GB148824A - Arrangement for the reception of electrical waves - Google Patents
Arrangement for the reception of electrical wavesInfo
- Publication number
- GB148824A GB148824A GB20662/20A GB2066220A GB148824A GB 148824 A GB148824 A GB 148824A GB 20662/20 A GB20662/20 A GB 20662/20A GB 2066220 A GB2066220 A GB 2066220A GB 148824 A GB148824 A GB 148824A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aerial
- circuit
- aerials
- tuned
- render
- 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
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
148,824. Huth Ges., Dr. E. F. April 26, 1919, [Convention date]. Multiplex wireless signalling; aerials; thermionic relays. - Simultaneous reception by frame aerials of a number of messages or different wave lengths is obtained by coupling the aerial circuit to s number of secondary circuits, each tuned tc one of the desired waves. The receptior may be amplified by thermionic valves either before or after separating the various wave lengths. As shown in Fig. 1, the aerial a is connected in series with a number of coupling coils b, c, d and with a tuning condenser k which, however, may be shortcircuited by a switch u to render the aerial circuit aperiodic. Secondary circuits e, f, g tuned to the desired frequencies are coupled on the one hand to the aerial coils b, c, d and on the other hand to the grid circuit of valve amplifiers h. The plate circuits of the valves are coupled reacti vely to the aerial circuit. To render the aerial system non-directional, a pair of frame aerials set up at right angles, or a number of frames arranged symmetrically, may be connected in parallel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE148824X | 1919-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB148824A true GB148824A (en) | 1921-01-13 |
Family
ID=5672961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20662/20A Expired GB148824A (en) | 1919-04-26 | 1920-07-10 | Arrangement for the reception of electrical waves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB148824A (en) |
-
1920
- 1920-07-10 GB GB20662/20A patent/GB148824A/en not_active Expired
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