GB698985A - Improvements relating to aerial systems - Google Patents
Improvements relating to aerial systemsInfo
- Publication number
- GB698985A GB698985A GB17527/51A GB1752751A GB698985A GB 698985 A GB698985 A GB 698985A GB 17527/51 A GB17527/51 A GB 17527/51A GB 1752751 A GB1752751 A GB 1752751A GB 698985 A GB698985 A GB 698985A
- Authority
- GB
- United Kingdom
- Prior art keywords
- guide
- reflector
- wave
- transmission line
- coupling
- 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
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/04—Coupling devices of the waveguide type with variable factor of coupling
Abstract
698,985. Aerial coupling arrangements. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. May 30, 1952 [July 24, 1951], No. 17527/51. Classes 40 (v) and 40 (vii). In a radio aerial comprising a primary element fed from a transmission line and associated with a reflector or a lens for producing a desired directivity pattern, the production of standing waves in the transmission line by reflection of energy from the reflector or lens back into the transmission line is reduced by the provision of a further length of transmission line producing reflections which are in anti-phase with those from the lens or reflector. The aerial comprises a " cheese " reflector 1 associated with a wave-guide horn 3 coupled to the transmitter by means of a wave-guide 4. A length of auxiliary wave-guide 5, terminated by an adjustable reflecting plunger 7 is coupled by means of a directional coupler 6, incorporating a matched termination 8 to the waveguide 4, the length of the guide 5 and the coupling between the guides 4 and 3 being so chosen that the energy reflected from the plunger 7 cancels that reflected from the reflector 1 back into the wave-guide 4. Where it is difficult to achieve exactly the desired coupling factor between the guides 4 and 5, excessive coupling may be provided and this compensated for by the insertion of an attenuator into the wave-guide 5.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB17527/51A GB698985A (en) | 1951-07-24 | 1951-07-24 | Improvements relating to aerial systems |
| US299482A US2786980A (en) | 1951-07-24 | 1952-07-17 | Waveguide impedance matching system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB17527/51A GB698985A (en) | 1951-07-24 | 1951-07-24 | Improvements relating to aerial systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB698985A true GB698985A (en) | 1953-10-28 |
Family
ID=10096735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17527/51A Expired GB698985A (en) | 1951-07-24 | 1951-07-24 | Improvements relating to aerial systems |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2786980A (en) |
| GB (1) | GB698985A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7307492B2 (en) * | 2002-11-27 | 2007-12-11 | Intel Corporation | Design, layout and method of manufacture for a circuit that taps a differential signal |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE23131E (en) * | 1949-06-28 | Tuned microwave wattmeter | ||
| US2188389A (en) * | 1935-11-21 | 1940-01-30 | Emi Ltd | Electrical high frequency signaling system |
| US2593120A (en) * | 1945-03-08 | 1952-04-15 | Us Sec War | Wave guide transmission system |
| US2532539A (en) * | 1945-10-03 | 1950-12-05 | Virgil A Counter | Testing device for radio object detection systems |
| US2644928A (en) * | 1948-06-09 | 1953-07-07 | Rca Corp | Directional transmission line transducer |
| US2586993A (en) * | 1948-07-30 | 1952-02-26 | Raytheon Mfg Co | Balanced duplexer |
| US2561212A (en) * | 1949-12-15 | 1951-07-17 | Bell Telephone Labor Inc | Microwave hybrid branching systems |
| US2634331A (en) * | 1950-05-19 | 1953-04-07 | Philco Corp | Wave attenuator |
| NL161144B (en) * | 1950-06-23 | Sumitomo Chemical Co | PROCESS FOR PREPARING AN CONTROLLING PREPARATION FOR MICRO-ORGANISMS AND OF N- (HALOGENOPHENYL) -OXA- OR THIA SUITABLE FOR SUCH PREPARATION. |
-
1951
- 1951-07-24 GB GB17527/51A patent/GB698985A/en not_active Expired
-
1952
- 1952-07-17 US US299482A patent/US2786980A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2786980A (en) | 1957-03-26 |
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