JPS54134957A - Te21 mode detector - Google Patents

Te21 mode detector

Info

Publication number
JPS54134957A
JPS54134957A JP4297178A JP4297178A JPS54134957A JP S54134957 A JPS54134957 A JP S54134957A JP 4297178 A JP4297178 A JP 4297178A JP 4297178 A JP4297178 A JP 4297178A JP S54134957 A JPS54134957 A JP S54134957A
Authority
JP
Japan
Prior art keywords
mode
sub
coupling elements
magnetic
waveguide
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
JP4297178A
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 JP4297178A priority Critical patent/JPS54134957A/en
Publication of JPS54134957A publication Critical patent/JPS54134957A/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

Abstract

PURPOSE:To obtain a directional-coupler type TE21 mode detector which can detect a TE21 mode with high precision, by providing coupling elements in two lines symmetrically on the axis of a cylindrical 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 3b 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 be obtained at terminal 7a by applying waves propagating through sub-waveguides 3a and 3b via magic T7. Further, only the TE11 mode can be obtained at terminal 7b, so that it will be terminated by terminating set 8.
JP4297178A 1978-04-12 1978-04-12 Te21 mode detector Pending JPS54134957A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4297178A JPS54134957A (en) 1978-04-12 1978-04-12 Te21 mode detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4297178A JPS54134957A (en) 1978-04-12 1978-04-12 Te21 mode detector

Publications (1)

Publication Number Publication Date
JPS54134957A true JPS54134957A (en) 1979-10-19

Family

ID=12650914

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4297178A Pending JPS54134957A (en) 1978-04-12 1978-04-12 Te21 mode detector

Country Status (1)

Country Link
JP (1) JPS54134957A (en)

Cited By (2)

* 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
CN108808201A (en) * 2018-06-14 2018-11-13 电子科技大学 A kind of Mode selective directional coupler being used for mould guided wave system

Cited By (2)

* 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
CN108808201A (en) * 2018-06-14 2018-11-13 电子科技大学 A kind of Mode selective directional coupler being used for mould guided wave system

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