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JPS5315046A - Retro-directive array antenna system - Google Patents

Retro-directive array antenna system

Info

Publication number
JPS5315046A
JPS5315046A JP8931476A JP8931476A JPS5315046A JP S5315046 A JPS5315046 A JP S5315046A JP 8931476 A JP8931476 A JP 8931476A JP 8931476 A JP8931476 A JP 8931476A JP S5315046 A JPS5315046 A JP S5315046A
Authority
JP
Japan
Prior art keywords
retro
antenna system
array antenna
directive array
radio wave
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.)
Granted
Application number
JP8931476A
Other languages
Japanese (ja)
Other versions
JPS5840843B2 (en
Inventor
Makoto Ono
Tadashi Numazaki
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 JP8931476A priority Critical patent/JPS5840843B2/en
Publication of JPS5315046A publication Critical patent/JPS5315046A/en
Publication of JPS5840843B2 publication Critical patent/JPS5840843B2/en
Expired 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
    • H01Q3/44—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 electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element
    • H01Q3/46—Active lenses or reflecting arrays

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

PURPOSE:To determine the frequency of the pilot signal and improve the deterioration of characteristics by making minimum the mean value of the angle differences between the maximum direction of transmission and reception directivity within the radio wave arriving angle and the direction of radio wave arrival.
JP8931476A 1976-07-27 1976-07-27 Retrodirective array antenna method Expired JPS5840843B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8931476A JPS5840843B2 (en) 1976-07-27 1976-07-27 Retrodirective array antenna method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8931476A JPS5840843B2 (en) 1976-07-27 1976-07-27 Retrodirective array antenna method

Publications (2)

Publication Number Publication Date
JPS5315046A true JPS5315046A (en) 1978-02-10
JPS5840843B2 JPS5840843B2 (en) 1983-09-08

Family

ID=13967195

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8931476A Expired JPS5840843B2 (en) 1976-07-27 1976-07-27 Retrodirective array antenna method

Country Status (1)

Country Link
JP (1) JPS5840843B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7750791B2 (en) 2003-11-20 2010-07-06 Telecom Italia S.P.A. Method of and apparatus for long distance reading of passive tags in radio frequency identification systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7750791B2 (en) 2003-11-20 2010-07-06 Telecom Italia S.P.A. Method of and apparatus for long distance reading of passive tags in radio frequency identification systems

Also Published As

Publication number Publication date
JPS5840843B2 (en) 1983-09-08

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