JPH0559573B2 - - Google Patents
Info
- Publication number
- JPH0559573B2 JPH0559573B2 JP26427190A JP26427190A JPH0559573B2 JP H0559573 B2 JPH0559573 B2 JP H0559573B2 JP 26427190 A JP26427190 A JP 26427190A JP 26427190 A JP26427190 A JP 26427190A JP H0559573 B2 JPH0559573 B2 JP H0559573B2
- Authority
- JP
- Japan
- Prior art keywords
- air
- core coil
- inductance value
- frequency circuit
- circuit device
- 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.)
- Expired - Lifetime
Links
Landscapes
- Coils Or Transformers For Communication (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、低インダクタンスの空心コイルを基
板上に搭載した高周波回路装置の特性調整方法に
関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for adjusting characteristics of a high frequency circuit device in which a low inductance air-core coil is mounted on a substrate.
（従来の技術）
高周波回路を構成する空心コイル等の電子部品
は、高周波回路に適合したインダクタンス値等を
有するものが予め選択されて用いられる。しかし
ながら、高周波回路の特性は電子部品の配置や接
続状態によつて異なる。そこで、すべての電子部
品を基板に組み込んだ後、高周波特性を測定しな
がら、電子部品の定数例えば空心コイルのインダ
クタンス値を変えて高周波特性を調整し所望の特
性を得ている。(Prior Art) Electronic components such as air-core coils constituting a high-frequency circuit are selected in advance to have an inductance value suitable for the high-frequency circuit. However, the characteristics of high-frequency circuits vary depending on the arrangement and connection state of electronic components. Therefore, after all the electronic components are assembled on the board, while measuring the high frequency characteristics, the high frequency characteristics are adjusted by changing the constants of the electronic components, such as the inductance value of the air-core coil, to obtain the desired characteristics.
絶縁被覆導線ａを、第３図示のように、円弧状
に巻回した空心コイルｂを、その両端末を基板ｃ
の回路導体ｄに接続した電子回路装置では、空心
コイルｂを第４図示のように斜めに押し潰し、押
し潰し加減で空心コイルｂのインダクタンス値を
変えたり、あるいは、隣接する巻回導体の間隔
を、第５図示のように部分的に広げて空心コンル
ｂのインダクタンス値を変えたりして高周波特性
を調整している。 As shown in the third diagram, an air-core coil b is formed by winding an insulated conducting wire a into an arc shape, and its both ends are connected to a substrate c.
In an electronic circuit device connected to a circuit conductor d, the air-core coil b is crushed obliquely as shown in the fourth diagram, and the inductance value of the air-core coil b is changed by the amount of crushing, or the distance between adjacent wound conductors is changed. As shown in Figure 5, the high frequency characteristics are adjusted by partially expanding the inductance value of the air-core convex b and changing the inductance value of the air-core convex b.
（考案が解決しようとする課題）
低インダクタンス値を得るために巻数の減ら
し、１ターン若しくは半ターンとした空心コイル
ｂにおいては、上述のように斜めに押し潰しても
インダクタンス値は変動しないし、巻回導体の間
隔を広げることもできないので、その都度、別の
空心コイルと変換して所望の高周波特性を得るよ
うにしていた。かくて、高周波回路装置の特性を
調整するのに手数及び時間がかかり、コストも高
くなる等の課題があつた。(Problem to be solved by the invention) In the air-core coil b whose number of turns is reduced to one turn or half a turn in order to obtain a low inductance value, the inductance value does not change even if it is crushed diagonally as described above. Since it is not possible to widen the spacing between the wound conductors, each time the coil is replaced with another air-core coil to obtain the desired high-frequency characteristics. As a result, there are problems in that it takes time and effort to adjust the characteristics of the high frequency circuit device, and the cost also increases.
本発明は、従来のこのような課題を解決するこ
とをその目的とするものである。 The present invention aims to solve these conventional problems.
（課題を解決するための手段）
本発明は、上記目的を達成するために、絶縁被
覆された導線を円弧状に周回させて成る空心コイ
ルを基板上に搭載して成る高周波回路装置におい
て、該空心コイルの円弧状に周回させた導線の両
端部を捩じつて閉じたループを形成し、その捩じ
り加減によりインダクタンス値を変えて高周波回
路の特性を調整することを特徴とする。(Means for Solving the Problems) In order to achieve the above object, the present invention provides a high-frequency circuit device in which an air-core coil made of an insulated conducting wire wound in an arc shape is mounted on a substrate. It is characterized by forming a closed loop by twisting both ends of a conducting wire wound around an arc of an air-core coil, and adjusting the characteristics of the high-frequency circuit by changing the inductance value depending on the degree of twisting.
（作用）
空心コイルの円弧状に周回させた導線の両端を
捩じつて閉じたループを形成すると、捩じり部分
はインダクタンス値を関与しない部分となり、空
心コイルのインダクタンスは減少する。かくて空
心コイルを組み込んだ高周波回路の特性は空心コ
イルのインダクタンス値の僅かな変化によつて調
整される。(Function) When both ends of the conducting wire wound around the air-core coil in an arc shape are twisted to form a closed loop, the twisted portion becomes a portion that does not affect the inductance value, and the inductance of the air-core coil decreases. In this way, the characteristics of a high frequency circuit incorporating an air-core coil can be adjusted by slight changes in the inductance value of the air-core coil.
（実施例） 以下本発明実施例を図面につき説明する。(Example) Embodiments of the present invention will be described below with reference to the drawings.
第１図は、インダクタンス値調整前の空心コイ
ル１を電子回路装置のプリント基板２に、両端末
３を回路導体４に接続して搭載した状態を示す。 FIG. 1 shows a state in which an air-core coil 1 before inductance value adjustment is mounted on a printed circuit board 2 of an electronic circuit device, with both terminals 3 connected to a circuit conductor 4.
空心コイル１は、絶縁被覆された例えば線径
0.3mmφの導線１ａを内径が例えば1.7mmの円弧状
に略１ターン周回させて形成したもので、このと
きの測定周波数500MHz、1GHzのときのインダク
タンス値は10.8nH、12.261nHであつた。 The air core coil 1 is an insulating coated coil with a wire diameter of, for example,
The conductive wire 1a having a diameter of 0.3 mm was made to revolve approximately one turn in an arc shape with an inner diameter of, for example, 1.7 mm, and the inductance values were 10.8 nH and 12.261 nH at measurement frequencies of 500 MHz and 1 GHz.
第１図示の円弧状に周回させた導線の両端部
を、例えば180度、360度あるいは第２図示のよう
に、３回捩じつて閉じたループを形成し、その捩
じり加減によりインダクタンス値を調整する。 Twist both ends of the conducting wire in an arc shape as shown in the first figure, for example, 180 degrees, 360 degrees, or three times as shown in the second figure to form a closed loop, and depending on the degree of twisting, the inductance value can be determined. Adjust.
第２図において、捩じり部分Ｌはインダクタン
ス値に関与しない部分である。 In FIG. 2, the twisted portion L is a portion that does not affect the inductance value.
180度捩じつた状態の測定周波数500MHz、1G
Hzにおけるインダクタンス値の変化率は第１図示
のものに対して−14％、−14％であり、360度捩じ
つた状態の同一周波数におけるインダクタンス値
の変化率は−20％、−19％であつた。 Measurement frequency 500MHz, 1G when twisted 180 degrees
The rate of change of the inductance value at Hz is -14%, -14% with respect to the one shown in Figure 1, and the rate of change of the inductance value at the same frequency in a 360 degree twisted state is -20%, -19%. It was hot.
（発明の効果）
本発明は、上述の通りの構成を有するから、巻
回数が１ターン以下の低いインダクタンス値の空
心コイルを用いた電子回路装置においても、その
特性の調整が容易であり、一種類の空心コイルを
用意すればよいので生産性が向上する等の効果を
有する。(Effects of the Invention) Since the present invention has the above-described configuration, even in an electronic circuit device using an air-core coil with a low inductance value of one turn or less, the characteristics can be easily adjusted, and the characteristics can be easily adjusted. Since it is only necessary to prepare different types of air-core coils, it has the effect of improving productivity.
第１図は本発明の実施に使用する電子回路装置
の空心コイルの正面図、第２図は、第１図示の空
心コイルに本発明方法を実施した後の空心コイル
の正面図、第３図は従来の空心コイルの正面図、
第４図及び第５図はいずれも第３図示のコイルの
インダクタンス値を変化させた後の空心コイルの
正面図である。
１……空心コイル、１ａ……絶縁被覆導線、２
……プリント基板、４……回路導体。
FIG. 1 is a front view of an air-core coil of an electronic circuit device used for implementing the present invention, FIG. 2 is a front view of the air-core coil after the method of the present invention is applied to the air-core coil shown in FIG. 1, and FIG. is a front view of a conventional air-core coil,
4 and 5 are front views of the air-core coil after changing the inductance value of the coil shown in FIG. 3. 1...Air core coil, 1a...Insulated conductor, 2
...Printed circuit board, 4...Circuit conductor.
Claims (1)
る空心コイルを基板上に搭載して成る高周波回路
装置において、該空心コイルの円弧状に周回させ
た導線の両端部を捩じつて閉じたループを形成
し、その捩じり加減によりインダクタンス値を変
えて高周波回路の特性を調整することを特徴とす
る高周波回路装置の特性調整方法。1. In a high-frequency circuit device in which an air-core coil made of an insulated conducting wire wound in an arc shape is mounted on a substrate, a loop closed by twisting both ends of the air-core coil formed in an arc shape A method for adjusting characteristics of a high-frequency circuit device, characterized in that the characteristics of the high-frequency circuit are adjusted by forming a high-frequency circuit and changing the inductance value by twisting the inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26427190A JPH04142012A (en) | 1990-10-02 | 1990-10-02 | Method for adjusting characteristics of high frequency circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26427190A JPH04142012A (en) | 1990-10-02 | 1990-10-02 | Method for adjusting characteristics of high frequency circuit device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04142012A JPH04142012A (en) | 1992-05-15 |
| JPH0559573B2 true JPH0559573B2 (en) | 1993-08-31 |
Family
ID=17400853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26427190A Granted JPH04142012A (en) | 1990-10-02 | 1990-10-02 | Method for adjusting characteristics of high frequency circuit device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04142012A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2404091B (en) * | 2003-07-15 | 2005-08-17 | Motorola Inc | Circuit board constructions |
-
1990
- 1990-10-02 JP JP26427190A patent/JPH04142012A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04142012A (en) | 1992-05-15 |
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