GB938572A - Improvements in and relating to directional aerial array - Google Patents
Improvements in and relating to directional aerial arrayInfo
- Publication number
- GB938572A GB938572A GB16689/60A GB1668960A GB938572A GB 938572 A GB938572 A GB 938572A GB 16689/60 A GB16689/60 A GB 16689/60A GB 1668960 A GB1668960 A GB 1668960A GB 938572 A GB938572 A GB 938572A
- Authority
- GB
- United Kingdom
- Prior art keywords
- array
- yagi
- reflector
- directors
- aerials
- 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
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/18—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces
- H01Q19/185—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces having two or more spaced reflecting surfaces wherein the surfaces are plane
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/28—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements
- H01Q19/30—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements the primary active element being centre-fed and substantially straight, e.g. Yagi antenna
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
938,572. Aerials. H. EHRENSPECK. May 11, 1960 [May 11, 1959], No. 16689/60. Class 40 (7). The gain of a surface wave aerial, such as a Yagi array, is increased by providing means which ensure that at least some of the radiation from the feed point traverses the array twice. The method is stated to be applicable to all types of surface wave aerials, e.g. dielectric rod aerials. In a first embodiment, Fig. 2, a Yagi array, comprising a fed dipole, a reflector R and a number of directors D, has a reflecting plate M placed as indicated. This aerial radiates in the direction opposite to that in which the Yagi array would radiate, due to the presence of reflector M. The gain and directivity of the array exceeds that of the component Yagi. In a second embodiment, Fig. 4, the array is formed of a Yagi comprising a dipole, directors D, and a reflecting plate M, a reflector R being placed in front of the directors. In this arrangement some of the energy radiated by the Yagi array is reflected by R back to M, where it is again reflected, providing constructive interference with the main radiation lobe. The aerial may be flush-mounted, Fig. 3 (not shown), and the reflecting plate may comprise a flat or slightly curved plate, mesh screen, linear elements parallel or radially mounted, or metallized plastic. It is stated that the reflector R may be formed of like materials.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US812565A US3122745A (en) | 1959-05-11 | 1959-05-11 | Reflection antenna employing multiple director elements and multiple reflection of energy to effect increased gain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB938572A true GB938572A (en) | 1963-10-02 |
Family
ID=25209985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16689/60A Expired GB938572A (en) | 1959-05-11 | 1960-05-11 | Improvements in and relating to directional aerial array |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3122745A (en) |
| DE (1) | DE1167920B (en) |
| GB (1) | GB938572A (en) |
| NL (1) | NL251575A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3774223A (en) * | 1972-10-04 | 1973-11-20 | Us Air Force | High-frequency waveguide feed in combination with a short-backfire antenna |
| US5600339A (en) * | 1994-12-06 | 1997-02-04 | Oros; Edward A. | Antenna |
| US8368608B2 (en) * | 2008-04-28 | 2013-02-05 | Harris Corporation | Circularly polarized loop reflector antenna and associated methods |
| US20150207216A1 (en) * | 2013-06-04 | 2015-07-23 | Panasonic Intellectual Property Management Co., Ltd. | Wireless module |
| CN114930642B (en) * | 2020-02-03 | 2024-01-12 | Ａｇｃ株式会社 | Antenna device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2627028A (en) * | 1945-07-03 | 1953-01-27 | Welville B Nowak | Antenna system |
| US2841792A (en) * | 1951-12-29 | 1958-07-01 | Bell Telephone Labor Inc | Directional array employing laminated conductor |
| GB741897A (en) * | 1953-06-17 | 1955-12-14 | Marconi Wireless Telegraph Co | Improvements in or relating to directional aerial systems |
| BE544068A (en) * | 1954-12-31 |
-
0
- NL NL251575D patent/NL251575A/xx unknown
-
1959
- 1959-05-11 US US812565A patent/US3122745A/en not_active Expired - Lifetime
-
1960
- 1960-05-11 GB GB16689/60A patent/GB938572A/en not_active Expired
- 1960-05-12 DE DE1960K0040687 patent/DE1167920B/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| NL251575A (en) | 1964-02-25 |
| US3122745A (en) | 1964-02-25 |
| DE1167920B (en) | 1964-04-16 |
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