JPS5779712A - Tracking antenna - Google Patents

Tracking antenna

Info

Publication number
JPS5779712A
JPS5779712A JP15553180A JP15553180A JPS5779712A JP S5779712 A JPS5779712 A JP S5779712A JP 15553180 A JP15553180 A JP 15553180A JP 15553180 A JP15553180 A JP 15553180A JP S5779712 A JPS5779712 A JP S5779712A
Authority
JP
Japan
Prior art keywords
terminals
different phase
branch line
line coupler
signals
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
JP15553180A
Other languages
Japanese (ja)
Inventor
Hiroshi Ushigome
Teruo Furuya
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 JP15553180A priority Critical patent/JPS5779712A/en
Publication of JPS5779712A publication Critical patent/JPS5779712A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
    • H01Q25/02—Antennas or antenna systems providing at least two radiating patterns providing sum and difference patterns

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)

Abstract

PURPOSE:To achieve power feeding smoothly, by locating a microstrip antenna and branch line coupler corresponding to 4-division aperture on the same board. CONSTITUTION:A branch line coupler 4 is so constructed that the circumferential length is circular equal to wavelength and an output can be picked up with different phase of 90 deg., and a desired output can be obtained by selecting the line impedance. From a signal inputted to one terminal, signals with 1/2 amplitude and different phase of 90 deg. are obtained at adjacent terminals, and unbalanced signal components are produced at remaining terminals. When signals with different phase of 90 deg. are inputted to the two terminals, the sum and difference of the input are respectively at other terminals. Through the adoption of the branch line coupler 4, a power feeding circuit to a microstrip line antenna 2 can be constituted on one side of a plane.
JP15553180A 1980-11-05 1980-11-05 Tracking antenna Pending JPS5779712A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15553180A JPS5779712A (en) 1980-11-05 1980-11-05 Tracking antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15553180A JPS5779712A (en) 1980-11-05 1980-11-05 Tracking antenna

Publications (1)

Publication Number Publication Date
JPS5779712A true JPS5779712A (en) 1982-05-19

Family

ID=15608100

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15553180A Pending JPS5779712A (en) 1980-11-05 1980-11-05 Tracking antenna

Country Status (1)

Country Link
JP (1) JPS5779712A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0738332A (en) * 1993-07-23 1995-02-07 Nec Corp Simple monopulse tracking antenna
JP2012175329A (en) * 2011-02-21 2012-09-10 Institute Of National Colleges Of Technology Japan Power feeding matrix circuit and phased array antenna employing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0738332A (en) * 1993-07-23 1995-02-07 Nec Corp Simple monopulse tracking antenna
JP2012175329A (en) * 2011-02-21 2012-09-10 Institute Of National Colleges Of Technology Japan Power feeding matrix circuit and phased array antenna employing the same

Similar Documents

Publication Publication Date Title
JPS6480101A (en) Phase shifter
FI860977A0 (en) ANTENN FOER RADIOSAENDARE OCH -MOTTAGARE.
JPS54116860A (en) Variable power distributor
JPS5679504A (en) Frequency converter
ES8506413A1 (en) Input circuit having at least two input paths.
JPS5779712A (en) Tracking antenna
JPS5779706A (en) Sleeve antenna
JPS55134507A (en) Frequency converter
JPS5745703A (en) Output frequency stabilizing circuit for microwave oscillator
JPS5754402A (en) Phase inversion type variable attenuator
JPS5728403A (en) Circular polarized wave generator
JPS56169402A (en) Frequency converting circuit
JPS57196602A (en) Small sized loop antenna for plurality of feeding points
JPS5686375A (en) Doppler radar capable of discrimination of direction
JPS57107651A (en) Receiver for circular polarized electromagnetic wave
JPS56111301A (en) Impedance matching device
JPS5779710A (en) Antenna device
JPS54157066A (en) Pulse width modulation output amplifying circuit
JPS56122510A (en) Receiving antenna system
JPS54143044A (en) Power distributor/synthesizer
JPS56103502A (en) Feeding circuit of array antenna
JPS57196610A (en) Amplitude suppressing circuit
JPS5538706A (en) Balanced microstrip antenna
JPS5511630A (en) Radio receiver
Savchenko The frequency dependence of the input impedance of a diode in a frequency multiplier.