JPS6252482B2 - - Google Patents
Info
- Publication number
- JPS6252482B2 JPS6252482B2 JP19536582A JP19536582A JPS6252482B2 JP S6252482 B2 JPS6252482 B2 JP S6252482B2 JP 19536582 A JP19536582 A JP 19536582A JP 19536582 A JP19536582 A JP 19536582A JP S6252482 B2 JPS6252482 B2 JP S6252482B2
- Authority
- JP
- Japan
- Prior art keywords
- line
- slot
- microstrip
- microstrip line
- lines
- 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
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P3/00—Waveguides; Transmission lines of the waveguide type
- H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
- H01P3/08—Microstrips; Strip lines
- H01P3/081—Microstriplines
Landscapes
- Waveguide Connection Structure (AREA)
- Waveguides (AREA)
Description
【発明の詳細な説明】
（技術分野）
本発明は、２本のマイクロ波伝送線路が電気的
特性良く交差するマイクロ波集積回路に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to a microwave integrated circuit in which two microwave transmission lines intersect with each other with good electrical characteristics.
（背景技術）
従来のこの種回路を第１図に示す。１および２
はマイクロストリツプ線路、３は絶縁層を介して
交差する立体交差部、４〜７は信号端子である。
４から入つた信号は、１のマイクロストリツプ線
路を伝送して５に出力されるが、３の立体交差部
で、一部の信号が２のマイクロストリツプ線路に
結合して６および７端子に出力される。このよう
に、従来のこの種回路は２本の線路間に結合が生
じ、高アイソレーシヨンを得ることができなかつ
た。(Background Art) A conventional circuit of this type is shown in FIG. 1 and 2
3 is a microstrip line, 3 is an overpass crossing through an insulating layer, and 4 to 7 are signal terminals.
The signal input from 4 is transmitted through the microstrip line 1 and output to 5, but at the overpass intersection of 3, some of the signals are coupled to the microstrip line 2 and transmitted to 6 and 5. Output to terminal 7. As described above, in the conventional circuit of this type, coupling occurs between the two lines, and high isolation cannot be obtained.
（発明の課題）
本発明は上記欠点を解決することを目的とし、
その特徴は、２本のマイクロストリツプ線路の交
差構造において、第１のマイクロストリツプ線路
を基板の裏側のスロツト線路に変換する第１の変
換手段と、該スロツト線路を変換手段からの電気
長が相互に等しくなるごとく相互に近接配置して
構成される結合スロツト線路（コプレナ線路）
と、該結合スロツト線路を第２のマイクロストリ
ツプ線路と直交して交差させる構造と、前記結合
スロツト線路を前記交差部からの電気長が相互に
等しくなるごとく伸ばして結合し結合点でスロツ
ト線路とマイクロストリツプ線路を交差させてマ
イクロストリツプ線路に変換する第２の変換手段
とを有するごときマイクロ波集積回路にある。(Problems to be solved by the invention) The present invention aims to solve the above-mentioned drawbacks,
Its features include a first converting means that converts the first microstrip line into a slot line on the back side of the board, and a first converting means that converts the first microstrip line into a slot line on the back side of the board, and Coupled slot lines (coplanar lines) that are arranged close to each other so that their electrical lengths are equal to each other.
and a structure in which the coupled slot line crosses the second microstrip line orthogonally, and the coupled slot line is stretched and coupled so that the electrical lengths from the intersection are equal to each other, and the slot is inserted at the coupling point. The microwave integrated circuit has a second converting means for converting the line and the microstrip line into a microstrip line by crossing the line.
（発明の構成および作用）
第２図は本発明の実施例であつて、８は基板裏
側のスロツト線路、９は基板裏側の結合スロツト
線路（コプレナ線路）、１０はマイクロストリツ
プ線路とスロツト線路の変換部である。線路間の
変換は、基板に穴をあけて短絡したり、あるいは
第２図のように、４分の１波長の線路を用いたモ
ード変換を利用すればよい。(Structure and operation of the invention) FIG. 2 shows an embodiment of the present invention, in which 8 is a slot line on the back side of the board, 9 is a coupled slot line (coplanar line) on the back side of the board, and 10 is a microstrip line and slot line. This is the conversion part of the line. Conversion between lines can be achieved by short-circuiting by making a hole in the substrate, or by using mode conversion using a quarter-wavelength line as shown in FIG.
次に動作について説明する。４から入つた信号
は、変換部でマイクロストリツプ線路からスロツ
ト線路に変換され、スロツト線路にそつて伝搬す
る。変換部から一定の長さ（４分の１波長の奇数
倍）のところでスロツト線路を平行に近接させ、
結合スロツト線路（コプレナ線路）を形成させ
る。結合スロツト線路には、電界が互いに逆方向
のコプレナモードが伝搬する。従つて第２図のよ
うに、結合スロツト線路とマイクロストリツプ線
路とが互いに直交して交差していると、両線路間
には結合が生じない。結合スロツト線路を伝搬し
た信号は再びスロツト線路に分離した後、同じ一
定の長さ（４分の１波長の奇数倍）のところでス
ロツト線路からマイクロストリツプ線路に変換さ
れ、５に出力される。 Next, the operation will be explained. The signal input from 4 is converted from the microstrip line to the slot line in the conversion section, and propagates along the slot line. Place the slot lines close to each other in parallel at a certain length (odd multiple of a quarter wavelength) from the conversion section,
A combined slot line (coplanar line) is formed. Coplanar modes with electric fields in opposite directions propagate in the coupled slot line. Therefore, if the coupled slot line and the microstrip line intersect orthogonally to each other as shown in FIG. 2, no coupling will occur between the two lines. The signal propagated through the coupled slot line is separated again into the slot line, and then converted from the slot line to the microstrip line at the same constant length (an odd multiple of a quarter wavelength) and output to 5. .
６から信号が入つた場合、交差部において結合
スロツト線路に電界が同方向のスロツトモードを
励振する。このモードは左右のスロツト線路をそ
れぞれ伝搬していくが、変換部１０のところで互
いに逆方向の電界となり、互いに打ち消し合つて
マイクロストリツプ線路に信号は変換されない。 When a signal is input from 6, an electric field excites slot modes in the same direction in the coupled slot line at the intersection. This mode propagates through the left and right slot lines, but at the converter 10, the electric fields are in opposite directions and cancel each other out, so that no signal is converted to the microstrip line.
変換部１０におけるストリツプ線路とスロツト
線路のインピーダンスの関係は、例えば双方共50
オームとする。 The relationship between the impedances of the strip line and the slot line in the converter 10 is, for example, 50
Let it be ohm.
（発明の効果）
以上説明したように、マイクロストリツプ線路
と結合スロツト線路の間に結合が生じないため、
２本のマイクロストリツプ線路間のアイソレーシ
ヨンを高くすることができる。(Effects of the Invention) As explained above, since no coupling occurs between the microstrip line and the coupling slot line,
Isolation between two microstrip lines can be increased.
第１図は従来の交差線路の構成図、第２図は本
発明の実施例の構成図である。
１，２……マイクロストリツプ線路、３……交
差部、４〜７……信号の入出力端子、８……スロ
ツト線路、９……結合スロツト線路（コプレナ線
路）、１０……マイクロストリツプ線路とスロツ
ト線路の変換部。
FIG. 1 is a block diagram of a conventional crossing line, and FIG. 2 is a block diagram of an embodiment of the present invention. 1, 2...Microstrip line, 3...Intersection, 4-7...Signal input/output terminal, 8...Slot line, 9...Coupled slot line (coplanar line), 10...Microstripe line Conversion section for lip line and slot line.
Claims (1)
おいて、第１のマイクロストリツプ線路を基板の
裏側のスロツト線路に変換する第１の変換手段
と、該スロツト線路を変換手段からの電気長が相
互に等しくなるごとく相互に近接配置して構成さ
れる結合スロツト線路と、該結合スロツト線路を
第２のマイクロストリツプ線路と直交して交差さ
せる構造と、前記結合スロツト線路を前記交差部
からの電気長が相互に等しくなるごとく伸ばして
結合し結合点でスロツト線路とマイクロストリツ
プ線路を交差させてマイクロストリツプ線路に変
換する第２の変換手段とを有することを特徴とす
るマイクロ波集積回路。1. In the cross structure of two microstrip lines, a first converting means converts the first microstrip line into a slot line on the back side of the board, and a first converting means converts the first microstrip line into a slot line on the back side of the board, and Coupled slot lines arranged close to each other so as to be equal to each other; a structure in which the coupled slot lines intersect orthogonally with a second microstrip line; and a second converting means for converting the slot line and the microstrip line into a microstrip line by stretching and connecting the lines so that their electrical lengths are equal to each other, and crossing the slot line and the microstrip line at the connection point. wave integrated circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19536582A JPS5986301A (en) | 1982-11-09 | 1982-11-09 | Microwave integrated circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19536582A JPS5986301A (en) | 1982-11-09 | 1982-11-09 | Microwave integrated circuit device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5986301A JPS5986301A (en) | 1984-05-18 |
| JPS6252482B2 true JPS6252482B2 (en) | 1987-11-05 |
Family
ID=16339958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19536582A Granted JPS5986301A (en) | 1982-11-09 | 1982-11-09 | Microwave integrated circuit device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5986301A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0714124B2 (en) * | 1988-12-19 | 1995-02-15 | 三菱電機株式会社 | Microwave integrated circuit device |
-
1982
- 1982-11-09 JP JP19536582A patent/JPS5986301A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5986301A (en) | 1984-05-18 |
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