GB266178A - Elimination of disturbing oscillations in radio signalling systems - Google Patents
Elimination of disturbing oscillations in radio signalling systemsInfo
- Publication number
- GB266178A GB266178A GB1248926A GB1248926A GB266178A GB 266178 A GB266178 A GB 266178A GB 1248926 A GB1248926 A GB 1248926A GB 1248926 A GB1248926 A GB 1248926A GB 266178 A GB266178 A GB 266178A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- circuit
- transformer
- primary coil
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H2/00—Networks using elements or techniques not provided for in groups H03H3/00 - H03H21/00
- H03H2/005—Coupling circuits between transmission lines or antennas and transmitters, receivers or amplifiers
Landscapes
- Transmitters (AREA)
Abstract
266,178. Jackson, L. Mellersh-, (Lorenz Akt.-Ges., C.). May 14, 1926. Frequency, changing.-In wireless signalling systems, harmonics, side frequencies, and other undesired frequencies are eliminated from a circuit bv an ironcored transformer, the primary coil of which is in the said circuit, the secondary coil being tuned to the desired frequency. The Figure shows the device applied to a wireless transmission system employing a frequency-multiplier Tr feeding an aerial through a circuit comprising a condenser C, a coupling coil K and the primary coil w<1> of the iron-cored transformer F. The secondary coil w<2> is in circuit with an additional coil Land a tuning-condenser Cs, by which the secondary circuit is tuned to the desired signalling-wave. It is stated that unwanted frequencies are eliminated by the losses in the iron core whilst for the desired wave the resonance current in the secondary coil annuls the field of the primary coil, The transformer F should have low leakage. The secondary coil may be constituted by a portion of the primary coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1248926A GB266178A (en) | 1926-05-14 | 1926-05-14 | Elimination of disturbing oscillations in radio signalling systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1248926A GB266178A (en) | 1926-05-14 | 1926-05-14 | Elimination of disturbing oscillations in radio signalling systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB266178A true GB266178A (en) | 1927-02-24 |
Family
ID=10005532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1248926A Expired GB266178A (en) | 1926-05-14 | 1926-05-14 | Elimination of disturbing oscillations in radio signalling systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB266178A (en) |
-
1926
- 1926-05-14 GB GB1248926A patent/GB266178A/en not_active Expired
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