GB627513A - Improvements in or relating to cavity resonators - Google Patents

Improvements in or relating to cavity resonators

Info

Publication number
GB627513A
GB627513A GB30271/46A GB3027146A GB627513A GB 627513 A GB627513 A GB 627513A GB 30271/46 A GB30271/46 A GB 30271/46A GB 3027146 A GB3027146 A GB 3027146A GB 627513 A GB627513 A GB 627513A
Authority
GB
United Kingdom
Prior art keywords
disc
mode
resonator
chamber
gap
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
GB30271/46A
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.)
AT&T Corp
Original Assignee
Western Electric Co Inc
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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of GB627513A publication Critical patent/GB627513A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/06—Cavity resonators

Landscapes

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

Abstract

627,513. Electric resonators. WESTERN ELECTRIC CO., Inc. Oct. 10, 1946, No. 30271. Convention date, May 12, 1945. [Class 40 (viii)] A hollow cylindrical resonator has a tuning piston which leaves a gap between its outer edge and the chamber wall which permits oscillations of a TM1 mode to pass behind the piston into a part of the resonator with high resistance walls that attenuate these waves. The resonator comprises a chamber 11 of aluminium with an interior plating of silver. A plated disc 14 mounted on an adjusting stem 13 varies the mid-band frequency of the cavity which is cyclically varied by a plate 23 moved by an eccentric 20. A coupling loop 25 excites the resonator in a TE mode and an output loop 27 is also provided. A gap 29 between disc 23 and the chamber 11 does not affect the particular TE mode but tends to attenuate and change the frequency of undesired TM modes that are inevitably set up. In addition, the chamber 11 is not provided with a highly conductive plating behind the disc 23 so that there is marked energy dissipation by the TM modes which set up currents across the gap. Apertures in the form of slots or holes may be made in disc 23 in regions of weak field for the desired TE mode to aid further in suppressing the undesired modes. Similar construction may also be employed in connection with disc 14.
GB30271/46A 1945-05-12 1946-10-10 Improvements in or relating to cavity resonators Expired GB627513A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US593508A US2593234A (en) 1945-05-12 1945-05-12 Cavity resonator

Publications (1)

Publication Number Publication Date
GB627513A true GB627513A (en) 1949-08-10

Family

ID=24374990

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30271/46A Expired GB627513A (en) 1945-05-12 1946-10-10 Improvements in or relating to cavity resonators

Country Status (3)

Country Link
US (1) US2593234A (en)
FR (1) FR938844A (en)
GB (1) GB627513A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2720630A (en) * 1947-10-24 1955-10-11 Bell Telephone Labor Inc Orifice coupling for high q cavities
DE952830C (en) * 1953-03-29 1956-11-22 Telefunken Gmbh Cavity resonator
US2813251A (en) * 1953-10-28 1957-11-12 Western Electric Co Wave meters
US3030594A (en) * 1955-01-06 1962-04-17 Varian Associates High frequency tunable cavity apparatus
US3237131A (en) * 1957-01-16 1966-02-22 Varian Associates Mode suppressor apparatus
US2967261A (en) * 1957-03-29 1961-01-03 Litton Ind Of California Tuner for high frequency electron discharge devices
US2944233A (en) * 1958-10-16 1960-07-05 Hewlett Packard Co Cavity resonator and oscillation generator
US3088082A (en) * 1959-10-05 1963-04-30 Philco Corp Bandpass waveguide filter having iris and posts for resonating fundamental and vanes for absorbing harmonics
DE1211298B (en) * 1963-10-28 1966-02-24 Philips Patentverwaltung Tunable waveguide resonator for high-frequency electrical oscillations
US3538466A (en) * 1968-11-14 1970-11-03 Rca Corp Television tuner cast housing with integrally cast transmission lines
FR2038783A5 (en) * 1969-03-28 1971-01-08 Thomson Csf
DE2658543C2 (en) * 1976-12-23 1985-08-01 Távközlési Kutató Intézet, Budapest Coaxial or cavity resonator
IT1068037B (en) * 1976-12-24 1985-03-21 Sits Soc It Telecom Siemens RESONER FOR MICROWAVE SYSTEMS WITH REDUCED INSERTION LOSSES
KR20170014828A (en) * 2015-07-31 2017-02-08 한국전자통신연구원 Microwave tunable filter using dual-mode

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2151118A (en) * 1935-10-30 1939-03-21 Bell Telephone Labor Inc Termination for dielectric guides
US2088749A (en) * 1935-10-30 1937-08-03 Bell Telephone Labor Inc Reception of guided waves
US2197122A (en) * 1937-06-18 1940-04-16 Bell Telephone Labor Inc Guided wave transmission
US2253589A (en) * 1938-08-06 1941-08-26 George C Southworth Generation and transmission of high frequency oscillations
US2203806A (en) * 1938-08-31 1940-06-11 Rca Corp Concentric line
US2323201A (en) * 1939-01-07 1943-06-29 Rca Corp Tuned circuit and associated devices therefor
US2439388A (en) * 1941-12-12 1948-04-13 Sperry Corp Resonator wave meter
US2405277A (en) * 1943-12-02 1946-08-06 Philco Radio & Television Corp Tuning apparatus
US2471419A (en) * 1944-07-07 1949-05-31 Bell Telephone Labor Inc Tunable resonant cavity with adjustable walls
BE468394A (en) * 1945-01-31

Also Published As

Publication number Publication date
FR938844A (en) 1948-10-26
US2593234A (en) 1952-04-15

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