GB515710A - Improvements in or relating to aerial systems for wireless receivers - Google Patents
Improvements in or relating to aerial systems for wireless receiversInfo
- Publication number
- GB515710A GB515710A GB17229/38A GB1722938A GB515710A GB 515710 A GB515710 A GB 515710A GB 17229/38 A GB17229/38 A GB 17229/38A GB 1722938 A GB1722938 A GB 1722938A GB 515710 A GB515710 A GB 515710A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wave
- june
- short
- relating
- signals
- 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
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
515,710. Wireless receiving systems. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. June 9, 1938, No. 17229. Convention date, June 9, 1937. Addition to 501,051. [Class 40 (v)] The aerial input-coupling described in the parent Specification is modified by taking the output from the points O, at the end of the two-wire line L and the impedance-matching network, so as to facilitate the reception of short-wave signals. For such signals the input voltage is developed across the surge resistance W, whilst for other wave-bands it appears mainly across the condenser C. The short-wave transformer K, comprising only a few turns, does not introduce any appreciable inductance when receiving the longer waves.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE501051X | 1936-07-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB515710A true GB515710A (en) | 1939-12-12 |
Family
ID=6545709
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19883/37A Expired GB501051A (en) | 1936-07-17 | 1937-07-19 | Improvements in or relating to aerial systems for radio receivers |
| GB17229/38A Expired GB515710A (en) | 1936-07-17 | 1938-06-09 | Improvements in or relating to aerial systems for wireless receivers |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19883/37A Expired GB501051A (en) | 1936-07-17 | 1937-07-19 | Improvements in or relating to aerial systems for radio receivers |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2190436A (en) |
| GB (2) | GB501051A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2747165A (en) * | 1949-07-07 | 1956-05-22 | Pye Ltd | Transformers and networks for tapping or branching cables carrying two or more frequency bands |
| US4328501A (en) * | 1980-04-23 | 1982-05-04 | The United States Of America As Represented By The Secretary Of The Army | Small broadband antennas using lossy matching networks |
| US4443803A (en) * | 1980-04-23 | 1984-04-17 | The United States Of America As Represented By The Secretary Of The Army | Lossy matching for broad bonding low profile small antennas |
-
1937
- 1937-07-19 GB GB19883/37A patent/GB501051A/en not_active Expired
-
1938
- 1938-06-08 US US212423A patent/US2190436A/en not_active Expired - Lifetime
- 1938-06-09 GB GB17229/38A patent/GB515710A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB501051A (en) | 1939-02-20 |
| US2190436A (en) | 1940-02-13 |
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