GB1136158A - Improvements in or relating to waveguide filters - Google Patents
Improvements in or relating to waveguide filtersInfo
- Publication number
- GB1136158A GB1136158A GB53635/66A GB5363566A GB1136158A GB 1136158 A GB1136158 A GB 1136158A GB 53635/66 A GB53635/66 A GB 53635/66A GB 5363566 A GB5363566 A GB 5363566A GB 1136158 A GB1136158 A GB 1136158A
- Authority
- GB
- United Kingdom
- Prior art keywords
- waveguide
- sections
- section
- filter
- screws
- 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
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
- H01P1/219—Evanescent mode filters
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
1,136,158. Waveguide filters. STANDARD TELEPHONES & CABLES Ltd. 30 Nov., 1966, No. 53635/66. Addition to 1,129,185. Heading H1W. An H-mode bandpass waveguide filter comprises a section or sections 3 of waveguide loaded with ferrimagnetic material 4 which is subject to a transverse magnetic field Hdc such that only an evanescent wave can propagate, and means for terminating the sections in a capacitive reactance which at the centre frequency of the band is the conjugate of the positive imaginary characteristic impedance of the section. The loaded sections 3 are connected at either end to standard waveguides 1, 2. The effect of the field Hdc is to produce negative effective permeability in the ferrite 4 whereby the effective width of the waveguide is reduced to a value below the cut-off width. The sections l and half-sections l/2 appear as pure inductances and are tuned by the adjustable capacitances provided by screws 5. In a modification (Fig. 8, not shown), the screws are replaced by irises. In another form of the filter, a single section of evanescent waveguide is terminated by a short-circuited stub of length sufficient to provide the required capacitive reactance. Such a filter section may be coupled as a shunt or series stub to a conventional rectangular waveguide.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB53635/66A GB1136158A (en) | 1966-06-10 | 1966-11-30 | Improvements in or relating to waveguide filters |
US681637A US3639862A (en) | 1966-06-10 | 1967-11-09 | Waveguide filter utilizing evanescent waveguide, with tunable ferrite loading |
DE19671541939 DE1541939C3 (en) | 1966-11-30 | 1967-11-17 | Filter resonance circuit, especially bandpass for H waves |
ES347787A ES347787A2 (en) | 1966-06-10 | 1967-11-29 | Waveguide filter utilizing evanescent waveguide, with tunable ferrite loading |
CH1679767A CH496331A (en) | 1966-06-10 | 1967-11-29 | H-wave waveguide bandpass filter |
FR130350A FR94324E (en) | 1966-06-10 | 1967-11-30 | Improvements to waveguide filters |
BE707294D BE707294A (en) | 1966-06-10 | 1967-11-30 | |
NL6716345A NL6716345A (en) | 1966-06-10 | 1967-11-30 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB25966/66A GB1129185A (en) | 1966-06-10 | 1966-06-10 | Improvements in or relating to waveguide filters |
GB53635/66A GB1136158A (en) | 1966-06-10 | 1966-11-30 | Improvements in or relating to waveguide filters |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1136158A true GB1136158A (en) | 1968-12-11 |
Family
ID=26257971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB53635/66A Expired GB1136158A (en) | 1966-06-10 | 1966-11-30 | Improvements in or relating to waveguide filters |
Country Status (7)
Country | Link |
---|---|
US (1) | US3639862A (en) |
BE (1) | BE707294A (en) |
CH (1) | CH496331A (en) |
ES (1) | ES347787A2 (en) |
FR (1) | FR94324E (en) |
GB (1) | GB1136158A (en) |
NL (1) | NL6716345A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112397853A (en) * | 2020-10-28 | 2021-02-23 | 中国电子科技集团公司第二十九研究所 | Waveguide flange capable of realizing quick assembling, disassembling and sealing and connecting device thereof |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3958194A (en) * | 1975-01-03 | 1976-05-18 | The United States Of America As Represented By The Secretary Of The Navy | Frequency-sensitive attenuator |
FR2539565A1 (en) * | 1983-01-19 | 1984-07-20 | Thomson Csf | TUNABLE HYPERFREQUENCY FILTER WITH DIELECTRIC RESONATORS IN TM010 MODE |
US5440278A (en) * | 1994-03-25 | 1995-08-08 | Bartholomew; Darin | Ferrite system for modulating, phase shifting, or attenuating radio frequency energy |
US6232853B1 (en) | 1999-03-12 | 2001-05-15 | Com Dev Limited | Waveguide filter having asymmetrically corrugated resonators |
US6169466B1 (en) | 1999-05-10 | 2001-01-02 | Com Dev Limited | Corrugated waveguide filter having coupled resonator cavities |
US9190701B2 (en) * | 2012-06-12 | 2015-11-17 | Rs Microwave Company | In-line pseudoelliptic TE01(nδ) mode dielectric resonator filters |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2197123A (en) * | 1937-06-18 | 1940-04-16 | Bell Telephone Labor Inc | Guided wave transmission |
US2816270A (en) * | 1951-06-26 | 1957-12-10 | Bell Telephone Labor Inc | Microwave channel dropping filter pairs |
US2849683A (en) * | 1953-07-31 | 1958-08-26 | Bell Telephone Labor Inc | Non-reciprocal wave transmission |
US2866949A (en) * | 1953-10-29 | 1958-12-30 | Bell Telephone Labor Inc | Microwave circulators, isolators, and branching filters |
BE549333A (en) * | 1955-09-16 | |||
US2920292A (en) * | 1956-08-30 | 1960-01-05 | Bell Telephone Labor Inc | Power saturable wave guide components |
US3013229A (en) * | 1958-11-17 | 1961-12-12 | Bell Telephone Labor Inc | Gyromagnetic microwave filter devices |
NL260120A (en) * | 1960-02-03 | |||
US3237134A (en) * | 1963-03-26 | 1966-02-22 | Gen Electric | Microwave filter |
US3215955A (en) * | 1964-06-01 | 1965-11-02 | Motorola Inc | Waveguide switching by variable tuning of a cavity which shunts a band-pass filter |
GB1157449A (en) * | 1965-08-11 | 1969-07-09 | Nippon Electric Co | Improvements in or relating to a High-Frequency Filter |
-
1966
- 1966-11-30 GB GB53635/66A patent/GB1136158A/en not_active Expired
-
1967
- 1967-11-09 US US681637A patent/US3639862A/en not_active Expired - Lifetime
- 1967-11-29 CH CH1679767A patent/CH496331A/en unknown
- 1967-11-29 ES ES347787A patent/ES347787A2/en not_active Expired
- 1967-11-30 NL NL6716345A patent/NL6716345A/xx unknown
- 1967-11-30 FR FR130350A patent/FR94324E/en not_active Expired
- 1967-11-30 BE BE707294D patent/BE707294A/xx unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112397853A (en) * | 2020-10-28 | 2021-02-23 | 中国电子科技集团公司第二十九研究所 | Waveguide flange capable of realizing quick assembling, disassembling and sealing and connecting device thereof |
Also Published As
Publication number | Publication date |
---|---|
CH496331A (en) | 1970-09-15 |
DE1541939A1 (en) | 1970-08-20 |
NL6716345A (en) | 1968-05-31 |
ES347787A2 (en) | 1969-02-16 |
US3639862A (en) | 1972-02-01 |
DE1541939B2 (en) | 1975-10-30 |
BE707294A (en) | 1968-05-30 |
FR94324E (en) | 1969-08-01 |
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