WO1999028989A1 - Dispositif antenne combine - Google Patents
Dispositif antenne combine Download PDFInfo
- Publication number
- WO1999028989A1 WO1999028989A1 PCT/JP1997/004427 JP9704427W WO9928989A1 WO 1999028989 A1 WO1999028989 A1 WO 1999028989A1 JP 9704427 W JP9704427 W JP 9704427W WO 9928989 A1 WO9928989 A1 WO 9928989A1
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- WO
- WIPO (PCT)
- Prior art keywords
- coaxial line
- helical
- connection terminal
- antenna
- outer conductor
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
- H01Q1/244—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas extendable from a housing along a given path
-
- 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
- H01Q11/08—Helical antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
- H01Q5/35—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using two or more simultaneously fed points
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
-
- 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
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
Definitions
- the present invention relates to a composite antenna device for transmitting and receiving different frequencies, and more particularly to a composite antenna device for enabling a plurality of mobile communication services having different frequency bands to be enjoyed by one portable terminal. It concerns equipment. Background art
- FIG. 1 shows an example of such a conventional antenna device for a portable terminal, which is disclosed in, for example, the B-73 of IEICE Autumn Conference, 1994.
- FIG. 3 is a perspective view showing a schematic structure of a composite antenna device called a double-frequency antenna with shared frequency.
- 1 is a housing of a portable terminal
- 2 is a first antenna attached to the housing 1
- 3 is a second antenna similarly.
- the first antenna 2 has a length h, which is about a half wavelength at a low frequency, and antenna 3 has a length of approximately half wavelength of a high frequency f 2 has it it.
- the first antenna 2 is used for communication at a low frequency: In the communication at the frequency f ;, the second antenna 3 is switched so as to be supplied with power.
- FIG. 4 is an explanatory diagram showing a radiation pattern in a vertical plane based on a result calculated using the moment method. As shown in Fig. 2, when the second antenna 3 is fed and the first antenna 2 is short-circuited, there is no significant effect, but as can be seen from Fig. 3, the first antenna 2 is fed. If the second antenna 3 is short-circuited, the radiation pattern is greatly deformed from the radiation pattern of a normal dipole antenna due to the influence of the second antenna 3.
- the radiation pattern is usually affected by the influence of the other antenna (the second antenna 3). Because the radiation pattern of the dipole antenna of this type can be greatly deformed, the gain in the horizontal direction decreases, and the communication partner is an antenna for mobile terminals that is used in random environments in all directions in the horizontal plane. There was a problem of being unsuitable.
- the two antennas 2 and 3 are provided in parallel, the occupied volume is large, and the portability of the mobile terminal is reduced.
- the present invention has been made in order to solve the above-mentioned problems.
- the respective antennas are arranged in a horizontal plane.
- the purpose is to realize a composite antenna device that can obtain a uniform gain and occupies a small volume.
- each antenna coaxially and making it movable, it can be stored inside the radio equipment housing when not in use, thereby improving the portability of the portable terminal. It is an object of the present invention to realize a composite antenna device capable of performing the above. Disclosure of the invention
- a composite antenna device as set forth in claim 1 is characterized in that a balun connected to an inner conductor is arranged at one end of a coaxial line, and one end of a helical element composed of a pair of linear conductors is provided. Is connected to the balun, and the other end is turned around the coaxial line so as to be symmetrical, turning around the coaxial line, facing the balun, and connecting to the outer conductor at the other end of the coaxial line. At the other end of the coaxial line, an inner conductor connection terminal connected to the inner conductor and an outer conductor connection terminal connected to the outer conductor are provided.
- a helical antenna fed by a coaxial line and an antenna device that combines a monopole antenna with an outer conductor of the coaxial line passing through the center are formed on the same axis, and a uniform gain in the horizontal plane is obtained. Therefore, the occupied volume can be reduced.
- a composite antenna device as set forth in claim 2 is a two-wire helical antenna which is constituted by one coaxial line and a pair of helical elements, and is fed by the coaxial line.
- the monopole antenna is formed on the same axis with the outer conductor of the coaxial line. This makes it possible to obtain a uniform antenna in a horizontal plane and to reduce the occupied volume with a simple configuration.
- the composite antenna device provides a composite antenna device in which a phase delay element is provided together with a balun at one end of one coaxial line, and one end of the first helical element is directly connected to the balun. Then, by connecting one end of the second helical element to a balun via a phase delay element, a 4-wire wound helical antenna fed from a coaxial line is formed.
- the same axis as the monopole antenna with the outer conductor of the coaxial line It is a composite of the above. This improves the symmetry of the radiation pattern and allows for a more uniform gain in the horizontal plane.
- a plurality of coaxial lines are bundled so that outer conductors are in contact with each other, and a balun is arranged at one end of each coaxial line.
- One end of the helical element is connected to each balun, and the other end of the helical element is connected to the outer conductor at the other end of the coaxial line to form a plurality of helical antennas
- these helical antennas and a monopole antenna with an outer conductor of a coaxial line are combined on the same axis. This makes it possible to coaxially configure antennas corresponding to a plurality of different services, to achieve uniform gain in the horizontal plane, and to reduce the occupied volume. Can be.
- a composite antenna device as set forth in claim 5, wherein a first balun and a first phase delay element are provided at one end of the first coaxial line, and one end of the second coaxial line is provided at the one end of the second coaxial line.
- a second balun and a second phase delay element are provided respectively, and one end of the two pairs of helical elements forming the first helical antenna is connected directly or via the first phase delay element.
- the composite antenna device according to the invention set forth in claim 6 is characterized in that: Sliding contacts insulated from each other around the rotation axis perpendicular to the axial direction are arranged at one end of the coaxial line, and they are connected to the inner conductor connection terminal connected to the inner conductor of the coaxial line.
- the outer conductor connecting terminal connected to the outer conductor can be improved.
- a composite antenna device as set forth in claim 7 is characterized in that an antenna device in which a helical antenna and a monopole antenna are combined is disposed so as to be retractable / extractable, and the coaxial line is electrically connected to the upper end thereof. Insulate and arrange the sub-antenna elements in series, connect one of the radio circuits to the connection terminal of the sub-antenna element when retracted, and disconnect the radio circuit connected to the connection terminal of the sub-antenna element when retracted when extracting. In the conductor connection terminal, another wireless circuit is connected between the outer conductor connection terminal and the inner conductor connection terminal.
- the composite antenna device can be housed inside the housing of the radio unit, thereby improving portability, and by feeding power to the sub-antenna element during storage, gain is secured. It is also possible to do so.
- the composite antenna device according to the invention of claim 8 uses a helical conductor obtained by winding a linear conductor in a helical shape as a sub-antenna element.
- the sub-antenna element operates as a helical monopole antenna, and gain during storage can be ensured.
- the composite antenna device according to the ninth aspect of the present invention uses a bent conductor obtained by zigzagging a linear conductor as a sub-antenna element.
- FIG. 3 is an explanatory diagram showing a radiation pattern in a vertical plane when a first antenna is fed and a second antenna is short-circuited in the conventional composite antenna device.
- FIG. 4 is a perspective view showing a schematic configuration of the composite antenna device according to Embodiment 1 of the present invention.
- FIG. 5 is a perspective view showing a schematic configuration of a composite antenna device according to Embodiment 2 of the present invention.
- FIG. 6 is a plan view schematically showing the connection between the helical element and the center conductor of the coaxial line in the second embodiment.
- FIG. 7 is a front view showing a schematic configuration of a composite antenna device according to Embodiment 3 of the present invention.
- FIG. 8 is a perspective view showing a schematic configuration of a portable terminal using the composite antenna device according to Embodiment 4 of the present invention.
- FIG. 9 is a perspective view showing a schematic configuration of a movable mounting portion of the antenna device according to the fourth embodiment.
- FIG. 10 is a perspective view showing a schematic configuration of a portable terminal using a composite antenna device according to Embodiment 5 of the present invention in an antenna pulled-out state.
- FIG. 11 is a perspective view showing a schematic configuration of the above-described fifth embodiment in an antenna housed state.
- FIG. 12 is a perspective view showing a schematic configuration of a portable terminal using a composite antenna device according to Embodiment 6 of the present invention in an antenna pulled-out state. It is.
- FIG. 13 is a perspective view showing a schematic configuration of the antenna according to the sixth embodiment in an accommodated state.
- FIG. 4 is a perspective view showing a schematic configuration of a composite antenna device according to Embodiment 1 of the present invention.
- FIG. 4 shows a monopole antenna having an outer conductor of a coaxial line and the coaxial line.
- 11 is the coaxial line
- 12 is the inner conductor of the coaxial line 11
- 13 is the outer conductor.
- Reference numeral 14 denotes an inner conductor connection terminal connected to the inner conductor 12 at one end of the coaxial line 11
- 15 denotes an inner conductor connection terminal connected to the inner conductor connection terminal 14 of the coaxial line 11.
- the outer conductor 13 is connected to the outer conductor 13.
- Reference numeral 16 denotes a balun disposed at the end of the coaxial line 11 opposite to the inner conductor connecting terminal 14 and the outer conductor connecting terminal 15 and connected to the inner conductor 12 of the coaxial line 11.
- Reference numeral 17 denotes a helical element composed of a pair of linear conductors. One end of the helical element 17 is connected to the balun 16, and the other end is symmetric about the coaxial line 11. While turning around the coaxial line 11 in the direction opposite to the balun 16, the end where the inner conductor connecting terminal 14 and the outer conductor connecting terminal 15 of the coaxial line 11 are connected. In this case, the coaxial line 11 is connected to the outer conductor 13.
- Reference numeral 18 denotes a first wireless circuit connected to the outer conductor 13 of the coaxial line 11 via the outer conductor connection terminal 15.
- Reference numeral 19 denotes an inner conductor 12 of the coaxial line 11 via the inner conductor connection terminal 14, an outer conductor 13 of the coaxial line 11 via the outer conductor connection terminal 15, and a second It is a wireless circuit. Note that the first wireless circuit 18 and the second wireless circuit 19 perform communication in different frequency bands. In the illustrated example, the frequency band of the first wireless circuit 18 is different from that of the first wireless circuit 18. Is lower than that of the second wireless circuit 19.
- the helical element 17 forms a helical antenna that is fed by the coaxial line 11 to which the second wireless circuit 19 is connected via the inner conductor connection terminal 14 and the outer conductor connection terminal 15.
- the mode conversion between the coaxial line 11 and the pair of helical elements 17 in the helical antenna is performed between the inner conductor 12 of the coaxial line 11 and the helical element 17. Done by Balun 16. Since the helical antenna generates a conical beam in the axial direction of the coaxial line 11, uniform gain can be obtained in the same horizontal plane.
- the outer conductor 13 of the coaxial line 11 to which the first wireless circuit 18 is connected via the outer conductor connection terminal 15 becomes a monopole antenna element, realizing an omnidirectional antenna in a horizontal plane. .
- the helical antenna has the helical element 17 orbiting around the coaxial line 11 so as to be symmetrical with respect to the coaxial line 11, and the monopole antenna has the outer periphery of the coaxial line 11. Since the conductor 13 is used as an antenna element, the antenna configuration is line-symmetric with respect to the coaxial line. Thus, omnidirectional antennas in the horizontal plane are realized with the axes coincident with the radiation pattern.
- this monopole antenna changes the shape of the helical element 17.
- the helical element 17 can be realized independently of the conductor length and the helical pitch of the helical element 17 without deforming the radiation pattern generated by the helical element 17.
- a helical antenna composed of a pair of helical elements 17 fed by the coaxial line 11 and an outer conductor 13 of the coaxial line 11 passing through the center thereof Since a composite antenna device is formed by combining a monopole antenna with a single antenna on the same axis, a uniform gain can be obtained in a horizontal plane, and the occupied volume can be reduced. There is an effect that a possible composite antenna device is obtained.
- a composite antenna device for a mobile terminal using a two-wire wound helical antenna using a pair of helical elements and a monopole antenna using an outer conductor of a coaxial line has been described.
- a four-wire helical antenna using two pairs of helical elements and a monopole antenna using an outer conductor of a coaxial line may be combined on the same axis.
- FIG. 5 is a perspective view showing a schematic configuration of such a composite antenna device according to Embodiment 2 of the present invention
- FIG. 6 schematically shows a connection between the helical element and a center conductor of a coaxial line. It is the top view shown.
- 1 is a coaxial line
- 1 2 is its inner conductor
- 13 is the same outer conductor
- 14 is the inner conductor connection terminal
- 15 is the outer conductor connection terminal
- 16 is the balun
- 18 is the first wireless circuit
- Reference numeral 19 denotes a second radio circuit, which is the same as that in the first embodiment shown with the same reference numeral in FIG. 4, and therefore detailed description is omitted.
- the coaxial line 20 is the inner conductor connection terminal 14 and the outer conductor connection terminal 15 of the coaxial line 11 And a phase delay element connected to the balun 16 connected to the inner conductor of the coaxial line 11.
- 2 1 is a first helical element whose one end is directly connected to the balun 16, similarly to the helical element 17 in the first embodiment.
- Reference numeral 22 denotes a second helical element having a pair of linear conductors, one end of which is connected to the balun 16 via the phase delay element 20.
- the other ends of the first helical element 21 and the second helical element 22 rotate around the coaxial line 11 so as to be symmetrical about the coaxial line 11.
- the coaxial line 1 In the direction opposite to the balun 16 and the phase delay element 20, at the end where the inner conductor connecting terminal 14 and the outer conductor connecting terminal 15 of the coaxial line 11 are connected, the coaxial line 1 The other end is connected to the outer conductor 13 of 1.
- the first helical element 21 includes only the balun 16 from the coaxial line 11 in which the second radio circuit 19 is connected between the inner conductor connection terminal 14 and the outer conductor connection terminal 15.
- the second helical element 22 is connected to a coaxial line 11 1 in which the second radio circuit 19 is connected between the inner conductor connection terminal 14 and the outer conductor connection terminal 15.
- the mode conversion between the coaxial line 11 and the first helical element 21 and the second helical element 22 in this helical antenna is performed by the balun 16 and the second helical element 2 2 is further provided with a predetermined phase delay by the phase delay element 20 and is fed with a phase delayed from the first helical element 21. Therefore, this helical antenna generates a more symmetrical conical beam with respect to coaxial line 11 than the two-wire wound helical antenna in the first embodiment.
- the outer conductor 13 of the coaxial line 11 to which the first radio circuit 18 is connected via the outer conductor connection terminal 15 becomes a monopole antenna element as in the case of the first embodiment and becomes a horizontal plane. An omnidirectional antenna is realized.
- the helical antenna is configured such that the first helical element 21 and the second helical element 22 orbit around the coaxial line 11 so as to be symmetric with respect to the coaxial line 11.
- the monopole antenna uses the outer conductor 13 of the coaxial line 11 as an antenna element, the antenna configuration is axisymmetric with respect to the coaxial line, and the axis with respect to the radiation pattern is coincident with each other and within the horizontal plane.
- An omnidirectional antenna is realized.
- this monopole antenna can be realized independently of the conductor length and the helical pitch without changing the shapes of the first helical element 21 and the second helical element 22.
- the radiation patterns generated by the first helical element 21 and the second helical element 22 are not deformed.
- a 4-wire wound helical antenna composed of the first helical element 21 and the second helical element 22 fed by the coaxial line 11 1
- the composite antenna device is formed by combining the monopole antenna having the outer conductor 13 of the coaxial line 11 passing through the center with the monopole antenna having the antenna element on the same axis, the antenna is more uniform in the horizontal plane.
- a complex antenna device that can obtain a large gain and reduce the occupied volume can be obtained.
- one helical antenna using a helical element fed by a coaxial line and a monopole antenna formed by the outer conductor of the coaxial line are on the same axis.
- Composite antenna for combined mobile terminals Although the device has been described, a plurality of helical antennas and one monopole antenna may be combined.
- FIG. 7 is a front view showing a schematic configuration of such a composite antenna device according to Embodiment 3 of the present invention.
- each of the two antennas is composed of two pairs of helical elements.
- a composite antenna device for a mobile terminal formed by combining a cylindrical antenna and a single monopole antenna with two bundled outer conductors of a coaxial line on the same axis, is schematically shown. .
- the same reference numerals as in FIG. 5 denote the corresponding parts in the figure, and a description thereof will be omitted.
- reference numeral 23 denotes a first coaxial line, which is one of the above two coaxial lines, bundled and in contact with each other so that their outer conductors 13 are electrically connected.
- Reference numeral 4 denotes a second coaxial line which is another of the above two coaxial lines.
- 25 is a first inner conductor connection terminal connected to the inner conductor 1 2 at one end of the first coaxial line 23, and 26 is an inner conductor 1 at one end of the second coaxial line 24.
- 2 is a second inner conductor connection terminal connected to 2
- 27 is connected to the outer conductor 13 at one end of the first coaxial line 23 and the second coaxial line 24.
- Outer conductor connection terminal is a first inner conductor connection terminal connected to the inner conductor 1 2 at one end of the first coaxial line 23 and the second coaxial line 24.
- Reference numeral 28 denotes an inner conductor of the first coaxial line 23 at an end opposite to the first inner conductor connection terminal 25 and the outer conductor connection terminal 27 of the first coaxial line 23.
- Is a first balun, and 29 is a first phase delay element connected to the inner conductor 12 of the first coaxial line 23 via the first balun 28.
- 30 is the inner conductor 1 2 of the second coaxial line 24 at the end of the second coaxial line 24 opposite to the second inner conductor connecting terminal 26 and the outer conductor connecting terminal 27.
- 3 2 is a helical element composed of two pairs of linear conductors constituting the first helical antenna
- 3 3 is a helical element composed of two pairs of linear conductors constituting the second helical antenna.
- One pair of helical elements 32 constituting the first helical antenna has one end directly connected to the first balun 28, and the other pair has one end connected to the first phase delay element 29. Connected to the first balun 28.
- one pair of the helical elements 33 constituting the second helical antenna has one end directly connected to the second balun 30 and the other pair has one end connected to the second phase delay element. It is connected to the second balun 30 via 3 1.
- the other ends of the helical element 32 forming the first helical antenna and the helical element 33 forming the second helical antenna are connected to the bundled first coaxial line.
- the first and second baluns 2 are rotated while turning around the first and second coaxial lines 23 and 24 so that the first and second coaxial lines 23 and 24 are symmetrical about the center. 8, 30 and the first inner conductor of the first and second coaxial lines 23, 24 facing the direction opposite to the first and second phase delay elements 29, 31.
- the connection terminal 25 the second inner conductor connection terminal 26, and the outer conductor connection terminal 27 are connected
- the outer conductor 1 of the first and second coaxial lines 23, 24 is connected. Connected to 3.
- the third wireless circuit 34 is connected to the inner conductor 12 of the second coaxial line 24 via the second inner conductor connection terminal 26, and is connected to the first and second coaxial lines 2 via the outer conductor connection terminal 27.
- This is a third wireless circuit connected to the outer conductors 13 of 3, 24.
- the first wireless circuit 18 is connected to the outer conductor 13 of the first and second coaxial lines 23 and 24 via the outer conductor connection terminal 27, and the second wireless circuit 19 is connected to the 1 through the inner conductor connection terminal 2 5 of the first coaxial line 2 3 And the outer conductor 13 of the first and second coaxial lines 23, 24 via the outer conductor connection terminal 27, respectively.
- the second wireless circuit 19 and the third wireless circuit 34 perform communication in different frequency bands. In the illustrated example, the frequency band of the second wireless circuit 19 is higher. However, it is slightly higher than that of the third wireless circuit 34.
- the first helical antenna of four-wire winding fed from the first coaxial line 23 by the helical element 32 becomes the second coaxial antenna by the helical element 33.
- a four-wire wound secondary antenna which is fed from the line 24 is formed in each case, and the outer conductors of the bundled first and second coaxial lines 23 and 24 are used as antenna elements.
- a monopole antenna is configured.
- the first helical antenna formed by the helical element 32 is fed by the first coaxial line 23 and has a frequency band corresponding to that of the four-wire helical antenna of the second embodiment. Generates a conical beam.
- the second helical antenna formed by the helical element 33 is also fed by the second coaxial line 24 and generates a conical beam in a corresponding frequency band.
- the multiple antenna device according to the third embodiment has a dual-frequency configuration that generates a conical beam in each frequency band. Since the first and second helical antennas each have a four-wire winding structure, the symmetry of the radiation pattern is good.
- the outer conductors 13 of the first and second coaxial lines 23 and 24 to which the first radio circuit 18 is connected via the outer conductor connection terminal 27 are in contact with each other and are electrically connected. Since they are connected, they become monopole antenna elements similar to those in the first and second embodiments, and are omnidirectional antennas in the horizontal plane. To achieve.
- the helical elements 32, 33 of the first and second helical antennas are symmetrical around the first and second coaxial lines 23, 24.
- the monopole antenna uses the outer conductor 13 of the first and second coaxial lines 23, 24 bundled so that the outer conductor 13 is electrically connected as an antenna element.
- the antenna configuration becomes axisymmetric with respect to the coaxial line, and the axes with respect to the radiation pattern coincide with each other, thereby realizing an omnidirectional antenna in the horizontal plane.
- the monopole antenna can be realized independently of the conductor length and the helical pitch without changing the shape of the helical elements 32 and 33, the first and second helical antennas can be realized. It does not deform the radiation pattern generated by.
- the first helical antenna which is fed by the first coaxial line 23 and is wound in four wires by the helical element 32, and the helical element
- FIG. 8 is a perspective view showing a schematic configuration of a portable terminal using the composite antenna device according to Embodiment 4 of the present invention
- FIG. 9 is a perspective view showing a schematic configuration of a movable mounting portion of the antenna device. It is.
- corresponding parts are denoted by the same reference numerals as in FIG. 1, and description thereof is omitted.
- reference numeral 35 denotes a radio housing in which a first radio circuit 18 and a second radio circuit 19 are built, and a composite antenna device connected to them is rotatably mounted.
- Reference numeral 36 denotes a rotation axis for rotatably mounting the composite antenna to the radio housing 35. The rotation axis of the rotation axis is orthogonal to the axial direction of the coaxial line 11 of the composite antenna device.
- Reference numeral 3 7 denotes a first sliding contact body which rotates about the rotating shaft 36
- reference numeral 38 denotes a first sliding contact body which is electrically insulated from the first sliding contact body 37. This is the second sliding contact body that rotates about.
- the first sliding contact 37 is electrically connected to the inner conductor 12 of the coaxial line 11 to function as an inner conductor connecting terminal, and the second sliding contact is outside the coaxial line 11. It is electrically connected to conductor 13 and functions as an outer conductor connection terminal.
- the operating principle of the composite antenna device is the same as in the first to third embodiments.
- the second wireless circuit 19 When power is supplied from the second wireless circuit 19 via the coaxial line 11, a conical beam is generated.
- the outer conductor 13 of the coaxial line 11 for supplying power to the helical antenna operates as a monopole antenna element.
- the first wireless circuit 18 is always connected to the outer conductor 13 of the coaxial line 11 via a second sliding connector 38 functioning as an outer conductor connection terminal.
- the second wireless circuit 19 is connected to the inner conductor 12 of the coaxial line 11 via the first sliding connector 37 functioning as an inner conductor connecting terminal and the second sliding connector 38. It is always connected to the outer conductor 13 of the coaxial line 11 via.
- an antenna device that combines a helical antenna fed by the coaxial line 11 and a monopole antenna formed by the outer conductor 13 of the coaxial line 11 is rotated about the rotation axis 36. Also, by the action of the first sliding connection 37 and the second sliding connection 38, the first wireless circuit 18 and the second wireless circuit 19 and the coaxial line 11 The connection between the conductor 12 and the outer conductor 13 is not broken.
- the composite antenna device when the portable terminal is not used, the composite antenna device is fixed at a position overlapping with the wireless device housing 35, and when used, the composite antenna device is rotated, and as shown in FIG. If it is fixed at a position that does not overlap the housing 35, it can be used as a composite antenna device that can obtain a uniform gain in the horizontal plane.
- Embodiment 5 it is possible to realize a composite antenna device rotatable around the rotation axis 36.
- the composite antenna device is fixed at a position overlapping with the radio housing 35. Therefore, there is an effect that the portability of the mobile terminal can be improved.
- the composite antenna device is improved by improving the portability of the portable terminal by rotating and fixing the composite antenna device to a position overlapping the wireless device housing.
- the portability of the mobile terminal by storing the Noh.
- FIG. 10 and FIG. 11 are schematic configuration diagrams showing such a composite antenna device according to Embodiment 5 of the present invention.
- FIG. 11 schematically shows a state where the composite antenna device is housed in the housing of the wireless device.
- corresponding parts are denoted by the same reference numerals as in FIGS. 8 and 9, and description thereof is omitted.
- reference numeral 39 denotes a helical antenna and a coaxial line which are connected to a first radio circuit 18 and a second radio circuit 19 built in the radio housing 35 and fed by a coaxial line 11.
- This is an antenna storage room in which a composite antenna device with a monopole antenna formed by the outer conductor 13 of 11 is stored.
- Reference numeral 40 denotes a sub-antenna element arranged in series at the upper end of the composite antenna device housed in the antenna housing room 39 so as not to be electrically connected to the coaxial line 11; This is a connection terminal for this sub-antenna element 40.
- the sub-antenna element 40 a helical conductor in which a linear conductor connected to the connection terminal 41 is helically wound is used as the sub-antenna element 40.
- the first wireless circuit 19 is connected to the connection terminal 41 of the sub-antenna element 40, and the antenna 42 is connected to the antenna.
- it is a first panel-shaped contact as a switching means that is connected to the outer conductor connection terminal 15 provided at the lower end of the coaxial line 11.
- 4 3 indicates that the second wireless circuit 19 is connected to the inner conductor connection terminal 1 provided at the lower end of the coaxial line 11 only when the composite antenna device is pulled out of the antenna housing room 3 9 of the wireless device housing 35. 4 and a second panel-like connection as switching means, which is connected between Is a point.
- the operating principle of the composite antenna device is also the same as in Embodiments 1 to 3 in this case.
- conical antenna is used.
- the antenna operates as a helical antenna that generates a single antenna, and when power is supplied by the first wireless circuit 18, the outer conductor 13 of the coaxial line 11 for supplying power to the helical antenna is used as a monopole antenna element. Operate.
- the composite antenna device When the portable terminal is not used, as shown in FIG. 11, the composite antenna device is stored in the antenna storage room 39 of the radio unit housing 35, and when used, as shown in FIG. As shown in the figure, the composite antenna device is pulled out of the antenna housing room 39 of the radio housing 35.
- the first wireless circuit 18 when the composite antenna device is pulled out of the antenna storage room 39 during use, the first wireless circuit 18 is connected to the coaxial line 11 through the first panel-shaped contact 42.
- the second radio circuit 19 is connected to the outer conductor connection terminal 15 arranged at the lower end, and the second radio circuit 19 is connected to the inner conductor arranged at the lower end of the coaxial line 11 via the second panel-shaped contact 43. Connected between terminal 14 and outer conductor connection terminal 15. Then, the helical antenna fed through this coaxial line 11 generates a conical beam, and the outer conductor 13 of the coaxial line 11 becomes a monopole antenna element. Realize.
- the composite antenna device When the portable terminal has been used, the composite antenna device is housed in the antenna housing room 39 of the radio housing 35 as shown in FIG. As a result, the first wireless circuit 18 is connected to the upper end of the coaxial line 11 via the first panel-shaped contact 42 and is electrically insulated from the helical conductor. Connected to the connection terminal 41 of the antenna element 40. On the other hand, the second wireless circuit 19 has the second panel-like contact 43 connected to the inner conductor connection at the lower end of the coaxial line 11. Since the contact with the terminal 14 and the outer conductor connection terminal 15 is cut off, the terminal is not connected. At this time, power is supplied from the first wireless circuit 18 to the sub-antenna element 40 made of a helical conductor, and the helical conductor is operated as a lithographic monopole antenna. Can be secured.
- the provision of the panel-like contacts 42 and 43 as the switching means allows the remote antenna fed from the coaxial line 11 and the coaxial line 1
- the composite antenna device in which the monopole antenna having the outer conductor 13 as an antenna element, is movable in the axial direction, and can be stored in the antenna storage room 39 provided in the radio housing 35. Therefore, the portability of the portable terminal is improved, and when the composite antenna device is housed, it is possible to operate as a helical monopole antenna by supplying power to the sub-antenna element 40 using a helical conductor, and to secure a gain. Which effect has.
- FIGS. 12 and 13 are schematic configuration diagrams showing a composite antenna device according to Embodiment 6 of the present invention in the case where a bent conductor is used as a sub-antenna element.
- FIG. 13 schematically shows a state where the composite antenna device is pulled out from the housing of the device, and
- FIG. 13 shows a state where the composite antenna device is stored in the housing of the wireless device.
- the corresponding parts are denoted by the same reference numerals as those in FIGS. 10 and 11, and the description thereof will be omitted.
- connection terminal 4 1 Is a sub-antenna element composed of a bent conductor in which a zigzag meandering linear conductor is zigzag, and the coaxial line 11 is located at the upper end of the composite antenna device housed in the antenna housing room 39. They are arranged in series so that they are not electrically connected.
- the operating principle of the composite antenna device configured as described above is basically the same as that of the fifth embodiment.
- the coaxial line 1 The antenna operates as a monopole antenna composed of a spiral antenna fed from 1 and an outer conductor 13 of the coaxial line 11.
- the first radio circuit 18 supplies power to the sub-antenna device 44 using a bent conductor, so that gain can be secured even when housed. Can be.
- the portability of the portable terminal is improved, and there is an effect that the gain can be secured even when the portable terminal is stored.
- the coaxial line-fed helical antenna and the monopole antenna using the outer conductor of the coaxial line passing through the center as an antenna element are combined on the same axis.
- the antenna device movable it can be stored in a wireless device housing when not in use, thereby improving portability. Suitable for use as an antenna device.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Support Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97946817A EP0957533B1 (en) | 1997-12-03 | 1997-12-03 | Combination antenna device |
US09/308,333 US6222505B1 (en) | 1997-12-03 | 1997-12-03 | Composite antenna apparatus |
JP52364999A JP3439772B2 (ja) | 1997-12-03 | 1997-12-03 | 複合アンテナ装置 |
PCT/JP1997/004427 WO1999028989A1 (fr) | 1997-12-03 | 1997-12-03 | Dispositif antenne combine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP1997/004427 WO1999028989A1 (fr) | 1997-12-03 | 1997-12-03 | Dispositif antenne combine |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999028989A1 true WO1999028989A1 (fr) | 1999-06-10 |
Family
ID=14181587
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1997/004427 WO1999028989A1 (fr) | 1997-12-03 | 1997-12-03 | Dispositif antenne combine |
Country Status (4)
Country | Link |
---|---|
US (1) | US6222505B1 (ja) |
EP (1) | EP0957533B1 (ja) |
JP (1) | JP3439772B2 (ja) |
WO (1) | WO1999028989A1 (ja) |
Cited By (6)
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FR2781607A1 (fr) * | 1998-07-22 | 2000-01-28 | Vistar Telecommunications Inc | Antenne integree a double mode et son procede de realisation |
EP1235299A1 (en) * | 1999-11-17 | 2002-08-28 | NEC Corporation | Mobile satellite communication terminal and method for using the same |
KR100493349B1 (ko) * | 1999-02-26 | 2005-06-07 | 가부시키가이샤 어드밴티스트 | 델타 타임 이벤트형 테스트 시스템 |
WO2007029741A1 (ja) * | 2005-09-09 | 2007-03-15 | Matsushita Electric Industrial Co., Ltd. | 無線機用アンテナ装置及び携帯無線機 |
JP2012227694A (ja) * | 2011-04-19 | 2012-11-15 | Ryokuseisha Corp | ラジオブイ用アンテナ上竿及びその製造方法 |
CN103650271A (zh) * | 2011-04-19 | 2014-03-19 | Est日本株式会社 | 传送媒体、传送装置及传送方法 |
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JP2000138523A (ja) * | 1998-10-30 | 2000-05-16 | Nec Corp | ヘリカルアンテナ |
EP1087462A4 (en) * | 1999-04-06 | 2004-12-22 | Mitsubishi Electric Corp | METHOD FOR PRODUCING CELLULAR RADIO AND ITS HOUSING |
US6329954B1 (en) * | 2000-04-14 | 2001-12-11 | Receptec L.L.C. | Dual-antenna system for single-frequency band |
US6535683B1 (en) | 2000-10-06 | 2003-03-18 | Adc Telecommunications, Inc. | Cable exit trough with cover |
WO2003105273A2 (en) * | 2002-06-10 | 2003-12-18 | Hrl Laboratories, Llc | Low profile, dual polarized/pattern antenna |
US6806838B2 (en) | 2002-08-14 | 2004-10-19 | Delphi-D Antenna Systems | Combination satellite and terrestrial antenna |
CN100583682C (zh) * | 2002-12-04 | 2010-01-20 | Nxp股份有限公司 | 使用单个天线来实现真正的分集接收的方法和设备 |
TW592411U (en) * | 2003-04-28 | 2004-06-11 | Quanta Comp Inc | Portable wireless device |
US7262735B2 (en) * | 2004-11-29 | 2007-08-28 | Lexmark International, Inc. | Snap-in antenna assembly for wireless radio circuit card |
US7633998B2 (en) | 2004-12-21 | 2009-12-15 | Delphi Technologies, Inc. | Wireless home repeater for satellite radio products |
GB2430556B (en) * | 2005-09-22 | 2009-04-08 | Sarantel Ltd | A mobile communication device and an antenna assembly for the device |
JP2009514307A (ja) | 2005-10-26 | 2009-04-02 | エヌエックスピー ビー ヴィ | 携帯電子機器用uhf/vhf平面アンテナ装置 |
US7817101B2 (en) * | 2006-10-24 | 2010-10-19 | Com Dev International Ltd. | Dual polarized multifilar antenna |
CA2681137A1 (en) * | 2008-09-11 | 2010-03-11 | Toru Sugama | Transmission medium |
US8106846B2 (en) * | 2009-05-01 | 2012-01-31 | Applied Wireless Identifications Group, Inc. | Compact circular polarized antenna |
US8618998B2 (en) | 2009-07-21 | 2013-12-31 | Applied Wireless Identifications Group, Inc. | Compact circular polarized antenna with cavity for additional devices |
US10038235B2 (en) * | 2013-03-05 | 2018-07-31 | Maxtena, Inc. | Multi-mode, multi-band antenna |
US10020586B1 (en) * | 2017-07-07 | 2018-07-10 | The Florida International University Board Of Trustees | Segmented helical antenna with reconfigurable polarization |
WO2020202531A1 (ja) * | 2019-04-04 | 2020-10-08 | オリンパス株式会社 | 受信システム |
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- 1997-12-03 US US09/308,333 patent/US6222505B1/en not_active Expired - Fee Related
- 1997-12-03 EP EP97946817A patent/EP0957533B1/en not_active Expired - Lifetime
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2781607A1 (fr) * | 1998-07-22 | 2000-01-28 | Vistar Telecommunications Inc | Antenne integree a double mode et son procede de realisation |
GB2339969A (en) * | 1998-07-22 | 2000-02-09 | Vistar Telecommunications Inc | Co-located quadrifilar and monopole antenna |
US6181286B1 (en) | 1998-07-22 | 2001-01-30 | Vistar Telecommunications Inc. | Integrated satellite/terrestrial antenna |
KR100493349B1 (ko) * | 1999-02-26 | 2005-06-07 | 가부시키가이샤 어드밴티스트 | 델타 타임 이벤트형 테스트 시스템 |
EP1235299A1 (en) * | 1999-11-17 | 2002-08-28 | NEC Corporation | Mobile satellite communication terminal and method for using the same |
EP1235299A4 (en) * | 1999-11-17 | 2003-01-22 | Nec Corp | MOBILE SATELLITE COMMUNICATION TERMINAL AND METHOD OF USING SAME |
WO2007029741A1 (ja) * | 2005-09-09 | 2007-03-15 | Matsushita Electric Industrial Co., Ltd. | 無線機用アンテナ装置及び携帯無線機 |
JP2012227694A (ja) * | 2011-04-19 | 2012-11-15 | Ryokuseisha Corp | ラジオブイ用アンテナ上竿及びその製造方法 |
CN103650271A (zh) * | 2011-04-19 | 2014-03-19 | Est日本株式会社 | 传送媒体、传送装置及传送方法 |
Also Published As
Publication number | Publication date |
---|---|
US6222505B1 (en) | 2001-04-24 |
EP0957533A1 (en) | 1999-11-17 |
JP3439772B2 (ja) | 2003-08-25 |
EP0957533B1 (en) | 2004-05-06 |
EP0957533A4 (en) | 2001-12-19 |
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