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GB496647A - Improvements in or relating to electric high frequency signalling systems - Google Patents

Improvements in or relating to electric high frequency signalling systems

Info

Publication number
GB496647A
GB496647A GB12481/37A GB1248137A GB496647A GB 496647 A GB496647 A GB 496647A GB 12481/37 A GB12481/37 A GB 12481/37A GB 1248137 A GB1248137 A GB 1248137A GB 496647 A GB496647 A GB 496647A
Authority
GB
United Kingdom
Prior art keywords
relating
high frequency
electric high
signalling systems
transmitter
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
Application number
GB12481/37A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB12481/37A priority Critical patent/GB496647A/en
Priority to US203244A priority patent/US2267445A/en
Priority to FR837377D priority patent/FR837377A/en
Publication of GB496647A publication Critical patent/GB496647A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/38—Impedance-matching networks

Landscapes

  • Transmitters (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)

Abstract

496,647. Wireless signalling. CORK, E. C., and PAWSEY, J. L. May 1, 1937, No. 12481. [Class 40 (v)] The length, which may be zero, of a feeder 4 is so calculated that the variation of the impedance of the aerial 5 over a band of frequencies, as viewed from the transmitter or receiver 2, 3<1>, is substantially opposite in sense and equal in value to the variation in impedance of the transmitter or receiver itself over said band of frequencies. Auto-transformer coupling, as shown, may be used between the transmitter or receiver, and the feeder or aerial. Specification 469,245 is referred to.
GB12481/37A 1937-05-01 1937-05-01 Improvements in or relating to electric high frequency signalling systems Expired GB496647A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB12481/37A GB496647A (en) 1937-05-01 1937-05-01 Improvements in or relating to electric high frequency signalling systems
US203244A US2267445A (en) 1937-05-01 1938-04-21 Electric high frequency signaling system
FR837377D FR837377A (en) 1937-05-01 1938-04-29 Improvements to high frequency electrical signaling systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB12481/37A GB496647A (en) 1937-05-01 1937-05-01 Improvements in or relating to electric high frequency signalling systems

Publications (1)

Publication Number Publication Date
GB496647A true GB496647A (en) 1938-12-01

Family

ID=10005388

Family Applications (1)

Application Number Title Priority Date Filing Date
GB12481/37A Expired GB496647A (en) 1937-05-01 1937-05-01 Improvements in or relating to electric high frequency signalling systems

Country Status (3)

Country Link
US (1) US2267445A (en)
FR (1) FR837377A (en)
GB (1) GB496647A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2634371A (en) * 1953-04-07 Multichannel antenna system
US2512704A (en) * 1943-12-06 1950-06-27 Int Standard Electric Corp Arrangement for coupling wide frequency band antennae to transmission lines
GB615722A (en) * 1945-08-10 1949-01-11 Standard Telephones Cables Ltd Improvements in or relating to electric antennae
US2536329A (en) * 1946-11-23 1951-01-02 Ferris Instr Lab Apparatus for receiving electrical alternating field effects
US2754482A (en) * 1949-01-29 1956-07-10 Emi Ltd Band-pass circuit arrangements
US2660710A (en) * 1951-07-09 1953-11-24 Bendix Aviat Corp High-frequency coupling system
US2756393A (en) * 1952-10-03 1956-07-24 Philco Corp Constant bandwidth coupling system
US2989626A (en) * 1959-10-30 1961-06-20 Welch Glenn Antenna, transmitter and coupling arrangement
GB1118235A (en) * 1965-11-23 1968-06-26 Tateisi Electronics Company A proximity switch

Also Published As

Publication number Publication date
US2267445A (en) 1941-12-23
FR837377A (en) 1939-02-08

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