GB627870A - Wave-signal filter system - Google Patents
Wave-signal filter systemInfo
- Publication number
- GB627870A GB627870A GB32744/46A GB3274446A GB627870A GB 627870 A GB627870 A GB 627870A GB 32744/46 A GB32744/46 A GB 32744/46A GB 3274446 A GB3274446 A GB 3274446A GB 627870 A GB627870 A GB 627870A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wires
- coupling
- length
- wave
- aerial
- 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
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/0123—Frequency selective two-port networks comprising distributed impedance elements together with lumped impedance elements
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
627,870. Impedance networks. HAZELTINE CORPORATION. Nov. 4, 1946, No. 32744. Convention date, Nov. 8, 1945. [Class 40 (viii)] A high-frequency filter system comprises a pair of Lecher wires spaced less than #/2#, where # is the operating wave-length and having a length equal to an integral number of quarter wave-lengths, a coupling member being disposed between the wires for unequally distributing over a distance less than half of their length the opposed coupling therebetween caused by the electric and magnetic fields. At the spacing and length chosen the capacitative and inductive coupling between the wires would cancel out if it were not for the coupling member. As shown, signals from an aerial 10 pass to a filter using three wires 13, 14 and 15 forming two pairs grounded at their lower ends. Shields 17 and 18 placed in a position where inductive coupling predominates cause a resultant coupling between the wires which then form a band-pass filter between aerial 10 and element 12. In an alternative construction the wires may be connected by condensers in a region where capacitative coupling predominates. The position of the coupling members and the length of the wires may be adjustable.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US627473A US2527664A (en) | 1945-11-08 | 1945-11-08 | Wave-signal translating system for selected band of wave-signal frequencies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB627870A true GB627870A (en) | 1949-08-17 |
Family
ID=24514772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32744/46A Expired GB627870A (en) | 1945-11-08 | 1946-11-04 | Wave-signal filter system |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2527664A (en) |
| DE (1) | DE825102C (en) |
| FR (1) | FR939388A (en) |
| GB (1) | GB627870A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0423667A1 (en) * | 1989-10-20 | 1991-04-24 | Alcatel Telspace | Microwave band filter of the comb-line type |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2594037A (en) * | 1946-08-28 | 1952-04-22 | Rca Corp | Ultrahigh-frequency filter |
| NL91134C (en) * | 1951-05-23 | |||
| DE1074092B (en) * | 1955-12-28 | 1960-01-28 | Siemens & Halske Aktiengesellschaft, Berlin und München | Delay line with filter characteristics for traveling wave tubes |
| JPS5568702A (en) * | 1978-11-20 | 1980-05-23 | Oki Electric Ind Co Ltd | Dielectric filter |
| EP3691023B1 (en) | 2014-12-15 | 2021-04-28 | CommScope Italy S.r.l. | In-line filter having mutually compensating inductive and capacitive coupling |
| EP3079198A1 (en) * | 2015-04-09 | 2016-10-12 | Alcatel Lucent | A resonator assembly and filter |
| CN111786069B (en) * | 2019-04-04 | 2021-09-21 | 上海诺基亚贝尔股份有限公司 | Resonator and filter |
| US11862835B2 (en) * | 2020-08-13 | 2024-01-02 | Cyntec Co., Ltd. | Dielectric filter with multilayer resonator |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2234584A (en) * | 1935-12-06 | 1941-03-11 | Rca Corp | Short wave reception |
| US2220922A (en) * | 1938-03-17 | 1940-11-12 | Rca Corp | Electrical wave filter |
| US2194543A (en) * | 1938-04-13 | 1940-03-26 | Bell Telephone Labor Inc | High frequency network structure |
| US2419557A (en) * | 1943-03-12 | 1947-04-29 | Bell Telephone Labor Inc | Branching circuits |
| US2410656A (en) * | 1943-06-24 | 1946-11-05 | Rca Corp | Tuned ultra high frequency transformer |
| US2414115A (en) * | 1943-08-19 | 1947-01-14 | Bell Telephone Labor Inc | Wave filter |
-
1945
- 1945-11-08 US US627473A patent/US2527664A/en not_active Expired - Lifetime
-
1946
- 1946-10-21 FR FR939388D patent/FR939388A/en not_active Expired
- 1946-11-04 GB GB32744/46A patent/GB627870A/en not_active Expired
-
1950
- 1950-09-23 DE DEH5510A patent/DE825102C/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0423667A1 (en) * | 1989-10-20 | 1991-04-24 | Alcatel Telspace | Microwave band filter of the comb-line type |
| FR2653597A1 (en) * | 1989-10-20 | 1991-04-26 | Alcatel Transmission | BAND FILTER FOR HYPERFREQUENCIES OF THE PEAK FILTER TYPE. |
Also Published As
| Publication number | Publication date |
|---|---|
| FR939388A (en) | 1948-11-12 |
| DE825102C (en) | 1951-12-17 |
| US2527664A (en) | 1950-10-31 |
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