GB450484A - Improvements in or relating to radio direction finding - Google Patents
Improvements in or relating to radio direction findingInfo
- Publication number
- GB450484A GB450484A GB2833/35A GB283335A GB450484A GB 450484 A GB450484 A GB 450484A GB 2833/35 A GB2833/35 A GB 2833/35A GB 283335 A GB283335 A GB 283335A GB 450484 A GB450484 A GB 450484A
- Authority
- GB
- United Kingdom
- Prior art keywords
- jan
- aerial
- relating
- axis
- direction finding
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
450,484. Directive wireless signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Jan. 28, 1935, No. 2833. Convention date, Jan. 27, 1934. [Class 40 (v)] In order to sharpen the critical point, particularly in a direction - finder used on an aeroplane for two - dimensional working, the characteristic field diagram A of any known type of directional aerial is made to rotate constantly about an axis OY slightly inclined to the major axis OX of the curve. This operation can be effected by mechanically rotating a reflector associated with the aerial at O, or by cyclically varying suitable couplings in the receiving circuit. The direction of the transmitter then lies in the line along which the received signal remains at constant strength.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE450484X | 1934-01-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB450484A true GB450484A (en) | 1936-07-20 |
Family
ID=6538403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2833/35A Expired GB450484A (en) | 1934-01-27 | 1935-01-28 | Improvements in or relating to radio direction finding |
Country Status (2)
Country | Link |
---|---|
GB (1) | GB450484A (en) |
NL (1) | NL44763C (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2423150A (en) * | 1943-12-10 | 1947-07-01 | Rca Corp | Lobe switching antenna |
US2500552A (en) * | 1942-08-13 | 1950-03-14 | Rca Corp | Electronic indicator system for radar with spinning antenna or the like |
US2512139A (en) * | 1944-12-29 | 1950-06-20 | Us Sec War | Antenna |
US2513962A (en) * | 1944-05-09 | 1950-07-04 | Gen Electric | Directive radiant energy object locating system |
US2520945A (en) * | 1943-08-18 | 1950-09-05 | Sperry Corp | Wave transmission apparatus |
US2531455A (en) * | 1942-02-04 | 1950-11-28 | Sperry Corp | Directive antenna structure |
US2539657A (en) * | 1942-10-16 | 1951-01-30 | Rca Corp | Parabolic antenna system for radio locators |
US2605418A (en) * | 1945-05-09 | 1952-07-29 | Albert M Grass | Scanning system |
US2635191A (en) * | 1945-07-09 | 1953-04-14 | Jr Lewis E Swarts | Antenna |
US2643338A (en) * | 1945-09-18 | 1953-06-23 | Us Navy | Conical scan antenna |
US2644092A (en) * | 1945-08-30 | 1953-06-30 | Us Sec War | Antenna |
US2646508A (en) * | 1945-10-26 | 1953-07-21 | Gen Electric | Nutating antenna |
US2646507A (en) * | 1945-08-01 | 1953-07-21 | Us Sec War | Antenna |
US2671854A (en) * | 1945-09-06 | 1954-03-09 | Halpern Julius | Conical scanning antenna |
-
0
- NL NL44763D patent/NL44763C/xx active
-
1935
- 1935-01-28 GB GB2833/35A patent/GB450484A/en not_active Expired
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2531455A (en) * | 1942-02-04 | 1950-11-28 | Sperry Corp | Directive antenna structure |
US2500552A (en) * | 1942-08-13 | 1950-03-14 | Rca Corp | Electronic indicator system for radar with spinning antenna or the like |
US2539657A (en) * | 1942-10-16 | 1951-01-30 | Rca Corp | Parabolic antenna system for radio locators |
US2520945A (en) * | 1943-08-18 | 1950-09-05 | Sperry Corp | Wave transmission apparatus |
US2423150A (en) * | 1943-12-10 | 1947-07-01 | Rca Corp | Lobe switching antenna |
US2513962A (en) * | 1944-05-09 | 1950-07-04 | Gen Electric | Directive radiant energy object locating system |
US2512139A (en) * | 1944-12-29 | 1950-06-20 | Us Sec War | Antenna |
US2605418A (en) * | 1945-05-09 | 1952-07-29 | Albert M Grass | Scanning system |
US2635191A (en) * | 1945-07-09 | 1953-04-14 | Jr Lewis E Swarts | Antenna |
US2646507A (en) * | 1945-08-01 | 1953-07-21 | Us Sec War | Antenna |
US2644092A (en) * | 1945-08-30 | 1953-06-30 | Us Sec War | Antenna |
US2671854A (en) * | 1945-09-06 | 1954-03-09 | Halpern Julius | Conical scanning antenna |
US2643338A (en) * | 1945-09-18 | 1953-06-23 | Us Navy | Conical scan antenna |
US2646508A (en) * | 1945-10-26 | 1953-07-21 | Gen Electric | Nutating antenna |
Also Published As
Publication number | Publication date |
---|---|
NL44763C (en) |
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