EP0173545A3 - Crystalline alumina loaded cavity resonator - Google Patents

Crystalline alumina loaded cavity resonator Download PDF

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Publication number
EP0173545A3
EP0173545A3 EP85305945A EP85305945A EP0173545A3 EP 0173545 A3 EP0173545 A3 EP 0173545A3 EP 85305945 A EP85305945 A EP 85305945A EP 85305945 A EP85305945 A EP 85305945A EP 0173545 A3 EP0173545 A3 EP 0173545A3
Authority
EP
European Patent Office
Prior art keywords
lid
crystalline alumina
resonator
alumina loaded
cavity resonator
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.)
Withdrawn
Application number
EP85305945A
Other languages
German (de)
French (fr)
Other versions
EP0173545A2 (en
Inventor
David Gerald Blair
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.)
University of Western Australia
Original Assignee
University of Western Australia
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 University of Western Australia filed Critical University of Western Australia
Publication of EP0173545A2 publication Critical patent/EP0173545A2/en
Publication of EP0173545A3 publication Critical patent/EP0173545A3/en
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/10—Dielectric resonators
    • 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

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

Abstract

This invention describes a crystalline alumina loaded cav­ ity resonator which has low loss and high frequency stability such that its frequency is well-defined and only weakly per­ turbed by temperature, pressure and mechanical changes in its environment. Basically the resonator is a single crystal of sap­ phire (1) having protusions (2) and (2′) fitting closely into re­ cesses in the base (3) and lid (3′) of a niobium housing. The lid (3′) is clamped by groove (4) and having a indium seal to seal the lid (3′) to the side walls (5) at groove (6) in lid (3′). A micro­ wave probe (7) is used to couple microwave power into the cavity through hole (8).
EP85305945A 1984-08-21 1985-08-21 Crystalline alumina loaded cavity resonator Withdrawn EP0173545A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU669284 1984-08-21
AU6692/84 1984-08-21

Publications (2)

Publication Number Publication Date
EP0173545A2 EP0173545A2 (en) 1986-03-05
EP0173545A3 true EP0173545A3 (en) 1986-09-10

Family

ID=3697271

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85305945A Withdrawn EP0173545A3 (en) 1984-08-21 1985-08-21 Crystalline alumina loaded cavity resonator

Country Status (3)

Country Link
EP (1) EP0173545A3 (en)
JP (1) JPS61112402A (en)
DE (1) DE173545T1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2620281A1 (en) * 1987-09-04 1989-03-10 Radiotechnique Compelec HYPERFREQUENCE OSCILLATOR WITH DIELECTRIC RESONATOR, STABLE IN RELATION TO MECHANICAL VIBRATION
FR2646022B1 (en) * 1989-04-13 1991-06-07 Alcatel Espace DIELECTRIC RESONATOR FILTER
DE4316334A1 (en) * 1993-05-15 1994-11-17 Forschungsgesellschaft Fuer In Dielectric resonator
GB9526343D0 (en) * 1995-12-22 1996-02-21 Cohen A N Improved sintered material
DE19824997C2 (en) * 1998-06-05 2003-01-09 Forschungszentrum Juelich Gmbh Multipole bandpass filter with elliptical filter characteristics
SE517744C2 (en) * 2000-10-20 2002-07-09 Ericsson Telefon Ab L M cavity
US8031036B2 (en) * 2008-10-15 2011-10-04 Com Dev International Ltd. Dielectric resonator and filter with low permittivity material
CN103716977A (en) * 2014-01-06 2014-04-09 中国原子能科学研究院 High-mechanical-strength high-frequency resonant cavity
WO2016096971A1 (en) 2014-12-19 2016-06-23 Dsm Ip Assets B.V. Process for enzymatic hydrolysis of lignocellulosic material and fermentation of sugars

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1284491B (en) * 1967-06-27 1968-12-05 Telefunken Patent Cavity resonator and process for its manufacture
US4028652A (en) * 1974-09-06 1977-06-07 Murata Manufacturing Co., Ltd. Dielectric resonator and microwave filter using the same
GB2129228A (en) * 1982-10-01 1984-05-10 Murata Manufacturing Co Dielectric resonator

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1284491B (en) * 1967-06-27 1968-12-05 Telefunken Patent Cavity resonator and process for its manufacture
US4028652A (en) * 1974-09-06 1977-06-07 Murata Manufacturing Co., Ltd. Dielectric resonator and microwave filter using the same
GB2129228A (en) * 1982-10-01 1984-05-10 Murata Manufacturing Co Dielectric resonator

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
IEEE PROCEEDINGS SECTION AAI, vol. 129, no. 4, part H, August 1982, pages 183-187, Old Working, Surrey, GB; C. VEDRENNE et al.: "Whispering-gallery modes of dielectric resonators" *
IEEE TRANSACTIONS ON MAGNETICS, vol. MAG-17, no. 1, January 1981, pages 955-957, IEEE, New York, US; V.B. BRAGINSKII et al.: "The properties of superconducting resonators on sapphire" *
J. PHYSICS E, vol. 10, no. 12, 1977, pages 1193-1207; A. SEPTIER et al: "Microwave applications of superconducting materials" *

Also Published As

Publication number Publication date
EP0173545A2 (en) 1986-03-05
JPS61112402A (en) 1986-05-30
DE173545T1 (en) 1986-09-25

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Inventor name: BLAIR, DAVID GERALD