GB473116A - Improvements in or relating to high frequency electrical filters - Google Patents
Improvements in or relating to high frequency electrical filtersInfo
- Publication number
- GB473116A GB473116A GB34139/36A GB3413936A GB473116A GB 473116 A GB473116 A GB 473116A GB 34139/36 A GB34139/36 A GB 34139/36A GB 3413936 A GB3413936 A GB 3413936A GB 473116 A GB473116 A GB 473116A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condenser
- inductances
- harmonic
- tuned
- circuit
- 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
- H03H7/0138—Electrical filters or coupling circuits
-
- 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
- H03H7/42—Networks for transforming balanced signals into unbalanced signals and vice versa, e.g. baluns
- H03H7/425—Balance-balance networks
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
473,116. Impedance networks; valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Dec. 11, 1936, No. 34139. Convention date, Jan. 20. [Classes 40 (iii) and 40 (v)] Second and third harmonics are eliminated, and a push-pull oscillator 1 is matched to the feeder 5 of an aerial 4, by means of the filter 6. The inductances L3, L4, L5, L6 are adjusted to effect matching of the line, the condenser C8 being used temporarily in place of the tuned shunt. The condenser C8 is then removed, and the acceptor circuit C5, L7, L8, C6 is tuned to the third harmonic, which appears as a potential between the legs of the circuit. The earthed inductance L9 is then adjusted so that the acceptor circuits L9, L7, C5 and L9, L8, C6 are tuned to the second harmonic, which appears as a potential between each leg of the circuit and earth. The inductances L7, L8 may be reduced for the third harmonic by means of a short - circuiting strap S. The variable inductance L9 may be replaced by a variable condenser, Fig. 3 (not shown). The condensers C5, C6 may be interchanged with the inductances L7, L8 and combined to form a three-plate condenser, Fig. 4 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US473116XA | 1936-01-20 | 1936-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB473116A true GB473116A (en) | 1937-10-06 |
Family
ID=21948256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34139/36A Expired GB473116A (en) | 1936-01-20 | 1936-12-11 | Improvements in or relating to high frequency electrical filters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB473116A (en) |
-
1936
- 1936-12-11 GB GB34139/36A patent/GB473116A/en not_active Expired
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