JPH0525805U - Micro strip antenna - Google Patents
Micro strip antennaInfo
- Publication number
- JPH0525805U JPH0525805U JP7309091U JP7309091U JPH0525805U JP H0525805 U JPH0525805 U JP H0525805U JP 7309091 U JP7309091 U JP 7309091U JP 7309091 U JP7309091 U JP 7309091U JP H0525805 U JPH0525805 U JP H0525805U
- Authority
- JP
- Japan
- Prior art keywords
- copper foil
- foil surface
- microstrip antenna
- adjustment pattern
- pattern
- 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
Landscapes
- Waveguide Aerials (AREA)
Abstract
(57)【要約】
【目的】 マイクロストリップアンテナの中心周波数ｆ
０の調整を定量的にかつ簡単に行えるようにする。
【構成】 地導体３上に表面に銅箔面１を形成した誘電
体基板２を設け、給電線４により銅箔面１に給電する。
銅箔面１には切り欠き型調整パターン７が形成され、こ
の切り欠き型パターン７の切り欠き量を調整することに
より銅箔面１の周囲長を変化させ、中心周波数ｆ０を調
整する。
(57) [Abstract] [Purpose] Center frequency f of microstrip antenna
Make adjustment of 0 quantitative and easy. [Structure] A dielectric substrate 2 having a copper foil surface 1 formed on the surface of a ground conductor 3 is provided, and power is supplied to the copper foil surface 1 by a power supply line 4.
A cutout type adjustment pattern 7 is formed on the copper foil surface 1, and the peripheral length of the copper foil surface 1 is changed by adjusting the cutout amount of the cutout type pattern 7 to adjust the center frequency f 0 .
Description
【０００１】[0001]
本考案はマイクロストリップアンテナに関する。 The present invention relates to a microstrip antenna.
【０００２】[0002]
図５は従来のマイクロストリップアンテナの構成を示している。図６および図 ７は給電点付近の拡大図である。各図において、１は放射部となる銅箔面、２は 誘電体基板、３は地導体、４は給電線、５は銅箔面１と地導体３を接続するため の接続プレートである。給電線４の端は芯線はａ付近で銅箔面１に半田付けされ 、外導体（アース）はｂ付近で地導体３に半田付けされている。コの字形の接続 プレート５は銅箔面１の角付近で誘電体基板２をはさむ形で取り付けられ、銅箔 面１側と地導体３側とでそれぞれ半田付けによって接続されている。誘電体基板 ２の下面、すなわち地導体３と接する面は全面銅箔面１で覆われ、この面と地導 体３間は半田付けによって密着されている。図８に示すように、銅箔面１にはｆ ０ を調整するための櫛形調整パターン６を設けてある。 FIG. 5 shows the structure of a conventional microstrip antenna. 6 and 7 are enlarged views near the feeding point. In each figure, 1 is a copper foil surface which serves as a radiation part, 2 is a dielectric substrate, 3 is a ground conductor, 4 is a power supply line, and 5 is a connection plate for connecting the copper foil surface 1 and the ground conductor 3. At the end of the power supply line 4, the core wire is soldered to the copper foil surface 1 near a, and the outer conductor (earth) is soldered to the ground conductor 3 near b. The U-shaped connection plate 5 is attached so as to sandwich the dielectric substrate 2 near the corner of the copper foil surface 1 and is connected by soldering to the copper foil surface 1 side and the ground conductor 3 side, respectively. The lower surface of the dielectric substrate 2, that is, the surface in contact with the ground conductor 3, is entirely covered with the copper foil surface 1, and this surface and the ground conductor 3 are adhered by soldering. As shown in FIG. 8, the copper foil surface 1 has f 0 There is provided a comb-shaped adjustment pattern 6 for adjusting.
【０００３】 次に上記従来例の動作について説明する。図１の構成においてマイクロストリ ップアンテナの中心周波数ｆ０は基本的に次の式で決まる。Next, the operation of the above conventional example will be described. In the configuration of FIG. 1, the center frequency f 0 of the microstrip antenna is basically determined by the following equation.
【０００４】[0004]
【数１】 [Equation 1]
【０００５】[0005]
【数２】 [Equation 2]
【０００６】 ここで、Ｌは銅箔面１の周囲長、εｒは誘電体基板の誘電率、Ｃは光速である 。Here, L is the perimeter of the copper foil surface 1, ε r is the dielectric constant of the dielectric substrate, and C is the speed of light.
【０００７】 しかし図７に示す接続プレート５と銅箔面１端との距離ｌ１ 、給電線芯線と接続プレート５との距離ｌ２、図６に示す給電線４の外導体の 半田付け箇所と誘電体基板２との距離ｌ３、誘電体基板２下面の地導体３への接 着状態すなわち全面で接着されているかどうかなど、種々の要因によってｆ０ｆ はばらつく。マイクロストリップアンテナは基本的に狭帯域であるため、ｆ０の ばらつきによって使用周波数帯域内の定在波比が劣化しアンテナ利得が十分得ら れなくなってしまうので、アンテナを作製した後希望のｆ０に調整する作業を個 々に行う必要がある。その方法として銅箔面１に設けられた櫛形調整パターン６ の凸部分を１つずつ切断していく方法がある。図８に示す様に、ｆ０のずれの大 きさに応じて凸部分の根元の波線で示すところをカッター等で切断していく事に よって、銅箔面１の周囲長は短くなるのでｆ０は低い方へ変化させることで調整 が可能である。このように、上記従来のマイクロストリップアンテナでも所望の ｆ０のものを実現する事ができる。However, the distance l 1 between the connection plate 5 and the end of the copper foil surface 1 shown in FIG. 7, the distance l 2 between the feeder core and the connection plate 5, and the soldering point of the outer conductor of the feeder 4 shown in FIG. F 0 f fluctuates due to various factors such as the distance l 3 between the dielectric substrate 2 and the dielectric substrate 2 and the state where the lower surface of the dielectric substrate 2 is bonded to the ground conductor 3, that is, whether or not the entire surface is bonded. Since the microstrip antenna is basically a narrow band, the standing wave ratio in the used frequency band deteriorates due to variations in f 0 , and the antenna gain cannot be obtained sufficiently. It is necessary to individually perform the work of adjusting to 0 . As a method therefor, there is a method of cutting the convex portions of the comb-shaped adjustment pattern 6 provided on the copper foil surface 1 one by one. As shown in FIG. 8, the circumference of the copper foil surface 1 is shortened by cutting with a cutter or the like the portion indicated by the wavy line at the root of the convex portion according to the size of the deviation of f 0 . The f 0 can be adjusted by changing it to the lower side. In this way, it is possible to realize the desired f 0 even with the above conventional microstrip antenna.
【０００８】[0008]
しかしながら、上記従来のマイクロストリップアンテナではｆ０調整の際に櫛 形調整パターン６の凸部分を切断していくのでｆ０を高くしていく方向のみの調 整となる。そのため量産した場合などに調整前のｆ０がどの範囲に分布するかを あらかじめ調べ、そのばらつき範囲が希望のｆ０より低くなるよう設計しなけれ ばならない。しかしこのように設計しても量産した場合調整前のｆ０が希望のｆ ０ より高くなってしまうものも発生してしまう。このような場合にはｌ１・ｌ２ ・ｌ３を修正し直したり、小さい銅片を銅箔面１外周に半田付けするなどの方法 によって調整可能である。しかしその作業は非定量的で作業者の慣れやカンに頼 る点が多く、かつ非常に時間がかかる。 However, in the above conventional microstrip antenna, f0Since the convex portion of the comb-shaped adjustment pattern 6 is cut during adjustment, f0Adjustment is only possible in the direction of increasing. Therefore, in case of mass production, f before adjustment0, Which range is desired, and the range of variation is desired f0It must be designed to be lower. However, even if it is designed in this way, if it is mass-produced, f0Is the desired f 0 Some things will be higher. In such cases, l1・ LTwo ・ LThreeCan be adjusted by re-correcting or soldering a small copper piece to the outer periphery of the copper foil surface 1. However, the work is non-quantitative and often depends on the operator's familiarity and perception, and is very time-consuming.
【０００９】 本考案はこのような従来の問題を解決するものであり、ｆ０を低い方へ調整で きるような調整パターンをもつ優れたマイクロストリップアンテナを提供するこ とを目的とするものである。The present invention solves such a conventional problem, and an object of the present invention is to provide an excellent microstrip antenna having an adjustment pattern capable of adjusting f 0 to the lower side. is there.
【００１０】[0010]
本考案は上記目的を達成するために放射部としての銅箔面に周囲と連結可能な 切り欠き型調整パターンを設けたものである。 In order to achieve the above-mentioned object, the present invention provides a notch type adjustment pattern that can be connected to the surroundings on a copper foil surface as a radiation part.
【００１１】[0011]
本考案は上記のような構成により次のような効果を有する。すなわち、銅箔面 に切り欠き型調整パターンを設けることによってｆ０を低い方向へ定量的にかつ 簡単に調整できるようになる。したがって、櫛形調整パターンと組み合わせる事 によって、ｆ０を高い方向へも低い方向へも定量的にかつ簡単に調整できるよう になる。The present invention has the following effects due to the above configuration. That is, by providing a cutout type adjustment pattern on the copper foil surface, it becomes possible to adjust f 0 in the lower direction quantitatively and easily. Therefore, by combining with the comb-shaped adjustment pattern, it becomes possible to quantitatively and easily adjust f 0 in the high direction and the low direction.
【００１２】[0012]
図１は本考案によるマイクロストリップアンテナの実施例を示す。図中、図５ と同一部分には同一符号を付して説明を省略する。７は切り欠き型パターンであ る。図２に銅箔面１および切り欠き型パターン７の拡大図を示す。銅箔面１周囲 の適当な位置に例えば図３（ａ）に示すような切り欠き部７ａを設け、切り欠き 部７ａの先端にはいくつかの角形の穴７ｂ、７ｃが並んでいる。 FIG. 1 shows an embodiment of a microstrip antenna according to the present invention. 5, those parts that are the same as those corresponding parts in FIG. 5 are designated by the same reference numerals, and a description thereof will be omitted. 7 is a notch pattern. FIG. 2 shows an enlarged view of the copper foil surface 1 and the cutout pattern 7. A notch 7a as shown in FIG. 3A, for example, is provided at an appropriate position around the copper foil surface 1, and several rectangular holes 7b and 7c are arranged at the tip of the notch 7a.
【００１３】 切り欠き型パターン７は切り欠きを形成して銅箔面１の周囲長を長くするパタ ーンを意味し、図３（ａ）に示すように深さの浅い切り欠き部７ａとその先端に 並んで配列された角形の穴部７ｂ、７ｃ、…とから成る構成や、同図（ｂ）に示 したように、銅箔面１の周囲からやや離れた位置から複数の角穴７ｆ、７ｇ、… を配列した構成など種々の変形が可能である。The cutout pattern 7 means a pattern for forming a cutout to increase the peripheral length of the copper foil surface 1. As shown in FIG. 3A, the cutout pattern 7a has a shallow depth. A structure including rectangular holes 7b, 7c, ... Arranged side by side at the tip, and as shown in FIG. 1B, a plurality of rectangular holes are formed at a position slightly distant from the periphery of the copper foil surface 1. Various modifications such as a configuration in which 7f, 7g, ... Are arranged are possible.
【００１４】 次に上記実施例の動作および調整方法について図３（ａ）の実施例にもとづい て説明する。中心周波数ｆ０が希望のｆ０より高い場合、切り欠き部先端と角形 の間の銅箔部分を図３（ａ）に示す波線に沿ってカッター等で切断する。そうす る事によって切り欠きが穴７ｂまで延びてその長さが一定量だけ長くなるので、 銅箔面１周囲長がその分長くなることになり、中心周波数ｆ０は低くなる。した がって、ｆ０が希望のｆ０とどのくらいずれているかによって角穴と切り欠きの 間を切断していけば定量的に希望のｆ０に調整することが可能となる。Next, the operation and adjusting method of the above embodiment will be described based on the embodiment of FIG. When the center frequency f 0 is higher than the desired f 0, the copper foil portion between the tip of the notch and the square is cut with a cutter or the like along the wavy line shown in FIG. By doing so, the notch extends to the hole 7b and its length is lengthened by a certain amount, so that the peripheral length of the copper foil surface 1 is lengthened accordingly, and the center frequency f 0 is lowered. Therefore, it is possible to quantitatively adjust to the desired f 0 by cutting between the square hole and the notch depending on how much f 0 is the desired f 0 .
【００１５】 図３（ｂ）のパターンの場合には、先ず角穴７ａを周辺に連結するように切断 して切り欠きを形成し、以下図３（ａ）のパターンの場合と同様にしていけばよ い。In the case of the pattern of FIG. 3 (b), first, the square hole 7 a is cut so as to be connected to the periphery to form a notch, and thereafter, the same as in the case of the pattern of FIG. 3 (a). Good luck.
【００１６】 図４は本考案の他の実施例を示すものであり、櫛形調整パターン６の凹部分に 角穴による切り欠き型調整パターン７を設けている。凹部と角形の間を波線に沿 って切断して凹部を深くしていくことによりｆ０を低い方へ調整できる。一方、 ｆ０を高い方へ調整したい場合には、櫛形調整パターン６の凸片を切断してゆけ ばよい。このようにｆ０を低い方、高い方のいずれへも自在に調整することがで きる。FIG. 4 shows another embodiment of the present invention, in which a notch-shaped adjustment pattern 7 formed by a square hole is provided in the concave portion of the comb-shaped adjustment pattern 6. By cutting between the concave portion and the prism along the wavy line to deepen the concave portion, f 0 can be adjusted to the lower side. On the other hand, when it is desired to adjust f 0 to the higher side, the convex piece of the comb-shaped adjustment pattern 6 may be cut. In this way, f 0 can be freely adjusted to either the lower side or the higher side.
【００１７】 なお、図２の実施例の場合でも、更に図８のような櫛形調整パターン６を形成 すればｆ０を高い方、低い方のいずれにも調整できることはもちろんである。In the case of the embodiment of FIG. 2 as well, it is needless to say that if the comb-shaped adjustment pattern 6 as shown in FIG. 8 is further formed, f 0 can be adjusted to either the higher side or the lower side.
【００１８】 このように上記実施例によれば、切り欠き型の調整パターンを設けることによ ってｆ０を低い方へ定量的にかつ簡単に調整できるという効果を有する。As described above, according to the above-described embodiment, by providing the cutout type adjustment pattern, it is possible to adjust f 0 to the lower side quantitatively and easily.
【００１９】[0019]
本考案は上記実施例より明らかなようにマイクロストリップアンテナの放射部 としての銅箔面に切り欠き型調整パターンを設けたものであり、ｆ０を低い方向 へ定量的にかつ簡単に行えるという利点を有する。したがって、櫛形調整パター ンとこの切り欠き型調整パターンを両方設けることによってｆ０を低い方向へも 高い方向へも定量的かつ簡単に調整できるという効果を有する。As is apparent from the above-described embodiment, the present invention is provided with a cutout type adjustment pattern on the copper foil surface as the radiation part of the microstrip antenna, and has an advantage that f 0 can be quantitatively and easily lowered. Have. Therefore, by providing both the comb-shaped adjustment pattern and this cutout-type adjustment pattern, it is possible to adjust f 0 both in the low direction and in the high direction quantitatively and easily.
【図１】本発明の実施例におけるマイクロストリップア
ンテナの斜視図FIG. 1 is a perspective view of a microstrip antenna according to an embodiment of the present invention.
【図２】同マイクロストリップアンテナの銅箔部平面図FIG. 2 is a plan view of a copper foil portion of the microstrip antenna.
【図３】（ａ）は同マイクロストリップアンテナの調整
パターンの実施例を示す拡大平面図（ｂ）は同マイクロ
ストリップアンテナの調整パターンの他の実施例を示す
拡大平面図FIG. 3A is an enlarged plan view showing an embodiment of the adjustment pattern of the same microstrip antenna, and FIG. 3B is an enlarged plan view showing another embodiment of the adjustment pattern of the same microstrip antenna.
【図４】同マイクロストリップアンテナの調整パターン
の更に他の実施例を示す拡大平面図FIG. 4 is an enlarged plan view showing still another embodiment of the adjustment pattern of the microstrip antenna.
【図５】従来のマイクロストリップアンテナの一例を示
す斜視図FIG. 5 is a perspective view showing an example of a conventional microstrip antenna.
【図６】同マイクロストリップアンテナの給電点付近の
断面側面図FIG. 6 is a cross-sectional side view near the feeding point of the microstrip antenna.
【図７】同マイクロストリップアンテナの給電点付近の
平面図FIG. 7 is a plan view of the vicinity of a feeding point of the same microstrip antenna.
【図８】従来のマイクロストリップアンテナの銅箔部平
面図FIG. 8 is a plan view of a copper foil portion of a conventional microstrip antenna.
１ 銅箔面 ２ 誘電体基板 ３ 地導体 ４ 給電線 ５ 接続プレート ６ 櫛形調整パターン ７ 切り欠き型調整パターン 1 Copper foil surface 2 Dielectric substrate 3 Ground conductor 4 Feed line 5 Connection plate 6 Comb type adjustment pattern 7 Notch type adjustment pattern
Claims (2)
誘電体基板を支持する導体と、前記銅箔面に給電する手
段とを有し、前記銅箔面に切り欠き型調整パターンを設
けたことを特徴とするマイクロストリップアンテナ。1. A cutout adjusting pattern having a dielectric substrate having a copper foil surface on its surface, a conductor for supporting the dielectric substrate, and a means for supplying power to the copper foil surface. A microstrip antenna characterized by being provided.
求項１記載のマイクロストリップアンテナ。2. The microstrip antenna according to claim 1, further comprising a comb-shaped adjustment pattern provided on the copper foil surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991073090U JP2508052Y2 (en) | 1991-09-11 | 1991-09-11 | Microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1991073090U JP2508052Y2 (en) | 1991-09-11 | 1991-09-11 | Microstrip antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0525805U true JPH0525805U (en) | 1993-04-02 |
| JP2508052Y2 JP2508052Y2 (en) | 1996-08-21 |
Family
ID=13508297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1991073090U Expired - Lifetime JP2508052Y2 (en) | 1991-09-11 | 1991-09-11 | Microstrip antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2508052Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111937236A (en) * | 2018-04-17 | 2020-11-13 | 古野电气株式会社 | Antenna with a shield |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61171307U (en) * | 1985-04-15 | 1986-10-24 | ||
| JPH04330806A (en) * | 1991-05-02 | 1992-11-18 | Fujitsu Ltd | Antenna module |
| JPH0537227A (en) * | 1991-07-30 | 1993-02-12 | Murata Mfg Co Ltd | Circularly polarized wave microstrip antenna and its frequency adjustment method |
| JPH088446A (en) * | 1995-05-25 | 1996-01-12 | Rohm Co Ltd | Discrete diode |
-
1991
- 1991-09-11 JP JP1991073090U patent/JP2508052Y2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61171307U (en) * | 1985-04-15 | 1986-10-24 | ||
| JPH04330806A (en) * | 1991-05-02 | 1992-11-18 | Fujitsu Ltd | Antenna module |
| JPH0537227A (en) * | 1991-07-30 | 1993-02-12 | Murata Mfg Co Ltd | Circularly polarized wave microstrip antenna and its frequency adjustment method |
| JPH088446A (en) * | 1995-05-25 | 1996-01-12 | Rohm Co Ltd | Discrete diode |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111937236A (en) * | 2018-04-17 | 2020-11-13 | 古野电气株式会社 | Antenna with a shield |
| JPWO2019202893A1 (en) * | 2018-04-17 | 2021-04-22 | 古野電気株式会社 | antenna |
| CN111937236B (en) * | 2018-04-17 | 2023-06-16 | 古野电气株式会社 | Antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2508052Y2 (en) | 1996-08-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100721083B1 (en) | Radio frequency ic tag and method for manufacturing the same | |
| EP1128467B1 (en) | An antenna device | |
| JPH07131233A (en) | Microstrip antenna | |
| WO2019235297A1 (en) | Split-ring resonator and substrate | |
| JPH0851313A (en) | Surface mount antenna and its frequency adjustment method | |
| JPH08250917A (en) | Antenna for radio equipment | |
| JP2508052Y2 (en) | Microstrip antenna | |
| JPH10209744A (en) | Inverted f-type antenna | |
| JP4924327B2 (en) | Antenna device and characteristic adjustment method thereof | |
| JP2530851Y2 (en) | antenna | |
| JPH06276014A (en) | Plane antenna for mobile radio | |
| JP2508052Z (en) | ||
| JP2521193B2 (en) | Circle-to-linear polarization converter | |
| JPH04148514A (en) | Adjusting method of inductance of printed coil | |
| JP2590864B2 (en) | Feeding structure of microstrip antenna | |
| JPH08181531A (en) | Slot coupling microstrip antenna with radome | |
| JP2001177331A (en) | Surface mounting antenna and frequency adjustment method therefor | |
| JP3246160B2 (en) | Surface mount antenna | |
| JPS6314522B2 (en) | ||
| JP3262002B2 (en) | Surface mount antenna | |
| US6249196B1 (en) | Resonator for uniformly varying inductance or impedance in longitudinal direction of conductor line | |
| JP4623534B2 (en) | Planar antenna | |
| JPH0368201A (en) | Dielectric antenna | |
| JP2008288826A (en) | Antenna device and impedance adjustment method of antenna device | |
| JPH098537A (en) | Plane antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |