JPH01305740A - Circularly polarized wave antenna - Google Patents
Circularly polarized wave antennaInfo
- Publication number
- JPH01305740A JPH01305740A JP13774388A JP13774388A JPH01305740A JP H01305740 A JPH01305740 A JP H01305740A JP 13774388 A JP13774388 A JP 13774388A JP 13774388 A JP13774388 A JP 13774388A JP H01305740 A JPH01305740 A JP H01305740A
- Authority
- JP
- Japan
- Prior art keywords
- circularly polarized
- combining
- frequency
- antenna
- branching
- 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
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000010287 polarization Effects 0.000 claims description 3
- 230000010363 phase shift Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
- Waveguide Aerials (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は円偏波アンテナに関し、特に周波数を共用し複
数周波数の電波の送受信を行なう円偏波アンテナに関す
る。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a circularly polarized antenna, and particularly to a circularly polarized antenna that shares a frequency and transmits and receives radio waves of multiple frequencies.
従来、この種のアンテナは、第２図に示すように位相調
整部分はポーラライザとして構成されたλｇ／８おきに
配設された移相調相ネジの挿入長を変化することにより
、対象とする各周波数を同時に位相調整している。第２
図において、円偏波輻射器は、円錐ホーンと円形導波管
の組合せを例とし、またλｇは円形導波管内波長である
。Conventionally, in this type of antenna, the phase adjustment part is adjusted by changing the insertion length of phase shift screws arranged every λg/8, which are configured as polarizers, as shown in Figure 2. The phase of each frequency is adjusted simultaneously. Second
In the figure, the circularly polarized radiator is an example of a combination of a conical horn and a circular waveguide, and λg is the wavelength within the circular waveguide.
上述した従来を円偏波アンテナは、ポーラライザの各位
相調整用ネジを挿入する寸法によって位相調整を行って
いた。しかしながら、各位相調整用ネジの挿入量と各周
波数における位相の動き方が一致しないため、ある周波
数に対する円偏波を良くしても他の周波数を円偏波が悪
くなるという状態を調整しつつ実施する必要があるため
、各周波特性を良くすることが難かしいという欠点があ
る。In the conventional circularly polarized antenna described above, phase adjustment was performed by adjusting the dimensions of each phase adjustment screw of the polarizer. However, since the insertion amount of each phase adjustment screw and the way the phase moves at each frequency do not match, it is necessary to adjust the situation where even if the circularly polarized wave is improved for one frequency, the circularly polarized wave for other frequencies becomes worse. Since this method needs to be implemented, it has the disadvantage that it is difficult to improve each frequency characteristic.
本発明の目的は上述した欠点を除去し、各周波数に対す
る位相調整を大幅に簡素化した円偏波アンテナを提供す
ることにある。An object of the present invention is to provide a circularly polarized antenna that eliminates the above-mentioned drawbacks and greatly simplifies phase adjustment for each frequency.
本発明の円偏波アンテナは、それぞれ円偏波成分でかつ
偏波方向が互いに直交する第１および第２の直線偏波に
結合する第１および第２のアンテナ端子を有する円偏波
輻射器と、前記第１および第２のアンテナ端子にそれぞ
れ接続する合波側端子とともに周波数ｆ、、ｆ２・・・
ｆｎに対応するｎ個の分波側端子を有し前記合波側端子
もしくは分波側端子から入力する前記周波数を含む信号
の分波もしくは合波出力を得る第１および第２の、分合
波器と、前記第１および第２の分合波器それぞれの同一
周波数に対応する分波側端子の組合せ相互間にπ／２の
移相差を付与するよう結合した可変移相器と、前記移相
器を通した前記第１および第２の分合波器の分波出力の
同一周波数ごとの組合せを分岐側から受けこれを電力合
成して合成側に出力するかもしくは前記同一周波数こと
を周波数の入力電力を合成側がら受けこれを分岐して分
岐側に出力する電力合成分岐器とを備えて構成される。The circularly polarized antenna of the present invention is a circularly polarized radiator having first and second antenna terminals that couple to first and second linearly polarized waves, each of which is a circularly polarized component and whose polarization directions are orthogonal to each other. and the frequencies f, , f2 . . . together with the multiplexing side terminals connected to the first and second antenna terminals, respectively.
first and second splitter/combiners having n branching side terminals corresponding to fn and obtaining a branching or combining output of a signal including the frequency inputted from the combining side terminal or the branching side terminal; a variable phase shifter coupled to provide a phase shift difference of π/2 between the combinations of a waveform generator and demultiplexing side terminals corresponding to the same frequency of each of the first and second demultiplexers; A combination of the demultiplexed outputs of the first and second demultiplexers passed through a phase shifter for each same frequency is received from the branching side, and the power is combined and output to the combining side, or the same frequency is outputted to the combining side. The power combining/branching device receives frequency input power from the combining side, branches it, and outputs it to the branching side.
次に図面を参照して本発明の詳細な説明する。 Next, the present invention will be described in detail with reference to the drawings.
第１図は本発明の円偏波アンテナの一実施例を示す構成
図である。第１図に示す実施例の構成は、円錐ホーンと
円形導波管から成り、それぞれ円偏波成分かつ偏波方向
が互いに直行する第１および第２の直線偏波に結合する
第１のアンテナ端子１１と第２のアンテナ端子１２を有
する円偏波輻射器１、第１のアンテナ端子１１および第
２のアンテナ端子１２に接続する合波側端子と、周波数
ｆ、、ｆ２・・・ｆｎに対応するｎ個の分波側端子を有
し、合波側端子ころ入力する信号はｎ個の周波数ｆ１＋
ｆ２＋・・・ｆｎに分岐して合波側端子に出力し、また
、分波側端子から入力する周波数ｆ１゜ｆ２．・・・ｆ
７の信号を合波しれ合波側端子に出力する第１の分合波
器２ａ、第２の分合波器２ｂ。FIG. 1 is a configuration diagram showing an embodiment of a circularly polarized antenna of the present invention. The configuration of the embodiment shown in FIG. 1 is composed of a conical horn and a circular waveguide, and a first antenna couples to first and second linearly polarized waves, each of which is a circularly polarized wave component and whose polarization directions are orthogonal to each other. A circularly polarized wave radiator 1 having a terminal 11 and a second antenna terminal 12, a multiplexing side terminal connected to the first antenna terminal 11 and the second antenna terminal 12, and a frequency f, f2...fn. It has n corresponding branching side terminals, and the signal input to the combining side terminal has n frequencies f1+.
The frequencies f2+...fn are output to the multiplexing side terminal, and the frequencies f1゜f2... are input from the demultiplexing side terminal. ... f
A first demultiplexer/multiplexer 2a and a second demultiplexer/multiplexer 2b which combine the signals of No. 7 and output them to the multiplexing side terminal.
第１および第２の分合波器２ａおよび２ｂの同一周波数
に対応する分波側端子の組合せ相互間にπ／２の移相差
を付与するように結合する可変移相器３−１ ａ、 １
ｂ、 ３−２ａ、 ２ｂ、 ・３−ｎａ、ｎｂ、これ
ら可変移送記を通した同一周波数ごとの組合せを分岐側
から受けて電力合成し合成側に出力するか、合成側から
同じ周波数の信号を受けてこれを等分割するように分岐
して分岐側に出力する電力合成分岐器４−１〜４−ｎを
備えて成る。a variable phase shifter 3-1 a that couples so as to give a phase shift difference of π/2 between the combinations of demultiplexing side terminals corresponding to the same frequency of the first and second demultiplexing multiplexers 2a and 2b; 1
b, 3-2a, 2b, ・3-na, nb, the combination of the same frequency through these variable transfer registers is received from the branch side, the power is combined and output to the combining side, or the signal of the same frequency is received from the combining side It is equipped with power combiner/branchers 4-1 to 4-n which receive the power, branch it into equal parts, and output it to the branch side.
次に、第１図の実施例の動作について説明する。Next, the operation of the embodiment shown in FIG. 1 will be explained.
本実施例の動作は、送受信が可逆的に実施可能であるの
で、受信の場合を例として説明する。The operation of this embodiment will be explained using the case of reception as an example, since transmission and reception can be carried out reversibly.
円偏波輻射器１に入力して電波は、入力電波の直交成分
Ｅ、、Ｅ２をそれぞれ、第１のアンテナ端子１１と第２
のアンテナ端子１２を介して得る。The radio waves input to the circularly polarized radiator 1 are orthogonal components E, E2 of the input radio waves to the first antenna terminal 11 and the second antenna terminal, respectively.
is obtained through the antenna terminal 12 of.
第１のアンテナ端子１１と第２のアンテナ端子１２は、
このような目的に合致するように、その位置を設定され
たアンテナ端子である。The first antenna terminal 11 and the second antenna terminal 12 are
The position of the antenna terminal is set to meet this purpose.
第１のアンテナ端子１１および第２のアンテナ端子１２
を介して入力する信号はそれぞれ第１の分合波器２ａと
第２の分合波器２ｂの合波側から供給され、ｆｌ、ｆ２
．・・・ｆ、の周波数成分に分岐されて分波側に出力さ
れる。First antenna terminal 11 and second antenna terminal 12
The signals inputted through are respectively supplied from the combining sides of the first demultiplexer/multiplexer 2a and the second demultiplexer/multiplexer 2b.
．． . . . f, which are branched into frequency components and output to the demultiplexing side.
こうして、それぞれｆ、、ｆ２．・・・ｆ、に分波され
た直交成分は、同一周波数ごとの組合せで可変移相器３
−１ａ、ｌｂ、３−２ａ、２ｂ、−３−ｎａ、ｎｂに供
給される。Thus, f, , f2 . ...f, the orthogonal components branched into the variable phase shifter 3 are combined at the same frequency.
-1a, lb, 3-2a, 2b, -3-na, nb.
可変移相器３−１ ａ、ｌｂ、３−２ａ、２ｂ。Variable phase shifter 3-1 a, lb, 3-2a, 2b.
・・・３−ｎａ、ｎｂはそれぞれ、こうして供給される
同一周波数の互いに直交成分の組に対しπ／２の移相差
を付与し電力合成分岐器４−１．４−２゜・・・４−ｎ
に供給する。...3-na, nb respectively give a phase shift difference of π/2 to the set of mutually orthogonal components of the same frequency supplied in this way, and the power combiner/brancher 4-1.4-2°...4 -n
supply to.
電力合成分岐器４−１．４−２．・・・４−ｎはこれら
入力を合成して、周波数ｆ、、ｆ２・・・ｆ、における
円偏波出力を得る。Power combiner/brancher 4-1.4-2. ...4-n synthesizes these inputs to obtain circularly polarized wave outputs at frequencies f, , f2...f.
上述し実施例は受信の場合を例としているが、送信の場
合は電力合成分岐器４−１．４−２．・・・４−ｎの合
成側から周波数ｆ１＋ｆ２＋・・・ｆ、の電力を入力し
、上吊した動作フローと全く逆に、同一構成要素を利用
して第１の端子１１と第２の端子１２に所要の直交成分
としての信号を提供し、円偏波輻射器１から円偏波を送
出せしめることも容易に実施できることは明らかである
。The above-mentioned embodiment takes the case of reception as an example, but in the case of transmission, the power combiner/branchers 4-1, 4-2. . . 4-n inputs power of frequency f1+f2+ . . . It is obvious that it is also easily possible to provide signals as required orthogonal components to the circularly polarized wave radiator 1 and cause the circularly polarized wave to be emitted from the circularly polarized wave radiator 1.
また、本実施例では、同一周波数に対する可偏位相器を
２個ずつ利用しているか、この代りにいずれか一方のみ
によってπ／２の位相差を付寄する構成としても実施可
能である。Further, in this embodiment, two polarized phase shifters for the same frequency are used, or alternatively, it is possible to implement a configuration in which only one of them is used to impart a phase difference of π/2.
このようにして、容易に各周波数成分に対する位相調整
を実施することができる。In this way, phase adjustment for each frequency component can be easily performed.
以上説明したように本発明によれば、円偏波アンテナに
おいて直交する電界成分を各周波数ごとに分波して位相
差を与えて合成するが、もしくは各周波数ごとの入力を
分岐して位相差を与えて合波することにより、著しく位
相差調整を簡素化して複数の周波数を共用する円偏波ア
ンテナが実施できるという効果がある。As explained above, according to the present invention, orthogonal electric field components in a circularly polarized antenna are demultiplexed for each frequency and synthesized by giving a phase difference, or alternatively, the input for each frequency is split and the phase difference is By applying and combining the signals, there is an effect that the phase difference adjustment is significantly simplified and a circularly polarized antenna that shares a plurality of frequencies can be implemented.
第１図は本発明の円偏波アンテナの一実施例を構成図、
第２図は従来の円偏波アンテナの一例を示す構成図であ
る。
１・・・円偏波輻射器、２ａ・・・第１の分合波器、２
ｂ ・・・第２の分合波器、３−１ａ、ｌｂ 〜３−
ｎａ、ｎｂ・・・可変移相器、４−１〜４−ｎ・・・電
力合成分岐器、１１・・・第１のアンテナ端子、１２・
・・第２のアンテナ端子、５・・・ポーラライザ、６ａ
。
６ｂ、６ｃ・・・位相調整ネジ、７・・・円偏波輻射器
。FIG. 1 is a configuration diagram of an embodiment of the circularly polarized antenna of the present invention.
FIG. 2 is a configuration diagram showing an example of a conventional circularly polarized antenna. 1... Circularly polarized radiator, 2a... First demultiplexer/multiplexer, 2
b...Second demultiplexer/multiplexer, 3-1a, lb ~3-
na, nb... variable phase shifter, 4-1 to 4-n... power combining/branching device, 11... first antenna terminal, 12.
...Second antenna terminal, 5...Polarizer, 6a
. 6b, 6c... Phase adjustment screw, 7... Circularly polarized radiator.
Claims (1)
１および第２の直線偏波に結合する第１および第２のア
ンテナ端子を有する円偏波輻射器と、 前記第１および第２のアンテナ端子にそれぞれ接続する
合波側端子とともにそれぞれ周波数ｆ＿１、ｆ＿２・・
・ｆ＿ｎに対応するｎ個の分波側端子を有し前記合波側
端子もしくは分波側端子から入力する前記周波数を含む
信号の分波もしくは合波出力を得る第１および第２の分
合波器と、 前記第１および第２の分合波器のそれぞれの同一周波数
に対応する分波側端子の組合せ相互間にπ／２の位相差
を付与するように結合した可変移相器と、 前記可変移相器を通した前記第１および第２の分合波器
の分波出力の同一周波数ごとの組合せを分岐側から受け
これを電力合成して合成側に出力するかもしくは前記同
一周波数ごとの周波数の入力電力を合成側から受けてこ
れを分岐して分岐側に出力する電力合成分岐器と、 を備えて少なくとも２周波による円偏波送受信を行なう
ことを特徴とする円偏波アンテナ。[Scope of Claims] A circularly polarized radiator having first and second antenna terminals that couple to first and second linearly polarized waves, each of which is a circularly polarized component and whose polarization directions are orthogonal to each other; Frequencies f_1, f_2, . . . with multiplexing side terminals connected to the first and second antenna terminals, respectively.
・First and second splitting/combining units having n branching side terminals corresponding to f_n and obtaining a branching or combining output of a signal including the frequency inputted from the combining side terminal or the branching side terminal. a variable phase shifter coupled to provide a phase difference of π/2 between the combinations of demultiplexer and demultiplexer terminals corresponding to the same frequency of the first and second demultiplexers; , receiving from the branch side a combination of the same frequency of the demultiplexed outputs of the first and second demultiplexers that have passed through the variable phase shifter, and outputting the combined power to the combining side; A power combiner/brancher that receives the input power of each frequency from the combining side, branches it, and outputs it to the branching side, and performs circularly polarized wave transmission and reception using at least two frequencies. antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63137743A JP2580713B2 (en) | 1988-06-03 | 1988-06-03 | Circularly polarized antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63137743A JP2580713B2 (en) | 1988-06-03 | 1988-06-03 | Circularly polarized antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01305740A true JPH01305740A (en) | 1989-12-11 |
| JP2580713B2 JP2580713B2 (en) | 1997-02-12 |
Family
ID=15205793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63137743A Expired - Lifetime JP2580713B2 (en) | 1988-06-03 | 1988-06-03 | Circularly polarized antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2580713B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015005994A (en) * | 2009-04-13 | 2015-01-08 | ビアサット・インコーポレイテッド | Multi-beam active phased array architecture |
-
1988
- 1988-06-03 JP JP63137743A patent/JP2580713B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015005994A (en) * | 2009-04-13 | 2015-01-08 | ビアサット・インコーポレイテッド | Multi-beam active phased array architecture |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2580713B2 (en) | 1997-02-12 |
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