JPS6479683A - Antenna apparatus - Google Patents

Antenna apparatus

Info

Publication number
JPS6479683A
JPS6479683A JP23841487A JP23841487A JPS6479683A JP S6479683 A JPS6479683 A JP S6479683A JP 23841487 A JP23841487 A JP 23841487A JP 23841487 A JP23841487 A JP 23841487A JP S6479683 A JPS6479683 A JP S6479683A
Authority
JP
Japan
Prior art keywords
radio wave
received
phase
antennas
transmission
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP23841487A
Other languages
Japanese (ja)
Inventor
Toshihiko Aoki
Takashi Kataki
Shinkei Orime
Susumu Hishinuma
Koji Ogiso
Yasuhiko Nishioka
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP23841487A priority Critical patent/JPS6479683A/en
Priority to EP19880115247 priority patent/EP0308830B1/en
Priority to DE19883850727 priority patent/DE3850727T2/en
Publication of JPS6479683A publication Critical patent/JPS6479683A/en
Priority to US08/027,926 priority patent/US5257030A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H01Q3/2605—Array of radiating elements provided with a feedback control over the element weights, e.g. adaptive arrays
    • H01Q3/2647—Retrodirective arrays

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Aerials With Secondary Devices (AREA)

Abstract

PURPOSE:To enable automatic radiation of a beam of a transmitted radio wave in the incoming direction of a received radio wave regardless of a difference in the frequency of the received and transmitted radio waves, by arranging an element antenna, an A/D converter, a phase shifter and the like to detect the incoming direction of the received radio wave. CONSTITUTION:A received radio wave arriving from the incoming direction 13 of the received radio wave is received with element antennas 1a and 1b and received 3a and 3b via transmission/reception separators 2a and 2b. The received signals are converted 4a and 4b into digital from analog with a signal processor 8. The device 8 calculates a reception phase and an amplitude of the antennas 1a and 1b corresponding to arrival lengths 15a and 15b from equal phase planes 14 of the antennas 1a and 1b to compute the direction 13 by FFT. A transmission radio wave controlled in the phase with phase shifters 11a and 11b is amplified with transmitters 12a and 12b to remove undesired radio waves and transmitted through the antennas 1a and 1b via the devices 2a and 2b. At this point, as the phase shifters 11a and 11b control the phase of the transmission radio wave so that the equal phase plane of the transmission radio wave coincides with that 14 of the reception radio wave thereby permitting the radiating of the beam of the transmission radio wave in the direction 13.
JP23841487A 1987-09-22 1987-09-22 Antenna apparatus Pending JPS6479683A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP23841487A JPS6479683A (en) 1987-09-22 1987-09-22 Antenna apparatus
EP19880115247 EP0308830B1 (en) 1987-09-22 1988-09-16 Antenna system
DE19883850727 DE3850727T2 (en) 1987-09-22 1988-09-16 Antenna system.
US08/027,926 US5257030A (en) 1987-09-22 1993-03-05 Antenna system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23841487A JPS6479683A (en) 1987-09-22 1987-09-22 Antenna apparatus

Publications (1)

Publication Number Publication Date
JPS6479683A true JPS6479683A (en) 1989-03-24

Family

ID=17029851

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23841487A Pending JPS6479683A (en) 1987-09-22 1987-09-22 Antenna apparatus

Country Status (3)

Country Link
EP (1) EP0308830B1 (en)
JP (1) JPS6479683A (en)
DE (1) DE3850727T2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0372385U (en) * 1989-11-15 1991-07-22
CN111814688A (en) * 2020-07-09 2020-10-23 成都傅立叶电子科技有限公司 FFTc-based digital beam forming angle capturing method and device and storage medium

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1092847C (en) * 1994-09-14 2002-10-16 皇家菲利浦电子有限公司 A radio transmission system and radio apparatus for use in such system
GB0124841D0 (en) * 2001-10-16 2001-12-05 Secretary Trade Ind Brit Communication system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3394374A (en) * 1961-08-11 1968-07-23 Packard Bell Electronics Corp Retrodirective antenna array
US4350982A (en) * 1974-06-03 1982-09-21 The United States Of America As Represented By The Secretary Of The Navy Frequency-agile transponder
GB2072986B (en) * 1980-03-26 1984-06-13 Standard Telephones Cables Ltd Phased array signal processing
GB2167626B (en) * 1984-11-20 1988-08-17 Raytheon Co Radio frequency antenna systems

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0372385U (en) * 1989-11-15 1991-07-22
CN111814688A (en) * 2020-07-09 2020-10-23 成都傅立叶电子科技有限公司 FFTc-based digital beam forming angle capturing method and device and storage medium
CN111814688B (en) * 2020-07-09 2023-10-13 成都傅立叶电子科技有限公司 FFTc-based digital wave beam forming angle capturing method and device and storage medium

Also Published As

Publication number Publication date
EP0308830B1 (en) 1994-07-20
DE3850727D1 (en) 1994-08-25
EP0308830A2 (en) 1989-03-29
DE3850727T2 (en) 1995-03-16
EP0308830A3 (en) 1990-05-02

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