GB609231A - Improvements in or relating to electric wave filter devices - Google Patents
Improvements in or relating to electric wave filter devicesInfo
- Publication number
- GB609231A GB609231A GB54546A GB54546A GB609231A GB 609231 A GB609231 A GB 609231A GB 54546 A GB54546 A GB 54546A GB 54546 A GB54546 A GB 54546A GB 609231 A GB609231 A GB 609231A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reactances
- short
- relating
- line
- wave filter
- 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
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/202—Coaxial filters
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
609,231. Wave filters. JAMES, G. S. Jan. 7, 1946, No. 545. [Class 40 (viii)] Reactances such as resonant circuits 11, 17 and 18, which may be connected at quarterwave intervals in shunt to a coaxial or twinconductor transmission line to form a bandpass or band-stop filter. In a band-stop filter, each comprise a short-circuited outer coaxial stub 12, 14, slightly longer than a quarter of a wavelength, and a short-circuited inner coaxial stub 14, 13, slightly shorter than a quarter of a wavelength, the open-end reactances of the two together forming a series-resonant circuit in shunt across the line. The middle cylinder 14 and the short-circuiting pistons 15, 16, may be adjustable, Fig. 3 (not shown). Reactances may be similarly connected across a twinconductor line.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB54546A GB609231A (en) | 1946-01-07 | 1946-01-07 | Improvements in or relating to electric wave filter devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB54546A GB609231A (en) | 1946-01-07 | 1946-01-07 | Improvements in or relating to electric wave filter devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB609231A true GB609231A (en) | 1948-09-28 |
Family
ID=9706243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB54546A Expired GB609231A (en) | 1946-01-07 | 1946-01-07 | Improvements in or relating to electric wave filter devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB609231A (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2677809A (en) * | 1949-10-10 | 1954-05-04 | Int Standard Electric Corp | Electrical wave filter |
US2686903A (en) * | 1951-05-29 | 1954-08-17 | Rca Corp | Tunable ultrahigh-frequency band pass filters |
US2713152A (en) * | 1950-06-28 | 1955-07-12 | Rca Corp | Vestigial side band filter |
DE950132C (en) * | 1954-04-06 | 1956-10-04 | Siemens Ag | Resonator built from a waveguide or a coaxial conductor with adjustable tuning |
US2816270A (en) * | 1951-06-26 | 1957-12-10 | Bell Telephone Labor Inc | Microwave channel dropping filter pairs |
DE1128576B (en) * | 1952-11-27 | 1962-04-26 | Siemens Ag | Resettable filter circuit consisting of coaxial lines |
EP0013223A1 (en) * | 1978-12-29 | 1980-07-09 | Thomson-Csf | Harmonics filtration device for a radio transmitter |
DE3632254A1 (en) * | 1986-09-23 | 1988-04-07 | Elekluft Elektronik Und Luftfa | Tunable multiple rejection filter |
CN105070992A (en) * | 2015-08-19 | 2015-11-18 | 成都九洲迪飞科技有限责任公司 | Wide-bandpass stop-band filter |
-
1946
- 1946-01-07 GB GB54546A patent/GB609231A/en not_active Expired
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2677809A (en) * | 1949-10-10 | 1954-05-04 | Int Standard Electric Corp | Electrical wave filter |
US2713152A (en) * | 1950-06-28 | 1955-07-12 | Rca Corp | Vestigial side band filter |
US2686903A (en) * | 1951-05-29 | 1954-08-17 | Rca Corp | Tunable ultrahigh-frequency band pass filters |
US2816270A (en) * | 1951-06-26 | 1957-12-10 | Bell Telephone Labor Inc | Microwave channel dropping filter pairs |
DE1128576B (en) * | 1952-11-27 | 1962-04-26 | Siemens Ag | Resettable filter circuit consisting of coaxial lines |
DE950132C (en) * | 1954-04-06 | 1956-10-04 | Siemens Ag | Resonator built from a waveguide or a coaxial conductor with adjustable tuning |
EP0013223A1 (en) * | 1978-12-29 | 1980-07-09 | Thomson-Csf | Harmonics filtration device for a radio transmitter |
US4286238A (en) * | 1978-12-29 | 1981-08-25 | Thomson-Csf | Harmonic filtering device for radio transmitter |
DE3632254A1 (en) * | 1986-09-23 | 1988-04-07 | Elekluft Elektronik Und Luftfa | Tunable multiple rejection filter |
CN105070992A (en) * | 2015-08-19 | 2015-11-18 | 成都九洲迪飞科技有限责任公司 | Wide-bandpass stop-band filter |
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