JPS5797707A - Parabolic antenna - Google Patents
Parabolic antennaInfo
- Publication number
- JPS5797707A JPS5797707A JP17433480A JP17433480A JPS5797707A JP S5797707 A JPS5797707 A JP S5797707A JP 17433480 A JP17433480 A JP 17433480A JP 17433480 A JP17433480 A JP 17433480A JP S5797707 A JPS5797707 A JP S5797707A
- Authority
- JP
- Japan
- Prior art keywords
- face
- reflective
- conductor
- waveguide
- tip
- 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.)
- Pending
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
- H01Q19/12—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
- H01Q19/13—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 the primary radiating source being a single radiating element, e.g. a dipole, a slot, a waveguide termination
- H01Q19/134—Rear-feeds; Splash plate feeds
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
PURPOSE:To obtain a small-sized parabolic antenna which has a simple structure and a sufficient performance and has a primary radiator suitable for circular polarized waves, by combining an axially symmetrical waveguide and a reflective conductor by die casting or the like. CONSTITUTION:A tip part 2 of an axially symmetrical round waveguide 1 is cut by the face perpendicular to the axis. A reflective face 4 of a reflective conductor 3 is arranged oppositely to the tip face with a gap D1 for the tip 2. the reflective face 4 is connected to a conductor face 4' which covers a conductor face 5 on the outside circumference of the waveguide 1 by holding a gap D2, and the inside conductor face of the reflective conductor 3 is formed into an axially symmetrical recess. Electromagnetic waves in the waveguide are radiated through gaps D1 and D2 from an aperture face 6 to a reflective face 7 of the parabolic antenna. A corner 8 is provided in the aperture part for determining the radiation directivity of the primary radiator, and the directional pattern is adjusted by the size and the angle of the corner 8.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17433480A JPS5797707A (en) | 1980-12-10 | 1980-12-10 | Parabolic antenna |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17433480A JPS5797707A (en) | 1980-12-10 | 1980-12-10 | Parabolic antenna |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5797707A true JPS5797707A (en) | 1982-06-17 |
Family
ID=15976818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17433480A Pending JPS5797707A (en) | 1980-12-10 | 1980-12-10 | Parabolic antenna |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5797707A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0329390A2 (en) * | 1988-02-19 | 1989-08-23 | The Agency of Industrial Science and Technology | Structure of primary radiator |
US7926530B2 (en) | 2005-12-28 | 2011-04-19 | Toyota Jidosha Kabushiki Kaisha | Device for generating tire air pressure |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB825532A (en) * | 1955-09-03 | 1959-12-16 | Mini Of Supply | Improvements in or relating to radiating waveguide feeders for radio-frequency electromagnetic waves |
JPS4936901U (en) * | 1972-06-30 | 1974-04-01 | ||
JPS5224449A (en) * | 1975-08-20 | 1977-02-23 | Nippon Hoso Kyokai <Nhk> | Circular polarized antenna |
JPS54138546A (en) * | 1978-04-19 | 1979-10-27 | Sumitomo Chem Co Ltd | Preparation of copper phthalocyanine |
-
1980
- 1980-12-10 JP JP17433480A patent/JPS5797707A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB825532A (en) * | 1955-09-03 | 1959-12-16 | Mini Of Supply | Improvements in or relating to radiating waveguide feeders for radio-frequency electromagnetic waves |
JPS4936901U (en) * | 1972-06-30 | 1974-04-01 | ||
JPS5224449A (en) * | 1975-08-20 | 1977-02-23 | Nippon Hoso Kyokai <Nhk> | Circular polarized antenna |
JPS54138546A (en) * | 1978-04-19 | 1979-10-27 | Sumitomo Chem Co Ltd | Preparation of copper phthalocyanine |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0329390A2 (en) * | 1988-02-19 | 1989-08-23 | The Agency of Industrial Science and Technology | Structure of primary radiator |
US7926530B2 (en) | 2005-12-28 | 2011-04-19 | Toyota Jidosha Kabushiki Kaisha | Device for generating tire air pressure |
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