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JPS57154906A - Electronic scanning antenna - Google Patents

Electronic scanning antenna

Info

Publication number
JPS57154906A
JPS57154906A JP4012081A JP4012081A JPS57154906A JP S57154906 A JPS57154906 A JP S57154906A JP 4012081 A JP4012081 A JP 4012081A JP 4012081 A JP4012081 A JP 4012081A JP S57154906 A JPS57154906 A JP S57154906A
Authority
JP
Japan
Prior art keywords
phase
shifters
electronic scanning
scanning antenna
controlled
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
JP4012081A
Other languages
Japanese (ja)
Inventor
Koichi Kitajima
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 JP4012081A priority Critical patent/JPS57154906A/en
Publication of JPS57154906A publication Critical patent/JPS57154906A/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
    • H01Q3/30—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
    • H01Q3/34—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 by electrical means
    • H01Q3/36—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 by electrical means with variable phase-shifters
    • H01Q3/38—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 by electrical means with variable phase-shifters the phase-shifters being digital
    • H01Q3/385—Scan control logics

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

PURPOSE:To reduce the side lobe for an electronic scanning antenna using plural phase shifters, by controlling the input signal phase of the phase shifter to a specific phase by a phase controller and at the same time setting the phase shift degree of each phase shifter at a specific value. CONSTITUTION:Phase shifters 2a-2n are connected to element antennas 1a-1n, and phase shifter driving circuits 3a-3n which are controlled by a control circuit 5 are provided to the shifters 2a-2n. At the same time, the signals of a transmitter 7 and a receiver 8 are applied to phase controllers 9a-9n via a transmission/reception switch 6, and the controlled signals are supplied to the shifters 2a-2n to control the main beam direction of an electronic scanning antenna. In such way, the phase is controlled for the input signal of the phase shifter 2 by means of a controller 9 as shown by the equationI. The marks of expressionIand II are defined as the formula III. As a result, the side lobe caused by the quantized phase error is decentralized to reduce the side lobe which is caused in a specified direction.
JP4012081A 1981-03-19 1981-03-19 Electronic scanning antenna Pending JPS57154906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4012081A JPS57154906A (en) 1981-03-19 1981-03-19 Electronic scanning antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4012081A JPS57154906A (en) 1981-03-19 1981-03-19 Electronic scanning antenna

Publications (1)

Publication Number Publication Date
JPS57154906A true JPS57154906A (en) 1982-09-24

Family

ID=12571960

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4012081A Pending JPS57154906A (en) 1981-03-19 1981-03-19 Electronic scanning antenna

Country Status (1)

Country Link
JP (1) JPS57154906A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59135905A (en) * 1983-01-25 1984-08-04 Mitsubishi Electric Corp Electronic scanning antenna

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5115705A (en) * 1974-07-31 1976-02-07 Toyota Motor Co Ltd Kyukibenojushinai fukunenshoshitsukaranaru nainenkikan
JPS5195703A (en) * 1975-02-19 1976-08-21

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5115705A (en) * 1974-07-31 1976-02-07 Toyota Motor Co Ltd Kyukibenojushinai fukunenshoshitsukaranaru nainenkikan
JPS5195703A (en) * 1975-02-19 1976-08-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59135905A (en) * 1983-01-25 1984-08-04 Mitsubishi Electric Corp Electronic scanning antenna

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