JPS57154907A - Electronic scanning antenna - Google Patents

Electronic scanning antenna

Info

Publication number
JPS57154907A
JPS57154907A JP4018581A JP4018581A JPS57154907A JP S57154907 A JPS57154907 A JP S57154907A JP 4018581 A JP4018581 A JP 4018581A JP 4018581 A JP4018581 A JP 4018581A JP S57154907 A JPS57154907 A JP S57154907A
Authority
JP
Japan
Prior art keywords
phase
shifters
side lobe
controlled
equal
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
JP4018581A
Other languages
Japanese (ja)
Other versions
JPH044764B2 (en
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 JP4018581A priority Critical patent/JPS57154907A/en
Publication of JPS57154907A publication Critical patent/JPS57154907A/en
Publication of JPH044764B2 publication Critical patent/JPH044764B2/ja
Granted 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

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

PURPOSE:To reduce the side lobe by giving the specific control to the input signal phase and the phase shift degree of a phase shifter and at the same time to suppress the rise of the side lobe by carrying out the switching to an equal phase line when the beam is at the front for an electronic scanning antenna using plural phase shifters. 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. At the same time, the signals of a transmitter 7 and a receiver 8 are applied to the shifters 2a-2n via a transmission/reception switch 6 through phase controllers 9a-9n to control the main beam direction. The input signal phase of the phase shifter 2 is controlled 9 as shown by the expressionI, and the phase shift degree is controlled 5 like the expression II. The marks of the expressionIand II are defined as the formula III. Thus the side lobe of a specified direction due to the equalized phase error can be reduced. Furthermore the controllers 9a-9n are switched to equal phase lines 12a-12n when the beam is at the front to set the phase shift degrees of the shifters 2a- 2n at an equal phase. Thus the rise of the side lobe can be suppressed.
JP4018581A 1981-03-19 1981-03-19 Electronic scanning antenna Granted JPS57154907A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4018581A JPS57154907A (en) 1981-03-19 1981-03-19 Electronic scanning antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4018581A JPS57154907A (en) 1981-03-19 1981-03-19 Electronic scanning antenna

Publications (2)

Publication Number Publication Date
JPS57154907A true JPS57154907A (en) 1982-09-24
JPH044764B2 JPH044764B2 (en) 1992-01-29

Family

ID=12573716

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4018581A Granted JPS57154907A (en) 1981-03-19 1981-03-19 Electronic scanning antenna

Country Status (1)

Country Link
JP (1) JPS57154907A (en)

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

Also Published As

Publication number Publication date
JPH044764B2 (en) 1992-01-29

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