GB1485505A - Microwave circuits with stripline - Google Patents
Microwave circuits with striplineInfo
- Publication number
- GB1485505A GB1485505A GB47668/74A GB4766874A GB1485505A GB 1485505 A GB1485505 A GB 1485505A GB 47668/74 A GB47668/74 A GB 47668/74A GB 4766874 A GB4766874 A GB 4766874A GB 1485505 A GB1485505 A GB 1485505A
- Authority
- GB
- United Kingdom
- Prior art keywords
- stripline
- resonators
- filter
- resonant
- frequency
- 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
Links
- WSMQKESQZFQMFW-UHFFFAOYSA-N 5-methyl-pyrazole-3-carboxylic acid Chemical compound CC1=CC(C(O)=O)=NN1 WSMQKESQZFQMFW-UHFFFAOYSA-N 0.000 abstract 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 abstract 1
- 229910002113 barium titanate Inorganic materials 0.000 abstract 1
- 239000004020 conductor Substances 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 125000006850 spacer group Chemical group 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
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
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
- H01P1/20309—Strip line filters with dielectric resonator
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
1485505 Filters WESTERN ELECTRIC CO Inc 4 Nov 1974 [8 Nov 1973] 47668/74 Heading H1W A microwave filter comprises at least one dielectric resonator asymmetrically positioned with respect to a stripline in order to maximize the coupling between the stripline and the resonant TE 01 delta mode of the resonator. The resonators may be discs made of a barium titanate composition Ba 2 Ti 9 O 20 or of a lithium tantalate composition, these having desirable temperature coefficients of resonant frequency. The sign of this coefficient may be opposite to that of the dielectric substrate of the stripline or that of the filter housing, whereby temperature compensation is provided. In the multi-section filter of Figs. 4, 5, three resonant discs 41, 51, 61 rest on accurately-machined dielectric spacers 25 above a stripline conductor 44. The centres of the resonators are laterally displaced from the centre-line of the stripline. The resonators may be coupled, as shown, by striplines of length equal to an odd number of quarter-wavelengths at midband frequency. Alternatively, the stripline may be absent except at the input and output and the resonators directly coupled one to the next. The filter has a band rejection characteristic. A bandpass filter may be constructed by inserting the above-described filter in a waveguide dimensioned below cut-off for the operative frequency range. In such an arrangement, propagation is obtained only near the resonant frequency of the resonators.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00413907A US3840828A (en) | 1973-11-08 | 1973-11-08 | Temperature-stable dielectric resonator filters for stripline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1485505A true GB1485505A (en) | 1977-09-14 |
Family
ID=23639156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB47668/74A Expired GB1485505A (en) | 1973-11-08 | 1974-11-04 | Microwave circuits with stripline |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US3840828A (en) |
| JP (1) | JPS587082B2 (en) |
| CA (1) | CA1005536A (en) |
| DE (1) | DE2452743C2 (en) |
| FR (1) | FR2251127B1 (en) |
| GB (1) | GB1485505A (en) |
| NL (1) | NL177641C (en) |
| SE (1) | SE400144B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2601787A1 (en) * | 1975-01-22 | 1976-07-29 | Thomson Csf | MILLIMETER SHIFTING |
| GB2234399A (en) * | 1989-06-21 | 1991-01-30 | Murata Manufacturing Co | Dielectric filter |
| GB2431523A (en) * | 2004-01-28 | 2007-04-25 | Ykc Corp | Bandpass filter for differential signals suitable for use with antenna feeds |
Families Citing this family (42)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH552304A (en) * | 1973-07-19 | 1974-07-31 | Patelhold Patentverwertung | FILTER FOR ELECTROMAGNETIC WAVES. |
| JPS5127757A (en) * | 1974-09-02 | 1976-03-08 | Hitachi Ltd | |
| US4028643A (en) * | 1976-05-12 | 1977-06-07 | University Of Illinois Foundation | Waveguide having strip dielectric structure |
| JPS52153359A (en) * | 1976-06-14 | 1977-12-20 | Murata Manufacturing Co | Dielectric resonator |
| JPS6047764B2 (en) * | 1977-01-21 | 1985-10-23 | ソニー株式会社 | Integrated circuit microwave oscillator |
| US4079341A (en) * | 1977-03-01 | 1978-03-14 | Bell Telephone Laboratories, Incorporated | Microwave oscillator having feedback coupled through a dielectric resonator |
| JPS5423448A (en) * | 1977-07-25 | 1979-02-22 | Toshiba Corp | Microwave filter |
| US4124830A (en) * | 1977-09-27 | 1978-11-07 | Bell Telephone Laboratories, Incorporated | Waveguide filter employing dielectric resonators |
| US4184133A (en) * | 1977-11-28 | 1980-01-15 | Rockwell International Corporation | Assembly of microwave integrated circuits having a structurally continuous ground plane |
| FR2431773A1 (en) * | 1978-07-21 | 1980-02-15 | Thomson Csf | MICROWAVE FILTER WITH DIELECTRIC RESONATORS AND TELECOMMUNICATIONS EQUIPMENT PROVIDED WITH SUCH A FILTER |
| JPS5553907A (en) * | 1978-10-17 | 1980-04-19 | Hitachi Ltd | Microwave oscillator |
| US4241322A (en) * | 1979-09-24 | 1980-12-23 | Bell Telephone Laboratories, Incorporated | Compact microwave filter with dielectric resonator |
| JPS5823408U (en) * | 1981-08-07 | 1983-02-14 | アルプス電気株式会社 | microwave oscillator |
| FR2511548A1 (en) * | 1981-08-14 | 1983-02-18 | Thomson Csf | COAXIAL STRUCTURE TAPE FILTER |
| US4477785A (en) * | 1981-12-02 | 1984-10-16 | Communications Satellite Corporation | Generalized dielectric resonator filter |
| JPS58120301A (en) * | 1982-01-12 | 1983-07-18 | Sony Corp | Band pass filter |
| US4593460A (en) * | 1983-12-30 | 1986-06-10 | Motorola, Inc. | Method to achieve a desired bandwidth at a given frequency in a dielectric resonator filter |
| US4568894A (en) * | 1983-12-30 | 1986-02-04 | Motorola, Inc. | Dielectric resonator filter to achieve a desired bandwidth characteristic |
| US4559490A (en) * | 1983-12-30 | 1985-12-17 | Motorola, Inc. | Method for maintaining constant bandwidth over a frequency spectrum in a dielectric resonator filter |
| JPS60250702A (en) * | 1984-05-25 | 1985-12-11 | Murata Mfg Co Ltd | Resonator having case |
| JPS6170404U (en) * | 1984-10-12 | 1986-05-14 | ||
| US4575699A (en) * | 1984-11-23 | 1986-03-11 | Tektronix, Inc. | Dielectric resonator frequency selective network |
| JPS61121379U (en) * | 1985-01-16 | 1986-07-31 | ||
| JPS61121380U (en) * | 1985-01-16 | 1986-07-31 | ||
| US4682131A (en) * | 1985-06-07 | 1987-07-21 | Motorola Inc. | High-Q RF filter with printed circuit board mounting temperature compensated and impedance matched helical resonators |
| JPS63500134A (en) * | 1985-07-08 | 1988-01-14 | スペイス・システムズ・ローラル・インコーポレイテッド | Narrowband bandpass dielectric resonator filter |
| JPH055689Y2 (en) * | 1985-07-15 | 1993-02-15 | ||
| US4667172A (en) * | 1986-04-07 | 1987-05-19 | Motorola, Inc. | Ceramic transmitter combiner with variable electrical length tuning stub and coupling loop interface |
| US4646038A (en) * | 1986-04-07 | 1987-02-24 | Motorola, Inc. | Ceramic resonator filter with electromagnetic shielding |
| JPS6393201A (en) * | 1986-10-07 | 1988-04-23 | Nec Corp | Dielectric resonator band-pass filter |
| US4940955A (en) * | 1989-01-03 | 1990-07-10 | Motorola, Inc. | Temperature compensated stripline structure |
| JPH0341802A (en) * | 1989-07-07 | 1991-02-22 | Ngk Spark Plug Co Ltd | Temperature compensation type microwave strip line filter |
| GB9002120D0 (en) * | 1990-01-31 | 1990-03-28 | Marconi Co Ltd | Dielectric resonant oscillator |
| US5191304A (en) * | 1990-03-02 | 1993-03-02 | Orion Industries, Inc. | Bandstop filter having symmetrically altered or compensated quarter wavelength transmission line sections |
| US5065119A (en) * | 1990-03-02 | 1991-11-12 | Orion Industries, Inc. | Narrow-band, bandstop filter |
| FI88979C (en) * | 1990-12-17 | 1993-07-26 | Telenokia Oy | highfrequency bandpass filter |
| CA2073272C (en) * | 1991-07-08 | 1997-04-01 | Kenjiro Higaki | Microwave resonator of compound oxide superconductor material |
| US6362708B1 (en) | 1998-05-21 | 2002-03-26 | Lucix Corporation | Dielectric resonator tuning device |
| US6011446A (en) * | 1998-05-21 | 2000-01-04 | Delphi Components, Inc. | RF/microwave oscillator having frequency-adjustable DC bias circuit |
| JP2000151228A (en) | 1998-11-09 | 2000-05-30 | Murata Mfg Co Ltd | Resonator device, oscillator, filter, duplexer and communication device |
| CN103633402B (en) * | 2013-12-16 | 2016-08-17 | 华为技术有限公司 | Duplexer and there is the communication system of this duplexer |
| BR112019011001B1 (en) | 2016-11-29 | 2024-01-30 | Huawei Technologies Co., Ltd | FILTER AND COMMUNICATIONS DEVICE |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2264978A1 (en) * | 1971-12-09 | 1976-02-12 | Rca Corp | FOUR-POLE NETWORK FOR MICROWAVES |
-
1973
- 1973-11-08 US US00413907A patent/US3840828A/en not_active Expired - Lifetime
-
1974
- 1974-07-31 CA CA206,057A patent/CA1005536A/en not_active Expired
- 1974-10-28 SE SE7413536A patent/SE400144B/en not_active IP Right Cessation
- 1974-11-04 FR FR7436602A patent/FR2251127B1/fr not_active Expired
- 1974-11-04 NL NLAANVRAGE7414351,A patent/NL177641C/en not_active IP Right Cessation
- 1974-11-04 GB GB47668/74A patent/GB1485505A/en not_active Expired
- 1974-11-07 DE DE2452743A patent/DE2452743C2/en not_active Expired
- 1974-11-08 JP JP49128154A patent/JPS587082B2/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2601787A1 (en) * | 1975-01-22 | 1976-07-29 | Thomson Csf | MILLIMETER SHIFTING |
| GB2234399A (en) * | 1989-06-21 | 1991-01-30 | Murata Manufacturing Co | Dielectric filter |
| US5079528A (en) * | 1989-06-21 | 1992-01-07 | Murata Manufacturing Co. Ltd. | Dielectric filter |
| GB2234399B (en) * | 1989-06-21 | 1993-12-15 | Murata Manufacturing Co | Dielectric filter |
| GB2431523A (en) * | 2004-01-28 | 2007-04-25 | Ykc Corp | Bandpass filter for differential signals suitable for use with antenna feeds |
| GB2431523B (en) * | 2004-01-28 | 2007-09-19 | Ykc Corp | Bandpass filter for differential signal,and multifrequency antenna provided with same |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2452743A1 (en) | 1975-05-22 |
| US3840828A (en) | 1974-10-08 |
| SE7413536L (en) | 1975-05-09 |
| DE2452743C2 (en) | 1987-11-12 |
| NL177641C (en) | 1985-10-16 |
| SE400144B (en) | 1978-03-13 |
| JPS587082B2 (en) | 1983-02-08 |
| FR2251127A1 (en) | 1975-06-06 |
| CA1005536A (en) | 1977-02-15 |
| NL177641B (en) | 1985-05-17 |
| NL7414351A (en) | 1975-05-12 |
| JPS5081043A (en) | 1975-07-01 |
| FR2251127B1 (en) | 1978-11-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19941103 |