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GB1390809A - Electrical networks for use at high frequencies - Google Patents

Electrical networks for use at high frequencies

Info

Publication number
GB1390809A
GB1390809A GB3666572A GB3666572A GB1390809A GB 1390809 A GB1390809 A GB 1390809A GB 3666572 A GB3666572 A GB 3666572A GB 3666572 A GB3666572 A GB 3666572A GB 1390809 A GB1390809 A GB 1390809A
Authority
GB
United Kingdom
Prior art keywords
terminal
loops
resonator
carrier
degrees
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
GB3666572A
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.)
BAE Systems Electronics Ltd
Original Assignee
Marconi 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 Marconi Co Ltd filed Critical Marconi Co Ltd
Priority to GB3666572A priority Critical patent/GB1390809A/en
Priority to NLAANVRAGE7310634,A priority patent/NL179014C/en
Priority to US385291A priority patent/US3886499A/en
Priority to DE19732339441 priority patent/DE2339441C3/en
Publication of GB1390809A publication Critical patent/GB1390809A/en
Expired 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
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
    • H01P1/2138—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using hollow waveguide filters

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)

Abstract

1390809 Constant-resistance coupling circuits MARCONI CO Ltd 18 July 1973 [5 Aug 1972] 36665/72 Heading H1W A constant-resistance coupling circuit comprises a resonator 5 and two loops 14, 15 arranged in planes normal to the direction of propagation with both ends (1 and 2; 3 and 4) connected to the inner conductors of different co-axial terminals. The resonator is e.g. of length #/2 and may be of square or circular section. The angular separation of the loops may be other than 180 degrees, e.g. it may be 90 degrees. If the loops are correctly terminated, at the resonant frequency of the cavity, terminal 1 is isolated from terminal 3 and coupled exclusively to terminal 4. At frequencies remote from resonance, terminal 1 is increasingly coupled to terminal 2, and 3 to 4. The circuit may be used to combine a sound carrier with a vision carrier at output terminal 4. A sound carrier at the resonant frequency is applied to input 1 and a vision carrier at frequency offresonance to input 3. The resonator is tuned by conductive stubs (12, 13, Fig. 1, not shown). The curved lines indicate the rotating electric field set up in the cavity by the loops.
GB3666572A 1972-08-05 1972-08-05 Electrical networks for use at high frequencies Expired GB1390809A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB3666572A GB1390809A (en) 1972-08-05 1972-08-05 Electrical networks for use at high frequencies
NLAANVRAGE7310634,A NL179014C (en) 1972-08-05 1973-08-01 ELECTRICAL NETWORK WITH CONSTANT RESISTANCE CONTAINING MICROWAVE VIBRATION.
US385291A US3886499A (en) 1972-08-05 1973-08-03 High frequency electrical network with frequency dependent characteristics having a constant input resistance
DE19732339441 DE2339441C3 (en) 1972-08-05 1973-08-03 Frequency-dependent coupling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3666572A GB1390809A (en) 1972-08-05 1972-08-05 Electrical networks for use at high frequencies

Publications (1)

Publication Number Publication Date
GB1390809A true GB1390809A (en) 1975-04-16

Family

ID=10390169

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3666572A Expired GB1390809A (en) 1972-08-05 1972-08-05 Electrical networks for use at high frequencies

Country Status (3)

Country Link
US (1) US3886499A (en)
GB (1) GB1390809A (en)
NL (1) NL179014C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0171279A2 (en) * 1984-08-10 1986-02-12 GEC-MARCONI LIMITED (No. 53403 - formerly THE MARCONI COMPANY LIMITED) High frequency electrical network
DE4119362A1 (en) * 1991-06-12 1992-12-17 Leybold Ag PARTICLE SOURCE, ESPECIALLY FOR REACTIVE ION NETWORK AND PLASMA SUPPORTED CVD PROCESSES
US5389890A (en) * 1992-08-20 1995-02-14 Gec-Marconi Limited Combiners for R.F. power amplifiers

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1605120A (en) * 1978-04-11 1981-12-16 Marconi Co Ltd Electrical networks for use at high frequencies
DE102007019447B4 (en) * 2007-04-25 2009-05-07 Spinner Gmbh High frequency device with low dielectric losses

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2357313A (en) * 1940-10-01 1944-09-05 Rca Corp High frequency resonator and circuit therefor
US2357314A (en) * 1941-01-04 1944-09-05 Rca Corp Cavity resonator circuit
US2420354A (en) * 1941-01-10 1947-05-13 Rca Corp Coupling circuit
US2476311A (en) * 1943-02-01 1949-07-19 Sperry Corp Ultra high frequency discriminator and apparatus
US2609450A (en) * 1946-04-30 1952-09-02 Harold C Early Radio frequency wattmeter
US2795763A (en) * 1951-05-03 1957-06-11 Bell Telephone Labor Inc Microwave filters
FR1079880A (en) * 1953-03-23 1954-12-03 Resonant directional couplers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0171279A2 (en) * 1984-08-10 1986-02-12 GEC-MARCONI LIMITED (No. 53403 - formerly THE MARCONI COMPANY LIMITED) High frequency electrical network
US4660005A (en) * 1984-08-10 1987-04-21 The Marconi Company Limited High frequency electrical network
EP0171279A3 (en) * 1984-08-10 1988-03-30 The Marconi Company Limited High frequency electrical network
DE4119362A1 (en) * 1991-06-12 1992-12-17 Leybold Ag PARTICLE SOURCE, ESPECIALLY FOR REACTIVE ION NETWORK AND PLASMA SUPPORTED CVD PROCESSES
US5389890A (en) * 1992-08-20 1995-02-14 Gec-Marconi Limited Combiners for R.F. power amplifiers

Also Published As

Publication number Publication date
DE2339441B2 (en) 1975-07-24
NL179014C (en) 1986-06-16
NL179014B (en) 1986-01-16
NL7310634A (en) 1974-02-07
DE2339441A1 (en) 1974-02-21
US3886499A (en) 1975-05-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920718