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GB2246670B - Microstrip coupled lines filters with improved performance - Google Patents

Microstrip coupled lines filters with improved performance

Info

Publication number
GB2246670B
GB2246670B GB9017022A GB9017022A GB2246670B GB 2246670 B GB2246670 B GB 2246670B GB 9017022 A GB9017022 A GB 9017022A GB 9017022 A GB9017022 A GB 9017022A GB 2246670 B GB2246670 B GB 2246670B
Authority
GB
United Kingdom
Prior art keywords
improved performance
coupled lines
microstrip coupled
filters
lines filters
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 - Fee Related
Application number
GB9017022A
Other versions
GB9017022D0 (en
GB2246670A (en
Inventor
Mohammad Reza Moazzam
Abdol Hamid Aghvami
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9017022A priority Critical patent/GB2246670B/en
Publication of GB9017022D0 publication Critical patent/GB9017022D0/en
Publication of GB2246670A publication Critical patent/GB2246670A/en
Application granted granted Critical
Publication of GB2246670B publication Critical patent/GB2246670B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H01P1/20327—Electromagnetic interstage coupling
    • H01P1/20354—Non-comb or non-interdigital filters
    • H01P1/20363—Linear resonators

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
GB9017022A 1990-08-03 1990-08-03 Microstrip coupled lines filters with improved performance Expired - Fee Related GB2246670B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9017022A GB2246670B (en) 1990-08-03 1990-08-03 Microstrip coupled lines filters with improved performance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9017022A GB2246670B (en) 1990-08-03 1990-08-03 Microstrip coupled lines filters with improved performance

Publications (3)

Publication Number Publication Date
GB9017022D0 GB9017022D0 (en) 1990-09-19
GB2246670A GB2246670A (en) 1992-02-05
GB2246670B true GB2246670B (en) 1995-04-12

Family

ID=10680095

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9017022A Expired - Fee Related GB2246670B (en) 1990-08-03 1990-08-03 Microstrip coupled lines filters with improved performance

Country Status (1)

Country Link
GB (1) GB2246670B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR950003713B1 (en) * 1992-05-29 1995-04-17 삼성전자 주식회사 Parallel line bandpass filter
JPH06104608A (en) * 1992-09-24 1994-04-15 Matsushita Electric Ind Co Ltd Filter
FI94298C (en) * 1993-03-03 1995-08-10 Lk Products Oy Method and connection for changing the filter type
KR0164410B1 (en) * 1995-07-21 1999-03-20 김광호 Strip line filter with switching function
KR20010094784A (en) * 2000-04-06 2001-11-03 윤종용 Radio filter of combline structure with capacitor recompense circuit
KR100675393B1 (en) * 2005-02-25 2007-01-29 삼성전자주식회사 Miniaturized parallel coupled line filter using lumped element capacitor and ground and its manufacturing method

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1406933A (en) * 1973-07-27 1975-09-17 Standard Telephones Cables Ltd Electric wave filter
EP0071509A1 (en) * 1981-07-24 1983-02-09 Thomson-Csf Band-pass filter with open-ended linear resonators
US4578656A (en) * 1983-01-31 1986-03-25 Thomson-Csf Microwave microstrip filter with U-shaped linear resonators having centrally located capacitors coupled to ground
US4638271A (en) * 1983-05-31 1987-01-20 Thomson-Csf Method of incrementally adjusting the center frequency of a microstrip-line printed filter by manuevering dielectric layers
US4731596A (en) * 1985-02-27 1988-03-15 Alcatel Thomson Faisceaux Hertziens Band-pass filter for hyperfrequencies
US4757287A (en) * 1987-10-20 1988-07-12 Gte Service Corporation Voltage tunable half wavelength microstrip filter
EP0285503A1 (en) * 1987-03-31 1988-10-05 Thomson-Csf Filter with distributed constant elements associating two kinds of coupling arrangements
US4835499A (en) * 1988-03-09 1989-05-30 Motorola, Inc. Voltage tunable bandpass filter
WO1990004861A1 (en) * 1988-10-18 1990-05-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. A high-frequency band-pass filter
EP0371446A2 (en) * 1988-11-28 1990-06-06 Fujitsu Limited Band pass filter

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1406933A (en) * 1973-07-27 1975-09-17 Standard Telephones Cables Ltd Electric wave filter
EP0071509A1 (en) * 1981-07-24 1983-02-09 Thomson-Csf Band-pass filter with open-ended linear resonators
US4578656A (en) * 1983-01-31 1986-03-25 Thomson-Csf Microwave microstrip filter with U-shaped linear resonators having centrally located capacitors coupled to ground
US4638271A (en) * 1983-05-31 1987-01-20 Thomson-Csf Method of incrementally adjusting the center frequency of a microstrip-line printed filter by manuevering dielectric layers
US4731596A (en) * 1985-02-27 1988-03-15 Alcatel Thomson Faisceaux Hertziens Band-pass filter for hyperfrequencies
EP0285503A1 (en) * 1987-03-31 1988-10-05 Thomson-Csf Filter with distributed constant elements associating two kinds of coupling arrangements
US4757287A (en) * 1987-10-20 1988-07-12 Gte Service Corporation Voltage tunable half wavelength microstrip filter
US4835499A (en) * 1988-03-09 1989-05-30 Motorola, Inc. Voltage tunable bandpass filter
WO1990004861A1 (en) * 1988-10-18 1990-05-03 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. A high-frequency band-pass filter
EP0371446A2 (en) * 1988-11-28 1990-06-06 Fujitsu Limited Band pass filter

Also Published As

Publication number Publication date
GB9017022D0 (en) 1990-09-19
GB2246670A (en) 1992-02-05

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950712