP EP99959894A patent/EP1058340B1/en not_active Expired - Lifetime
- 1999-12-17 DE DE69936135T patent/DE69936135T2/de not_active Expired - Lifetime
- 1999-12-17 WO PCT/JP1999/007120 patent/WO2000039886A1/ja active IP Right Grant
- 1999-12-17 US US09/622,821 patent/US6501436B1/en not_active Expired - Fee Related
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See also references of EP1058340A4 * |
TSUNOI Y, ET AL.: "DYNAMIC HAM SERIES: ANTENNA HANDBOOK", DYNAMIC HAM SERIES: ANTENNA HANDBOOK, XX, XX, 28 February 1985 (1985-02-28), XX, pages 366, XP002929808 * |
Also Published As
Publication number | Publication date |
---|---|
AU1689000A (en) | 2000-07-31 |
DE69936135D1 (de) | 2007-07-05 |
EP1058340A4 (en) | 2005-03-16 |
CN1178332C (zh) | 2004-12-01 |
CN1293830A (zh) | 2001-05-02 |
JP2000196340A (ja) | 2000-07-14 |
EP1058340B1 (en) | 2007-05-23 |
US6501436B1 (en) | 2002-12-31 |
DE69936135T2 (de) | 2007-09-06 |
EP1058340A1 (en) | 2000-12-06 |
AU762442B2 (en) | 2003-06-26 |
JP4067672B2 (ja) | 2008-03-26 |
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