GB517052A - High frequency transmission networks - Google Patents

High frequency transmission networks

Info

Publication number
GB517052A
GB517052A GB31442/38A GB3144238A GB517052A GB 517052 A GB517052 A GB 517052A GB 31442/38 A GB31442/38 A GB 31442/38A GB 3144238 A GB3144238 A GB 3144238A GB 517052 A GB517052 A GB 517052A
Authority
GB
United Kingdom
Prior art keywords
impedance
line
frequency transmission
network
isolate
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
GB31442/38A
Other languages
English (en)
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB517052A publication Critical patent/GB517052A/en
Expired 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
    • H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation

Landscapes

  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
GB31442/38A 1937-11-16 1938-10-31 High frequency transmission networks Expired GB517052A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US174759A US2226686A (en) 1937-11-16 1937-11-16 High frequency transmission network

Publications (1)

Publication Number Publication Date
GB517052A true GB517052A (en) 1940-01-18

Family

ID=22637408

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31442/38A Expired GB517052A (en) 1937-11-16 1938-10-31 High frequency transmission networks

Country Status (4)

Country Link
US (1) US2226686A (fr)
DE (1) DE932025C (fr)
FR (1) FR49942E (fr)
GB (1) GB517052A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB579778A (en) * 1943-11-05 1946-08-15 Standard Telephones Cables Ltd Improvements relating to radio antennae
US2512704A (en) * 1943-12-06 1950-06-27 Int Standard Electric Corp Arrangement for coupling wide frequency band antennae to transmission lines
US2644928A (en) * 1948-06-09 1953-07-07 Rca Corp Directional transmission line transducer
NL180280B (nl) * 1952-08-02 Euteco Impianti Spa Werkwijze voor het bereiden van een katalysator op basis van molybdeen- en ijzeroxyde voor de oxydatie van methanol tot formaldehyde.
GB888901A (en) * 1959-07-23 1962-02-07 Gen Electric Co Ltd Improvements in or relating to four-terminal phase equaliser electric networks
US4999642A (en) * 1988-03-01 1991-03-12 Wells Donald H Transmission line coupling device with closed impedance matching loop
US5083136A (en) * 1989-11-16 1992-01-21 Wells Donald H Transmission line coupling device with closed impedance matching loop
US5463405A (en) * 1994-05-20 1995-10-31 Valor Enterprises, Inc. Cellular telephone coupling network

Also Published As

Publication number Publication date
US2226686A (en) 1940-12-31
DE932025C (de) 1955-08-22
FR49942E (fr) 1939-09-25

Similar Documents

Publication Publication Date Title
GB487282A (en) Improvements in or relating to high frequency transmitting arrangements
GB549948A (en) Carrier frequency telephone system
GB517052A (en) High frequency transmission networks
GB493235A (en) Improvements in or relating to electrical high frequency transmission lines
GB506518A (en) Improvements in or relating to short wave transmitting aerial systems
FR874350A (fr) Dispositif émetteur ou récepteur comportant une antenne dipôle
GB586262A (en) Radio wave-signal receiving system
GB674333A (en) Improvements in transformers and networks for tapping or branching cables carrying two or more frequency bands
GB488254A (en) Improvements in or relating to electrical wave filters
GB817962A (en) Electrical filter networks
GB613741A (en) Improvements in or relating to radio and other transmitting and receiving systems
GB523074A (en) Improvements in or relating to radio receiving systems
GB515710A (en) Improvements in or relating to aerial systems for wireless receivers
GB608991A (en) Improvements relating to wired radio signalling systems
GB532274A (en) Improvements in or relating to coupling arrangements for lecher lines
GB776755A (en) Electrical filter network
GB519631A (en) Improvements in or relating to television systems
GB384747A (en) Improvements in or relating to electric telecommunication systems
GB241567A (en) Means for coupling high frequency telegraphic and telephonic apparatus to high voltage long distance lines
GB563520A (en) Improvements in or relating to electrical apparatus including networks suitable for use for dual signal transmission
GB473896A (en) Improvements in or relating to radio receivers
FR704443A (fr) émission et réception sans fil d'oscillations à basse fréquence
GB520782A (en) Improvements in and relating to aerial systems for radio receivers
GB271911A (en) Improvements in or relating to the reception of electrical oscillations
GB649587A (en) Passive impedance matching network