JPS5983406A - Fin line balanced mixer - Google Patents

Fin line balanced mixer

Info

Publication number
JPS5983406A
JPS5983406A JP19431682A JP19431682A JPS5983406A JP S5983406 A JPS5983406 A JP S5983406A JP 19431682 A JP19431682 A JP 19431682A JP 19431682 A JP19431682 A JP 19431682A JP S5983406 A JPS5983406 A JP S5983406A
Authority
JP
Japan
Prior art keywords
line
coplanar line
finline
conductor
bias
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.)
Pending
Application number
JP19431682A
Other languages
Japanese (ja)
Inventor
Akio Iida
明夫 飯田
Fumio Takeda
武田 文雄
Makoto Matsunaga
誠 松永
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP19431682A priority Critical patent/JPS5983406A/en
Publication of JPS5983406A publication Critical patent/JPS5983406A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D9/00Demodulation or transference of modulation of modulated electromagnetic waves
    • H03D9/06Transference of modulation using distributed inductance and capacitance
    • H03D9/0608Transference of modulation using distributed inductance and capacitance by means of diodes
    • H03D9/0633Transference of modulation using distributed inductance and capacitance by means of diodes mounted on a stripline circuit
    • H03D9/0641Transference of modulation using distributed inductance and capacitance by means of diodes mounted on a stripline circuit located in a hollow waveguide

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Waveguide Connection Structure (AREA)

Abstract

PURPOSE:To make it possible to apply a DC bias to a mixer diode from outside by insulating in terms of DC a part of an earth conductor forming a coplanar line as well as a fin line. CONSTITUTION:Fine lines 5a and 5b are provided on the surface of a dielectric substance put on a housing 1a, and mixer diodes 10a and 10b are set close to the junction part between the fin lines and a coplanar line. With a fin line balanced mixer of such a constitution, metallic wires 11a-11c functioning as mode filters are used to connect an earth conductor 6a and an earth conductor 6b via chip capacitors 14a-14d. Thus the conductor 6b is insulated in terms of DC from the housing 1a by the dielectric substance, and at the same time the center conductor of the coplanar line is insulated in terms of DC from an external circuit by a capacitor 16d. Thus it is possible to apply an external bias to diodes 10a and 10b through bias terminals 20a and 20b respectively.

Description

【発明の詳細な説明】 この発明は、導波管と導波管の中に設ける誘電体基板回
路とから主に形成されるフィンライン平向ミキサに関す
るものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a finline planar mixer mainly formed from a waveguide and a dielectric substrate circuit provided in the waveguide.

第1図は従来のフィンライン平衡ミキサの一例を示す図
であ)、第2図は第1図のA−A’間の断面を示す図で
ある。図において(1a)  (1b)はミキサを形成
する筐体、  (2a) (zb)は導波管、(3)は
誘電体基板、  (sa) (sb)はフィンライン、
(8)はコプレナ線路、  (40a)、 (tub)
はダイオード、  (tla) (11b)(1+c)
は金属ワイヤである。
FIG. 1 is a diagram showing an example of a conventional finline balanced mixer), and FIG. 2 is a cross-sectional view taken along line AA' in FIG. In the figure, (1a) and (1b) are the casings forming the mixer, (2a) and (zb) are the waveguides, (3) are the dielectric substrates, (sa) and (sb) are the fin lines,
(8) is a coplanar line, (40a), (tub)
is a diode, (tla) (11b) (1+c)
is a metal wire.

第1図および第2図を用いて従来のフィンライン平衝ミ
キサの動作を簡単に説明する。
The operation of a conventional finline balanced mixer will be briefly explained using FIGS. 1 and 2.

信号電力は、導波管(2a)に入力し、導波管フィンラ
イン変換(4a)から、フィンライン(5a)を伝搬し
、フィンラインとコプレナ線路の接合部(9)を通りコ
プレナ線路(8)にマウントされているダイオード(1
0a)、 (1ib)に印加される。一方局部発振富力
は導波管(2b)に入力し導波管フィンライン変換(4
1))、フィンライン(5b)t フィンラインコプレ
ナ線路変換(7)を通りコプレナ線路(8)にマウント
されているダイオード(1oa) (+ob) K印加
される。第1図に信号電力および局部発振電力の伝わり
方を示すために信号電力の電界を実線の矢印で局部発振
電力の電界を破線の矢印でそれぞれ示している。
Signal power is input to the waveguide (2a), propagates from the waveguide finline conversion (4a) through the finline (5a), passes through the junction (9) of the finline and coplanar line, and is transferred to the coplanar line ( Diode (1) mounted on
0a), (1ib). On the other hand, the local oscillation power is input to the waveguide (2b) and the waveguide fin line conversion (4
1)), finline (5b) t through the finline coplanar line conversion (7) and mounted on the coplanar line (8) diode (1oa) (+ob) K is applied. In FIG. 1, in order to show how signal power and local oscillation power are transmitted, the electric field of signal power is shown by solid arrows, and the electric field of local oscillation power is shown by broken line arrows.

図に示すように、信号電力はコプレナ線路を奇モードで
伝搬し、ダイオード(1oa)、 (1ob)に同相で
加わシ1局部発振電力はコプレナ線路を偶モードで伝搬
し、ダイオード(1oa)、 (1ob)に逆相で加わ
る。混合された後の工F出力電力は低域通過フィルタ(
121を介して、マイクロストリップ線路(13に出力
される。
As shown in the figure, the signal power propagates through the coplanar line in an odd mode and is applied to the diodes (1oa) and (1ob) in the same phase.The local oscillation power propagates through the coplanar line in an even mode and is applied to the diodes (1oa) and (1ob) in the same phase. (1ob) in reverse phase. After mixing, the F output power is passed through a low-pass filter (
It is output to the microstrip line (13) via 121.

コプレナ線路上にはコプレナ線路上の偶モードの波を通
し、奇モードの波を反射させるモードフィルタの動作を
する金属ワイヤ(+ta)、 (++b)、 (++c
)が設けであるので、コプレナ線路を奇モードで伝搬す
る信号電力は、金属ワイヤ(+1a)、 (nb)によ
り反射され、導波管(2b)には伝わらない。捷た。
Metal wires (+ta), (++b), (++c) act as mode filters that pass even mode waves on the coplanar line and reflect odd mode waves on the coplanar line.
), the signal power propagating in the odd mode on the coplanar line is reflected by the metal wires (+1a) and (nb) and does not propagate to the waveguide (2b). I cut it.

フィンラインコプレナ線路変換(7)において金属ワイ
ヤ(+1b)、 (+1c)は、コプレナ線路に奇モー
ドを励振させないように動作している。コプレナ線路を
偶モードで伝搬する局部発S宙力は、フィンラインとコ
プレナ線路の接合部(9)で反射し、信号電力を入力す
る導波管(2a)には伝わらない。
In the finline coplanar line conversion (7), the metal wires (+1b) and (+1c) operate so as not to excite the odd mode in the coplanar line. The locally generated S aerodynamic force propagating through the coplanar line in an even mode is reflected at the joint (9) between the fin line and the coplanar line, and is not transmitted to the waveguide (2a) into which the signal power is input.

以上のようにミキサが動作するが、ミリ波帯のように特
に高い周波数では、得られる局部発揚器の出力が少なく
なるので、ダイオードに外部からDCバイアス電流を加
えて所要の局部発掘7−カを低減化することがある。従
来のフィンライン平衡ミキサでは、第2図に示すように
、フィンラインおよびコプレナ線路の地導体(6a)(
6b)が筐体(1b)に接触しており、かつ、金属ワイ
ヤ(11a) (+tb)により地導体(6a)と(6
b)とがII O的に接続しているので第1図に示すダ
イオードの極性では、ダイオードにDCバイアスを加え
ることができない欠点がある。
The mixer operates as described above, but at particularly high frequencies such as the millimeter wave band, the output of the local oscillator that can be obtained decreases, so a DC bias current is applied externally to the diode to increase the required local excavation voltage. may be reduced. In the conventional finline balanced mixer, as shown in Fig. 2, the ground conductor (6a) (
6b) is in contact with the housing (1b), and the ground conductor (6a) and (6
b) are connected in an IIO manner, so the polarity of the diode shown in FIG. 1 has the disadvantage that a DC bias cannot be applied to the diode.

この発明は、これらの欠点を除去するため、モードフィ
ルタとして動作させる金属ワイヤをDC的に絶縁し、か
つフィンラインの地導体(+ob)を他の誘電体を使っ
て筐体(1b)から絶縁してダイオードに外部バイアス
を加えられるようにしたもので、以下図面について詳細
圧説明する。
In order to eliminate these drawbacks, this invention insulates the metal wire that operates as a mode filter in a DC manner, and also insulates the ground conductor (+ob) of the fin line from the housing (1b) using another dielectric. The diode is designed to be able to apply an external bias to the diode, and will be explained in detail with reference to the drawings below.

第3図は、この発明によるフィンライン平衡ミキサの一
例を示す図であシ、第4図は第3図のB−B’間の断面
を示している。図において、  (14a)〜(+4d
)は、金属ワイヤを地導体(6a) (6b)から絶縁
するだめのチップキャパシタ、05)は鋸歯状チョーク
、  (16a) 〜(16c)はチップキャパシタ、
[]−71は地導体(6b)を絶縁するだめの誘電体で
ある。金属ワイヤ(Illはチップキャパシタ(141
を介して地導体(6a)と地導体(6b)との間を接続
しているので、信号周波数およびローカル周波数におい
ては、キャパシタのりアクタンスは小さく金属ワイヤと
同じモードフィルタの動作をし、かつ地導体(6a)と
地導体(6b)とを絶縁している。従って第3図、第4
図において、地導体(6b)が誘電体o71によって筐
体(1b)からDC的に絶縁され、かつ、コプレナ線路
の中央導体f231がキャパシタ(16d)により外部
回路からDo的に絶縁されているので、ダイオード(+
Oa)。
FIG. 3 is a diagram showing an example of a finline balanced mixer according to the present invention, and FIG. 4 is a cross-sectional view taken along line BB' in FIG. In the figure, (14a) to (+4d
) are chip capacitors for insulating metal wires from ground conductors (6a) (6b), 05) are sawtooth chokes, (16a) to (16c) are chip capacitors,
[]-71 is a dielectric material for insulating the ground conductor (6b). Metal wire (Ill is a chip capacitor (141)
Since the ground conductor (6a) and the ground conductor (6b) are connected through the The conductor (6a) and the ground conductor (6b) are insulated. Therefore, Figures 3 and 4
In the figure, the ground conductor (6b) is DC-insulated from the housing (1b) by the dielectric o71, and the central conductor f231 of the coplanar line is Do-insulated from the external circuit by the capacitor (16d). , diode (+
Oa).

(1ob) Kはバイアス端子(2oa) (2ob)
より外部バイアスを加えることができる。以下各部の動
作説明を行なう。
(1ob) K is bias terminal (2oa) (2ob)
More external bias can be added. The operation of each part will be explained below.

鋸歯状チョークαSは誘電体07+によって絶縁されて
いる地導体(6b)を信号周波数および局部発掘周波数
において9等価的に短絡させるためのものである。チッ
プキャパシタ(16a)(16b)(16c)、接地バ
ターy (1aa) (tab) (tac)および接
地用導体(19a)(+9b) (1qc)は中間周波
数において地導体(6b)を等何曲に短絡させるための
ものである。バイアス端子(2oa)は導体線(22a
)によシ地導体(6に+)[DC的に接続している。バ
イアス端子(20b)は導体線(22b) 、および中
間周波数の電力を阻止するためのインダクタf2+1を
介してコプレナ線路の中央導体(ハ)にDC的に接続し
ている。従ってダイオード(10a)には筐体(1b)
とバイアス端子(22b)との間に電圧を加えることに
より、外部バイアスがかけられ、ダイオード(10b)
には、バイアス端子(22a)とバイアス端子(22b
)との間に電圧を加えることにより、外部バイアスがか
けられる。
The serrated choke αS is for short-circuiting the ground conductor (6b), which is insulated by the dielectric 07+, 9 equivalently at the signal frequency and the local excavation frequency. The chip capacitors (16a) (16b) (16c), the ground butter y (1aa) (tab) (tac) and the ground conductor (19a) (+9b) (1qc) are connected to the ground conductor (6b) at an intermediate frequency. This is to short-circuit the circuit. The bias terminal (2oa) is connected to the conductor wire (22a
) to the ground conductor (+ to 6) [DC-connected. The bias terminal (20b) is DC-connected to the center conductor (c) of the coplanar line via a conductor line (22b) and an inductor f2+1 for blocking intermediate frequency power. Therefore, the diode (10a) has a housing (1b).
An external bias is applied by applying a voltage between the bias terminal (22b) and the diode (10b).
has a bias terminal (22a) and a bias terminal (22b).
), an external bias is applied by applying a voltage between the

なお1以上は、地導体(6a)と地導体(6b)とを絶
縁しつつ、コプレナ線路上の偶モードを通し奇モードを
反射するためのモードフィルタを、チップキャパシタ(
14a)〜(14d)と金属ワイヤ(+1a) (1+
b)とで構成した例について述べたが、この発明はこれ
に限らず1例えば第5図に示すような形でモードフィル
タを構成してもよい。第6図は第5図の断面を示すもの
で0図において、 a41は金属ワイヤ。
In addition, at least one of the above uses a chip capacitor (
14a) to (14d) and metal wire (+1a) (1+
Although the example configured in b) has been described, the present invention is not limited to this, and the mode filter may be configured in the form shown in FIG. 5, for example. Fig. 6 shows a cross section of Fig. 5, and in Fig. 0, a41 is a metal wire.

(ハ)は基板の裏と表とを接続するための貫通導通孔。(C) is a through hole for connecting the back and front of the board.

轍は基板裏側のス) IJツブ導体である。The track is the IJ tab conductor on the back side of the board.

以上のようにこの発明に係るフィンライン平衡ミキサで
は、フィンラインおよびコブI/す線路を構成する地導
体の一部を、DC的に絶縁しているので、ミキサダイオ
ードに外部からDCバイアスを加えることができる利廃
がある。
As described above, in the finline balanced mixer according to the present invention, a part of the ground conductor constituting the finline and the Cobb I/S line is DC insulated, so that a DC bias is applied to the mixer diode from the outside. There are benefits and wastes that can be made.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来のフィンライン平衡ミキサの一例を示す図
、第2図は第1図に示す従来のフィンライン平衡ミキサ
の断面を示す図、第3図はこの発明によるフィンライン
平衡ミキサの一実施例を示す図、第4図は第3図に示す
この発明によるフィンライン平衡ミキサの断面を示す図
、第5図はこの発明の他の実施例の一部を示す図、第6
図は第5図の断面を示す図である。 図中*  (1a)(lb)は筐体、(3)は誘電体基
板、  (5a)(5b)はフィンライン、(8)はコ
プレナ線路、  (+oa)(1ob)はダイオード、
  (tea)〜(++c)は金属ワイヤ。 (14a) 〜(14b)はチップキャパシタ、  (
20a) (20b)はバイアス端子である。 なお図中同一あるいは相当部分には同一符号を付して示
しである。 代理人 葛 野 信 − 第1図 第2図 第3図
FIG. 1 is a diagram showing an example of a conventional finline balanced mixer, FIG. 2 is a cross-sectional view of the conventional finline balanced mixer shown in FIG. 1, and FIG. 3 is an example of a finline balanced mixer according to the present invention. 4 is a cross-sectional view of the finline balanced mixer according to the present invention shown in FIG. 3; FIG. 5 is a diagram showing a part of another embodiment of the present invention; FIG.
The figure is a cross-sectional view of FIG. 5. In the figure * (1a) (lb) is the case, (3) is the dielectric substrate, (5a) (5b) is the fin line, (8) is the coplanar line, (+oa) (1ob) is the diode,
(tea) to (++c) are metal wires. (14a) to (14b) are chip capacitors, (
20a) (20b) is a bias terminal. In the drawings, the same or corresponding parts are designated by the same reference numerals. Agent Shin Kuzuno - Figure 1 Figure 2 Figure 3

Claims (1)

【特許請求の範囲】[Claims] フィンラインとコプレナ線路との接合部近傍のコプレナ
線路上に2個あるいは所定数のダイオードがマウントさ
れるフィンライン平衝ミキサにおイテ、フィンラインお
よびコプレナ線路を形成する地導体の一部を絶縁し、上
記絶縁した地導体を介して、ダイオードに外部から直流
電圧を加えるようにしたことを特徴とす払フィンライン
lミキサ。
A finline balanced mixer has two or a predetermined number of diodes mounted on the coplanar line near the joint between the finline and the coplanar line, and insulates a part of the ground conductor forming the finline and coplanar line. A fin line mixer characterized in that a direct current voltage is applied to the diode from the outside via the insulated ground conductor.
JP19431682A 1982-11-05 1982-11-05 Fin line balanced mixer Pending JPS5983406A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19431682A JPS5983406A (en) 1982-11-05 1982-11-05 Fin line balanced mixer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19431682A JPS5983406A (en) 1982-11-05 1982-11-05 Fin line balanced mixer

Publications (1)

Publication Number Publication Date
JPS5983406A true JPS5983406A (en) 1984-05-14

Family

ID=16322569

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19431682A Pending JPS5983406A (en) 1982-11-05 1982-11-05 Fin line balanced mixer

Country Status (1)

Country Link
JP (1) JPS5983406A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01503829A (en) * 1987-05-07 1989-12-21 マーチン・マリエッタ・コーポレーション Rat race mixer for suspended strip line with simplified intermediate frequency extraction device
JP2008054073A (en) * 2006-08-25 2008-03-06 Toko Inc Transmission mode conversion structure
CN108134168A (en) * 2017-12-21 2018-06-08 四川众为创通科技有限公司 A kind of Terahertz triple-frequency harmonics frequency mixer based on fin line structure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01503829A (en) * 1987-05-07 1989-12-21 マーチン・マリエッタ・コーポレーション Rat race mixer for suspended strip line with simplified intermediate frequency extraction device
JP2008054073A (en) * 2006-08-25 2008-03-06 Toko Inc Transmission mode conversion structure
JP4542531B2 (en) * 2006-08-25 2010-09-15 東光株式会社 Transmission mode conversion structure
CN108134168A (en) * 2017-12-21 2018-06-08 四川众为创通科技有限公司 A kind of Terahertz triple-frequency harmonics frequency mixer based on fin line structure
CN108134168B (en) * 2017-12-21 2020-03-24 四川众为创通科技有限公司 Terahertz third harmonic mixer based on fin line structure

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