GB913020A - Improvements in or relating to aerial systems - Google Patents
Improvements in or relating to aerial systemsInfo
- Publication number
- GB913020A GB913020A GB102661A GB102661A GB913020A GB 913020 A GB913020 A GB 913020A GB 102661 A GB102661 A GB 102661A GB 102661 A GB102661 A GB 102661A GB 913020 A GB913020 A GB 913020A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- length
- line
- working wavelength
- ferro
- 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
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
- H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
- H01Q11/08—Helical antennas
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
913,020. Aerials. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Jan. 10, 1961 [Jan. 14, 1960], No. 1026/61. Class 40 (7). An aerial system capable of radiating or receiving circularly polarized waves to or from any direction within a considerable solid angle comprises two serially-connected coaxial helical coils formed one within the other and such that the outer coil consists of from one to four turns and the inner coil a greater number of turns on a core member of ferro-magnetic material. The length of the system is smaller than the working wavelength. In the embodiment shown the system is fed by a coaxial line and the inner conductor 2 of the line is coupled to a two-turn outer helix 1 of diameter one quarter of the working wavelength and length one-third of this length. At its outer end this coil is joined to a ten-turn inner coil 3 wound round a rod 4 of ferro-magnetic material. The rod 3 is supported from the end of the coaxial line by insulator 5 and the inner end of coil 3 is connected to the outer conductor 6 of the line. The diameter of coil 3 may be a tenth of the working wavelength. The system is said to have a diagram with a 60 degrees apex angle to 3 db. points and to have a factor of ellipticity better than 0.7 within an apex angle of 80 degrees.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR815655A FR1254539A (en) | 1960-01-14 | 1960-01-14 | Improvements to antennas radiating a circularly polarized wave |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB913020A true GB913020A (en) | 1962-12-12 |
Family
ID=8723804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB102661A Expired GB913020A (en) | 1960-01-14 | 1961-01-10 | Improvements in or relating to aerial systems |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1254539A (en) |
| GB (1) | GB913020A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2823015A1 (en) * | 2001-03-29 | 2002-10-04 | Samsung Electro Mech | ANTENNA AND MANUFACTURING METHOD THEREOF |
-
1960
- 1960-01-14 FR FR815655A patent/FR1254539A/en not_active Expired
-
1961
- 1961-01-10 GB GB102661A patent/GB913020A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2823015A1 (en) * | 2001-03-29 | 2002-10-04 | Samsung Electro Mech | ANTENNA AND MANUFACTURING METHOD THEREOF |
| DE10128709A1 (en) * | 2001-03-29 | 2002-10-24 | Samsung Electro Mech | Bi-band antenna incorporating primary and secondary windings where the sensitivity characteristics utilising a plurality of bands of frequencies is improved and the antenna may be miniaturised |
| AT501583A1 (en) * | 2001-03-29 | 2006-09-15 | Samsung Electro Mech | ANTENNA AND METHOD FOR THEIR MANUFACTURE |
| AT501583B1 (en) * | 2001-03-29 | 2007-05-15 | Samsung Electro Mech | DUALBAND ANTENNA AND METHOD FOR THE PRODUCTION THEREOF |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1254539A (en) | 1961-02-24 |
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