JPS562704A - Fan-shaped beam antenna - Google Patents
Fan-shaped beam antennaInfo
- Publication number
- JPS562704A JPS562704A JP7890079A JP7890079A JPS562704A JP S562704 A JPS562704 A JP S562704A JP 7890079 A JP7890079 A JP 7890079A JP 7890079 A JP7890079 A JP 7890079A JP S562704 A JPS562704 A JP S562704A
- Authority
- JP
- Japan
- Prior art keywords
- fan
- antenna
- shaped beam
- reflection mirror
- paraboloid
- 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
- H01Q19/12—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
Landscapes
- Aerials With Secondary Devices (AREA)
Abstract
PURPOSE:To form easily a high-performance fan-shaped beam antenna, by combining paraboloid reflection mirrors and parabolic cylindrical face reflection mirrors as prescribed. CONSTITUTION:Original axially-symmetrical rotary paraboloid reflection mirror 5 is divided into three by two planes which are parallel with optical axis Z and are distant from axis Z by length l. Two paraboloid reflection mirror parts 2 and 4 obtained in this manner are deflected with focus F as the center so that respective aperture faces may make angle beta shown in the expression. In this expression, phi and theta are the directivity half power width of a desired fan-shaped beam and the power half width of the same type antenna, which has the half gain of the antenna consisting of the original rotary paraboloid reflection mirror, respectively. And the spacing part between the deflected reflection mirrors 2, 4 is blocked with the parabolic cylindrical face reflection mirror 3. If a primary radiator 8 is provided in focus F of the antenna formed in this manner, a fan-shaped directivity of a rapid rise can be obtained. Thus, a high-performance fan-shaped beam antenna can be obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7890079A JPS562704A (en) | 1979-06-22 | 1979-06-22 | Fan-shaped beam antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7890079A JPS562704A (en) | 1979-06-22 | 1979-06-22 | Fan-shaped beam antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS562704A true JPS562704A (en) | 1981-01-13 |
| JPS6232844B2 JPS6232844B2 (en) | 1987-07-17 |
Family
ID=13674690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7890079A Granted JPS562704A (en) | 1979-06-22 | 1979-06-22 | Fan-shaped beam antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS562704A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60241058A (en) * | 1984-05-16 | 1985-11-29 | Canon Inc | Formation of image |
| US5258767A (en) * | 1989-03-14 | 1993-11-02 | Kokusai Denshin Denwa Co., Ltd. | Antenna system for shaped beam |
| CN110829035A (en) * | 2019-11-19 | 2020-02-21 | 大连海事大学 | Circular polarization patch antenna of wide half-power wave beam |
-
1979
- 1979-06-22 JP JP7890079A patent/JPS562704A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60241058A (en) * | 1984-05-16 | 1985-11-29 | Canon Inc | Formation of image |
| US5258767A (en) * | 1989-03-14 | 1993-11-02 | Kokusai Denshin Denwa Co., Ltd. | Antenna system for shaped beam |
| CN110829035A (en) * | 2019-11-19 | 2020-02-21 | 大连海事大学 | Circular polarization patch antenna of wide half-power wave beam |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6232844B2 (en) | 1987-07-17 |
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