GB599572A - Improvements in or relating to aerial systems for radiolocation apparatus - Google Patents
Improvements in or relating to aerial systems for radiolocation apparatusInfo
- Publication number
- GB599572A GB599572A GB2416045A GB2416045A GB599572A GB 599572 A GB599572 A GB 599572A GB 2416045 A GB2416045 A GB 2416045A GB 2416045 A GB2416045 A GB 2416045A GB 599572 A GB599572 A GB 599572A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reflector
- angle
- point
- relating
- plate
- 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
- 238000005286 illumination Methods 0.000 abstract 1
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
- H01Q19/12—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 wherein the surfaces are concave
Abstract
599,572. Aerials. SMITH, C. H., BOOKER, H. G., and WOODWARD, P. M. Sept. 18, 1945, No. 24160. [Class 40 (v)] An aerial for a pulse radar system in which energy is transmitted from a point, e.g. an aircraft, to detect objects in a plane not passing through the point, e.g. the surface of the earth, comprises a reflector which is so constructed 'that between certain limiting angles the power transmitted (or received) is proportional to the square of the cosecant of the angle of depression, so that between the limits specified the " illumination " of the surface is uniform. In one embodiment, Fig. 2, the reflector consists of a paraboloid divided diametrically in the horizontal plane, with the upper half displaced away from the focus by an eighth of the operating wavelength. In a second embodiment, Fig. 3, a reflector plate 15 is located within the reflector at an angle which may be adjusted. By a correct choice of the size and position of the plate the above conditions may be satisfied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US765208A US2580965A (en) | 1945-09-18 | 1947-07-31 | Aerial system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB599572A true GB599572A (en) | 1948-03-16 |
Family
ID=1738160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2416045A Expired GB599572A (en) | 1945-09-18 | 1945-09-18 | Improvements in or relating to aerial systems for radiolocation apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB599572A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2709252A (en) * | 1948-08-20 | 1955-05-24 | Gilfillan Bros Inc | Multi-plane tracking in ground controlled approach system |
| GB2297940A (en) * | 1995-02-15 | 1996-08-21 | Do Rego Frederico | Dental mould |
-
1945
- 1945-09-18 GB GB2416045A patent/GB599572A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2709252A (en) * | 1948-08-20 | 1955-05-24 | Gilfillan Bros Inc | Multi-plane tracking in ground controlled approach system |
| GB2297940A (en) * | 1995-02-15 | 1996-08-21 | Do Rego Frederico | Dental mould |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2426218A (en) | Instrument navigation system | |
| US2427905A (en) | Radio locating equipment | |
| GB672865A (en) | Improvements in and relating to radio ranging systems | |
| GB565379A (en) | Radio landing guide system for aircraft | |
| GB1141357A (en) | Radio navigation system | |
| GB599572A (en) | Improvements in or relating to aerial systems for radiolocation apparatus | |
| GB465022A (en) | Improvements in or relating to radio systems for "detecting" or "spotting" aircraft and other moving bodies | |
| FR939447A (en) | Device for focusing an electron beam | |
| US2638585A (en) | Radio-locator system | |
| FR1454451A (en) | Combined radar-laser pointing device | |
| GB800466A (en) | Improvements in or relating to very short wave directional aerial systems | |
| ES413427A1 (en) | Doppler navigation beacon system with angular filter | |
| GB494667A (en) | Improvements in and relating to radiation-sensitive devices | |
| GB635478A (en) | Improvements relating to control systems for controlling the movement of a positionable member | |
| GB1178089A (en) | Improvements in or relating to Radar Tracking Devices | |
| JPS5443493A (en) | Radar device | |
| GB655582A (en) | Improvements in and relating to radar systems | |
| US2523895A (en) | Radio navigational aid | |
| GB610360A (en) | Improvements in directional wireless aerial systems | |
| JPS53144294A (en) | Radar target simulator device | |
| GB1029791A (en) | Device for determining the relative position of two objects | |
| CH248846A (en) | Direction-finding device in which two identical, directional antenna systems set up at an angle are used. | |
| GB553424A (en) | Improvements in apparatus for the production of wireless course beams | |
| US2580965A (en) | Aerial system | |
| GB539290A (en) | Direction finding system |