JPH0787327B2 - Balun coil - Google Patents
Balun coilInfo
- Publication number
- JPH0787327B2 JPH0787327B2 JP60135352A JP13535285A JPH0787327B2 JP H0787327 B2 JPH0787327 B2 JP H0787327B2 JP 60135352 A JP60135352 A JP 60135352A JP 13535285 A JP13535285 A JP 13535285A JP H0787327 B2 JPH0787327 B2 JP H0787327B2
- Authority
- JP
- Japan
- Prior art keywords
- coil
- coils
- balun
- ferrite substrate
- balun coil
- 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
- 229910000859 α-Fe Inorganic materials 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000010304 firing Methods 0.000 claims description 5
- 238000007639 printing Methods 0.000 claims description 5
- 239000003973 paint Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Coils Or Transformers For Communication (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明はアンテナ等に用いられるバランコイルに関す
る。TECHNICAL FIELD The present invention relates to a balun coil used for an antenna or the like.
従来の技術 従来のバランコイルは、第３図のように構成されている
〔トランジスタ技術、1984年第７号、第444頁〈図14−2
0〉「伝送線路トランスの応用」CQ出版〈株〉発行〕。
つまり、コイル22,23,24,25の４つのコイルをリングコ
ア26に巻回し、コイル22の一端を端子T1、コイル22の他
端とコイル25の一端とを接続して端子T2、コイル25の他
端とコイル23の一端とを接続して端子T3、コイル23の他
端とコイル24の一端とを接続して端子T4、コイル24の他
端を端子T5としている。Conventional Technology A conventional balun coil is constructed as shown in FIG. 3 [Transistor technology, No. 7, 1984, page 444 (FIG. 14-2.
0>"Application of transmission line transformer" CQ Publishing Co., Ltd.].
In other words, turning 26 wound ring core four coils of coil 22, 23, 24, 25, the terminal T 1 of the end of the coil 22, the terminal T 2 connected to one end of the other end and the coil 25 of the coil 22, the coil The other end of 25 and one end of the coil 23 are connected to each other, the terminal T 3 is connected, and the other end of the coil 23 and one end of the coil 24 are connected to each other, so that the terminal T 4 and the other end of the coil 24 are connected to the terminal T 5 .
発明が解決しようとする問題点 このような従来の構造では、コアがリングコア26のよう
に形状が閉じているため、コイル22〜25の巻回作業が非
常に面倒であり、そのため生産コストが上がり、価格が
高くなる。しかも、バランコイルの接続、固定作業も面
倒であって使い勝手が悪く、端子T1〜T5を他の回路部分
に接続するので空中配線のようになって、特性が不安定
になる。Problems to be Solved by the Invention In such a conventional structure, since the core has a closed shape like the ring core 26, the winding work of the coils 22 to 25 is very troublesome, which increases the production cost. , The price will be higher. Moreover, the connection and fixing work of the balun coil is troublesome and inconvenient, and since the terminals T 1 to T 5 are connected to other circuit parts, it becomes like an aerial wiring and the characteristics become unstable.
本発明は性能の安定化を図ると共に大量生産に適したバ
ランコイルを提供することを目的とする。It is an object of the present invention to provide a balun coil suitable for mass production while stabilizing its performance.
問題点を解決するための手段 本発明のバランコイルは、フェライト基板の表裏両面に
それぞれ導電性塗料を印刷して焼成することにより折れ
線状の複数のコイルを形成するとともに、この折れ線状
の複数のコイルを各折曲部が表裏面において相互にずれ
て位置するように配置して、少なくとも１組の伝送線路
トランスを構成し、フェライト基板の一方の面に設けら
れた前記コイルと他方の面に設けられた前記コイルとを
結合させるとともに、前記コイルのうちの所定のコイル
同士を接続したことを特徴とする。Means for Solving the Problems The balun coil of the present invention forms a plurality of broken line-shaped coils by printing and firing conductive paint on both front and back surfaces of a ferrite substrate, and a plurality of broken line-shaped coils are formed. The coils are arranged such that the bent portions are displaced from each other on the front and back surfaces to form at least one set of transmission line transformers, and the coils provided on one surface of the ferrite substrate and the other surface are arranged on the other surface. It is characterized in that the coils provided are connected to each other and predetermined coils of the coils are connected to each other.
作用 この構成によると、フェライト基板への印刷、焼成作業
などにより、必要なコイルを形成出来、従来のような煩
わしい巻回作業を必要としないため、大量生産に適す
る。また、各コイルの線長を等しくすることが出来、コ
イル間の結合のバラッキ、特性インピーダンスのバラッ
キを非常に小さなものとすることが出来る。更に、固定
作業も容易で、使い勝手も良好である。Operation According to this configuration, the necessary coil can be formed by printing on the ferrite substrate, firing work, etc., and it is not necessary to perform a troublesome winding work as in the conventional case, and thus is suitable for mass production. Further, the line lengths of the coils can be made equal, and the variation in the coupling between the coils and the variation in the characteristic impedance can be made extremely small. Further, the fixing work is easy and the usability is good.
実施例 以下、本発明の一実施例を第１図と第２図に基づいて説
明する。Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.
第１図は本発明のバランコイルの平面図で、フェライト
基板に折れ線状のコイルが形成されている。つまり、フ
ェライト基板１にコイル配線用の貫通孔2,3,4,5,6,7を
穿設し、この貫通孔２〜７にはスルーホールメッキを施
こし、フェライト基板１の一方の面（S1）に導電性塗料
を印刷し、焼成することによって、折れ線状のコイル8,
9と接続線10,11を形成し、フェライト基板１の他方の面
（S2）に導電性塗料を印刷し、焼成することによって折
れ線状のコイル12,13と接続線14,15,16を形成して１組
の伝送線路トランスを構成し、前記のスルーホールメッ
キされた貫通孔3,4、６、７を接続点としてそれぞれ折
れ線状のコイル９と12、８と９、12と13を接続してバラ
ンコイルを構成している。また、折れ線状のコイル8,12
間および9,13間は、折れ線状のコイルがそれぞれ千鳥状
に、すなわちフェライト基板１の一方の面（S1）と他方
の面（S2）とにおいて相互にずれて位置するように、配
置されている。17,18,19,20,21はフェライト１に導電性
塗料を印刷、焼成された外部接続端子である。FIG. 1 is a plan view of a balun coil of the present invention, in which a polygonal coil is formed on a ferrite substrate. That is, through holes 2, 3, 4, 5, 6 and 7 for coil wiring are formed in the ferrite substrate 1, and through holes are plated in the through holes 2 to 7 so that one surface of the ferrite substrate 1 is formed. By printing a conductive paint on (S 1 ) and baking it, the polygonal coil 8,
9 and the connecting wires 10 and 11 are formed, a conductive coating is printed on the other surface (S 2 ) of the ferrite substrate 1, and the broken coils 12 and 13 and the connecting wires 14, 15 and 16 are formed by firing. To form a set of transmission line transformers, and using the through-holes 3, 4, 6, 7 plated with through-holes as connecting points to form polygonal coils 9 and 12, 8 and 9, 12 and 13 respectively. They are connected to form a balun coil. In addition, the polygonal coils 8 and 12
And between 9 and 13 are arranged so that the polygonal coils are arranged in a zigzag manner, that is, so that the one surface (S 1 ) of the ferrite substrate 1 and the other surface (S 2 ) are displaced from each other. Has been done. Reference numerals 17, 18, 19, 20, and 21 are external connection terminals obtained by printing and firing conductive paint on the ferrite 1.
第２図はこのようにして構成されたバランコイルの等価
回路を示す。FIG. 2 shows an equivalent circuit of the balun coil thus constructed.
上記実施例ではフェライト基板１の面（S1）（S2）に１
組の伝送線路トランスを構成したが、これは１組に限定
されるものではなく、少なくとも１組であれば同様に実
施できる。In the above embodiment, the surface (S 1 ) (S 2 ) of the ferrite substrate 1 is 1
Although a pair of transmission line transformers is configured, this is not limited to one set, and at least one set can be similarly implemented.
発明の効果 以上説明のように本発明のバランコイルは、フェライト
基板に折れ線状のコイルおよび接続線を形成することに
よって構成されているため、インダクタンス成分を調整
可能とし、また、折れ線状のコイルを千鳥状に配置した
ことで結合係数と容量成分も調整可能であり、コイルの
結合度および特性インピーダンスのバラッキを小さく
し、配線リード線長のバラッキを小さく出来るため、大
量生産に適し、また、固定作業も容易で使い勝手の良好
なものである。EFFECTS OF THE INVENTION As described above, the balun coil of the present invention is configured by forming a broken line coil and a connection line on a ferrite substrate, and therefore, the inductance component can be adjusted, and the broken line coil can be formed. Coupling coefficient and capacitance component can be adjusted by arranging in a staggered pattern, and the degree of coil coupling and characteristic impedance can be reduced, and the variation of wiring lead length can be reduced, making it suitable for mass production and fixed. It is easy to work and easy to use.
第１図は本発明のバランコイルの一実施例の平面図、第
２図は同実施例の等価回路図、第３図は従来のバランコ
イルの平面図である。 １……フェライト基板、2,3,4,5,6,7……貫通孔、8,9,1
2,13……コイル、10,11,14,15,16……接続線、17,18,1
9,20,21……外部接続端子、（S1）……フェライト基板
の一方の面、（S2）……フェライト基板の他方の面FIG. 1 is a plan view of an embodiment of the balun coil of the present invention, FIG. 2 is an equivalent circuit diagram of the same embodiment, and FIG. 3 is a plan view of a conventional balun coil. 1-ferrite substrate, 2,3,4,5,6,7-through hole, 8,9,1
2,13 …… Coil, 10,11,14,15,16 …… Connecting wire, 17,18,1
9,20,21 …… External connection terminals, (S 1 ) …… One side of the ferrite board, (S 2 ) …… The other side of the ferrite board
Claims (1)
性塗料を印刷して焼成することにより折れ線状の複数の
コイルを形成するとともに、この折れ線状の複数のコイ
ルを各折曲部が表裏面において相互にずれて位置するよ
うに配置して、少なくとも１組の伝送線路トランスを構
成し、フェライト基板の一方の面に設けられた前記コイ
ルと他方の面に設けられた前記コイルとを結合させると
ともに、前記コイルのうちの所定のコイル同士を接続し
たバランコイル。1. A plurality of polygonal linear coils are formed by printing conductive paints on both front and back surfaces of a ferrite substrate and firing, and each of the plurality of linear linear coils has a bent portion on the front and back surfaces. At least one pair of transmission line transformers are arranged so as to be displaced from each other, and the coil provided on one surface of the ferrite substrate and the coil provided on the other surface are coupled together. A balun coil in which predetermined coils of the coils are connected to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60135352A JPH0787327B2 (en) | 1985-06-20 | 1985-06-20 | Balun coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60135352A JPH0787327B2 (en) | 1985-06-20 | 1985-06-20 | Balun coil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61293010A JPS61293010A (en) | 1986-12-23 |
| JPH0787327B2 true JPH0787327B2 (en) | 1995-09-20 |
Family
ID=15149746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60135352A Expired - Lifetime JPH0787327B2 (en) | 1985-06-20 | 1985-06-20 | Balun coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0787327B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4715512B2 (en) * | 2005-12-28 | 2011-07-06 | パナソニック電工株式会社 | Electromagnetic induction parts and power supply |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5073544A (en) * | 1973-10-30 | 1975-06-17 | ||
| US4080585A (en) * | 1977-04-11 | 1978-03-21 | Cubic Corporation | Flat coil transformer for electronic circuit boards |
| JPS57108316U (en) * | 1980-12-24 | 1982-07-03 | ||
| JPS58159722U (en) * | 1982-04-19 | 1983-10-25 | 太洋無線株式会社 | Balanced unbalanced converter |
| JPS5986723U (en) * | 1982-11-30 | 1984-06-12 | 株式会社光輪技研 | Daylay line |
-
1985
- 1985-06-20 JP JP60135352A patent/JPH0787327B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61293010A (en) | 1986-12-23 |
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