JPH02159127A - High frequency circuit device - Google Patents
High frequency circuit deviceInfo
- Publication number
- JPH02159127A JPH02159127A JP31339588A JP31339588A JPH02159127A JP H02159127 A JPH02159127 A JP H02159127A JP 31339588 A JP31339588 A JP 31339588A JP 31339588 A JP31339588 A JP 31339588A JP H02159127 A JPH02159127 A JP H02159127A
- Authority
- JP
- Japan
- Prior art keywords
- wiring board
- tuning
- plate
- tuning frequency
- printed wiring
- 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
- 230000010355 oscillation Effects 0.000 abstract description 5
- 239000002184 metal Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0213—Electrical arrangements not otherwise provided for
- H05K1/0237—High frequency adaptations
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/16—Printed circuits incorporating printed electric components, e.g. printed resistor, capacitor, inductor
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、シールドケース内に印刷配線基板を設けた
高周波回路装置に関するもので・ある。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a high frequency circuit device in which a printed wiring board is provided within a shield case.
従来の技術
従来、この種の高周波回路装置は、第３図に示すように
なっていた。すなわち、第３図において１は／−ルドケ
ースで、このシールドケース１の内部において、Ｕ字型
の金属板を用いた同調インダクタ部２がベース配線基板
３に立設されて設けられている。同調容量４は、ベース
配線基板３の裏面において半田付け６にて固着されてい
る。さらに同調周波数可変板６が、同調インダクタ部２
に対向して設けられる。したがらて、同調インダクタ部
２と同調周波数可変板６間は、調整用コンデンサを形成
し、この同調周波数可変板５を同調インダクタ部２に近
接あるいは離間することによって、この回路装置の容量
を調整し、同調周波数を可変していた。2. Description of the Related Art Conventionally, this type of high frequency circuit device has been constructed as shown in FIG. That is, in FIG. 3, reference numeral 1 denotes a shield case, and inside this shield case 1, a tuning inductor section 2 using a U-shaped metal plate is provided upright on a base wiring board 3. The tuning capacitor 4 is fixed to the back surface of the base wiring board 3 by soldering 6. Furthermore, the tuning frequency variable plate 6 is connected to the tuning inductor section 2.
It is installed opposite to. Therefore, an adjustment capacitor is formed between the tuning inductor section 2 and the tuning frequency variable plate 6, and by placing the tuning frequency variable plate 5 close to or away from the tuning inductor section 2, the capacitance of this circuit device can be adjusted. However, the tuning frequency was variable.
発明が解決しようとする課題
上記構成において同調インダクタ部２を、それに代えて
立設した印刷配線基板のパターンで形成したものを用い
る場合、従来の構成のように、同調周波数可変板６を、
同調インダクタ部を構成するパターン面側で近接あるい
は離間する方法では、印刷配線基板上には、複数の電子
部品が存在する為に、同調インダクタ部に対して近接で
きる距離が制限され、結果として同調インダクタ部と同
調周波数可変板間で形成される容量の可変範囲が小さく
なってしまう。また、印刷配線基板の裏面側において、
同調周波数可変板を近接あるいは離間する方法でも、同
調インダクタ部と同調周波数可変板間に、印刷配線基板
の誘電体が存在する為、誘電体が存在しない場合よりも
、同調インダクタ部と同調周波数可変板間でできる容量
の可変範囲が小さくなってしまう。結論として、同調回
路のインダクタ部を、他の部品の実装効率を高めるため
に用いた印刷配線基板のパターンで形成した場合には、
同調周波数可変板を印刷配線基板に、近接あるいは離間
する方法では、同調周波数可変幅が小さくなるという問
題点があった。そこで本発明は、同調回路のインダクタ
部をパターンで形成した印刷配線基板を用いた場合にも
、十分に大きく同調周波数を可変できるようにすること
を目的としたものである。Problems to be Solved by the Invention In the above configuration, when the tuning inductor section 2 is formed by a pattern of an upright printed wiring board instead, the tuning frequency variable plate 6 is changed as in the conventional configuration.
In the method of approaching or separating on the pattern side that constitutes the tuning inductor section, since there are multiple electronic components on the printed wiring board, the distance that can be approached to the tuning inductor section is limited, and as a result, the tuning The variable range of the capacitance formed between the inductor section and the variable tuning frequency plate becomes small. Also, on the back side of the printed wiring board,
Even with the method of placing the tuning frequency variable plates close to each other or separating them, the dielectric of the printed wiring board exists between the tuning inductor section and the tuning frequency variable plate, so the tuning inductor section and the tuning frequency variable board are more effective than when there is no dielectric. The variable range of capacitance between the plates becomes smaller. In conclusion, if the inductor section of the tuned circuit is formed using the pattern of the printed wiring board used to increase the mounting efficiency of other components,
The method of placing the variable tuning frequency board close to or away from the printed wiring board has the problem that the variable tuning frequency width becomes small. SUMMARY OF THE INVENTION Therefore, an object of the present invention is to make it possible to vary the tuning frequency to a sufficiently large extent even when a printed wiring board in which the inductor section of the tuning circuit is formed in a pattern is used.
課題を解決するだめの手段
この目的を達成する為に、本発明は同調回路のインダク
タ部をパターンで形成した印刷配線基板の裏面に密着ま
たは近接して回動できる同調周波数可変板をベース配線
基板に植設したものである。Means for Solving the Problems In order to achieve this object, the present invention provides a base wiring board with a tuned frequency variable board that can be rotated in close contact with or close to the back surface of a printed wiring board on which the inductor portion of a tuned circuit is formed in a pattern. It was planted in
作用
この発明により同調周波数可変板は、印刷配線基板の裏
面に密着または近接して、印刷配線基板上にパターンで
形成された同調インダクタ部を横切る様に回動でき、こ
の場合印刷配線基板の同調インダクタ部と同調周波数可
変板は常に近接したものとなるので、同調インダクタ部
と同調周波数可変板間の容量を調整して同調周波数を大
きく可変することができる。According to the present invention, the variable tuning frequency plate can be rotated in close contact with or in close proximity to the back surface of the printed wiring board so as to traverse the tuning inductor section formed in a pattern on the printed wiring board. Since the inductor section and the variable tuning frequency plate are always close to each other, the tuning frequency can be greatly varied by adjusting the capacitance between the tuning inductor section and the variable tuning frequency plate.
実施例
以下、本発明の一実施例として、発振回路の同調インダ
クタ部をパターンで形成した印刷配線基板を例にとり、
図面を参照しながら説明する。第１図および第２図にお
いて、７は金属板より成るシールドケースである。この
シールドケース７の内下部には、ベース配線基板８が設
けられており、又、このベース配線基板８上は、金属製
の仕切板９で４ブロツクに仕切られている。各ブロック
内には図示していないが多くの電子部品が実装されてい
る。１ｏは同調周波数可変ブロックであり、ここには、
第２図すに示した、片面に発振回路の同調インダクタ部
１１ｂをパターンで形成した印刷配線基板１１が立設さ
れている。この印刷配線基板１１のパターン面側には、
発振回路を形成する複数の電子部品１１１Ｌが実装され
ており、又、同調インダクタ部１１ｂの裏面に密着（ま
たは近接して）して、金属製の同調周波数可変板１２が
設けられている。上記同調周波数可変板１２は、第２図
ａ、ｃに示すように板体状であり、その−端側から足１
３が下方にのばされ、この足１３がベース配線基板８に
植設されているのである。そして、この状態において足
１３は、ペース配線基板８のアースパターン１４と半田
付け１５で固定されている。上記構成において、印刷配
線基板１１の同調周波数を可変するには、同調周波数可
変板１２を、その足１３を支点にして印刷配線基板１１
の裏面に密着して（または近接して）同調インダクタ部
１１ｂを横切るように回転可動させることにより同調イ
ンダクタ部１１ｂと同調周波数可変板１２間の容量を変
化させて実現している。EXAMPLE Hereinafter, as an example of the present invention, a printed wiring board in which a tuning inductor section of an oscillation circuit is formed with a pattern will be taken as an example.
This will be explained with reference to the drawings. In FIGS. 1 and 2, 7 is a shield case made of a metal plate. A base wiring board 8 is provided at the inner lower part of the shield case 7, and the base wiring board 8 is partitioned into four blocks by metal partition plates 9. Although not shown, many electronic components are mounted in each block. 1o is a tuned frequency variable block, where:
As shown in FIG. 2, a printed wiring board 11 having a pattern of a tuning inductor portion 11b of an oscillation circuit formed on one side thereof is provided upright. On the pattern side of this printed wiring board 11,
A plurality of electronic components 111L forming an oscillation circuit are mounted, and a metal tuning frequency variable plate 12 is provided in close contact with (or in close proximity to) the back surface of the tuning inductor portion 11b. The variable tuning frequency plate 12 has a plate shape as shown in FIGS.
3 is extended downward, and this leg 13 is planted in the base wiring board 8. In this state, the leg 13 is fixed to the ground pattern 14 of the pace wiring board 8 by soldering 15. In the above configuration, in order to vary the tuning frequency of the printed wiring board 11, the tuning frequency variable board 12 is moved around the printed wiring board 11 using its legs 13 as fulcrums.
This is realized by changing the capacitance between the tuning inductor section 11b and the tuning frequency variable plate 12 by rotating the tuning inductor section 11b in close contact with (or in close proximity to) the back surface of the tuning inductor section 11b.
まだ微調整として同調周波数可変板１２を印刷配線基板
１１に近接させたり、離したりする。この際、同調周波
数可変板１２は板体であるので、有効面積が大きく、し
たがって、前記容量の変化も大きくなり同調周波数の可
変幅を大きくする事ができる。As a fine adjustment, the variable tuning frequency plate 12 is brought closer to or separated from the printed wiring board 11. At this time, since the tuning frequency variable plate 12 is a plate, its effective area is large, and therefore the change in the capacitance is also large, making it possible to widen the variable range of the tuning frequency.
なお、本実施例では発振回路の同調インダクタ部１ｉｂ
をパターン形成した印刷配線基板１１であったが、ＶＨ
Ｆ帯及びυＨＦ帯で使用される複同調回路のインダクタ
部をパターン形成した印刷配線基板であっても、同効果
が得られる事はいうまでもない。Note that in this embodiment, the tuning inductor section 1ib of the oscillation circuit
The printed wiring board 11 was patterned with VH
It goes without saying that the same effect can be obtained even with a printed wiring board in which the inductor portion of a double-tuned circuit used in the F band and υHF band is patterned.
発明の効果
本発明により、同調周波数可変板は、印刷配線基板の裏
面に密着してまたは近接して、印刷配線基板上にパター
ンで形成された同調インダクタ部を横切るように回動で
きるので、同調インダクタ部と同調周波数可変板間の容
量を大きく調整でき、よって同調周波数を大きく可変す
る事ができるのである。しかも、同調周波数可変板は板
体であるので有効面積が大きく、したがって、同調周波
数の可変幅を大きくできるのである。インダクタ部をパ
ターン化した印刷配線基板を用いる事により、従来の同
調インダクタ部であるＵ字型の金属板を用いた構造より
も、同調周波数可変ブロックにおける部品の実装効率を
高めて高周波回路装置の小型化を図ることができる。Effects of the Invention According to the present invention, the variable tuning frequency plate can be rotated in close contact with or in close proximity to the back surface of the printed wiring board and across the tuning inductor section formed in a pattern on the printed wiring board, so that the tuning The capacitance between the inductor section and the variable tuning frequency plate can be adjusted to a large extent, and therefore the tuning frequency can be greatly varied. Moreover, since the variable tuning frequency plate is a plate, it has a large effective area, and therefore, the range in which the tuning frequency can be varied can be increased. By using a printed wiring board with a patterned inductor section, the mounting efficiency of components in the variable tuning frequency block is improved compared to the conventional structure using a U-shaped metal plate for the tuning inductor section, and it is possible to improve the mounting efficiency of components in high-frequency circuit devices. Miniaturization can be achieved.
第１図は本発明の一実施例の斜視図、第２図ａ。
ｂはその要部の正面図、第２図Ｃはその要部の斜視図、
第３図１は従来例の斜視図、第３図すはその要部の正面
図である。
７・・・・・・シールドケース、８・・・・・・ベース
配線基板、９・・・・・・仕切板、１０・・・・・・同
調周波数可変ブロック、１１・・・・・・印刷配線基板
、１２・・・・・・同調周波数可変板、１３・・・・・
・足、１４・・・・・・アースパターン。
代理人の氏名 弁理士 粟 野 重 孝 ほか１各階
ワ
（ｃＬ）FIG. 1 is a perspective view of an embodiment of the present invention, and FIG. 2a is a perspective view of an embodiment of the present invention. b is a front view of the main part, FIG. 2C is a perspective view of the main part,
3. FIG. 3 is a perspective view of a conventional example, and FIG. 3 is a front view of its main parts. 7... Shield case, 8... Base wiring board, 9... Partition plate, 10... Tuning frequency variable block, 11... Printed wiring board, 12... Tuning frequency variable board, 13...
・Foot, 14...Earth pattern. Name of agent: Patent attorney Shigetaka Awano and others on each floor (cL)
Claims (1)
たベース配線基板と、このベース配線基板上に立設され
るとともに、同調回路のインダクタ部をパターンで形成
した印刷配線基板と、この印刷配線基板の裏面に近接、
または密着して上記ベース配線基板に植設した同調周波
数可変板とを備え、上記同調周波数可変板は印刷配線基
板の裏面に近接、または密接して回動させる構成とした
高周波回路装置。A shield case, a base wiring board provided in the shield case, a printed wiring board standing upright on the base wiring board and having an inductor portion of a tuned circuit formed in a pattern, and a printed wiring board of the printed wiring board. Close to the back,
Alternatively, a high frequency circuit device comprising a variable tuning frequency plate embedded in the base wiring board in close contact with the base wiring board, and the variable tuning frequency board is configured to be rotated close to or in close contact with the back surface of the printed wiring board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63313395A JP2825828B2 (en) | 1988-12-12 | 1988-12-12 | High frequency circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63313395A JP2825828B2 (en) | 1988-12-12 | 1988-12-12 | High frequency circuit device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02159127A true JPH02159127A (en) | 1990-06-19 |
| JP2825828B2 JP2825828B2 (en) | 1998-11-18 |
Family
ID=18040754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63313395A Expired - Fee Related JP2825828B2 (en) | 1988-12-12 | 1988-12-12 | High frequency circuit device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2825828B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0685700A (en) * | 1992-09-02 | 1994-03-25 | Matsushita Electric Ind Co Ltd | Pll frequency synthesizer tuner |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5331711U (en) * | 1976-08-24 | 1978-03-18 |
-
1988
- 1988-12-12 JP JP63313395A patent/JP2825828B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5331711U (en) * | 1976-08-24 | 1978-03-18 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0685700A (en) * | 1992-09-02 | 1994-03-25 | Matsushita Electric Ind Co Ltd | Pll frequency synthesizer tuner |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2825828B2 (en) | 1998-11-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |