GB803608A - Quadrantal error correcting means for magnetic antennas - Google Patents
Quadrantal error correcting means for magnetic antennasInfo
- Publication number
- GB803608A GB803608A GB762/57A GB76257A GB803608A GB 803608 A GB803608 A GB 803608A GB 762/57 A GB762/57 A GB 762/57A GB 76257 A GB76257 A GB 76257A GB 803608 A GB803608 A GB 803608A
- Authority
- GB
- United Kingdom
- Prior art keywords
- members
- antenna elements
- magnetic
- pair
- antenna
- 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
- G01S3/10—Means for reducing or compensating for quadrantal, site, or like errors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Details Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
803,608. Aerials; radio direction finding. BENDIX AVIATION CORPORATION. Jan. 8, 1957 [Feb. 3, 1956], No. 762/57. Addition to 772,998. Class 40 (7). Relates to a magnetic direction-finding aerial, Fig. 1, of the type described in the parent Specification, wherein a first pair of two crossed pairs of magnetic antenna elements is provided with highly permeable bars 31 at the extremities to compensate for quadrantal errors due to the presence of adjacent conducting surfaces. In accordance with the invention the other pair of antenna elements is provided at the extremities with conductive shielding members 31<1> which are secured to the elements in a high reluctance fashion. The members 31<1> act as shields against the passage of flux into the antenna elements so as effectively to decrease the sensitivity of the antenna elements, The combination of conductive members 31<1> on one pair of antenna elements with magnetic members 31 on the other pair extends the possible range of compensation. Members 31<1> are constructed as shown in Fig. 2 of a highly conductive material, such as copper, and are secured to the antenna elements as shown in Fig. 4 by a brass screw 36 with the interposition of an insulating member 35 so as to provide a high reluctance separation between the member and antenna element; 33 denotes a coating of plastic material normally provided over the magnetic material forming the antenna. If desired, members 31<1> may be shaped as segments of circles.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US772998XA | 1954-10-04 | 1954-10-04 | |
US803608XA | 1956-02-03 | 1956-02-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB803608A true GB803608A (en) | 1958-10-29 |
Family
ID=26759124
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27117/55A Expired GB772998A (en) | 1954-10-04 | 1955-09-22 | Quadrantal error correcting means for magnetic antennas |
GB762/57A Expired GB803608A (en) | 1954-10-04 | 1957-01-08 | Quadrantal error correcting means for magnetic antennas |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB27117/55A Expired GB772998A (en) | 1954-10-04 | 1955-09-22 | Quadrantal error correcting means for magnetic antennas |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1012340B (en) |
FR (1) | FR1163359A (en) |
GB (2) | GB772998A (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH219970A (en) * | 1940-07-26 | 1942-03-15 | Telefunken Gmbh | Bearing frame. |
DE856909C (en) * | 1949-11-29 | 1952-11-24 | Siemens Ag | Electrical compensation of radio misrepresentation in goniometer direction finders with a large frequency range |
-
1955
- 1955-09-22 GB GB27117/55A patent/GB772998A/en not_active Expired
- 1955-09-27 DE DEB37328A patent/DE1012340B/en active Pending
- 1955-09-28 FR FR1163359D patent/FR1163359A/en not_active Expired
-
1957
- 1957-01-08 GB GB762/57A patent/GB803608A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB772998A (en) | 1957-04-17 |
DE1012340B (en) | 1957-07-18 |
FR1163359A (en) | 1958-09-25 |
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