JPS5651107A - Antenna device - Google Patents
Antenna deviceInfo
- Publication number
- JPS5651107A JPS5651107A JP12819279A JP12819279A JPS5651107A JP S5651107 A JPS5651107 A JP S5651107A JP 12819279 A JP12819279 A JP 12819279A JP 12819279 A JP12819279 A JP 12819279A JP S5651107 A JPS5651107 A JP S5651107A
- Authority
- JP
- Japan
- Prior art keywords
- mirrors
- subreflection
- reference direction
- reflection mirror
- angle made
- 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.)
- Granted
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
- H01Q19/19—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 comprising one main concave reflecting surface associated with an auxiliary reflecting surface
- H01Q19/191—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 comprising one main concave reflecting surface associated with an auxiliary reflecting surface wherein the primary active element uses one or more deflecting surfaces, e.g. beam waveguide feeds
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
PURPOSE:To make it possible to remove cross polarization in an arbitrary beam direction, by constituting an antenna device with two subreflection mirrors and the main reflection mirror and by not making the beam direction between two subreflection mirrors parallel with the beam direction of the main reflection mirror. CONSTITUTION:Radio waves radiated from conical horn 1 are reflected by subreflection mirrors 3 and 4 and are further reflected by main reflection mirror 2 and become the beam in a desired direction and are radiated. At this time, when NW is defined as the reference direction and the angle made by F0M and the reference direction, the angle made by M1M2 and the reference direction, angle made by M2M and the reference direction, and the distance from M1 to F1 are denoted as theta0, alpha, beta and l respectively, P1 = - sign (l) and P2 = signalpha (Xtheta-l/L0) are satisfied in respect to parameter P indicating the form of reflection mirrors (however, P1 and P2 indicate subreflection mirrors 3 and 4 respectively, and L0 is the distance from F0 to M0).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12819279A JPS5651107A (en) | 1979-10-04 | 1979-10-04 | Antenna device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12819279A JPS5651107A (en) | 1979-10-04 | 1979-10-04 | Antenna device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5651107A true JPS5651107A (en) | 1981-05-08 |
JPS6129569B2 JPS6129569B2 (en) | 1986-07-08 |
Family
ID=14978720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12819279A Granted JPS5651107A (en) | 1979-10-04 | 1979-10-04 | Antenna device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5651107A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61169004A (en) * | 1985-01-22 | 1986-07-30 | Mitsubishi Electric Corp | Antenna device |
-
1979
- 1979-10-04 JP JP12819279A patent/JPS5651107A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61169004A (en) * | 1985-01-22 | 1986-07-30 | Mitsubishi Electric Corp | Antenna device |
JPH0550882B2 (en) * | 1985-01-22 | 1993-07-30 | Mitsubishi Electric Corp |
Also Published As
Publication number | Publication date |
---|---|
JPS6129569B2 (en) | 1986-07-08 |
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