GB660788A - Directive antenna system - Google Patents
Directive antenna systemInfo
- Publication number
- GB660788A GB660788A GB1368/48A GB136848A GB660788A GB 660788 A GB660788 A GB 660788A GB 1368/48 A GB1368/48 A GB 1368/48A GB 136848 A GB136848 A GB 136848A GB 660788 A GB660788 A GB 660788A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lens
- horn
- phase
- axis
- jan
- 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
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/12—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems
- H01Q3/14—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system using mechanical relative movement between primary active elements and secondary devices of antennas or antenna systems for varying the relative position of primary active element and a refracting or diffracting device
Landscapes
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
660,788. Directive-radio systems. STANDARD TELEPHONES & CABLES, Ltd. Jan. 16, 1948 [Jan. 16, 1947], No. 1368/48. Class 40 (vii). A continuously rotating directive aerial system comprising a primary aerial element 1 and a radiator 2, comprising either a horn as illustrated or a paraboloidal reflector, is surrounded by a lens structure 3 comprising a plurality of radiallypositioned conducting plates forming wave-guide elements modifying the phase velocity of the radiation passing through them, the elements 1, 2 being continuously rotated by a motor 4. The plates are so shaped that a spherical wavefront diverging from 1 would produce an equiphase surface over the outer surface of the lens 3. To produce a narrow beam the phase must be equalized over the target plane to the outer lens surface touching the surface along the axis of the radiation. This is achieved by inserting metallic plates into the horn 2 so as to advance the phase of the waves which diverge from the horizontal axis of the system 1, 2 with respect to those radiated along this axis. The lens thus functions to sharpen the rotating beam in the vertical plane while the horn 2 provides a narrow beam in the horizontal plane. If it is desired to tilt the radiated beam in elevation the outer surface of the lens 3 may be suitably conically shaped. Specification 650,767 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US722440A US2611870A (en) | 1947-01-16 | 1947-01-16 | Directive antenna system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB660788A true GB660788A (en) | 1951-11-14 |
Family
ID=24901844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1368/48A Expired GB660788A (en) | 1947-01-16 | 1948-01-16 | Directive antenna system |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US2611870A (en) |
| BE (1) | BE479578A (en) |
| CH (1) | CH280689A (en) |
| ES (1) | ES182081A1 (en) |
| FR (1) | FR967358A (en) |
| GB (1) | GB660788A (en) |
| NL (1) | NL138294C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2795783A (en) * | 1953-08-19 | 1957-06-11 | Allen S Dunbar | Microwave lens antenna |
| US2945228A (en) * | 1953-08-21 | 1960-07-12 | Marconi Wireless Telegraph Co | Antenna having two focusing elements |
| BE558882A (en) * | 1955-01-04 | |||
| CN101304122B (en) * | 2008-07-02 | 2011-06-15 | 南京大学 | Apparatus for reinforcing directional radiation of line source |
| CN111541028A (en) * | 2020-05-14 | 2020-08-14 | 北京高信达通信科技股份有限公司 | Active antenna and manufacturing method |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2075808A (en) * | 1930-11-21 | 1937-04-06 | Robert A Fliess | Method and apparatus for observing bodies through opaque substances |
| US1904901A (en) * | 1931-04-04 | 1933-04-18 | Harry W Lawrence | Electric light fixture |
| US2231929A (en) * | 1937-04-29 | 1941-02-18 | Sperry Gyroscope Co Inc | Tridimensional radio direction indicator |
| US2288177A (en) * | 1938-11-03 | 1942-06-30 | James M Bailey | Floodlight |
| NL60724C (en) * | 1939-06-24 | |||
| US2460401A (en) * | 1941-11-28 | 1949-02-01 | Bell Telephone Labor Inc | Directive microwave radio antenna |
| US2354665A (en) * | 1942-06-22 | 1944-08-01 | Joseph H Church | Method for protecting against attacking aircraft |
| US2442951A (en) * | 1944-05-27 | 1948-06-08 | Rca Corp | System for focusing and for directing radio-frequency energy |
-
0
- NL NL138294D patent/NL138294C/xx active
- BE BE479578D patent/BE479578A/xx unknown
-
1947
- 1947-01-16 US US722440A patent/US2611870A/en not_active Expired - Lifetime
-
1948
- 1948-01-13 CH CH280689D patent/CH280689A/en unknown
- 1948-01-16 GB GB1368/48A patent/GB660788A/en not_active Expired
- 1948-01-16 FR FR967358D patent/FR967358A/en not_active Expired
- 1948-02-05 ES ES0182081A patent/ES182081A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2611870A (en) | 1952-09-23 |
| BE479578A (en) | |
| FR967358A (en) | 1950-11-02 |
| NL138294C (en) | |
| ES182081A1 (en) | 1948-03-16 |
| CH280689A (en) | 1952-01-31 |
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