JPH057882B2 - - Google Patents

Info

Publication number
JPH057882B2
JPH057882B2 JP56018711A JP1871181A JPH057882B2 JP H057882 B2 JPH057882 B2 JP H057882B2 JP 56018711 A JP56018711 A JP 56018711A JP 1871181 A JP1871181 A JP 1871181A JP H057882 B2 JPH057882 B2 JP H057882B2
Authority
JP
Japan
Prior art keywords
frequency
rectangular
pattern
incident wave
selective surface
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.)
Expired - Lifetime
Application number
JP56018711A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57132402A (en
Inventor
Ikuo Sato
Susumu Tamagawa
Ryuichi Iwata
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.)
NEC Corp
Original Assignee
Nippon Electric Co Ltd
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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP1871181A priority Critical patent/JPS57132402A/ja
Priority to US06/346,818 priority patent/US4476471A/en
Priority to CA000395754A priority patent/CA1198811A/en
Priority to EP82100938A priority patent/EP0059343B2/en
Priority to DE8282100938T priority patent/DE3271093D1/de
Publication of JPS57132402A publication Critical patent/JPS57132402A/ja
Publication of JPH057882B2 publication Critical patent/JPH057882B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/04—Coupling devices of the waveguide type with variable factor of coupling

Landscapes

  • Aerials With Secondary Devices (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
JP1871181A 1981-02-09 1981-02-10 High-frequency branching device Granted JPS57132402A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1871181A JPS57132402A (en) 1981-02-10 1981-02-10 High-frequency branching device
US06/346,818 US4476471A (en) 1981-02-09 1982-02-08 Antenna apparatus including frequency separator having wide band transmission or reflection characteristics
CA000395754A CA1198811A (en) 1981-02-09 1982-02-08 Antenna apparatus including frequency separator having wide band transmission or reflection characteristics
EP82100938A EP0059343B2 (en) 1981-02-09 1982-02-09 Antenna apparatus including frequency separator having wide band transmission or reflection characteristics
DE8282100938T DE3271093D1 (en) 1981-02-09 1982-02-09 Antenna apparatus including frequency separator having wide band transmission or reflection characteristics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1871181A JPS57132402A (en) 1981-02-10 1981-02-10 High-frequency branching device

Publications (2)

Publication Number Publication Date
JPS57132402A JPS57132402A (en) 1982-08-16
JPH057882B2 true JPH057882B2 (enrdf_load_stackoverflow) 1993-01-29

Family

ID=11979231

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1871181A Granted JPS57132402A (en) 1981-02-09 1981-02-10 High-frequency branching device

Country Status (1)

Country Link
JP (1) JPS57132402A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10866227B2 (en) * 2014-02-03 2020-12-15 Goldin-Rudahl Systems, Inc. Early warning system for road, runway, and railway failures

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES=1970 *
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES=1971 *

Also Published As

Publication number Publication date
JPS57132402A (en) 1982-08-16

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