GB2273393B - Multi-passband,dielectric filter construction - Google Patents

Multi-passband,dielectric filter construction

Info

Publication number: GB2273393B
Authority: GB; United Kingdom
Prior art keywords: passband; dielectric filter; filter construction; construction; dielectric
Prior art date: 1992-05-26
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 - Lifetime

Application number

GB9400899A

Other versions

GB9400899D0 (en

GB2273393A (en

Inventor

Darioush Agahi-Kesheh

Zdravko M Zakman

Robert Kenoun

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.)

Motorola Solutions Inc

Original Assignee

Motorola 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.)

1992-05-26

Filing date

1993-04-19

Publication date

1996-09-04

1993-04-19 Application filed by Motorola Inc filed Critical Motorola Inc

1994-04-13 Publication of GB9400899D0 publication Critical patent/GB9400899D0/en

1994-06-15 Publication of GB2273393A publication Critical patent/GB2273393A/en

1996-09-04 Application granted granted Critical

1996-09-04 Publication of GB2273393B publication Critical patent/GB2273393B/en

2013-04-19 Anticipated expiration legal-status Critical

Status Expired - Lifetime 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
- H01P1/205—Comb or interdigital filters; Cascaded coaxial cavities
- H01P1/2056—Comb filters or interdigital filters with metallised resonator holes in a dielectric block

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Control Of Motors That Do Not Use Commutators (AREA)
Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Developing Agents For Electrophotography (AREA)
Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

GB9400899A 1992-05-26 1993-04-19 Multi-passband,dielectric filter construction Expired - Lifetime GB2273393B (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US88808992A	1992-05-26	1992-05-26
PCT/US1993/003693 WO1993024968A1 (en)	1992-05-26	1993-04-19	Multi-passband, dielectric filter construction

Publications (3)

Publication Number	Publication Date
GB9400899D0 GB9400899D0 (en)	1994-04-13
GB2273393A GB2273393A (en)	1994-06-15
GB2273393B true GB2273393B (en)	1996-09-04

Family

ID=25392506

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB9400899A Expired - Lifetime GB2273393B (en)	1992-05-26	1993-04-19	Multi-passband,dielectric filter construction

Country Status (9)

Country	Link
JP (1)	JP3205337B2 (en)
KR (1)	KR970000059B1 (en)
CN (1)	CN1029340C (en)
CA (1)	CA2114029C (en)
FI (1)	FI940399A0 (en)
FR (1)	FR2693037B1 (en)
GB (1)	GB2273393B (en)
IT (1)	IT1261678B (en)
WO (1)	WO1993024968A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4319241A1 (en) *	1993-06-09	1994-12-15	Siemens Matsushita Components	Monolithic microwave ceramic filter
US5502422A (en) *	1994-08-12	1996-03-26	Motorola, Inc.	Filter with an adjustable shunt zero
US5748058A (en) *	1995-02-03	1998-05-05	Teledyne Industries, Inc.	Cross coupled bandpass filter
JP3158963B2 (en) *	1995-05-31	2001-04-23	株式会社村田製作所	Antenna duplexer
JPH10308604A (en) *	1997-03-05	1998-11-17	Murata Mfg Co Ltd	Dielectric filter, dielectric duplexer and designing method therefor
US6087909A (en) *	1996-03-06	2000-07-11	Murata Manufacturing Co., Ltd.	Dielectric filter having at least one stepped resonator hole with an elongated cross-section
ATE280441T1 (en) *	1998-03-18	2004-11-15	Epcos Ag	MICROWAVE CERAMIC FILTER WITH IMPROVED SIDE STEEPNESS
JPH11312902A (en) *	1998-04-30	1999-11-09	Murata Mfg Co Ltd	Dielectric filter, transmission/reception equipment and communication equipment
SE9804353L (en) *	1998-07-08	2000-01-09	Samsung Electro Mech	Dielectric duplexor filter
US6169465B1 (en)	1998-07-08	2001-01-02	Samsung Electro-Mechanics Co., Ltd.	Duplexer dielectric filter
KR100375583B1 (en) *	2000-11-18	2003-03-15	센티스 주식회사	A dielectric filter and duplexer dielectric filter for removing higher-order mode harmonic frequency and for improving skirt and spurious response
JP3788384B2 (en) *	2001-05-30	2006-06-21	株式会社村田製作所	Dielectric filter, dielectric duplexer, and communication device
JP2003318606A (en)	2002-04-23	2003-11-07	Sanyo Electric Co Ltd	Dielectric filter
JP3883902B2 (en)	2002-04-25	2007-02-21	三洋電機株式会社	Dielectric filter
US9202660B2 (en)	2013-03-13	2015-12-01	Teledyne Wireless, Llc	Asymmetrical slow wave structures to eliminate backward wave oscillations in wideband traveling wave tubes
CN103246538B (en) *	2013-05-16	2016-12-28	中国电子科技集团公司第四十一研究所	Make the intelligentized plug-in method of microwave apparatus circuit board

Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4733208A (en) *	1984-08-21	1988-03-22	Murata Manufacturing Co., Ltd.	Dielectric filter having impedance changing means coupling adjacent resonators
US4742562A (en) *	1984-09-27	1988-05-03	Motorola, Inc.	Single-block dual-passband ceramic filter useable with a transceiver
US4879533A (en) *	1988-04-01	1989-11-07	Motorola, Inc.	Surface mount filter with integral transmission line connection
US4954796A (en) *	1986-07-25	1990-09-04	Motorola, Inc.	Multiple resonator dielectric filter
WO1993014532A1 (en) *	1992-01-21	1993-07-22	Motorola, Inc.	Dielectric filter construction

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH01213002A (en) *	1988-02-22	1989-08-25	Fuji Elelctrochem Co Ltd	Dielectric branching filter
US5109536A (en) *	1989-10-27	1992-04-28	Motorola, Inc.	Single-block filter for antenna duplexing and antenna-summed diversity

1993
- 1993-04-19 JP JP50052694A patent/JP3205337B2/en not_active Expired - Lifetime
- 1993-04-19 CA CA002114029A patent/CA2114029C/en not_active Expired - Lifetime
- 1993-04-19 GB GB9400899A patent/GB2273393B/en not_active Expired - Lifetime
- 1993-04-19 KR KR1019940700215A patent/KR970000059B1/en not_active IP Right Cessation
- 1993-04-19 WO PCT/US1993/003693 patent/WO1993024968A1/en active Application Filing
- 1993-05-24 IT ITRM930345A patent/IT1261678B/en active IP Right Grant
- 1993-05-25 CN CN93106228.4A patent/CN1029340C/en not_active Expired - Fee Related
- 1993-05-26 FR FR9306297A patent/FR2693037B1/en not_active Expired - Lifetime
1994
- 1994-01-26 FI FI940399A patent/FI940399A0/en unknown

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4733208A (en) *	1984-08-21	1988-03-22	Murata Manufacturing Co., Ltd.	Dielectric filter having impedance changing means coupling adjacent resonators
US4742562A (en) *	1984-09-27	1988-05-03	Motorola, Inc.	Single-block dual-passband ceramic filter useable with a transceiver
US4954796A (en) *	1986-07-25	1990-09-04	Motorola, Inc.	Multiple resonator dielectric filter
US4879533A (en) *	1988-04-01	1989-11-07	Motorola, Inc.	Surface mount filter with integral transmission line connection
WO1993014532A1 (en) *	1992-01-21	1993-07-22	Motorola, Inc.	Dielectric filter construction

Also Published As

Publication number	Publication date
GB9400899D0 (en)	1994-04-13
KR970000059B1 (en)	1997-01-04
CN1082773A (en)	1994-02-23
JPH06509693A (en)	1994-10-27
ITRM930345A0 (en)	1993-05-24
FR2693037A1 (en)	1993-12-31
CA2114029A1 (en)	1993-12-09
CN1029340C (en)	1995-07-12
WO1993024968A1 (en)	1993-12-09
GB2273393A (en)	1994-06-15
FI940399A (en)	1994-01-26
IT1261678B (en)	1996-05-29
ITRM930345A1 (en)	1994-11-24
JP3205337B2 (en)	2001-09-04
CA2114029C (en)	1997-11-18
FR2693037B1 (en)	1995-08-04
FI940399A0 (en)	1994-01-26

Legal Events

Date	Code	Title	Description
2013-05-08	PE20	Patent expired after termination of 20 years	Expiry date: 20130418

Publication	Publication Date	Title
GB2308236B (en)	1998-01-07	Dielectric filter
EP0510971A3 (en)	1993-05-05	Dielectric filter
AU649140B2 (en)	1994-05-12	Dielectric filter
EP0660435A3 (en)	1996-06-05	Electrical filter.
AU1855192A (en)	1993-01-07	Dielectric filter
GB2249220B (en)	1994-11-30	Dielectric filter construction
GB2269706B (en)	1995-09-20	Dielectric filter construction
GB2276041B (en)	1996-11-13	Dielectric filter
AU1126492A (en)	1992-09-03	Improved bandstop filter
TW317396U (en)	1997-10-01	Dielectric filter
GB2273393B (en)	1996-09-04	Multi-passband,dielectric filter construction
EP0448085A3 (en)	1992-08-05	Dielectric filter
EP0523241A4 (en)	1993-07-07	Dielectric filter
DE59401349D1 (en)	1997-01-30	Filter
GB9305073D0 (en)	1993-04-28	Dielectric resonator filter
EP0467267A3 (en)	1992-10-21	Dielectric filters
GB2272843B (en)	1996-08-14	Filter elements
EP0519080A4 (en)	1993-06-09	Dielectric filter
GB2302453B (en)	1999-08-18	Dielectric filter
GB2279890B (en)	1997-01-29	Filter
AU1484392A (en)	1992-10-15	Dielectric filter
KR100201707B1 (en)	1999-06-15	Dielectric filter
ZA935518B (en)	1994-02-24	Improved filter
DE69400999D1 (en)	1997-01-09	Filter
GB9217470D0 (en)	1992-09-30	Microwave filter