JPS54134956A - Te21 mode coupler of directional-coupler type - Google Patents

Te21 mode coupler of directional-coupler type

Info

Publication number
JPS54134956A
JPS54134956A JP4297078A JP4297078A JPS54134956A JP S54134956 A JPS54134956 A JP S54134956A JP 4297078 A JP4297078 A JP 4297078A JP 4297078 A JP4297078 A JP 4297078A JP S54134956 A JPS54134956 A JP S54134956A
Authority
JP
Japan
Prior art keywords
mode
coupler
sub
waveguide
coupling elements
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
JP4297078A
Other languages
Japanese (ja)
Inventor
Takashi Kadowaki
Shunichiro Kawabata
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 JP4297078A priority Critical patent/JPS54134956A/en
Publication of JPS54134956A publication Critical patent/JPS54134956A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/16—Auxiliary devices for mode selection, e.g. mode suppression or mode promotion; for mode conversion

Landscapes

  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)

Abstract

PURPOSE:To obtain a directional-coupler type TE21 mode coupler which can measure accurately the generation quantity of a TE21 mode, by providing two columns of coupling elements symmetrically on the axis of a cylindrical main waveguide. CONSTITUTION:Coupling elements 2a and 2b are provided symmetrically on the axis of cylindrical waveguide 1 in two lines, and then coupled with sub-waveguides 3a and 3b respectively. Coupling elements are provided where the magnetic-field component in the TE21 mode is the largest. When the magnetic-field component of the TE21 mode coupling with coupling elements is denoted by A while that of the TE11 mode is by B, magnetic fields of both TE21 and TE11 modes come out of phase (A-B) in sub-waveguide 3a and come in phase in sub-waveguide 3b, so that the magnetic-field component of (A+B) will be coupled. Only the TE21 mode can therefore be obtained by applying waves to sub-waveguides 3a and 3b via a hybrid circuit such as magic T.
JP4297078A 1978-04-12 1978-04-12 Te21 mode coupler of directional-coupler type Pending JPS54134956A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4297078A JPS54134956A (en) 1978-04-12 1978-04-12 Te21 mode coupler of directional-coupler type

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4297078A JPS54134956A (en) 1978-04-12 1978-04-12 Te21 mode coupler of directional-coupler type

Publications (1)

Publication Number Publication Date
JPS54134956A true JPS54134956A (en) 1979-10-19

Family

ID=12650884

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4297078A Pending JPS54134956A (en) 1978-04-12 1978-04-12 Te21 mode coupler of directional-coupler type

Country Status (1)

Country Link
JP (1) JPS54134956A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742317A (en) * 1986-05-23 1988-05-03 General Electric Company Mode coupler for monopulse antennas and the like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742317A (en) * 1986-05-23 1988-05-03 General Electric Company Mode coupler for monopulse antennas and the like

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