JPH03242007A - Oscillator - Google Patents
OscillatorInfo
- Publication number
- JPH03242007A JPH03242007A JP4009790A JP4009790A JPH03242007A JP H03242007 A JPH03242007 A JP H03242007A JP 4009790 A JP4009790 A JP 4009790A JP 4009790 A JP4009790 A JP 4009790A JP H03242007 A JPH03242007 A JP H03242007A
- Authority
- JP
- Japan
- Prior art keywords
- oscillating frequency
- cutting
- slit
- strip
- oscillator
- 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
Links
- 230000010355 oscillation Effects 0.000 claims abstract description 18
- 239000000758 substrate Substances 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 abstract description 2
- 238000010168 coupling process Methods 0.000 abstract description 2
- 238000005859 coupling reaction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、発振器に関し、特にマイクロ波帯の１／２波
長共振器を有する帰還型発振器の発振周波数を容易に微
調整できる発振器に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an oscillator, and more particularly to an oscillator that can easily finely adjust the oscillation frequency of a feedback oscillator having a half-wavelength resonator in the microwave band.
従来、この種の発振器はストリップラインの長さを変化
させて発振周波数を微調整していた。Conventionally, in this type of oscillator, the oscillation frequency was finely adjusted by changing the length of the strip line.
上述した従来の発振器はストリップラインの長さを変化
させて発振周波数を微調整する構成となっているので、
ストリップラインのパターンをはんだ付けしなければな
らないという欠点がある。The conventional oscillator mentioned above is configured to finely adjust the oscillation frequency by changing the length of the strip line.
The disadvantage is that the stripline pattern must be soldered.
本発明の発振器はトランジスタのコレクタおよびベース
に誘電体基板上に形成された２つのストリップラインの
一端をそれぞれ固定し、他端をストリップライン型１／
２波長共振器と磁界結合あるいは電界結合させた発振器
において、前記２つのストリップラインの少なくとも一
つに複数のスリットを電磁波の進行方向と平行にくし状
に設け、その複数のスリットにより形成されたパターン
を切断して発振周波数を調整する。In the oscillator of the present invention, one end of two strip lines formed on a dielectric substrate is fixed to the collector and base of the transistor, and the other end is fixed to the collector and base of the transistor.
In an oscillator that is magnetically coupled or electrically coupled to a two-wavelength resonator, a plurality of slits are provided in at least one of the two strip lines in a comb shape parallel to the traveling direction of electromagnetic waves, and a pattern is formed by the plurality of slits. Cut the oscillation frequency to adjust the oscillation frequency.
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は本発明の一実施例の回路図である。第１図の実
施例は発振用のトランジスタ１、誘電体基板上に構成さ
れたストリップライン２．３、λ／２共振器４、λ／２
共振器４との結合コンデンサ５，６、コンデンサ７、抵
抗８、および発振周波数微調整用のくし状スリット９か
ら構成される。FIG. 1 is a circuit diagram of an embodiment of the present invention. The embodiment shown in FIG. 1 includes an oscillation transistor 1, a strip line 2.3 constructed on a dielectric substrate, a λ/2 resonator 4,
It is composed of coupling capacitors 5 and 6 with the resonator 4, a capacitor 7, a resistor 8, and a comb-shaped slit 9 for finely adjusting the oscillation frequency.
ここで、発振周波数はストリップライン３中に設けた電
磁波の進行方向と平行にあけられたくし状スリット９に
より分断されてできた細い数本のパターンを切断するこ
とにより変化する。すなわち、第２図の一点鎖線部内の
くし状スリット９の拡大図に示すように、破線部Ａ、Ｂ
を切断することにより発振周波数を変化させることがで
きる。ここで、切断するパターンの本数により、発振周
波数をステップ状に細かく変化させることができる。Here, the oscillation frequency is changed by cutting several thin patterns separated by comb-shaped slits 9 provided in the strip line 3 and parallel to the direction of propagation of electromagnetic waves. That is, as shown in the enlarged view of the comb-shaped slit 9 in the dashed-dotted line in FIG.
By cutting the oscillation frequency, the oscillation frequency can be changed. Here, the oscillation frequency can be changed finely in steps depending on the number of patterns to be cut.
本実施例のくし状スリットのパタンの切断数を変えた場
合の特性を第３図の特性図に示す。この特性は４．７
Ｇ ＨＺ帯で発振器を作り、くし状の細いパターンを切
断した場合に発振周波数がほぼ１ＯＭＨｚステップで変
化する特性を示している。The characteristic diagram in FIG. 3 shows the characteristics when the number of cuts in the comb-like slit pattern of this embodiment is changed. This characteristic is 4.7
When an oscillator is made in the GHz band and a thin comb-like pattern is cut, the oscillation frequency changes in approximately 10MHz steps.
以上説明したように本発明は発振トランジスタとλ／２
共振器との間のストリップライン中にくし状スリットを
設け、そのスリットにより分断されてできた数本の細い
パターンを切断することにより、発振周波数の微調整が
可能となる。したがって発振周波数の微調整が極めて簡
単となり従来例のようにストリップラインをはんだ付け
することなく所望の発振周波数が得られる効果がある。As explained above, the present invention has an oscillation transistor and a λ/2
By providing comb-shaped slits in the strip line between the resonator and cutting several thin patterns separated by the slits, fine adjustment of the oscillation frequency becomes possible. Therefore, fine adjustment of the oscillation frequency is extremely easy, and a desired oscillation frequency can be obtained without soldering strip lines as in the conventional example.
第１図は本発明の一実８１例の回路図、第２図は本実施
例の要部の拡大図、第３図は本実施例を適用した発振器
の特性図である。
１・・・トランジスタ、２．３・・・ストリップライン
、４・・・１／２λ共振器、５，６．７・・・コンデン
サ、８・・・抵抗、９・・・くし状スリット。FIG. 1 is a circuit diagram of an example 81 of the present invention, FIG. 2 is an enlarged view of the main part of this embodiment, and FIG. 3 is a characteristic diagram of an oscillator to which this embodiment is applied. 1... Transistor, 2.3... Strip line, 4... 1/2λ resonator, 5, 6.7... Capacitor, 8... Resistor, 9... Comb-shaped slit.
Claims (1)
形成された２つのストリップラインの一端をそれぞれ固
定し、他端をストリップライン型１／２波長共振器と磁
界結合あるいは電界結合させた発振器において、前記２
つのストリップラインの少なくとも一つに複数のスリッ
トを電磁波の進行方向と平行にくし状に設け、その複数
のスリットにより形成されたパターンを切断して発振周
波数を調整することを特徴とする発振器。In the oscillator, one end of two strip lines formed on a dielectric substrate is fixed to the collector and base of the transistor, and the other end is magnetically or electrically coupled to a strip line type 1/2 wavelength resonator.
An oscillator characterized in that a plurality of slits are provided in at least one of the two strip lines in a comb shape parallel to the traveling direction of electromagnetic waves, and the oscillation frequency is adjusted by cutting the pattern formed by the plurality of slits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4009790A JPH03242007A (en) | 1990-02-20 | 1990-02-20 | Oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4009790A JPH03242007A (en) | 1990-02-20 | 1990-02-20 | Oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03242007A true JPH03242007A (en) | 1991-10-29 |
Family
ID=12571369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4009790A Pending JPH03242007A (en) | 1990-02-20 | 1990-02-20 | Oscillator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03242007A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0938185A1 (en) * | 1998-02-18 | 1999-08-25 | TDK Corporation | Voltage-controlled oscillator and method for adjusting frequency shift amount thereof |
| KR20140117506A (en) | 2012-02-15 | 2014-10-07 | 닛폰 스틸 앤드 스미킨 스테인레스 스틸 코포레이션 | Ferrite-based stainless steel plate having excellent resistance against scale peeling, and method for manufacturing same |
-
1990
- 1990-02-20 JP JP4009790A patent/JPH03242007A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0938185A1 (en) * | 1998-02-18 | 1999-08-25 | TDK Corporation | Voltage-controlled oscillator and method for adjusting frequency shift amount thereof |
| KR20140117506A (en) | 2012-02-15 | 2014-10-07 | 닛폰 스틸 앤드 스미킨 스테인레스 스틸 코포레이션 | Ferrite-based stainless steel plate having excellent resistance against scale peeling, and method for manufacturing same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1826865B1 (en) | Tunable filter | |
| US4511860A (en) | Planar microwave oscillator mounted on a dielectric cavity | |
| US4321560A (en) | Oscillator using dielectric resonator | |
| KR890002967B1 (en) | Micro wave filter | |
| JPH0211163B2 (en) | ||
| JP2004112668A (en) | Resonator and filter | |
| JPH03242007A (en) | Oscillator | |
| JPH05206730A (en) | Voltage controlled oscillator and adjustment method of its oscillating frequency | |
| JPH0856107A (en) | Dual mode resonator | |
| JPH10284913A (en) | Microstrip resonator and microstrip filter constituted by using the microstrip resonator | |
| JPH04145707A (en) | Voltage controlled oscillator | |
| JPH04294616A (en) | Voltage controlled oscillator | |
| US5153533A (en) | Voltage controlled oscillator | |
| JPH11355009A (en) | Strip line resonator, strip line filter, strip line duplexer and communication equipment | |
| JP3213987B2 (en) | Dielectric resonator and method for adjusting characteristics thereof | |
| KR100309422B1 (en) | Oscillator | |
| US6144263A (en) | Voltage-controlled oscillator and method for adjusting frequency shift amount thereof | |
| US5859575A (en) | Dielectric filter | |
| JP3941350B2 (en) | Method for adjusting phase condition of oscillator and oscillator | |
| JPH0460362B2 (en) | ||
| JPH03145308A (en) | Oscillator | |
| JPS59121903U (en) | ultra high frequency filter | |
| JPS5830322Y2 (en) | Waveguide mixer using monolithic integrated circuits | |
| SU1626274A1 (en) | Tunable bandpass filter with magnetostatic waves | |
| JPH11330817A (en) | Dielectric resonator device, dielectric filter, oscillator and electronic equipment |