JPS63139406A - Slot antenna for circularly polarized wave - Google Patents
Slot antenna for circularly polarized waveInfo
- Publication number
- JPS63139406A JPS63139406A JP28694286A JP28694286A JPS63139406A JP S63139406 A JPS63139406 A JP S63139406A JP 28694286 A JP28694286 A JP 28694286A JP 28694286 A JP28694286 A JP 28694286A JP S63139406 A JPS63139406 A JP S63139406A
- Authority
- JP
- Japan
- Prior art keywords
- feeding
- circularly polarized
- slot
- ground conductor
- polarized wave
- 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 abstract description 12
- 238000010586 diagram Methods 0.000 description 4
- 235000006732 Torreya nucifera Nutrition 0.000 description 2
- 244000111306 Torreya nucifera Species 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 1
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は超高周波数以上の周波数帯で用いるアレーアン
テナの構成素子アンテナである円偏波スロットアンテナ
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a circularly polarized slot antenna that is a component antenna of an array antenna used in a frequency band higher than an ultra-high frequency.
従来の円偏波スロットアンテナは、第5図に示すように
、スロットアンテナ20とストリップダイポールアンテ
ナ21とを組み合わせ、ストリップダイポールアンテナ
21により縦方向の電界を、かつスロットアンテナ20
により横方向の電界を発生させ、各々に給電する給電ラ
イン22の位置を変えることにより、位相差を与えて円
偏波を発生している。なお、第4図中、参照数字5は地
導体である。A conventional circularly polarized slot antenna, as shown in FIG.
By generating a horizontal electric field and changing the position of the power supply line 22 that feeds each of them, a phase difference is given and circularly polarized waves are generated. In addition, in FIG. 4, reference number 5 is a ground conductor.
上述した従来の円偏波スロットアンテナはストリップダ
イポールアンテナとスロットアンテナとに同一の給電ラ
インにより給電するため、インピーダンス整合が困難で
ある。また、ストリップダイポールアンテナとスロット
アンテナとの位相中心がずれているため、広い角度範囲
にわたって円偏波をよくすることができない。In the conventional circularly polarized slot antenna described above, impedance matching is difficult because power is fed to the strip dipole antenna and the slot antenna through the same feed line. Furthermore, since the phase centers of the strip dipole antenna and the slot antenna are shifted, circular polarization cannot be improved over a wide angular range.
本発明の円偏波スロットアンテナは位相中心を同一とし
地導体に90°等間隔に設けた複数のスロットと、前記
スロットに個別に対応する複数の給電ラインと、前記給
電ラインを通して前記スロットに等振幅90°位相差給
電を行う給電回路とを備える。The circularly polarized slot antenna of the present invention includes a plurality of slots having the same phase center and provided at equal intervals of 90 degrees on a ground conductor, a plurality of feed lines corresponding to the slots, and a plurality of feed lines that are connected to the slots through the feed lines. and a power supply circuit that performs power supply with an amplitude of 90° phase difference.
以下、本発明の実施例について図面を参照して説明する
。Embodiments of the present invention will be described below with reference to the drawings.
本発明の第1の実施例の円偏波スロットアンテナを示す
第1図及び第2図を参照すると、1は地導体5に十字に
切って設けた直交スロットである。Referring to FIGS. 1 and 2, which show a circularly polarized slot antenna according to a first embodiment of the present invention, reference numeral 1 designates orthogonal slots cut into a ground conductor 5 in the form of a cross.
2.3は給電ライン及び4は給電回路であり、地導体5
あ他方の面側に誘電体19を介して設けである。直交ス
ロットlの縦方向のスロット1a及び横方向のスロット
1bに給電ライン2.3と給電回路4とにより等振幅9
0°位相差給電を行うことにより円偏波を得る。2.3 is a power supply line, 4 is a power supply circuit, and a ground conductor 5
It is provided on the other side with a dielectric 19 interposed therebetween. Equal amplitude 9 is provided by the power supply line 2.3 and the power supply circuit 4 in the vertical slot 1a and the horizontal slot 1b of the orthogonal slot l.
Circularly polarized waves are obtained by performing 0° phase difference power feeding.
第3図及び第4図は本発明の第2の実施例の円偏波スロ
ットアンテナを示し、地導体5に位相中心を同一とじ9
0°等間隔に形成されたスロット6.7,8.9と、こ
れらのスロットに個別に対応する給電ライン10.11
,12.13と、給電回路14,15.16とから構成
されている。3 and 4 show a circularly polarized slot antenna according to a second embodiment of the present invention, in which the phase center is fixed to the ground conductor 5 and 9
Slots 6.7 and 8.9 formed at equal intervals of 0°, and power supply lines 10.11 that individually correspond to these slots.
, 12.13, and power supply circuits 14, 15.16.
この構成において、給電回路14,15.16からスロ
ット6.7.8.9に等振幅90°位相差給電を行うこ
とにより円偏波を得る。なお、第3図及び第4図中、参
照数字19は誘電体である。In this configuration, circularly polarized waves are obtained by feeding equal amplitude and 90° phase difference from the feeding circuits 14, 15.16 to the slots 6.7.8.9. Note that in FIGS. 3 and 4, reference numeral 19 indicates a dielectric material.
上記第1及び第2の実施例において、誘電体19を断面
水平方向に2分割して支持棒を介在し、スロットと給電
ライン及び給電回路との間に空隙を設けて積層する構成
を採用してもよい。In the first and second embodiments described above, a configuration is adopted in which the dielectric 19 is divided into two horizontally in cross section, a support rod is interposed, and a gap is provided between the slot, the power supply line, and the power supply circuit, and the layers are stacked. It's okay.
以上説明したように本発明によれば、地導体に設けた複
数のスロットに対してそれぞれ個別の給電ラインを通し
て給電することにより、インピーダンスの整合が容易で
ある。また、複数のスロットが位相中心を同一とするた
め広い角度にわたって円偏波率をよくすることができる
。As described above, according to the present invention, impedance matching can be easily achieved by feeding power to a plurality of slots provided in a ground conductor through separate power supply lines. Furthermore, since the plurality of slots have the same phase center, it is possible to improve the circular polarization over a wide angle.
第1図及び第2図は本発明の第1の実施例を示す構成図
、第3図及び第4図は本発明の第2の実施例を示す構成
図、第5図は従来の円偏波スロットアンテナの一例を示
す構成図である。
1 、 1 a、 1 b 、 6〜9−スロット、
2,3゜lO〜13・・・給電ライン、4.14〜16
・・・給電回路、5・・・地導体、19・・・誘電体。
茅1 図
第3図
茅501 and 2 are block diagrams showing a first embodiment of the present invention, FIGS. 3 and 4 are block diagrams showing a second embodiment of the present invention, and FIG. 5 is a block diagram showing a conventional circular deflection. FIG. 2 is a configuration diagram showing an example of a wave slot antenna. 1, 1a, 1b, 6-9-slot,
2,3゜lO~13...Power supply line, 4.14~16
...Power supply circuit, 5...Ground conductor, 19...Dielectric material. Kaya 1 Figure 3 Kaya 50
Claims (1)
のスロットと、前記スロットに個別に対応する複数の給
電ラインと、前記給電ラインを通して前記スロットに等
振幅90°位相差給電を行う給電回路とを備えることを
特徴とする円偏波スロットアンテナ。A plurality of slots having the same phase center and provided at equal intervals of 90 degrees on a ground conductor, a plurality of power supply lines individually corresponding to the slots, and a power supply supplying power to the slots with an equal amplitude and a phase difference of 90 degrees through the power supply lines. A circularly polarized slot antenna comprising a circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28694286A JPS63139406A (en) | 1986-12-01 | 1986-12-01 | Slot antenna for circularly polarized wave |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28694286A JPS63139406A (en) | 1986-12-01 | 1986-12-01 | Slot antenna for circularly polarized wave |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS63139406A true JPS63139406A (en) | 1988-06-11 |
Family
ID=17710948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP28694286A Pending JPS63139406A (en) | 1986-12-01 | 1986-12-01 | Slot antenna for circularly polarized wave |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS63139406A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017177495A1 (en) * | 2016-04-15 | 2017-10-19 | 上海安费诺永亿通讯电子有限公司 | Circularly polarized antenna and wireless communication device thereof |
CN111276078A (en) * | 2020-04-10 | 2020-06-12 | 南京达斯琪数字科技有限公司 | Rotary display device based on double-circular-polarization bidirectional data transmission module |
-
1986
- 1986-12-01 JP JP28694286A patent/JPS63139406A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017177495A1 (en) * | 2016-04-15 | 2017-10-19 | 上海安费诺永亿通讯电子有限公司 | Circularly polarized antenna and wireless communication device thereof |
CN111276078A (en) * | 2020-04-10 | 2020-06-12 | 南京达斯琪数字科技有限公司 | Rotary display device based on double-circular-polarization bidirectional data transmission module |
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