JPS59126304A - Shared microstrip antenna for two frequency bands - Google Patents
Shared microstrip antenna for two frequency bandsInfo
- Publication number
- JPS59126304A JPS59126304A JP58001121A JP112183A JPS59126304A JP S59126304 A JPS59126304 A JP S59126304A JP 58001121 A JP58001121 A JP 58001121A JP 112183 A JP112183 A JP 112183A JP S59126304 A JPS59126304 A JP S59126304A
- Authority
- JP
- Japan
- Prior art keywords
- microstrip antenna
- elements
- frequency bands
- boundary
- pin
- 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
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、小形かつ簡易な構成にして2周波数帯共用の
可能なマイクロストリ、プアンテナに関するものである
。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a microstrip antenna that has a small and simple configuration and can be used in two frequency bands.
マイクロストリップアンテナは、通常狭帯域の特性を有
しており、通信に用いる際に送受共用を行うためには送
受2周波数帯で使用可能とする必要がある。従来の2周
波数帯共用化を図った例を、第1図および第2図に示す
。第1図は、共振周波数の異なる放射素子を並置したも
のであり、第2図は共振周波数の異々る放射素子を重ね
たものである。第1図および81¥2図(a)Φ)にお
いて、1は受信用放射素子、2は送信用放射素子、3は
誘電体板、4は金属基板、5は給電ピン、7はコネクタ
、8はアースピア、9 、9a 、 9b 、 9cは
1/4波長変成器である。A microstrip antenna usually has narrow band characteristics, and in order to perform shared transmission and reception when used for communication, it is necessary to be able to use it in two frequency bands for transmission and reception. An example of conventional common use of two frequency bands is shown in FIGS. 1 and 2. FIG. 1 shows radiating elements having different resonant frequencies arranged side by side, and FIG. 2 shows radiating elements having different resonant frequencies stacked one on top of the other. In Figure 1 and Figure 81\2 (a) Φ), 1 is a receiving radiation element, 2 is a transmitting radiation element, 3 is a dielectric plate, 4 is a metal substrate, 5 is a power supply pin, 7 is a connector, 8 is an earth pier, and 9, 9a, 9b, and 9c are quarter wavelength transformers.
第1図の場合、素子の占める面積は単一周波数の場合に
比べて2倍となり、これを多数用いてアレーアンテナを
構成するとき、素子配列が制限され、かつ給電回路も複
雑となる欠点がある。In the case of Figure 1, the area occupied by the elements is twice that of a single frequency case, and when a large number of these elements are used to construct an array antenna, the element arrangement is limited and the feeding circuit is complicated. be.
寸だ第2図(a)Φ)の場合、素子配列および給電回路
の複雑さについての問題はないが、素子の2重化という
設計上の難しさがあり、捷だマイクロストリップアンテ
ナの特徴であるプリント基板1枚から構成できるという
利点を欠くことと々る。In the case of Fig. 2 (a) Φ), there are no problems with the complexity of the element arrangement or the feeding circuit, but there is the design difficulty of duplicating the elements, which is a characteristic of the narrow microstrip antenna. They often lack the advantage of being constructed from a single printed circuit board.
本発明は、これらの欠点を除去するため、送受各局波数
で共振する放射素子をスルーホールあるいはビンの列を
境界として配置することにより2周波数共用化を図った
2周波数帯用マイクロストリップアンテナを提供するも
のである。In order to eliminate these drawbacks, the present invention provides a microstrip antenna for two frequency bands that achieves dual frequency sharing by arranging radiating elements that resonate at each transmitting and receiving station wave number with through holes or rows of bins as boundaries. It is something to do.
以下本発明の詳細な説明する。The present invention will be explained in detail below.
第3図(a)(b)は、方形マイクロストリップアンテ
ナの基本モードの電界分布を示した平面図及び断面図で
ある。図中の3は誘電体板、4は金属基板5は給電ピン
、6は金属板、7はコネクタ、8はアースビンである。FIGS. 3(a) and 3(b) are a plan view and a cross-sectional view showing the electric field distribution of the fundamental mode of a rectangular microstrip antenna. In the figure, 3 is a dielectric plate, 4 is a metal substrate 5 is a power supply pin, 6 is a metal plate, 7 is a connector, and 8 is a ground bin.
寸た、矢印は電界分布を示す。The arrows indicate the electric field distribution.
ここで、Lは次式で与えられる。Here, L is given by the following equation.
なお、Cは光速、fは共振周波数、εrは比誘電率を示
す。基本モードの場合、アースピン8を含む面I[1−
Illaでの電界は零であり、l1l−Illa面にス
ルーホール列あるいはピンの列を設けることにより、第
4図(a) (b)に示す構成においても同じ特性が得
られる。これは、In−Illa面にアース面を設ける
ことによる影像効果を用いたものである。Note that C represents the speed of light, f represents the resonance frequency, and εr represents the relative dielectric constant. In the case of the fundamental mode, the plane I[1-
The electric field at Illa is zero, and the same characteristics can be obtained in the configurations shown in FIGS. 4(a) and 4(b) by providing a through-hole row or a pin row on the Ill-Illa plane. This uses the image effect produced by providing a ground plane on the In-Illa plane.
本発明は、この効果を用いたもので、第5図に実施例を
示し、(a)は平面図、(b)は断面図である。The present invention utilizes this effect, and an embodiment is shown in FIG. 5, in which (a) is a plan view and (b) is a sectional view.
スルーホール列あるいはピン列を境界としてその境界の
一方と他方とで互いに異なる長さ約L++ / 2 +
L2/2の方形素子を設けている。各素子は、各々次に
示す式で与えられる共振周波数で共振する。With the through-hole row or pin row as the boundary, one side of the boundary and the other side have different lengths of approximately L++/2 +
A square element of L2/2 is provided. Each element resonates at a resonant frequency given by the following equation.
= 3−
第3図と第5図の比較から明らかなように、はぼ同じ大
きさで2周波数共用が実現可能である。= 3- As is clear from the comparison between FIG. 3 and FIG. 5, it is possible to realize two frequencies with approximately the same size.
なお、第5図(a) (b)においては、各素子に給電
する場合について示したが、第6図(a)Φ)に示すよ
うに片方の素子にのみ給電し、素子間のピン列を介した
結合を利用して他方の素子を励振することも可能である
。このとき結合係数はスルーホール列あるいはピン列の
間隔で決定される。Although Fig. 5 (a) and (b) show the case where power is supplied to each element, as shown in Fig. 6 (a) It is also possible to excite the other element using coupling via. At this time, the coupling coefficient is determined by the spacing between the through hole rows or pin rows.
第7図(a)に第6図(a)(b)の構造のアンテナの
VSWR特性の測定例を示す。第7図(a)より明らか
なように2周波数共振しているのがわかる。また、第7
図■に第6図(a)(ロ)の構造のアンテナの放射特性
例を示す。Aは715MHzの場合、Bは910MHz
の場合である。FIG. 7(a) shows an example of measuring the VSWR characteristics of the antenna having the structure shown in FIGS. 6(a) and 6(b). As is clear from FIG. 7(a), there is resonance at two frequencies. Also, the seventh
Figure 6 shows an example of the radiation characteristics of the antenna having the structure shown in Figures 6(a) and 6(b). If A is 715MHz, B is 910MHz
This is the case.
以上、方形マイクロストリップアンテナの場合について
述べたが、円形等の他の形状においても同様に構成可能
である。第8図に円形マイクロストリップアンテナを用
いた場合の実施例を示す。Although the case of a rectangular microstrip antenna has been described above, other shapes such as a circular shape can be similarly configured. FIG. 8 shows an embodiment using a circular microstrip antenna.
4−
ここで、(a)は平面図、(ロ)は断面図である。スル
ーホ−ル列あるいはピン列を境界としてその境界の一方
と他方とで互いに異なる半径R1+ R2の半円形素子
を設けている。各素子は各々次に示す式で与えられる共
振周波数で共振する。4- Here, (a) is a plan view, and (b) is a sectional view. Semicircular elements with different radii R1+R2 are provided on one side and the other side of the through hole row or pin row as boundaries. Each element resonates at a resonant frequency given by the following equation.
以上説明したように、本発明に従って影像効果を用いて
共振周波数の異なる放射素子をスルーホール列あるいは
ピン列を介して配置することにより、小形かつ簡易な構
成で2周波数共用化を図れる。これにより、多数の素子
を配列したアレーアンテナの構成が簡単になり、低価格
化が図れる利点がある。As explained above, according to the present invention, by arranging radiating elements with different resonance frequencies via a through-hole array or a pin array using an image effect, it is possible to achieve dual frequency sharing with a small and simple configuration. This simplifies the configuration of an array antenna in which a large number of elements are arranged, and has the advantage of reducing costs.
【図面の簡単な説明】
第1図は従来の2周波数帯共用化を図った例を示す断面
図、第2図(a)(b)’は従来の2周波数帯共用化を
図った他の例を示す平面図及び断面図、第3図(a)Φ
)上方形マイクロストリップアンテナの基本モードの電
界分布を示す平面図及び断面図、第4図(a) (b)
は影像効果を用いて簡易化を図ったアンテナの例を示す
平面図及び断面図、第5図(a) (b)は本発明の一
実施例を示す平面図及び断面図、第6図(a)(b)は
本発明の他の実施例を示す平面図及び断面図、第7図(
a)Φ)は第6図(a)(ト))の構造のアンテナのV
SWR特性例特性例放射指向特性側図、第8図(a)(
b)は本発明の他の実施例を示す平面図及び断面図であ
る。
1・・・受信用放射素子、2・・・送信用放射素子、3
・・・誘電体板、4・・・金属基板、5・・・給電ピン
、6・・・金属板、7・・・コネクタ、8・・・アース
ピン(スルーホール)、9・・・1/4波長変成器。
特許出願人 日本電信電話公社
代理人 白水常雄
外1名
7−
究1図
兜2図
児3図
■
莞4図
第5図
10 /
第6図
第7図
周波数(MHz:1
角度(dead)[Brief explanation of the drawings] Figure 1 is a cross-sectional view showing an example of conventional dual frequency band sharing, and Figures 2 (a) and (b)' are cross-sectional views of other conventional dual frequency band sharing examples. Plan view and cross-sectional view showing an example, Figure 3 (a) Φ
) Planar and cross-sectional views showing the electric field distribution of the fundamental mode of the upper microstrip antenna, Figure 4 (a) (b)
5(a) and 5(b) are a plan view and a sectional view showing an example of an antenna simplified using an image effect, FIG. a) and (b) are a plan view and a sectional view showing another embodiment of the present invention, and FIG.
a) Φ) is the V of the antenna with the structure shown in Fig. 6(a)(g))
SWR characteristic example Characteristic example Radiation directivity characteristic side view, Figure 8 (a) (
b) is a plan view and a sectional view showing another embodiment of the present invention. 1...Radiating element for reception, 2...Radiating element for transmission, 3
...Dielectric plate, 4...Metal board, 5...Power supply pin, 6...Metal plate, 7...Connector, 8...Earth pin (through hole), 9...1/ 4 wavelength transformer. Patent Applicant Nippon Telegraph and Telephone Public Corporation Agent Tsuneo Shiramizu and 1 other person 7- Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 10 / Fig. 6, Fig. 7 Frequency (MHz: 1 Angle (dead))
Claims (3)
基板と、前記誘電体板を介して該誘電体板の両面間をつ
なぐスルーホール列あるいはピン列を有し、かつ、該ス
ルーホール列あるいはピン列を境界として、該境界の一
方と他方とが大きさの異なる方形あるいは円形等の形状
の金属板が配置されていることを特徴とする2周波数帯
共用マイクロストリップアンテナ。(1) It has a dielectric plate, a metal substrate placed on one side of the dielectric plate, and a through hole row or pin row connecting both sides of the dielectric plate via the dielectric plate, and A microstrip antenna for dual frequency bands, characterized in that a metal plate having a shape such as a square or a circle is arranged with one side of the boundary and the other side having different sizes, with the through-hole row or the pin row as a boundary.
ーホール列あるいはピン列により、面積が互いに異なる
ように分割されていることを特徴とする特許請求の範囲
第1項記載の2周波数帯共用マイクロストリップアンテ
ナ。(2) The two frequencies according to claim 1, wherein the metal plate has a rectangular shape and is divided by the through-hole row or the pin row so that the areas thereof are different from each other. Band-sharing microstrip antenna.
− 形であり、かつ前記スルーホール列あるいはピン列を境
界として接していることを特徴とする特許請求の範囲第
1項記載の2周波数帯共用マイクロストリップアンテナ
。(3) The shape of the metal plate is two semicircles with different radii 1
2. The microstrip antenna for dual frequency bands according to claim 1, characterized in that the microstrip antenna has a shape of - and is in contact with the through-hole row or pin row as a boundary.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58001121A JPS59126304A (en) | 1983-01-10 | 1983-01-10 | Shared microstrip antenna for two frequency bands |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58001121A JPS59126304A (en) | 1983-01-10 | 1983-01-10 | Shared microstrip antenna for two frequency bands |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59126304A true JPS59126304A (en) | 1984-07-20 |
JPS647521B2 JPS647521B2 (en) | 1989-02-09 |
Family
ID=11492618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58001121A Granted JPS59126304A (en) | 1983-01-10 | 1983-01-10 | Shared microstrip antenna for two frequency bands |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59126304A (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6171701A (en) * | 1984-09-17 | 1986-04-12 | Matsushita Electric Ind Co Ltd | Antenna |
JPS6171702A (en) * | 1984-09-17 | 1986-04-12 | Matsushita Electric Ind Co Ltd | Small-sized antenna |
JPS6392104A (en) * | 1986-10-07 | 1988-04-22 | Sumitomo Electric Ind Ltd | Antenna |
JPS63120503A (en) * | 1986-11-07 | 1988-05-24 | Sumitomo Electric Ind Ltd | Dual beam antenna |
JPH01168102A (en) * | 1987-12-23 | 1989-07-03 | Mitsubishi Electric Corp | Shared antenna system for plural waves |
JPH01240023A (en) * | 1988-03-22 | 1989-09-25 | Japan Radio Co Ltd | Antenna for diversity reception |
JPH01243704A (en) * | 1988-03-25 | 1989-09-28 | Japan Radio Co Ltd | Microstrip antenna |
JPH01243705A (en) * | 1988-03-25 | 1989-09-28 | Japan Radio Co Ltd | Two frequency shared microstrip antenna |
JPH08195620A (en) * | 1995-01-12 | 1996-07-30 | Nec Corp | Antenna system |
JP2004165707A (en) * | 2001-10-31 | 2004-06-10 | Kobe Steel Ltd | High frequency microstrip line |
JP2006060770A (en) * | 2004-03-31 | 2006-03-02 | Toto Ltd | Microstrip antenna and high frequency sensor |
JP2008228095A (en) * | 2007-03-14 | 2008-09-25 | Sansei Denki Kk | Antenna for multiple bands |
CN111344901A (en) * | 2017-11-06 | 2020-06-26 | 东友精细化工有限公司 | Film antenna and display device comprising same |
WO2021215065A1 (en) * | 2020-04-24 | 2021-10-28 | 株式会社村田製作所 | Multiplexer and antenna module |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0750508A (en) * | 1993-08-06 | 1995-02-21 | Fujitsu Ltd | Antenna module |
JP3883565B1 (en) * | 2006-02-28 | 2007-02-21 | Tdk株式会社 | Chip antenna |
-
1983
- 1983-01-10 JP JP58001121A patent/JPS59126304A/en active Granted
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0221164B2 (en) * | 1984-09-17 | 1990-05-14 | Matsushita Electric Ind Co Ltd | |
JPS6171702A (en) * | 1984-09-17 | 1986-04-12 | Matsushita Electric Ind Co Ltd | Small-sized antenna |
JPS6171701A (en) * | 1984-09-17 | 1986-04-12 | Matsushita Electric Ind Co Ltd | Antenna |
JPS6392104A (en) * | 1986-10-07 | 1988-04-22 | Sumitomo Electric Ind Ltd | Antenna |
JPH0467804B2 (en) * | 1986-10-07 | 1992-10-29 | Sumitomo Electric Industries | |
US4887090A (en) * | 1986-10-07 | 1989-12-12 | Sumitomo Electric Industries | Vehicle antenna with shiftable gain patterns |
JPS63120503A (en) * | 1986-11-07 | 1988-05-24 | Sumitomo Electric Ind Ltd | Dual beam antenna |
JPH01168102A (en) * | 1987-12-23 | 1989-07-03 | Mitsubishi Electric Corp | Shared antenna system for plural waves |
JP2535992B2 (en) * | 1987-12-23 | 1996-09-18 | 三菱電機株式会社 | Multi-wave shared antenna device |
JPH01240023A (en) * | 1988-03-22 | 1989-09-25 | Japan Radio Co Ltd | Antenna for diversity reception |
JPH01243705A (en) * | 1988-03-25 | 1989-09-28 | Japan Radio Co Ltd | Two frequency shared microstrip antenna |
JPH01243704A (en) * | 1988-03-25 | 1989-09-28 | Japan Radio Co Ltd | Microstrip antenna |
JPH08195620A (en) * | 1995-01-12 | 1996-07-30 | Nec Corp | Antenna system |
JP2004165707A (en) * | 2001-10-31 | 2004-06-10 | Kobe Steel Ltd | High frequency microstrip line |
JP2006060770A (en) * | 2004-03-31 | 2006-03-02 | Toto Ltd | Microstrip antenna and high frequency sensor |
JP2008228095A (en) * | 2007-03-14 | 2008-09-25 | Sansei Denki Kk | Antenna for multiple bands |
CN111344901A (en) * | 2017-11-06 | 2020-06-26 | 东友精细化工有限公司 | Film antenna and display device comprising same |
JP2021501541A (en) * | 2017-11-06 | 2021-01-14 | 東友ファインケム株式会社Dongwoo Fine−Chem Co., Ltd. | Film antenna and display device including it |
US11411299B2 (en) | 2017-11-06 | 2022-08-09 | Dongwoo Fine-Chem Co., Ltd. | Film antenna and display device including the same |
CN111344901B (en) * | 2017-11-06 | 2023-01-10 | 东友精细化工有限公司 | Film antenna and display device comprising same |
WO2021215065A1 (en) * | 2020-04-24 | 2021-10-28 | 株式会社村田製作所 | Multiplexer and antenna module |
Also Published As
Publication number | Publication date |
---|---|
JPS647521B2 (en) | 1989-02-09 |
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