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GB1190547A - Improvements in Electrical Waveguide Arrangements - Google Patents

Improvements in Electrical Waveguide Arrangements

Info

Publication number
GB1190547A
GB1190547A GB01783/69A GB1178369A GB1190547A GB 1190547 A GB1190547 A GB 1190547A GB 01783/69 A GB01783/69 A GB 01783/69A GB 1178369 A GB1178369 A GB 1178369A GB 1190547 A GB1190547 A GB 1190547A
Authority
GB
United Kingdom
Prior art keywords
frequency
waveguide
waveguides
cut
cavity
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
GB01783/69A
Inventor
Richard Finnie Skedd
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
Priority to GB01783/69A priority Critical patent/GB1190547A/en
Priority to US886639A priority patent/US3593210A/en
Priority to DE19702008584 priority patent/DE2008584A1/en
Priority to CH288370A priority patent/CH515625A/en
Priority to FR7007539A priority patent/FR2034666B1/fr
Publication of GB1190547A publication Critical patent/GB1190547A/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
    • H01P1/32—Non-reciprocal transmission devices
    • H01P1/38—Circulators
    • H01P1/383—Junction circulators, e.g. Y-circulators
    • H01P1/39—Hollow waveguide circulators

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

1,190,547. Circulators. STANDARD TELEPHONES & CABLES Ltd. 5 March, 1969, No. 11783/69. Heading H1W. A waveguide junction circulator comprises a central resonant cavity loaded with ferrimagnetic material and waveguide ports having a cut-off frequency above the resonant frequency of the cavity. The three ports 4 of the circulator shown each consist of a length of rectangular waveguide having transverse dimensions such that it is beyond cut-off at the operative frequency. Under these circumstances each section l of waveguide behaves as an inductive reactance and the addition of capacitative tuning screws 6, 7 imparts band-pass properties to the sections. The screws may be replaced by irises, and the waveguides may be circular. The narrow sides of the rectangular waveguides may be loaded with ferrite or garnet 8 and subject to a transverse magnetic field whereby the cut-off frequency of the waveguides may be varied. It is also possible to vary the resonant frequency of the central cavity by means of the bias field H DC .
GB01783/69A 1969-03-05 1969-03-05 Improvements in Electrical Waveguide Arrangements Expired GB1190547A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB01783/69A GB1190547A (en) 1969-03-05 1969-03-05 Improvements in Electrical Waveguide Arrangements
US886639A US3593210A (en) 1969-03-05 1969-12-19 Waveguide junction circulator wherein all modes in each branch arm are evanescent
DE19702008584 DE2008584A1 (en) 1969-03-05 1970-02-24 Waveguide circulator
CH288370A CH515625A (en) 1969-03-05 1970-02-27 Waveguide circulator
FR7007539A FR2034666B1 (en) 1969-03-05 1970-03-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB01783/69A GB1190547A (en) 1969-03-05 1969-03-05 Improvements in Electrical Waveguide Arrangements

Publications (1)

Publication Number Publication Date
GB1190547A true GB1190547A (en) 1970-05-06

Family

ID=9992625

Family Applications (1)

Application Number Title Priority Date Filing Date
GB01783/69A Expired GB1190547A (en) 1969-03-05 1969-03-05 Improvements in Electrical Waveguide Arrangements

Country Status (5)

Country Link
US (1) US3593210A (en)
CH (1) CH515625A (en)
DE (1) DE2008584A1 (en)
FR (1) FR2034666B1 (en)
GB (1) GB1190547A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5769302U (en) * 1980-10-16 1982-04-26
FR2658954B1 (en) * 1990-02-23 1992-10-02 Alcatel Transmission AGILE MICROWAVE FILTER.
DE4433064C1 (en) * 1994-09-16 1995-10-19 Ant Nachrichtentech Impedance-matching arrangement for non-reciprocal ferrite coupler
GB0122172D0 (en) * 2001-09-14 2001-10-31 Quasar Microwave Tech Electromagnetic control devices
CN105659315A (en) * 2013-08-21 2016-06-08 德克萨斯大学系统董事会 Non-reciprocal acoustic devices based on linear or angular momentum biasing
US9520633B2 (en) 2014-03-24 2016-12-13 Apollo Microwaves Ltd. Waveguide circulator configuration and method of using same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH336876A (en) * 1954-11-19 1959-03-15 Philips Nv Transmission system for electromagnetic waves that is permeable to one side
US2972122A (en) * 1958-04-25 1961-02-14 Bell Telephone Labor Inc Nonreciprocal wave transmission
FR1279788A (en) * 1960-02-03 1961-12-22 Western Electric Co Non-reciprocal device for ultra-short waves
US3165711A (en) * 1960-06-10 1965-01-12 Bendix Corp Anisotropic circulator with dielectric posts adjacent the strip line providing discontinuity for minimizing reflections
FR1299945A (en) * 1960-09-10 1962-07-27 Philips Nv Directional resonance isolator
NL303018A (en) * 1963-12-31 1965-10-25
US3286201A (en) * 1966-04-29 1966-11-15 Melabs Ferrite circulator having three mutually coupled coils coupled to the ferrite material
US3492601A (en) * 1967-12-21 1970-01-27 Bell Telephone Labor Inc Three port e-plane waveguide circulator

Also Published As

Publication number Publication date
FR2034666B1 (en) 1974-05-03
CH515625A (en) 1971-11-15
US3593210A (en) 1971-07-13
DE2008584A1 (en) 1971-02-11
FR2034666A1 (en) 1970-12-11

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee