GB1426702A - Superconductive microwave filter - Google Patents

Superconductive microwave filter

Info

Publication number
GB1426702A
GB1426702A GB782874A GB782874A GB1426702A GB 1426702 A GB1426702 A GB 1426702A GB 782874 A GB782874 A GB 782874A GB 782874 A GB782874 A GB 782874A GB 1426702 A GB1426702 A GB 1426702A
Authority
GB
United Kingdom
Prior art keywords
filter
plates
line
cryostat
stripline
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
GB782874A
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.)
Thepault E L
Original Assignee
Thepault E L
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
Priority to FR7305932A priority Critical patent/FR2220929B1/fr
Application filed by Thepault E L filed Critical Thepault E L
Priority to GB782774A priority patent/GB1421311A/en
Priority to FR7405801A priority patent/FR2261656A2/en
Priority to GB782874A priority patent/GB1426702A/en
Priority to US444140A priority patent/US3875538A/en
Priority to US00444103A priority patent/US3857114A/en
Priority to DE2408634A priority patent/DE2408634C3/en
Priority to FR7405776A priority patent/FR2261655A2/en
Publication of GB1426702A publication Critical patent/GB1426702A/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
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/203—Strip line filters
    • H01P1/2039—Galvanic coupling between Input/Output
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/08—Strip line resonators
    • H01P7/084—Triplate line resonators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S505/00—Superconductor technology: apparatus, material, process
    • Y10S505/825—Apparatus per se, device per se, or process of making or operating same
    • Y10S505/866—Wave transmission line, network, waveguide, or microwave storage device

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

1426702 Stripline microwave filters R MINET J DEBEAU and E L THEPAULT 20 Feb 1974 7828/74 Heading H1W A superconductive stripline filter is provided with remotely-adjustable dielectric tuning pads such that the filter can be tuned whilst inside a cryostat. The stripline is of the balanced or sandwiched" " type comprising two symmetrically arranged ground planes. The invention is applicable in particular to the filter described in Specification 1,421,311. As shown a line conductor pattern 89 made of lead is arranged between dielectric plates 59, 80, of, e.g. PTFE, which are, in turn, surrounded by ground plates 57, 58 of, e.g. lead or niobium. The filter is enclosed in a casing 51, 52, 83, 84 of aluminium and plates 55, 56 of a material having a low coefficient of thermal expansion, e.g. Invar (a Registered Trade Mark), are inserted between the casing and the ground plates. The filter configuration consists of a main transmission line and three evenly spaced half-wave resonant stubs attached to the main line at their approximate mid points. Dielectric tuning pads 36, 38, 37, 39, 43, 44 are associated with either end of each of the stubs and are arranged to slide in grooves provided in the dielectric plates 59, 80. A mechanism for remotely operating the pads, consisting of lead screws and sliding cross-heads, is described in detail (Figs. 4, 6, not shown). The lead screws and input/output coaxial line are brought out through the closure of the cryostat. Each screw is provided with an adjusting button and a rev. counter. The cryostat is charged with liquid helium which is confined to an annular cylinder surrounding an inner space for the filter. In a modified version of the filter circuit, resonant sections L 1 , L 2 , L 3 , L 4 spaced by capacitive gaps S 1 , S 2 , S 3 , S 4 , Fig. 2, are used. The line is arranged in a rectangular U-configuration so that the input and output are at the same end of the filter assembly.
GB782874A 1973-02-20 1974-02-20 Superconductive microwave filter Expired GB1426702A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
FR7305932A FR2220929B1 (en) 1973-02-20 1973-02-20
GB782774A GB1421311A (en) 1973-02-20 1974-02-20 Microwave bandpass filter
FR7405801A FR2261656A2 (en) 1973-02-20 1974-02-20 Super-conductive microwave filter - with several line band resonators in cryostat structure
GB782874A GB1426702A (en) 1973-02-20 1974-02-20 Superconductive microwave filter
US444140A US3875538A (en) 1973-02-20 1974-02-20 Microwave bandpass filter
US00444103A US3857114A (en) 1973-02-20 1974-02-20 Superconductive microwave filter
DE2408634A DE2408634C3 (en) 1973-02-20 1974-02-20 Microwave filters
FR7405776A FR2261655A2 (en) 1973-02-20 1974-02-20 Microwave line band filter - with central conductor inserted between two dielectric sheets

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
FR7305932A FR2220929B1 (en) 1973-02-20 1973-02-20
GB782774A GB1421311A (en) 1973-02-20 1974-02-20 Microwave bandpass filter
GB782874A GB1426702A (en) 1973-02-20 1974-02-20 Superconductive microwave filter
US444140A US3875538A (en) 1973-02-20 1974-02-20 Microwave bandpass filter
US00444103A US3857114A (en) 1973-02-20 1974-02-20 Superconductive microwave filter
DE2408634A DE2408634C3 (en) 1973-02-20 1974-02-20 Microwave filters

Publications (1)

Publication Number Publication Date
GB1426702A true GB1426702A (en) 1976-03-03

Family

ID=27544221

Family Applications (2)

Application Number Title Priority Date Filing Date
GB782874A Expired GB1426702A (en) 1973-02-20 1974-02-20 Superconductive microwave filter
GB782774A Expired GB1421311A (en) 1973-02-20 1974-02-20 Microwave bandpass filter

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB782774A Expired GB1421311A (en) 1973-02-20 1974-02-20 Microwave bandpass filter

Country Status (4)

Country Link
US (2) US3875538A (en)
DE (1) DE2408634C3 (en)
FR (1) FR2220929B1 (en)
GB (2) GB1426702A (en)

Families Citing this family (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2541569A1 (en) * 1975-09-18 1977-03-31 Licentia Gmbh Frequency dependent attenuator for directional aerial system - has one shorted feeder shunting input and output gate and parallel open circuit feeder
US4020429A (en) * 1976-02-12 1977-04-26 Motorola, Inc. High power radio frequency tunable circuits
JPS5566101A (en) * 1978-11-13 1980-05-19 Sony Corp Microwave circuit
DE3422899A1 (en) * 1984-06-20 1986-01-02 Siemens AG, 1000 Berlin und 8000 München Planar circuit structure constructed as a filter circuit
US4918050A (en) * 1988-04-04 1990-04-17 Motorola, Inc. Reduced size superconducting resonator including high temperature superconductor
US4914407A (en) * 1988-06-07 1990-04-03 Board Of Regents, University Of Texas System Crosstie overlay slow-wave structure and components made thereof for monolithic integrated circuits and optical modulators
US5015976A (en) * 1988-11-11 1991-05-14 Matsushita Electric Industrial Co., Ltd. Microwave filter
JPH02152302A (en) * 1988-12-02 1990-06-12 Fujitsu Ltd Double wave blocking circuit
US5270872A (en) * 1989-07-20 1993-12-14 The United States Of America As Represented By The Secretary Of The Air Force Superconducting submicron filter
US5161068A (en) * 1989-07-20 1992-11-03 The United States Of America As Represented By The Secretary Of The Air Force Superconducting searching filter
US5142418A (en) * 1989-07-20 1992-08-25 The Unites States Of America As Represented By The Secretary Of The Air Force Superconducting tunable inorganic filter
US5155634A (en) * 1989-07-20 1992-10-13 The United States Of America As Represented By The Secretary Of The Air Force Superconducting reflection filter
DE3932846A1 (en) * 1989-10-02 1991-04-11 Holger Dipl Ing Altmaier Radio interference filter - has symmetrical conductor system with centre strip and side branches embedded in resinous material which absorbs HF energy
JPH03286601A (en) * 1990-04-03 1991-12-17 Res Dev Corp Of Japan Microwave resonator
US5164358A (en) * 1990-10-22 1992-11-17 Westinghouse Electric Corp. Superconducting filter with reduced electromagnetic leakage
US5406233A (en) * 1991-02-08 1995-04-11 Massachusetts Institute Of Technology Tunable stripline devices
US6335622B1 (en) * 1992-08-25 2002-01-01 Superconductor Technologies, Inc. Superconducting control elements for RF antennas
CA2073272C (en) * 1991-07-08 1997-04-01 Kenjiro Higaki Microwave resonator of compound oxide superconductor material
US5291161A (en) * 1991-07-22 1994-03-01 Matsushita Electric Industrial Co., Ltd. Microwave band-pass filter having frequency characteristic of insertion loss steeply increasing on one outside of pass-band
US5281934A (en) * 1992-04-09 1994-01-25 Trw Inc. Common input junction, multioctave printed microwave multiplexer
US5484764A (en) * 1992-11-13 1996-01-16 Space Systems/Loral, Inc. Plural-mode stacked resonator filter including superconductive material resonators
GB9408665D0 (en) * 1994-04-30 1994-06-22 Hunter Ian C Electrical filters
DE4441488A1 (en) * 1994-11-22 1996-05-23 Bosch Gmbh Robert Superconductor band filter
US6178339B1 (en) * 1995-04-11 2001-01-23 Matsushita Electric Industrial Co., Ltd. Wireless communication filter operating at low temperature
FI110392B (en) * 1995-09-26 2003-01-15 Solitra Oy Coaxial resonator filter, method of producing a coaxial resonator filter, coaxial resonator structure and method of producing a coaxial resonator structure
US5751199A (en) * 1996-01-16 1998-05-12 Trw Inc. Combline multiplexer with planar common junction input
JPH10215102A (en) * 1997-01-30 1998-08-11 Nec Corp Micro strip band inhibition filter
JP2000151207A (en) * 1998-11-12 2000-05-30 Mitsubishi Electric Corp Low pass filter
JP3379471B2 (en) * 1999-04-19 2003-02-24 株式会社村田製作所 Transmission line, resonator, filter, duplexer, and communication device
JP3759693B2 (en) * 2000-12-11 2006-03-29 シャープ株式会社 Noise filter and high-frequency transmitter using the same
US6677830B2 (en) * 2001-09-11 2004-01-13 Triquint Technology Holding Co. Broadband matching network for an electroabsorption optical modulator
JP2010220139A (en) * 2009-03-19 2010-09-30 Fujitsu Ltd Filter, filtering method, and communication device
CN101997149B (en) * 2009-08-25 2013-06-19 智捷科技股份有限公司 Electromagnetic interference eliminator with bandpass filtering function
JP2014241482A (en) * 2013-06-11 2014-12-25 パナソニックＩｐマネジメント株式会社 Microwave circuit
FR3029368B1 (en) * 2014-11-27 2018-04-06 Time Reversal Communications FILTERING DEVICE AND FILTERING ASSEMBLY WITH STRUCTURE OF ELECTRICALLY CONDUCTIVE BANDS
US20170245361A1 (en) * 2016-01-06 2017-08-24 Nokomis, Inc. Electronic device and methods to customize electronic device electromagnetic emissions
RU2675206C1 (en) * 2018-02-07 2018-12-17 Федеральное государственное бюджетное научное учреждение "Федеральный исследовательский центр "Красноярский научный центр Сибирского отделения Российской академии наук" Microstrip broadband band-pass filter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2532993A (en) * 1945-06-21 1950-12-05 Rca Corp Band-pass filter
US3345589A (en) * 1962-12-14 1967-10-03 Bell Telephone Labor Inc Transmission line type microwave filter

Also Published As

Publication number Publication date
GB1421311A (en) 1976-01-14
DE2408634B2 (en) 1977-08-18
DE2408634C3 (en) 1978-04-13
US3875538A (en) 1975-04-01
FR2220929B1 (en) 1976-06-11
FR2220929A1 (en) 1974-10-04
US3857114A (en) 1974-12-24
DE2408634A1 (en) 1975-08-21

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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