GB433681A - Improvements in or relating to couplings for use in transmitting or receiving apparatus for ultra high frequency electromagnetic waves - Google Patents
Improvements in or relating to couplings for use in transmitting or receiving apparatus for ultra high frequency electromagnetic wavesInfo
- Publication number
- GB433681A GB433681A GB6773/35A GB677335A GB433681A GB 433681 A GB433681 A GB 433681A GB 6773/35 A GB6773/35 A GB 6773/35A GB 677335 A GB677335 A GB 677335A GB 433681 A GB433681 A GB 433681A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conductors
- coupling
- valve
- ultra high
- couplings
- 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
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B1/00—Details
Abstract
433,681. Wireless signalling. NAAMLOOZE VENNOOTSCHAP MACHINERIEEN - EN APPARATEN FABRIEKEN MEAF, 30, Croeselaan, Utrecht, Holland. March 4, 1935, No. 6773. Convention date, March 7, 1934. [Class 40 (v)] Relates to low-loss couplings between transmission-lines carrying ultra high-frequency currents, as used in short-wave wireless. Fig. 1 shows a right-angled junction between a "closed" line comprising two concentric conductors 1, 2 and an " open line comprising two " strip " or wire conductors 3, 4, the juncture being surrounded by a cylindrical screen 6 to prevent local radiation. The degree of coupling is adjusted by varying the distance to which the end 5 of the conductor 17 extends into the field between the two conductors 3, 4. Fig. 3 shows the coupling applied to a high-frequency valve 7 feeding two dipole aerials 8 located at the focal point of parabolic reflectors 9. The coupling is adjusted by means of a screw 14 which varies the distance apart of the two strip conductors 3, 4 into which the central conductor 5 from the valve protrudes. The valve is of the type described in Specifications 427,528 and 429,863.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE433681X | 1934-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB433681A true GB433681A (en) | 1935-08-19 |
Family
ID=6501241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6773/35A Expired GB433681A (en) | 1934-03-07 | 1935-03-04 | Improvements in or relating to couplings for use in transmitting or receiving apparatus for ultra high frequency electromagnetic waves |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB433681A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE747903C (en) * | 1935-12-14 | 1953-02-23 | Julius Pintsch K G | Tube arrangement for fanning ultra high frequency electromagnetic vibrations |
| GB2238914A (en) * | 1989-11-27 | 1991-06-12 | Matsushita Electric Works Ltd | Waveguide feeding array antenna |
-
1935
- 1935-03-04 GB GB6773/35A patent/GB433681A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE747903C (en) * | 1935-12-14 | 1953-02-23 | Julius Pintsch K G | Tube arrangement for fanning ultra high frequency electromagnetic vibrations |
| GB2238914A (en) * | 1989-11-27 | 1991-06-12 | Matsushita Electric Works Ltd | Waveguide feeding array antenna |
| GB2238914B (en) * | 1989-11-27 | 1994-05-04 | Matsushita Electric Works Ltd | Waveguide feeding array antenna |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB529290A (en) | Improvements in or relating to ultra high frequency electro-magnetic wave transmission | |
| GB517342A (en) | Improvements in or relating to antennas | |
| GB488480A (en) | Antenna systems | |
| GB705192A (en) | Improvements in or relating to couplings for electromagnetic waves between coaxial transmission lines and wire waveguides | |
| US2359620A (en) | Short wave antenna | |
| GB594654A (en) | Antenna system for ultra-short waves | |
| GB575534A (en) | Improvements in or relating to antennas for ultra high frequency electromagnetic waves | |
| GB534066A (en) | Horns for the transmission and reception of ultra-short electromagnetic waves | |
| GB541870A (en) | Improved antenna systems | |
| GB475348A (en) | Improvements in or relating to wireless aerial systems | |
| GB614419A (en) | Improvements in radio antennas | |
| GB721098A (en) | Improvements in and relating to dual frequency radio antennae | |
| GB433681A (en) | Improvements in or relating to couplings for use in transmitting or receiving apparatus for ultra high frequency electromagnetic waves | |
| GB436012A (en) | Improvements in or relating to high frequency transmission systems | |
| GB600663A (en) | Antenna structure | |
| GB496647A (en) | Improvements in or relating to electric high frequency signalling systems | |
| US2315170A (en) | Transmitting or receiving device comprising a dipole antenna | |
| GB643577A (en) | Antenna element | |
| GB552260A (en) | Improvements in or relating to radio altimeters | |
| GB472650A (en) | Improvements in or relating to high frequency signalling systems | |
| GB514390A (en) | Improvements in or relating to aerial systems | |
| GB548193A (en) | Radiators and absorbers of electromagnetic waves | |
| GB457468A (en) | Improvements in or relating to antenna systems and feeding arrangements therefor | |
| GB466020A (en) | Improvements in or relating to radio receiving apparatus | |
| GB644376A (en) | Directive antenna systems |