DE4290898T1 - - Google Patents

Info

Publication number
DE4290898T1
DE4290898T1 DE4290898T DE4290898T DE4290898T1 DE 4290898 T1 DE4290898 T1 DE 4290898T1 DE 4290898 T DE4290898 T DE 4290898T DE 4290898 T DE4290898 T DE 4290898T DE 4290898 T1 DE4290898 T1 DE 4290898T1
Authority
DE
Germany
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.)
Ceased
Application number
DE4290898T
Inventor
Kesheh D. Buffalo Grove Ill. Us Agahi
Raymond Sokola
Frederick L. Albuquerque N.Mex. Us Sassin
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.)
Filing date
Publication date
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of DE4290898T1 publication Critical patent/DE4290898T1/de
Ceased 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
    • 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
DE4290898T 1991-04-01 1992-03-24 Ceased DE4290898T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/678,419 US5130683A (en) 1991-04-01 1991-04-01 Half wave resonator dielectric filter construction having self-shielding top and bottom surfaces

Publications (1)

Publication Number Publication Date
DE4290898T1 true DE4290898T1 (de) 1993-04-01

Family

ID=24722703

Family Applications (1)

Application Number Title Priority Date Filing Date
DE4290898T Ceased DE4290898T1 (de) 1991-04-01 1992-03-24

Country Status (8)

Country Link
US (1) US5130683A (de)
JP (1) JPH05508067A (de)
KR (1) KR960000137B1 (de)
CA (1) CA2077898C (de)
DE (1) DE4290898T1 (de)
GB (1) GB2260449B (de)
MX (1) MX9201496A (de)
WO (1) WO1992017914A1 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5103197A (en) * 1989-06-09 1992-04-07 Lk-Products Oy Ceramic band-pass filter
FI88440C (fi) * 1991-06-25 1993-05-10 Lk Products Oy Keramiskt filter
JP3293200B2 (ja) * 1992-04-03 2002-06-17 株式会社村田製作所 誘電体共振器
EP0552761B1 (de) * 1992-01-23 1999-07-07 Murata Manufacturing Co., Ltd. Dielektrisches Filter und Herstellungsverfahren dafür
US5218329A (en) * 1992-03-25 1993-06-08 Motorola, Inc. Low profile ceramic filter with self aligning shield
JPH05315807A (ja) * 1992-05-08 1993-11-26 Oki Electric Ind Co Ltd ストリップラインフィルタおよびこれを用いた空中線共用器
US5278527A (en) * 1992-07-17 1994-01-11 Motorola, Inc. Dielectric filter and shield therefor
US5499004A (en) * 1993-03-12 1996-03-12 Matsushita Electric Industrial Co., Ltd. Dielectric filter having interstage coupling using adjacent electrodes
JPH0730305A (ja) * 1993-07-06 1995-01-31 Murata Mfg Co Ltd 誘電体フィルターおよび誘電体フィルターを用いたトランシーバー
US5737696A (en) * 1993-07-06 1998-04-07 Murata Manufacturing Co., Ltd. Dielectric filter having inductive coupling windows between resonators and transceiver using the dielectric filter
JP3239552B2 (ja) * 1993-09-16 2001-12-17 株式会社村田製作所 誘電体共振器装置
JPH0794909A (ja) * 1993-09-20 1995-04-07 Murata Mfg Co Ltd 誘電体共振器
JPH07106805A (ja) * 1993-10-06 1995-04-21 Murata Mfg Co Ltd 誘電体共振器
JP3282351B2 (ja) * 1994-02-17 2002-05-13 株式会社村田製作所 誘電体共振器装置
DE19534158C1 (de) * 1995-09-14 1997-03-13 Siemens Matsushita Components Mikrowellen-Keramikfilter
US5684439A (en) * 1995-10-10 1997-11-04 Motorola, Inc. Half wave ceramic filter with open circuit at both ends
JP3023949B2 (ja) * 1995-12-12 2000-03-21 株式会社村田製作所 誘電体フィルタ
US6154951A (en) * 1997-12-11 2000-12-05 Sanyo Electric Co., Ltd. Dielectric filter and process for producing same
FI113579B (fi) 1998-05-08 2004-05-14 Filtronic Lk Oy Suodatinrakenne ja oskillaatori useiden gigahertsien taajuuksille
FI982551A (fi) * 1998-06-11 1999-12-12 Lk Products Oy Yhtenäisistä kappaleista muodostuva suurtaajuussuodatin
JP3534008B2 (ja) * 1998-10-29 2004-06-07 株式会社村田製作所 誘電体フィルタ、誘電体デュプレクサ及び通信機装置
JP3642276B2 (ja) * 2000-01-20 2005-04-27 株式会社村田製作所 アンテナ装置および通信機
US6806791B1 (en) 2000-02-29 2004-10-19 Radio Frequency Systems, Inc. Tunable microwave multiplexer
US20040085165A1 (en) * 2002-11-05 2004-05-06 Yung-Rung Chung Band-trap filter
US10778261B2 (en) * 2017-06-14 2020-09-15 Harris Corporation Electronic device including radio frequency (RF) filter module with stacked coaxial resonators and related methods
US11437691B2 (en) 2019-06-26 2022-09-06 Cts Corporation Dielectric waveguide filter with trap resonator

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1358980A (en) * 1971-06-15 1974-07-03 Ferranti Ltd Microwave filters
DE3125763A1 (de) * 1980-07-07 1982-04-01 Fujitsu Ltd., Kawasaki, Kanagawa Dielektrisches filter
US4431977A (en) * 1982-02-16 1984-02-14 Motorola, Inc. Ceramic bandpass filter
EP0401839A2 (de) * 1989-06-09 1990-12-12 Lk-Products Oy Keramischer Bandpassfilter

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60114004A (ja) * 1983-11-25 1985-06-20 Murata Mfg Co Ltd 誘電体フィルタの実装構造
JPS64801A (en) * 1986-12-27 1989-01-05 Nippon Chiyoutanpa Kk Cl circuit element and series resonance type band stop filter
JPS63169802A (ja) * 1987-01-08 1988-07-13 Yuniden Kk 誘電体共振器
JPS6453601A (en) * 1987-02-06 1989-03-01 Nippon Chiyoutanpa Kk Band pass filter circuit
US4879533A (en) * 1988-04-01 1989-11-07 Motorola, Inc. Surface mount filter with integral transmission line connection
JP2737253B2 (ja) * 1989-06-01 1998-04-08 富士通株式会社 誘電体フイルタ
JPH04103203A (ja) * 1990-08-22 1992-04-06 Murata Mfg Co Ltd 誘電体フィルタ

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1358980A (en) * 1971-06-15 1974-07-03 Ferranti Ltd Microwave filters
DE3125763A1 (de) * 1980-07-07 1982-04-01 Fujitsu Ltd., Kawasaki, Kanagawa Dielektrisches filter
US4431977A (en) * 1982-02-16 1984-02-14 Motorola, Inc. Ceramic bandpass filter
EP0401839A2 (de) * 1989-06-09 1990-12-12 Lk-Products Oy Keramischer Bandpassfilter

Also Published As

Publication number Publication date
JPH05508067A (ja) 1993-11-11
CA2077898C (en) 1996-10-15
KR960000137B1 (ko) 1996-01-03
US5130683A (en) 1992-07-14
GB2260449B (en) 1995-02-08
GB9225109D0 (en) 1993-02-10
MX9201496A (es) 1992-10-01
KR930700984A (ko) 1993-03-16
WO1992017914A1 (en) 1992-10-15
GB2260449A (en) 1993-04-14

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8125 Change of the main classification

Ipc: H01P 1/205

8131 Rejection