JPS621409U - - Google Patents
Info
- Publication number
- JPS621409U JPS621409U JP8844386U JP8844386U JPS621409U JP S621409 U JPS621409 U JP S621409U JP 8844386 U JP8844386 U JP 8844386U JP 8844386 U JP8844386 U JP 8844386U JP S621409 U JPS621409 U JP S621409U
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- helical
- conductor
- dielectric antenna
- dielectric
- 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
- 239000004020 conductor Substances 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 230000005855 radiation Effects 0.000 description 2
Landscapes
- Details Of Aerials (AREA)
- Support Of Aerials (AREA)
Description
第１図は従来のらせんアンテナ装置を示ん斜視
図、第２図はらせんアンテナの基本形状を模式的
に示す説明図、第３図はらせん導体１ピツチ分の
展開図、第４図は本考案のらせんアンテナ装置の
実施例を一部断面で示す説明図、第５図は本考案
の実施例で用いられるテーパー状誘電体を示す説
明図、第６図は第４図の実施例における給電部を
取り出して示す拡大断面図、第７図は本考案のら
せんアンテナ装置の放射指向特性を従来例と比較
して示す放射パターン図である。
１，６……グランド板、２……支柱、３，７…
…保持具、４……らせん導体、５……同軸伝送線
路、８……テープ状らせん導体、９……テーパー
状誘電体、１０……給電用同軸接栓、１１……整
合変成器。
Fig. 1 is a perspective view showing a conventional helical antenna device, Fig. 2 is an explanatory diagram schematically showing the basic shape of a helical antenna, Fig. 3 is a developed view of one pitch of a helical conductor, and Fig. 4 is a book. An explanatory diagram showing a partial cross-section of an embodiment of the helical antenna device of the invention, FIG. 5 is an explanatory diagram showing a tapered dielectric used in the embodiment of the invention, and FIG. 6 is a power feeding diagram in the embodiment of FIG. 4. FIG. 7 is a radiation pattern diagram showing the radiation directivity characteristics of the helical antenna device of the present invention in comparison with a conventional example. 1, 6...Ground plate, 2...Strut, 3,7...
... Holder, 4 ... Spiral conductor, 5 ... Coaxial transmission line, 8 ... Tape-shaped spiral conductor, 9 ... Tapered dielectric, 10 ... Coaxial plug for power supply, 11 ... Matching transformer.
Claims (1)
アンテナがグランド板に支持されているらせんア
ンテナ装置において、 前記誘電体アンテナは、サイドローブレベルを
低減する先細りのテーパ形状に形成されていると
ともに、 該誘電体アンテナのグランド板側には、給電伝
送路に対するインピーダンス整合手段と、結合手
段とが一体に形成されており、 前記導体は、巻き径が該誘電体アンテナの形状
に沿つて変化するようにらせん状に巻回されてお
り、 この導体に通電することによつて誘電体アンテ
ナを励振することを特徴とするらせんアンテナ装
置。 (2) 前記誘電体アンテナは、中空状に形成され
ている実用新案登録請求の範囲第１項記載のらせ
んアンテナ装置。 (3) 前記らせん状の導体は、帯状なしいテープ
状の断面形状を有する実用新案登録請求の範囲第
１項又は第２項記載のらせんアンテナ装置。 (4) 前記誘電体アンテナのテーパ形状は、直線
テーパである実用新案登録請求の範囲第１項ない
し第３項のいずれかに記載のらせんアンテナ装置
。 (5) 前記誘電体アンテナのテーパ形状は、指数
関数減衰曲線テーパである実用新案登録請求の範
囲第１項ないし第３項のいずれかに記載のらせん
アンテナ装置。[Claims for Utility Model Registration] (1) In a helical antenna device in which a dielectric antenna in which a conductor of the helical antenna is wound is supported on a ground plate, the dielectric antenna has a tapered shape that reduces the side lobe level. The conductor is formed into a tapered shape, and an impedance matching means for the power transmission line and a coupling means are integrally formed on the ground plate side of the dielectric antenna, and the conductor has a winding diameter that is equal to the diameter of the dielectric antenna. A helical antenna device characterized in that the dielectric antenna is wound spirally so as to change along the shape of the antenna, and the dielectric antenna is excited by passing current through the conductor. (2) The helical antenna device according to claim 1, wherein the dielectric antenna is formed in a hollow shape. (3) The helical antenna device according to claim 1 or 2, wherein the helical conductor has a cross-sectional shape of a strip or tape. (4) The helical antenna device according to any one of claims 1 to 3, wherein the dielectric antenna has a tapered shape that is a linear taper. (5) The helical antenna device according to any one of claims 1 to 3, wherein the dielectric antenna has an exponential decay curve taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8844386U JPS621409U (en) | 1986-06-12 | 1986-06-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8844386U JPS621409U (en) | 1986-06-12 | 1986-06-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS621409U true JPS621409U (en) | 1987-01-07 |
Family
ID=30641582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8844386U Pending JPS621409U (en) | 1986-06-12 | 1986-06-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS621409U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3383695A (en) * | 1965-12-22 | 1968-05-14 | Navy Usa | Helical antenna with end distortion to improve polarization purity |
| US3633210A (en) * | 1967-05-26 | 1972-01-04 | Philco Ford Corp | Unbalanced conical spiral antenna |
-
1986
- 1986-06-12 JP JP8844386U patent/JPS621409U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3383695A (en) * | 1965-12-22 | 1968-05-14 | Navy Usa | Helical antenna with end distortion to improve polarization purity |
| US3633210A (en) * | 1967-05-26 | 1972-01-04 | Philco Ford Corp | Unbalanced conical spiral antenna |
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