JPS60223314A - Lc band pass filter - Google Patents
Lc band pass filterInfo
- Publication number
- JPS60223314A JPS60223314A JP8045384A JP8045384A JPS60223314A JP S60223314 A JPS60223314 A JP S60223314A JP 8045384 A JP8045384 A JP 8045384A JP 8045384 A JP8045384 A JP 8045384A JP S60223314 A JPS60223314 A JP S60223314A
- Authority
- JP
- Japan
- Prior art keywords
- section
- turns
- series
- earth
- winding
- 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
- Filters And Equalizers (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は各種電子機器に利用されるコイル部とコンデン
サ部を組み合わせたＬＣバンドパスフィルターに関する
ものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an LC bandpass filter that combines a coil section and a capacitor section and is used in various electronic devices.
従来例の構成とその問題点
従来から使用されているＬＣバンドパスフィルターは一
般的に第１図のような等何回路で示されるようにコイル
部りとコンデンサ部Ｃを直列に接続しだシリーズスパン
部と、コイル部りとコンデンサ部Ｃを並列に接続したパ
ラスパン部をいくつか組合せてＬＯバンドパスフィルタ
ーを構成されており、第２図に示すように高域帯に減衰
極トを具備させる場合、第３図のようにシリーズスパン
部にコンデンサ部Ｃ′を並列に接続した等何回路構成と
なり、コンデンサＣ′が１個多く必要で、コスト的に高
価となり、又、形状も大きくなり、所定の減衰量を具備
する安価、小形のＬＣバンドパスフィルターを構成する
ことが困難であった。Conventional configuration and its problems Conventionally used LC bandpass filters are generally series filters in which a coil section and a capacitor section C are connected in series, as shown in the circuit shown in Figure 1. An LO bandpass filter is constructed by combining a span section and several paraspan sections in which the coil section and capacitor section C are connected in parallel, and as shown in Figure 2, the LO bandpass filter has an attenuation pole in the high frequency band. In this case, as shown in Fig. 3, the circuit configuration is such that the capacitor section C' is connected in parallel to the series span section, and one more capacitor C' is required, which increases the cost and the size. It has been difficult to construct an inexpensive, small-sized LC bandpass filter with a predetermined amount of attenuation.
発明の目的
本発明はこのような従来の欠点を除去するもので形状を
大きくせず、安価で所定の減衰量を得ることを目的とす
るものである。OBJECTS OF THE INVENTION The present invention aims to eliminate such conventional drawbacks, and to obtain a predetermined amount of attenuation at low cost without increasing the size.
発明の構成
この目的を達成するために本発明のＬＣバンドパスフィ
ルターは、ＬＣシリーズスパン部におけるコイル部 の
巻方向と逆方向にアース巻線を１ターン以上重ね巻く構
成とするものである。このようにアース巻線の巻方向を
工夫するだけで形状を変えることなく、安価で所定の減
衰量を具備するＬＣバンドパスフィルターを得ることが
可能トなる。Structure of the Invention In order to achieve this object, the LC bandpass filter of the present invention has a structure in which the earth winding is wound over one turn or more in the opposite direction to the winding direction of the coil part in the LC series span part. In this way, it is possible to obtain an inexpensive LC bandpass filter having a predetermined attenuation amount without changing the shape simply by changing the winding direction of the ground winding.
実施例の説明
以下、本発明の一実施例を２段形のＬＣバンドパスフィ
ルターについて第４図〜第６図で説明する。DESCRIPTION OF THE EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 4 to 6 for a two-stage LC bandpass filter.
第４図は２段形のＬＯバンドパスフィルターの一般的な
等何回路である。図中Ｌ２．Ｃ２はシリーズスパン部の
コイル部及びコンデンサ部である。Ｌｌ。FIG. 4 shows a general equivalence circuit of a two-stage LO bandpass filter. L2 in the figure. C2 is a coil section and a capacitor section of the series span section. Ll.
Ｃ１ハパラスパン部のコイル部及びコンデンサ部である
。Ｅはアースラインを示す。第５図は本発明の２段形の
ＬＣバンドパスフィルターの構成における一例であり、
図中１１１′ｉ多連形ボビン、２はパラスパンのチップ
コンデンサ部、３はパラスパン部のコイル部、４はシリ
ーズスパンのコイル部、６はアース端子、６はアース巻
線を示す。第５図はシリーズスパン部におけるコイル部
４と逆方向にアース巻線６を２ターン重ね巻いたものを
示す。These are the coil section and capacitor section of the C1 Hapara span section. E indicates the earth line. FIG. 5 is an example of the configuration of a two-stage LC bandpass filter of the present invention,
In the figure, 111'i is a multiple bobbin, 2 is a para-span chip capacitor section, 3 is a para-span coil section, 4 is a series-span coil section, 6 is a ground terminal, and 6 is a ground winding. FIG. 5 shows a series span section in which two turns of the earth winding 6 are wound in the opposite direction to the coil section 4.
第６図はこのアース巻線６の巻数を１〜６ターンの間で
変化させた場合の振幅−周波数特性を示すものでＡは○
ターン、Ｂは１ターン、Ｃは３ターン、Ｄは５ターンの
場合を示す。Figure 6 shows the amplitude-frequency characteristics when the number of turns of the earth winding 6 is changed between 1 and 6 turns, and A is ○.
B indicates 1 turn, C indicates 3 turns, and D indicates 5 turns.
第６図で明らかなように、シリーズスパン部のコイル部
４と逆方向に重ね巻いたアース巻線６の巻数を変化させ
るだけで、減衰極ｆ〜を自由にコントロールすることが
でき、形状を変えることなく安価で所定の減衰量を具備
しだＬＣバンドパスフィルターを構成することが可能で
あり、この産業的効果は大なるものがあると考える。As is clear from Fig. 6, the attenuation pole f~ can be freely controlled by simply changing the number of turns of the earth winding 6, which is overlapped in the opposite direction to the coil part 4 of the series span part, and the shape can be changed. It is possible to construct an LC bandpass filter having a predetermined attenuation amount at low cost without changing the method, and we believe that this has a great industrial effect.
なお、実施例では２段形のＬＣバンドパスフィルターに
ついて述べたが、２段以上の場合においても検剃したが
、同様の効果は得られた。又、アース巻線６をシリーズ
スパン部のコイル部巻方向と同一巻方向にした場合は全
くこの効果が無いことも実験の上、確認できている。In the example, a two-stage LC band-pass filter was described, but shaving was also performed in the case of two or more stages, and similar effects were obtained. Furthermore, it has been confirmed through experiments that this effect is completely absent when the ground winding 6 is wound in the same direction as the coil part winding direction of the series span part.
発明の効果
以上のように本発明のＬＣバンドパスフィルターは、シ
リーズスパン部のコイル部上に、このコイル部の巻方向
と逆方向にアース巻線を１ターン以上重ね巻くことによ
り、減衰極を自由にコントロールでき、しかも大形化す
ることもなく、コスト面でも著しく有利にすることがで
きるなどの利点をもち、実用的価値の大なるものである
。Effects of the Invention As described above, the LC bandpass filter of the present invention can reduce the attenuation pole by winding the earth winding one turn or more over the coil part of the series span part in the opposite direction to the winding direction of this coil part. It has the advantage of being able to be freely controlled, not increasing in size, and being significantly advantageous in terms of cost, and has great practical value.
第１図は一般的なＬＣバンドパスフィルターの等価回路
図、第２図は高域に減衰極をもった一般的なＬＣバンド
パスフィルターの振幅−周波数％性図、第３図は第２図
で示す振幅−周波数特性をもつ一般的なＬＯバンドパス
フィルターの等価回路図、第４図は本発明のＬＣバンド
パスフィルターの一実施例を示す等価回路図、第５図は
本発明の一実施例に示したＬＣバンドパスフィルターの
構成図、第６図は本発明のシリーズスパン部におけるコ
イル部巻線と逆方向に重ね巻いたアース巻線を１〜６タ
ーン変化させた場合の振幅−周波数特性図である。
Ｌｌ、Ｌ２・・・・・コイル部、Ｃ１，Ｃ２・・・・・
コンデンサ部、１・・・・・・多連形ボビン、２・・・
・・コンデンサ部、３・・・・・・コイル部、４・・・
・・・コイル部、６・・・・・アース端子、６・・・・
アース巻線。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名第１
図
第２図
第６図Figure 1 is an equivalent circuit diagram of a general LC bandpass filter, Figure 2 is an amplitude-frequency % characteristic diagram of a general LC bandpass filter with an attenuation pole in the high range, and Figure 3 is a diagram of the 2nd diagram. FIG. 4 is an equivalent circuit diagram of a general LO bandpass filter having the amplitude-frequency characteristic shown in FIG. The configuration diagram of the LC bandpass filter shown in the example, FIG. 6 shows the amplitude vs. frequency when the earth winding wound in the opposite direction to the coil winding in the series span part of the present invention is changed by 1 to 6 turns. It is a characteristic diagram. Ll, L2... Coil section, C1, C2...
Capacitor part, 1...Multiple bobbin, 2...
...Capacitor section, 3... Coil section, 4...
・・・Coil part, 6... Earth terminal, 6...
Earth winding. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 6
Claims (1)
ン部と、コイル部とコンデンサ部を並列に接続したパラ
スパン部を少なくとも１箇所具備し、上記シリーズスパ
ン部におけるコイル部の上へ、このコイル部の巻方向と
逆方向にアース巻線を１タ一ン以上、重ね巻いたことを
特徴とするＬＣバンドパスフィルター。At least one series span section has a series span section in which a coil section and a capacitor section are connected in series, and a paraspan section in which a coil section and a capacitor section are connected in parallel. An LC bandpass filter characterized by having a ground winding wound over one turn or more in the opposite direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8045384A JPS60223314A (en) | 1984-04-20 | 1984-04-20 | Lc band pass filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8045384A JPS60223314A (en) | 1984-04-20 | 1984-04-20 | Lc band pass filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60223314A true JPS60223314A (en) | 1985-11-07 |
| JPH037289B2 JPH037289B2 (en) | 1991-02-01 |
Family
ID=13718674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8045384A Granted JPS60223314A (en) | 1984-04-20 | 1984-04-20 | Lc band pass filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60223314A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021517400A (en) * | 2018-03-08 | 2021-07-15 | コングスベルグ ディフェンス＆エアロスペース アクティーゼルスカブ | Correction unit for radio frequency filters |
| JP2021534582A (en) * | 2018-08-28 | 2021-12-09 | インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Machines Corporation | Cold Dispersion-Resistance Hybrid Attenuator Packaging and Thermal Balancing for Quantum Microwave Circuits |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5412341U (en) * | 1977-06-28 | 1979-01-26 | ||
| JPS5440429A (en) * | 1977-09-01 | 1979-03-29 | Caterpillar Tractor Co | Track assemblied body |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5412341B2 (en) * | 1974-10-30 | 1979-05-22 |
-
1984
- 1984-04-20 JP JP8045384A patent/JPS60223314A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5412341U (en) * | 1977-06-28 | 1979-01-26 | ||
| JPS5440429A (en) * | 1977-09-01 | 1979-03-29 | Caterpillar Tractor Co | Track assemblied body |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021517400A (en) * | 2018-03-08 | 2021-07-15 | コングスベルグ ディフェンス＆エアロスペース アクティーゼルスカブ | Correction unit for radio frequency filters |
| US11962290B2 (en) | 2018-03-08 | 2024-04-16 | Kongsberg Defence & Aerospace As | Correction unit for radio frequency filter |
| JP2021534582A (en) * | 2018-08-28 | 2021-12-09 | インターナショナル・ビジネス・マシーンズ・コーポレーションInternational Business Machines Corporation | Cold Dispersion-Resistance Hybrid Attenuator Packaging and Thermal Balancing for Quantum Microwave Circuits |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH037289B2 (en) | 1991-02-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |