JPH04256201A - Circular-linear polarized wave converter - Google Patents
Circular-linear polarized wave converterInfo
- Publication number
- JPH04256201A JPH04256201A JP3950291A JP3950291A JPH04256201A JP H04256201 A JPH04256201 A JP H04256201A JP 3950291 A JP3950291 A JP 3950291A JP 3950291 A JP3950291 A JP 3950291A JP H04256201 A JPH04256201 A JP H04256201A
- Authority
- JP
- Japan
- Prior art keywords
- probes
- feeding
- power supply
- circular
- dielectric plate
- 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
- 239000000523 sample Substances 0.000 claims abstract description 55
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 230000010287 polarization Effects 0.000 claims description 17
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000005859 coupling reaction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 239000011889 copper foil Substances 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 238000005388 cross polarization Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Waveguide Switches, Polarizers, And Phase Shifters (AREA)
- Waveguide Aerials (AREA)
Abstract
Description
【０００１】0001
【産業上の利用分野】本発明は、円偏波の電波を直線偏
波の電波に変換する円−直線偏波変換器に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circular-to-linear polarization converter for converting circularly polarized radio waves into linearly polarized radio waves.
【０００２】0002
【従来の技術】従来、上記のような円−直線偏波変換器
としては、例えば図１０及び図１１に示すようなものが
あった。これは、例えばパラボラアンテナの一次放射器
におけるホーン部２に繋がる導波管部４内に設けたもの
で、この導波管部４の管軸に対してほぼ直角に配置され
た誘電体板６を有している。この誘電体板６のホーン部
２と反対側の面には、２つの給電プローブ８、１０が、
互いに直角に導波管部４内に突出するように設けられて
いる。これら給電プローブ８、１０は、伝送線路１２、
１４、結合用伝送線路１６を介してコネクタ１８に接続
されているが、伝送線路１２、１４は、給電プローブ８
、１０への給電に約９０度の位相差を与えるために、λ
ｇ ／４（λｇ は伝送波長）だけ長さが異ならせてあ
る。また、誘電体板６のホーン部２側の面には正方形の
パッチ素子２０が設けられている。このパッチ素子２０
は、給電プローブ８に沿う直線と、給電プローブ１０に
沿う直線との交点に、パッチ素子２０の中心が位置する
ように配置され、その周縁部が給電プローブ８、１０の
先端部と接触するような大きさにパッチ素子２０は形成
されている。なお、２２は、結合用伝送線路１６からの
放射を防止するための遮断部で、また誘電体板６におけ
る導波管部４内に位置していない部分の上下両面にも、
遮蔽用の接地パターン部２４が形成されている。各給電
プローブ８、１０、伝送線路１２、１４、結合用伝送線
路１６、パッチ素子２０、接地パターン部２４は、誘電
体板６の上下両面に形成された銅箔をエッチングするこ
とによって形成され、その上に半田メッキが施されてい
る。2. Description of the Related Art Conventionally, there have been circular-to-linear polarization converters as described above, such as those shown in FIGS. 10 and 11, for example. This is provided, for example, in a waveguide section 4 connected to a horn section 2 in a primary radiator of a parabolic antenna, and a dielectric plate 6 disposed approximately perpendicularly to the tube axis of this waveguide section 4. have. Two power supply probes 8 and 10 are provided on the surface of the dielectric plate 6 opposite to the horn portion 2.
They are provided so as to protrude into the waveguide section 4 at right angles to each other. These power supply probes 8 and 10 include a transmission line 12,
14, is connected to the connector 18 via the coupling transmission line 16, but the transmission lines 12 and 14 are connected to the feeding probe 8
, 10 to give a phase difference of about 90 degrees, λ
The lengths are different by g/4 (λg is the transmission wavelength). Furthermore, a square patch element 20 is provided on the surface of the dielectric plate 6 on the horn portion 2 side. This patch element 20
is arranged so that the center of the patch element 20 is located at the intersection of a straight line along the power supply probe 8 and a straight line along the power supply probe 10, and the peripheral edge thereof is in contact with the tips of the power supply probes 8 and 10. The patch element 20 is formed to have a size of . Note that 22 is a blocking portion for preventing radiation from the coupling transmission line 16, and also on both upper and lower surfaces of the portion of the dielectric plate 6 that is not located within the waveguide portion 4.
A ground pattern portion 24 for shielding is formed. Each feed probe 8, 10, transmission line 12, 14, coupling transmission line 16, patch element 20, and ground pattern section 24 are formed by etching copper foil formed on both the upper and lower surfaces of the dielectric plate 6, Solder plating is applied on top of it.
【０００３】0003
【発明が解決しようとする課題】上記の円−直線偏波変
換器では、給電プローブ８、１０が９０度異なる角度に
配置されていることと、給電プローブ８、１０に給電さ
れる信号が９０度の位相差を有していることとが相まっ
て、コネクタ１８から供給された直線偏波の信号は円偏
波の信号に変換され、導波管部４及びホーン部２を介し
て放射される。一次放射器は可逆性を有しているので、
ホーン部２を介して導波管部４に入射した円偏波の信号
は、直線偏波の信号に変換されて、コネクタ１８に供給
される。図３に符号Ａで示すのは、この一次放射器のｆ
０（１１．８５ＧＨＺ ）を中心周波数とする帯域幅１
ＧＨＺ における定在波比を示したもので、最良である
中心周波数ｆ０においてでさえ、約１．１７５でしかな
い。また、図１２は、この一次放射器の主偏波の指向特
性を示したもので、サイドローブレベルが約２３ｄＢあ
り、明確にメインローブと第１及び第２のサイドローブ
とが切れていない。また図１３は、この一次放射器の交
差偏波の指向特性を示したもので、０度の点では標準規
格値２５ｄＢよりも１ｄＢ小さい２４ｄＢしかなく、電
気特性上好ましくない。[Problems to be Solved by the Invention] In the above circular-linear polarization converter, the feeding probes 8 and 10 are arranged at angles different from each other by 90 degrees, and the signals fed to the feeding probes 8 and 10 are arranged at angles of 90 degrees. Coupled with the fact that there is a phase difference of 100 degrees, the linearly polarized signal supplied from the connector 18 is converted into a circularly polarized signal, and is radiated via the waveguide section 4 and the horn section 2. . Since the primary radiator has reversibility,
A circularly polarized signal that enters the waveguide section 4 via the horn section 2 is converted into a linearly polarized signal and supplied to the connector 18 . What is indicated by the symbol A in FIG. 3 is f of this primary radiator.
Bandwidth 1 with center frequency at 0 (11.85GHz)
This shows the standing wave ratio at GHZ, and even at the best center frequency f0, it is only about 1.175. Moreover, FIG. 12 shows the directivity characteristics of the main polarized wave of this primary radiator, and the side lobe level is about 23 dB, and the main lobe and the first and second side lobes are clearly not separated. Further, FIG. 13 shows the cross-polarized directivity characteristic of this primary radiator, and at the 0 degree point, it is only 24 dB, which is 1 dB smaller than the standard value of 25 dB, which is unfavorable in terms of electrical characteristics.
【０００４】本発明は、上記の円−直線偏波変換器より
も特性が良好な円−直線偏波変換器を提供することを目
的とする。An object of the present invention is to provide a circular-to-linear polarization converter having better characteristics than the above-mentioned circular-to-linear polarization converter.
【０００５】[0005]
【課題を解決するための手段】上記の目的を達成するた
めに、本発明は、誘電体板の一方の面に互いにほぼ直角
に２つの給電プローブを配置し、誘電体板の一方の面に
伝送線路を配置し、これによって２つの給電プローブを
入出力部に接続する。これら給電プローブの一方は他方
と約λｇ ／４（λｇ は伝送波長）長さが異なってい
る。
これは、２つの給電プローブに９０度の位相差を持った
信号を供給するためである。誘電体板の一方の面と反対
側に、２つの給電プローブと電磁結合したパッチ素子が
設けられている。このパッチ素子は、２つの給電プロー
ブをそれぞれ通る直線の交点を通り、両給電プローブに
対してそれぞれ約４５度の角度をなす直線上であって、
上記の交点より両給電プローブ側に偏った位置に設けら
れている。[Means for Solving the Problems] In order to achieve the above object, the present invention provides two feeding probes arranged substantially perpendicularly to each other on one side of a dielectric plate, A transmission line is arranged to connect the two feed probes to the input/output section. One of these feed probes differs in length from the other by approximately λg /4 (λg is the transmission wavelength). This is to supply signals with a phase difference of 90 degrees to the two power supply probes. A patch element electromagnetically coupled to two power supply probes is provided on one side and the opposite side of the dielectric plate. The patch element is on a straight line passing through the intersection of the straight lines passing through the two feeding probes and making an angle of about 45 degrees with respect to both feeding probes,
It is provided at a position biased toward both power supply probes from the above-mentioned intersection.
【０００６】[0006]
【作用】本発明によれば、２つの給電プローブが９０度
異なる位置に配置されており、かつ９０度の位相差を有
する信号が供給されるので、直線偏波の信号を円偏波の
信号に変換することができる。この円偏波の信号は、２
つの給電プローブと電磁結合しているパッチ素子を介し
て放射される。パッチ素子は、２つの給電プローブをそ
れぞれ通る直線の交点を通り、両給電プローブに対して
それぞれ約４５度の角度をなす直線上であって、上記の
交点より両給電プローブ側に偏った位置に設けられてい
るので、定在波比、主偏波の指向特性及び交差偏波の指
向特性が改善される。[Operation] According to the present invention, two feeding probes are arranged at 90 degrees different positions and signals having a phase difference of 90 degrees are supplied, so that a linearly polarized signal is converted into a circularly polarized signal. can be converted to . This circularly polarized signal is 2
It is radiated through a patch element that is electromagnetically coupled to two feeding probes. The patch element is located on a straight line that passes through the intersection of the straight lines passing through the two power supply probes and forms an angle of approximately 45 degrees with respect to both power supply probes, and is located at a position that is biased toward both power supply probes from the above-mentioned intersection. Since this is provided, the standing wave ratio, the directivity characteristics of main polarized waves, and the directivity characteristics of cross polarized waves are improved.
【０００７】[0007]
【実施例】第１の実施例を図１乃至図５に示す。図１及
び図２に示すように、この実施例も、この発明による円
−直線偏波変換器を一次放射器に実施したもので、ホー
ン部３０と、これに繋がる円形導波管部３２とを備えた
本体部３４を有している。本体部３４には、誘電体板３
６が、その一部が導波管部３２内に位置するように設け
られている。この誘電体板３６は、導波管部３２の管軸
に対してほぼ直角に配置されている。この誘電体板３６
のホーン部３０とは反対側の面には、導波管部３２内に
突出するように、かつ互いに９０度の角度をなすように
２つの給電プローブ３８、４０が配置されている。これ
ら給電プローブ３８、４０は、伝送線路４２、４４を介
して結合用伝送線路４６に接続され、この結合用伝送線
路４６は、コネクタ４８に接続されている。伝送線路４
２、４４は、上述した従来のものと同様にλｇ ／４（
λｇ は伝送波長）だけ長さが異なっており、これによ
ってコネクタ４８から給電プローブ３８、４０に供給さ
れた信号は９０度の位相差を有するものとなる。Embodiment A first embodiment is shown in FIGS. 1 to 5. As shown in FIGS. 1 and 2, this embodiment also implements the circular-to-linear polarization converter according to the present invention in the primary radiator, and includes a horn section 30 and a circular waveguide section 32 connected thereto. It has a main body portion 34 equipped with. The main body portion 34 includes a dielectric plate 3
6 is provided so that a portion thereof is located within the waveguide section 32. This dielectric plate 36 is arranged substantially perpendicular to the tube axis of the waveguide section 32. This dielectric plate 36
Two power supply probes 38 and 40 are arranged on the opposite side of the horn section 30 so as to protrude into the waveguide section 32 and form an angle of 90 degrees with each other. These power supply probes 38 and 40 are connected to a coupling transmission line 46 via transmission lines 42 and 44, and this coupling transmission line 46 is connected to a connector 48. Transmission line 4
2 and 44 are λg /4(
λg is the transmission wavelength), so that the signals supplied from the connector 48 to the feed probes 38, 40 have a phase difference of 90 degrees.
【０００８】誘電体板３６のホーン部３０側の面には、
給電プローブ３８、４０のマッチング結合用素子として
作用するパッチ素子５０が設けられている。このパッチ
素子５０は、図１から明らかなように正方形に形成され
ている。このパッチ素子５０は、給電プローブ３８に沿
う直線と、給電プローブ４０に沿う直線との交点５２を
通り、給電プローブ３８、４０に対して４５度をなす直
線５４上にあり、しかも、その直線における交点５２よ
りも給電プローブ３８、４０側によった位置に、両給電
プローブ３８、４０と重なりあわないように配置されて
いる。On the surface of the dielectric plate 36 on the horn portion 30 side,
A patch element 50 is provided which acts as a matching coupling element for the feed probes 38,40. This patch element 50 is formed in a square shape, as is clear from FIG. This patch element 50 is located on a straight line 54 that passes through an intersection 52 between a straight line along the power supply probe 38 and a straight line along the power supply probe 40 and that forms an angle of 45 degrees with respect to the power supply probes 38 and 40, It is arranged at a position closer to the power supply probes 38, 40 than the intersection 52 so as not to overlap with both the power supply probes 38, 40.
【０００９】５６は、結合用伝送線路からの放射を防止
するための遮断部である。また、誘電体板３６の導波管
部３２内に位置していない部分の上下両面には、本体部
３４と接触するように接地パターン部５８が設けられて
いる。なお、給電プローブ３８、４０、伝送線路４２、
４４、結合用伝送線路４６、パッチ素子５０、接地パタ
ーン部５８は、誘電体板３６の上下両面に一様に形成さ
れた銅箔をエッチングすることによって形成され、その
エッチングパターン上には半田メッキが施されている。Reference numeral 56 denotes a blocking portion for preventing radiation from the coupling transmission line. Furthermore, ground pattern portions 58 are provided on both upper and lower surfaces of the portion of the dielectric plate 36 that is not located within the waveguide portion 32 so as to be in contact with the main body portion 34 . In addition, the power supply probes 38, 40, the transmission line 42,
44, the coupling transmission line 46, the patch element 50, and the ground pattern section 58 are formed by etching copper foil uniformly formed on both the upper and lower surfaces of the dielectric plate 36, and solder plating is applied on the etched pattern. is applied.
【００１０】この一次放射器では、例えばホーン部３０
の開口径Ｄ１は３０ｍｍ、ホーン部３０の長さＬ１は１
５ｍｍ、導波管部３２の開口径Ｄ２は１７．５ｍｍ、導
波管部３２の先端から誘電体板３６の上面までの長さＬ
２は１０ｍｍ、誘電体板３６の上面から導波管部３２の
下端までの長さＬ３は８ｍｍ、遮断部５６の高さＬ４は
４ｍｍ、誘電体板３６の厚さｔは０．８ｍｍ、各ストリ
ップラインの幅は約２ｍｍ、パッチ素子５０の大きさは
４ｍｍ×４ｍｍである。[0010] In this primary radiator, for example, the horn portion 30
The opening diameter D1 is 30 mm, and the length L1 of the horn portion 30 is 1.
5 mm, the opening diameter D2 of the waveguide section 32 is 17.5 mm, and the length L from the tip of the waveguide section 32 to the top surface of the dielectric plate 36
2 is 10 mm, the length L3 from the upper surface of the dielectric plate 36 to the lower end of the waveguide section 32 is 8 mm, the height L4 of the blocking section 56 is 4 mm, the thickness t of the dielectric plate 36 is 0.8 mm, each The width of the strip line is approximately 2 mm, and the size of the patch element 50 is 4 mm x 4 mm.
【００１１】図３に符号Ｂで示すのは、この一次放射器
のｆ０ （１１．８５ＧＨＺ ）を中心周波数とする帯
域幅１ＧＨＺ における定在波比を示したもので、最も
悪い１２．３５ＧＨｚ でも、定在波比が１．０８もあ
り、図１０及び図１１に示した従来のものの定在波比（
符号Ａ）と比較して、格段と向上している。図４は、こ
の一次放射器の主偏波の指向特性を示したもので、サイ
ドローブレベルが約２５ｄＢあり、メインローブが第１
及び第２サイドローブと良く切れており、上述した従来
のものより主偏波指向特性が改善されている。図５は、
この一次放射器の交差偏波の指向特性を示したもので、
０度の点では３０ｄＢあり、標準規格値２５ｄＢ以上と
なり、上述した従来のものよりも交差偏波特性が改善さ
れている。[0011] In Fig. 3, the symbol B indicates the standing wave ratio in a bandwidth of 1 GHz with the center frequency f0 (11.85 GHz) of this primary radiator.Even at the worst, 12.35 GHz, The standing wave ratio is as high as 1.08, which is higher than the standing wave ratio (
This is a marked improvement compared to code A). Figure 4 shows the directivity characteristics of the main polarization of this primary radiator, with a side lobe level of about 25 dB and a main lobe at the first
and the second side lobe, and the main polarization directivity characteristics are improved compared to the above-mentioned conventional one. Figure 5 shows
This shows the cross-polarized directional characteristics of this primary radiator.
At the 0 degree point, it is 30 dB, which is higher than the standard value of 25 dB, and the cross-polarization characteristics are improved compared to the conventional one described above.
【００１２】図６及び図７に第２の実施例を示す。この
実施例は、本発明による円−直線偏波変換器を多数配列
して、円偏波アレーアンテナを構成したものである。な
お、図６及び図７には、このアレーアンテナの１素子を
構成する円−直線偏波変換器のみを示している。この円
−直線偏波変換器は、第１の実施例と同様に誘電体板３
６ａの裏面に１対の給電プローブ３８ａ、４０ａを設け
てある。これらは伝送線路４２ａ、４４ａ、結合用伝送
線路４６ａを介して入出力部（図示せず）に接続されて
いる。誘電体板３６ａの表面側にはパッチ素子５０ａが
、第１の実施例のパッチ素子５０と同様に設けられてい
る。５８ａは遮蔽用パターン部である。この円−直線偏
波変換器の上方には、所定の間隔、例えばλｇ ／４だ
け隔てて上面に銅箔６０及び半田メッキ部６２を有する
誘電体板６４が設けられている。これら銅箔６０及び半
田メッキ部６２には、放射用開口６６がパッチ素子５０
ａと対応するように設けられている。また、誘電体板３
６ａの下方には、所定の間隔、例えばλｇ ／４だけ隔
てて地導体６８が構成されている。この実施例でも、第
１の実施例と同様に円偏波を直線偏波に、或いは直線偏
波を円偏波に変換することができる。A second embodiment is shown in FIGS. 6 and 7. In this embodiment, a circularly polarized array antenna is constructed by arranging a large number of circular-to-linearly polarized wave converters according to the present invention. Note that FIGS. 6 and 7 only show a circular-linear polarization converter that constitutes one element of this array antenna. This circular-linear polarization converter has a dielectric plate 3 similar to the first embodiment.
A pair of power supply probes 38a and 40a are provided on the back surface of 6a. These are connected to an input/output section (not shown) via transmission lines 42a, 44a and a coupling transmission line 46a. A patch element 50a is provided on the front side of the dielectric plate 36a, similar to the patch element 50 of the first embodiment. 58a is a shielding pattern section. Above this circular-linear polarization converter, a dielectric plate 64 having a copper foil 60 and a solder plated portion 62 on its upper surface is provided at a predetermined interval, for example, λg/4. A radiation opening 66 is provided in the copper foil 60 and the solder plated portion 62 for the patch element 50.
It is provided to correspond to a. In addition, dielectric plate 3
Ground conductors 68 are arranged below 6a at a predetermined interval, for example, λg/4. In this embodiment as well, circularly polarized waves can be converted into linearly polarized waves, or linearly polarized waves can be converted into circularly polarized waves, as in the first embodiment.
【００１３】第３の実施例を図８に示す。この実施例は
、パッチ素子の形状が異なる以外、第１または第２の実
施例と同様に構成されている。この実施例のパッチ素子
５０ｂは、正方形の各角部をカットした形状で、この場
合も配置位置は、給電プローブ３８（３８ａ）、４０（
４０ａ）をそれぞれ通る直線の交点５２を通り、上記の
両直線に対してそれぞれ４５度をなす直線５４上に両給
電プローブと重なりあわないように配置されている。A third embodiment is shown in FIG. This embodiment is constructed similarly to the first or second embodiment except that the shape of the patch element is different. The patch element 50b of this embodiment has a square shape with each corner cut off, and in this case as well, the arrangement positions are the feeding probes 38 (38a), 40 (
40a), and is arranged on a straight line 54 that makes an angle of 45 degrees with respect to both of the above-mentioned straight lines so as not to overlap with both of the power supply probes.
【００１４】第４の実施例を図９に示す。この実施例も
、パッチ素子の形状が異なる以外、第１または第２の実
施例と同様に構成されている。この実施例のパッチ素子
５０ｃは、正八角形状に形成されており、第３の実施例
と同様に配置されている。A fourth embodiment is shown in FIG. This embodiment also has the same structure as the first or second embodiment except that the shape of the patch element is different. The patch element 50c of this embodiment has a regular octagonal shape and is arranged in the same manner as in the third embodiment.
【００１５】上記の各実施例では、パッチ素子は、正方
形または八角形としたが、他に公知のパッチ素子、例え
ば円形のものや、正方形、八角形、円形の中心部分をく
り抜いた形状のものを使用することもできる。また、第
２の実施例では、パッチ素子を誘電体板３６ａ上に設け
たが、誘電体板６４の放射開口６６内に設けることもで
きる。In each of the above embodiments, the patch elements are square or octagonal, but other known patch elements, such as circular ones, squares, octagons, or circular ones with the central part cut out, may be used. You can also use Further, in the second embodiment, the patch element is provided on the dielectric plate 36a, but it may also be provided within the radiation opening 66 of the dielectric plate 64.
【００１６】[0016]
【発明の効果】本発明によれば、２つの給電プローブが
９０度異なる位置に配置されており、かつこれら２つの
給電プローブに９０度の位相差を有する信号が供給され
るので、直線偏波の信号を円偏波の信号に変換すること
ができる。この円偏波の信号は、２つの給電プローブと
電磁結合しているパッチ素子を介して放射される。パッ
チ素子は、２つの給電プローブをそれぞれ通る直線の交
点を通り、両給電プローブに対してそれぞれ約４５度の
角度をなす直線上であって、上記の交点より両給電プロ
ーブ側に偏った位置に設けられているので、第１の実施
例に関連して説明したように、定在波比、主偏波の指向
特性及び交差偏波の指向特性が改善される。なお、円偏
波を直線偏波に変換する場合にも、同様に定在波比、主
偏波の指向特性及び交差偏波の指向特性が改善される。Effects of the Invention According to the present invention, two feeding probes are arranged at positions different by 90 degrees, and signals having a phase difference of 90 degrees are supplied to these two feeding probes. signal can be converted to a circularly polarized signal. This circularly polarized signal is radiated via a patch element that is electromagnetically coupled to two feeding probes. The patch element is located on a straight line that passes through the intersection of the straight lines passing through the two power supply probes and forms an angle of approximately 45 degrees with respect to both power supply probes, and is located at a position that is biased toward both power supply probes from the above-mentioned intersection. As described in connection with the first embodiment, the standing wave ratio, the directivity characteristics of the main polarization, and the directivity characteristics of the cross polarization are improved. Note that when circularly polarized waves are converted to linearly polarized waves, the standing wave ratio, the directivity characteristics of the main polarized waves, and the directivity characteristics of the cross polarized waves are similarly improved.
【図１】本発明の第１の実施例の平面図である。FIG. 1 is a plan view of a first embodiment of the invention.
【図２】図１のＡ−Ａ線に沿う断面図である。FIG. 2 is a cross-sectional view taken along line AA in FIG. 1;
【図３】第１の実施例と従来の円−直線偏波変換器を備
えた一次放射器の定在波特性を示す図である。FIG. 3 is a diagram showing standing wave characteristics of a primary radiator including the first embodiment and a conventional circular-to-linear polarization converter.
【図４】第１の実施例の主偏波の指向特性図である。FIG. 4 is a directional characteristic diagram of main polarized waves in the first embodiment.
【図５】第１の実施例の交差偏波の指向特性図である。FIG. 5 is a directional characteristic diagram of cross-polarized waves in the first embodiment.
【図６】第２の実施例の平面図である。FIG. 6 is a plan view of the second embodiment.
【図７】第２の実施例の縦断面図である。FIG. 7 is a longitudinal cross-sectional view of the second embodiment.
【図８】第３の実施例の部分省略拡大平面図である。FIG. 8 is a partially omitted enlarged plan view of the third embodiment.
【図９】第４の実施例の部分省略拡大平面図である。FIG. 9 is a partially omitted enlarged plan view of the fourth embodiment.
【図１０】従来の円−直線偏波変換器を備えた一次放射
器の平面図である。FIG. 10 is a plan view of a primary radiator with a conventional circular-to-linear polarization converter;
【図１１】図１０のＢ−Ｂ線に沿う断面図である。11 is a sectional view taken along line BB in FIG. 10. FIG.
【図１２】図１０の円−直線偏波変換器の主偏波の指向
特性図である。12 is a directional characteristic diagram of the main polarization of the circular-to-linear polarization converter of FIG. 10; FIG.
【図１３】図１０の円−直線偏波変換器の交差偏波の指
向特性図である。13 is a directional characteristic diagram of cross-polarized waves of the circular-to-linear polarized wave converter of FIG. 10; FIG.
３６ 誘電体板 ３８、４０ 給電プローブ ４２、４４ 伝送線路 36 Dielectric plate 38, 40 Power supply probe 42, 44 Transmission line
Claims (1)
に互いにほぼ直角に配置された２つの給電プローブと、
上記誘電体板の上記一方の面に配置され上記２つの給電
プローブを入出力部に接続しており一方が他方と約λｇ
／４（λｇは伝送波長）長さが異なる伝送線路と、上
記一方の面と反対側において上記２つの給電プローブを
それぞれ通る直線の交点を通り上記両給電プローブに対
してそれぞれ約４５度の角度をなす直線上の上記交点よ
り上記両給電プローブ側に偏った位置に設けられている
パッチ素子とを、具備する円−直線偏波変換器。1. A dielectric plate; two power supply probes disposed on one side of the dielectric plate at substantially right angles to each other;
The two power supply probes are arranged on one surface of the dielectric plate and connected to the input/output section, and one is connected to the other by approximately λg.
/4 (λg is the transmission wavelength) passing through the intersection of transmission lines with different lengths and straight lines passing through the two feeding probes on the opposite side from the one side above, and making an angle of about 45 degrees with respect to both feeding probes. a circular-to-linear polarization converter, comprising: a patch element provided at a position biased towards both the power supply probes from the intersection on the straight line forming the line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3039502A JP2521193B2 (en) | 1991-02-07 | 1991-02-07 | Circle-to-linear polarization converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3039502A JP2521193B2 (en) | 1991-02-07 | 1991-02-07 | Circle-to-linear polarization converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04256201A true JPH04256201A (en) | 1992-09-10 |
| JP2521193B2 JP2521193B2 (en) | 1996-07-31 |
Family
ID=12554825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3039502A Expired - Fee Related JP2521193B2 (en) | 1991-02-07 | 1991-02-07 | Circle-to-linear polarization converter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2521193B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5440279A (en) * | 1992-11-24 | 1995-08-08 | Matsushita Electric Industrial Co., Ltd. | Electromagnetic radiation converter |
| FR2772189A1 (en) * | 1997-12-08 | 1999-06-11 | Alsthom Cge Alcatel | Coupling for wave guide to transmission line |
| EP1014471A1 (en) * | 1998-12-24 | 2000-06-28 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Waveguide-transmission line transition |
| EP1168482A1 (en) * | 2000-06-29 | 2002-01-02 | Thomson Licensing S.A. | T-circuit produced using microstrip technology with phase-shifting element |
| EP4099502A1 (en) * | 2021-06-02 | 2022-12-07 | The Boeing Company | Compact low-profile aperture antenna with integrated diplexer |
-
1991
- 1991-02-07 JP JP3039502A patent/JP2521193B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5440279A (en) * | 1992-11-24 | 1995-08-08 | Matsushita Electric Industrial Co., Ltd. | Electromagnetic radiation converter |
| FR2772189A1 (en) * | 1997-12-08 | 1999-06-11 | Alsthom Cge Alcatel | Coupling for wave guide to transmission line |
| EP0928041A1 (en) * | 1997-12-08 | 1999-07-07 | Alcatel | Transition between a waveguide and a coplanar line |
| EP1014471A1 (en) * | 1998-12-24 | 2000-06-28 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Waveguide-transmission line transition |
| US6580335B1 (en) | 1998-12-24 | 2003-06-17 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Waveguide-transmission line transition having a slit and a matching element |
| EP1168482A1 (en) * | 2000-06-29 | 2002-01-02 | Thomson Licensing S.A. | T-circuit produced using microstrip technology with phase-shifting element |
| FR2811141A1 (en) * | 2000-06-29 | 2002-01-04 | Thomson Multimedia Sa | T-CIRCUIT REALIZED IN MICRO-TAPE TECHNOLOGY WITH PHASE ELEMENT |
| US6538528B2 (en) | 2000-06-29 | 2003-03-25 | Thomson Licensing S.A. | T-circuit produced using microstrip technology with a phase-shifting element |
| EP4099502A1 (en) * | 2021-06-02 | 2022-12-07 | The Boeing Company | Compact low-profile aperture antenna with integrated diplexer |
| US20220393359A1 (en) * | 2021-06-02 | 2022-12-08 | The Boeing Company | Compact Low-Profile Aperture Antenna with Integrated Diplexer |
| US11978954B2 (en) | 2021-06-02 | 2024-05-07 | The Boeing Company | Compact low-profile aperture antenna with integrated diplexer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2521193B2 (en) | 1996-07-31 |
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