GB467785A - Improvements in or relating to direction finding radio receiver systems - Google Patents
Improvements in or relating to direction finding radio receiver systemsInfo
- Publication number
- GB467785A GB467785A GB28429/36A GB2842936A GB467785A GB 467785 A GB467785 A GB 467785A GB 28429/36 A GB28429/36 A GB 28429/36A GB 2842936 A GB2842936 A GB 2842936A GB 467785 A GB467785 A GB 467785A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frames
- radiogoniometer
- goniometer
- oct
- centre
- 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
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
- G01S3/04—Details
- G01S3/08—Means for reducing polarisation errors, e.g. by use of Adcock or spaced loop antenna systems
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Structure Of Receivers (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
467,785. Directive wireless signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE. Oct. 19, 1936, No. 28429. Convention date, Oct. 19, 1935. [Class 40 (v)] A directional receiving system comprises three or more vertical frame aerials R1 .. R4, Fig. 3, arranged on a circle, and coupled to a radio-goniometer G. The frames are mounted to rotate simultaneously with their planes parallel, the search coil D of the radiogoniometer also rotating with the frames and being so orientated to them that the E.M.F. induced therein is free from " night effect " when the plane of the frames is parallel to the incoming signal. Each of the frames R may be replaced by a pair of fixed crossed frames, and a radio-goniometer, all coupled to a centre radiogoniometer. To sharpen the critical bearing- point an additional frame may be arranged in the centre of the circle, whilst for " sense " determination an open aerial may be fixed in an eccentric position. Fig. 5 shows set of three frame-aerials mounted on an aeroplane so as to be free from " night error." Specifications 452,290 and 463,052 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DET45886D DE660323C (en) | 1935-10-19 | 1935-10-19 | Bearing arrangement to avoid the nighttime effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB467785A true GB467785A (en) | 1937-06-23 |
Family
ID=6540749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28429/36A Expired GB467785A (en) | 1935-10-19 | 1936-10-19 | Improvements in or relating to direction finding radio receiver systems |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2190717A (en) |
| DE (1) | DE660323C (en) |
| FR (1) | FR811865A (en) |
| GB (1) | GB467785A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2463475A (en) * | 1945-09-05 | 1949-03-01 | Standard Telephones Cables Ltd | Direction finder |
| US2465384A (en) * | 1945-11-21 | 1949-03-29 | Standard Telephones Cables Ltd | Sector adcock system |
| US2644158A (en) * | 1946-11-06 | 1953-06-30 | Sterling R Thrift | Directive antenna system |
| US3987445A (en) * | 1963-02-11 | 1976-10-19 | Fales Iii David | Oblique scatter object detection and location system |
| US4779097A (en) * | 1985-09-30 | 1988-10-18 | The Boeing Company | Segmented phased array antenna system with mechanically movable segments |
| US9747480B2 (en) | 2011-12-05 | 2017-08-29 | Adasa Inc. | RFID and robots for multichannel shopping |
| US10476130B2 (en) | 2011-12-05 | 2019-11-12 | Adasa Inc. | Aerial inventory antenna |
| US10050330B2 (en) | 2011-12-05 | 2018-08-14 | Adasa Inc. | Aerial inventory antenna |
| US11093722B2 (en) | 2011-12-05 | 2021-08-17 | Adasa Inc. | Holonomic RFID reader |
| US10846497B2 (en) | 2011-12-05 | 2020-11-24 | Adasa Inc. | Holonomic RFID reader |
| US9780435B2 (en) | 2011-12-05 | 2017-10-03 | Adasa Inc. | Aerial inventory antenna |
-
1935
- 1935-10-19 DE DET45886D patent/DE660323C/en not_active Expired
-
1936
- 1936-10-15 FR FR811865D patent/FR811865A/en not_active Expired
- 1936-10-19 GB GB28429/36A patent/GB467785A/en not_active Expired
- 1936-12-17 US US116292A patent/US2190717A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE660323C (en) | 1938-05-23 |
| US2190717A (en) | 1940-02-20 |
| FR811865A (en) | 1937-04-24 |
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