WO1991003846A1 - Systeme d'antenne microbande - Google Patents

Systeme d'antenne microbande Download PDF

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Publication number
WO1991003846A1
WO1991003846A1 PCT/JP1990/000881 JP9000881W WO9103846A1 WO 1991003846 A1 WO1991003846 A1 WO 1991003846A1 JP 9000881 W JP9000881 W JP 9000881W WO 9103846 A1 WO9103846 A1 WO 9103846A1
Authority
WO
WIPO (PCT)
Prior art keywords
microstrip
plates
microstrip array
distribution
gain
Prior art date
Application number
PCT/JP1990/000881
Other languages
English (en)
Japanese (ja)
Inventor
Toshikiyo Hirata
Yujiro Taguchi
Original Assignee
Toyo Communication Equipment Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyo Communication Equipment Co., Ltd. filed Critical Toyo Communication Equipment Co., Ltd.
Priority to CA002037911A priority Critical patent/CA2037911C/fr
Publication of WO1991003846A1 publication Critical patent/WO1991003846A1/fr
Priority to GB9107099A priority patent/GB2243492B/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • H01Q21/061—Two dimensional planar arrays
    • H01Q21/065—Patch antenna array
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
    • H01Q1/281—Nose antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array

Definitions

  • the present invention relates to a microstrip antenna system capable of obtaining a substantially uniform antenna gain in all directions.
  • Figure 9 shows the microstrip antenna used in such a system.
  • -It is a perspective view which shows an example.
  • the micro-street and sable antenna shown in this figure are used, for example, mounted on the fuselage of an aircraft, and are arranged in a fairing (radome) 102 mounted on the base 101. It has a frame 103 and two microstrip array plates 104, 105 mounted on the frame 103.
  • Each microstrip array plate 104, 105 is composed of a substrate 106 made of a low dielectric material, and a ground surface 107 formed on the back surface of the substrate 106. And a plurality of excitation elements 08 formed on the surface of the substrate 106.
  • each microstrip array plate is supplied to each of the excitation elements 108 or the phase received by the excitation elements 108 is phase-shifted by a predetermined amount by a phase shifter (not shown).
  • the directivity is reduced in the range of 180 degrees in the facing direction, and two micro strips on the left and right allow communication in all directions. ing.
  • the present invention solves the above-mentioned drawbacks of the conventional microstrip antenna, and provides a microstrip antenna system capable of securing a sufficient gain in each direction. It is an object.
  • a plurality of microstrip array plates arranged to face each other in at least four directions of front, rear, left and right, and each of these microstrip array plates.
  • FIG. 1 is a side view showing one embodiment of a microstrip antenna system according to the present invention
  • FIG. 2 is a front view of the microstrip antenna system shown in FIG. 1
  • FIG. 4 is a perspective view showing details of the frame shown in FIG. 1
  • FIG. 4 is a perspective view showing details of the microstrip array plate shown in FIG. 1
  • FIG. 5 is a block diagram showing a circuit example of the embodiment.
  • Fig. 6 shows the radiation characteristics of each microstrip array plate used in the ⁇ embodiment
  • Fig. 7 shows the calibration diagram for explaining the radiation characteristics of the protruding embodiment
  • Fig. 8 FIG. 9 is a perspective view showing an example of a conventionally known microstory and Sop antenna
  • FIG. FIG. 10 is a diagram for explaining the characteristics of the microstrip antenna shown in FIG. '
  • FIG. 1 is a side view showing an embodiment of the present invention
  • FIG. 2 is a front view of the embodiment.
  • the microstrip antenna shown in these figures is mounted on the upper surface of the body rest of an aircraft, for example, and is used by being stored between the base 1 and the fitting 2 mounted thereon.
  • I a triangular prism-shaped frame 3, two microstrip array plates 4 and 5 fixed to the sides of the frame 3, and microstrips fixed to the front and rear portions of the frame 3. It has a tri-array and a so-called array plate 6 and 7.
  • the frame 3 has a front frame 8 fixed to the upper body 1 and four mounting frames 9 to 12 projecting obliquely upward on the bottom frame.
  • the microstrip array plates 4 to 7 are mounted on the mounting frames 9 to 12, respectively, and fixed.
  • the mounting frames 9 and 10 located on the side have trapezoids with punched insides, and the mounting frames 11 and 12 located in front and back have a triangular shape with punched insides.
  • the microstrip array plates 4, 5, 6, and 7 are composed of a substrate 13 made of a low dielectric material or the like, and a ground surface formed on the top surface of the substrate 13. And a plurality of excitation elements 15 formed on the surface of the substrate 13.
  • front and rear microstrip array plates 6 and 7 are different from the front-side microstrip array plates 4 and 5 in area and number of excitation elements.
  • These microstory and soffary plates are, for example, shown in FIGS. 1 and 2 described above. As shown in the figure, it is arranged on the roof of the house in a sloping manner in all directions.
  • Each excitation element 15 and ground plane 14 of each of the microstrip array plates 4 to 7 is connected to the distribution / combination circuit shown in FIG.
  • the distribution and synthesis circuits shown in the figure correspond to the left and right distribution coupling circuits 18 and 19, the front distribution coupling circuit 20 and the front distribution coupling circuit 19, respectively, corresponding to the microstrip array plates 4 to 7 respectively.
  • a rear distribution / coupling circuit 22 is provided, and these are connected to a transceiver (not shown) via the selection circuit 22.
  • the distributing / coupling circuits 18 to 21 include a plurality of phase shifters 23 connected to each excitation of the microstrip array plate, and a distributing coupler 2 connected to each of these phase shifters 23. 4, a fixed phase shifter 25 for adjusting the phase shift of the input / output ⁇ of the distribution coupler 24, and a switching switch 26 connected to the semi-fixed phase shifter 25. It has a distribution coupler 27 connected to the switching switch 26 and the selection circuit 22.
  • Each of the phase shifters 23 is a part for controlling the directivity of the entire antenna by adjusting the phase of the transmission / reception signal input / output with respect to each excitation element of the microstrip array plate.
  • the distribution coupler 24 distributes the transmission signal to each of the phase shifters 23 and receives the transmission signal from each of the phase shifters 23. Are supplied and supplied to the semi-fixed phase shifter 25 as one receiver ⁇ -3.
  • the directivity is run to the left and right around the direction orthogonal to each other using each microstrip antenna above II. From the top view of Fig. 7, from the bottom square center In each vertex angle direction, adjacent antennas are used, and both directional characteristics are combined and used.
  • the fixed phase shifter 25 compensates for the phase shift due to the difference in the directions of the two antennas, etc., and the phase of the micro strip array plate and the micro strip array plate adjacent thereto are set. For example, by adjusting the phase of 4 or 5) for the array 6 and synthesizing the signals received by each excitation element 1 B of each micro strip plate, the phase The shift of the phase of this transmission when the transmission is supplied from the switching switch 26 is supplied to the distribution coupler 24 when the transmission is supplied from the switching switch 26. When a reception signal is supplied from the distribution coupler 24, the phase of the reception signal is shifted and supplied to the front switch 26.
  • the switching switch 26 has a common terminal 26a connected to the semi-fixed phase shifter 25, a terminal 26b connected to the selection circuit 22 and, for example, a front distribution coupling circuit 20.
  • the distribution coupler 27 is a part that performs distribution coupling of transmission and reception signals when directing the directivity to the adjacent directions of the two microstrip array plates, and combines input and output signals of adjacent arrays. It is for distribution.
  • the selection circuit 22 is connected to the common terminal 72 2a connected to the transmitter / receiver and to the switching switch 26 of the front / left / front and front / rear division coupling circuits 18 to 21. Terminals 30, 32, 34, 36, and selection terminals 31, 33, 35, 37 connected to distribution coupler 27 are provided.Common terminal 22 a according to the direction of the finger To any of the terminals 30 to 37. Next, the operation principle of this embodiment and the ⁇ -body operation will be described with reference to FIGS. 6 to 8.
  • each of the microstrip array plates 4 to 7 has the largest gain in the direction facing the excitation element F ⁇ 5, as shown in the beam scanning characteristics in FIG. 6, and in the direction (lateral direction) perpendicular to this direction. It has the characteristic that the gain is low for beam scanning.
  • 5, 6, microstrip array for right rear area 5, ⁇ , microstrip array for left rear area 4, 7, microstrip array for front left area In combination as shown in 4 and 6, the two antenna arrays involved cooperate to compensate for the gain reduction in these regions as shown in FIG.
  • the switch in the selection circuit 22 is switched so that the common terminal 22 a and the right terminal The selection terminal 32 is connected, and the switching switch 26 of the right distribution coupling circuit 19 is switched to connect the common terminal 26a and the terminal 26b.
  • phase of each phase shifter 23 in the right distribution coupling circuit 19 is adjusted according to the directivity direction.
  • transceiver This allows the transceiver to switch between the selection circuit 22 and the right distribution coupling circuit 19. It is connected to each excitation element 15 of the microstrip array plate 5 via a path including an switch 26, a semi-fixed phase shifter 25, a distribution coupler 24, and each phase shifter 23.
  • the switch in the selection circuit 22 is switched so that the common terminal 22a and the right front portion are switched. While the selection terminal 3 3 is connected, the switching switch 26 of the right distribution coupling circuit 19 is switched to connect the common terminal 26 a to the terminal 7 26 c, and the front distribution coupling is performed. The switching switch 26 of the circuit 20 is switched so that the common terminal 26a and the terminal 26d are connected.
  • phase of each phase shifter 23 in the right distribution coupling circuit 19 and the phase of each phase shifter 23 in the front distribution coupling circuit 20 correspond to the ⁇ direction. Is adjusted.
  • the transmitter / receiver input signal is supplied to the distribution coupler 27 of the right distribution coupling circuit 19 via the selection circuit 22, where it is branched in two directions and transmitted to the other.
  • the signal passes through the switch 26 of the front splitter / coupling circuit 20, the semi-fixed phase shifter 25, the splitter 24, and each phase shifter 23. It is supplied to the excitation element 15.
  • the other transmission signal branched by the distribution coupler 27 of the right distribution coupling circuit 19 is connected to the switch 26 of the block 19, the semi-fixed phase shifter 25, and the distribution coupler 24.
  • the microstrip and the sub-array plate 5 are supplied to the respective excitation elements 15 through the path of each phase shifter 23.
  • radio waves are emitted from the respective excitation elements 15 of the microstrip array plates 5 and 6, and as a result, the directivity is determined by the control phases of the two.
  • the receiving operation in this state is completely opposite to that in the above-mentioned transmission, and the signals received by the microstrip array plates 5 and 6 are divided by the right distribution coupling circuit ⁇ 9.
  • the signals are combined in the coupler 27 and supplied to the transceiver (not shown) via the selector 22.
  • the phases of the transmission and reception signals to and from each of the microstrip array plates 4 to 7 are corrected by using the four semi-fixed phase shifters 25.
  • a variable phase shifter may be used in place of the device 25, and fine phase control may be performed in accordance with the communication direction so that the value always becomes an appropriate value.
  • an area which cannot be covered by one microstrip antenna is divided by two or more antennas adjacent to each other to cooperate with each other. Therefore, a sufficient gain can be secured in each direction.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

Lorsqu'on doit former des faisceaux dans les sens des points de commutation des plaques de réseau microbandes, on utilise deux plaques de réseau microbandes associées aux points de commutation, et l'on corrige la déviation de phase provoquée par le positionnement des deux éléments grâce à un déphaseur demi-fixe. Cet agencement permet d'obtenir un gain suffisamment important dans toutes les directions, y compris les directions limites dans chacune des parties du réseau d'antenne, dans lequel le gain était jusqu'à présent très limité.
PCT/JP1990/000881 1989-09-08 1990-07-09 Systeme d'antenne microbande WO1991003846A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA002037911A CA2037911C (fr) 1989-09-08 1990-07-09 Antenne a microrubans
GB9107099A GB2243492B (en) 1989-09-08 1991-04-04 Microstrip antenna system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1233856A JP2939561B2 (ja) 1989-09-08 1989-09-08 マイクロストリップアンテナシステム
JP1/233856 1989-09-08

Publications (1)

Publication Number Publication Date
WO1991003846A1 true WO1991003846A1 (fr) 1991-03-21

Family

ID=16961642

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1990/000881 WO1991003846A1 (fr) 1989-09-08 1990-07-09 Systeme d'antenne microbande

Country Status (5)

Country Link
JP (1) JP2939561B2 (fr)
AU (1) AU637119B2 (fr)
CA (1) CA2037911C (fr)
GB (1) GB2243492B (fr)
WO (1) WO1991003846A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014093599A (ja) * 2012-11-01 2014-05-19 Mitsubishi Electric Corp アレーアンテナ装置およびその制御方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07321534A (ja) * 1994-05-25 1995-12-08 Nec Corp アンテナシステム
US5552798A (en) * 1994-08-23 1996-09-03 Globalstar L.P. Antenna for multipath satellite communication links
DE19845868A1 (de) * 1998-10-05 2000-04-06 Pates Tech Patentverwertung Doppelfokusplanarantenne
US7307579B2 (en) * 2004-11-03 2007-12-11 Flight Safety Technologies, Inc. Collision alerting and avoidance system
CN101584083B (zh) * 2006-12-18 2012-11-14 艾利森电话股份有限公司 前视/后视机载雷达
US20100053003A1 (en) * 2006-12-18 2010-03-04 Hoeoek Anders Microwave power distribution system for an airborne radar system
TWI746218B (zh) * 2020-10-20 2021-11-11 鼎天國際股份有限公司 視野大於160度之可撓性軟板雷達天線裝置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52660B2 (fr) * 1971-10-12 1977-01-10
JPS60117802A (ja) * 1983-11-29 1985-06-25 Nec Corp 電子走査空中線
JPS60249401A (ja) * 1984-05-25 1985-12-10 Mitsubishi Electric Corp レ−ダ装置
JPS6154703A (ja) * 1984-08-24 1986-03-19 Nec Corp 電子走査空中線

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU477857B2 (en) * 1973-02-01 1975-07-03 Amalgamated Wireless (Australasia) Limited Scanning antenna arrangement
US4667201A (en) * 1983-11-29 1987-05-19 Nec Corporation Electronic scanning antenna
EP0371133B1 (fr) * 1987-02-13 1994-04-13 Mitsubishi Denki Kabushiki Kaisha Holographic radar
US4924235A (en) * 1987-02-13 1990-05-08 Mitsubishi Denki Kabushiki Kaisha Holographic radar
JP2629219B2 (ja) * 1987-12-18 1997-07-09 ソニー株式会社 衛星放送用のダイバシティ受信装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52660B2 (fr) * 1971-10-12 1977-01-10
JPS60117802A (ja) * 1983-11-29 1985-06-25 Nec Corp 電子走査空中線
JPS60249401A (ja) * 1984-05-25 1985-12-10 Mitsubishi Electric Corp レ−ダ装置
JPS6154703A (ja) * 1984-08-24 1986-03-19 Nec Corp 電子走査空中線

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014093599A (ja) * 2012-11-01 2014-05-19 Mitsubishi Electric Corp アレーアンテナ装置およびその制御方法

Also Published As

Publication number Publication date
GB9107099D0 (en) 1991-06-05
CA2037911C (fr) 1996-03-05
GB2243492B (en) 1994-08-10
GB2243492A (en) 1991-10-30
CA2037911A1 (fr) 1991-03-09
JP2939561B2 (ja) 1999-08-25
AU5937190A (en) 1991-04-08
AU637119B2 (en) 1993-05-20
JPH0396105A (ja) 1991-04-22

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