KR870003012Y1 - Micro stipe-type oscillator - Google Patents
Micro stipe-type oscillator Download PDFInfo
- Publication number
- KR870003012Y1 KR870003012Y1 KR2019840014727U KR840014727U KR870003012Y1 KR 870003012 Y1 KR870003012 Y1 KR 870003012Y1 KR 2019840014727 U KR2019840014727 U KR 2019840014727U KR 840014727 U KR840014727 U KR 840014727U KR 870003012 Y1 KR870003012 Y1 KR 870003012Y1
- Authority
- KR
- South Korea
- Prior art keywords
- oscillation
- capacitor
- micro
- circuit
- line
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/18—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance
- H03B5/1841—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a strip line resonator
- H03B5/1847—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising distributed inductance and capacitance the frequency-determining element being a strip line resonator the active element in the amplifier being a semiconductor device
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
- H03B2201/02—Varying the frequency of the oscillations by electronic means
- H03B2201/0208—Varying the frequency of the oscillations by electronic means the means being an element with a variable capacitance, e.g. capacitance diode
Landscapes
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
내용 없음.No content.
Description
제1도는 종래의 UHF 튜너발진회로도.1 is a conventional UHF tuner oscillation circuit diagram.
제2도는 본 고안의 마이크로 스트립형 발진회로도.2 is a microstrip oscillation circuit diagram of the present invention.
* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings
10 : 발진부 50 : 공진회로부10: oscillator 50: resonant circuit
51, 52, 53 : 유도용선로 D1, D2: 가변용량다이오드51, 52, 53: induction furnace D 1 , D 2 : variable capacitance diode
C1, C2: 콘덴서 Q1: 발진용 트랜지스터C 1 , C 2 : capacitor Q 1 : oscillation transistor
본 고안은 광대역의 마이크로 웨이브 주파수 발진회로에 관한 것으로, 특히 가변용량(Varactor) 다이오드를 이용한 전압동조회로를 사용하여 광대역의 안정된 주파수를 출력할 수 있게 한 마이크로 스트립형 발진회로에 관한 것이다.The present invention relates to a wideband microwave frequency oscillator circuit, and more particularly, to a microstrip oscillator circuit capable of outputting a stable frequency of a wideband using a voltage tuning circuit using a variable capacitor diode.
종래의 UHF(300∼1000MHz) 대역에 적용되는 튜너의 발진회로는 제1도에 도시한 바와 같이 콜피츠 발진회로로 구성된 것으로 1은 공진선로이고, 2는 발진부로서 발진용 트랜지스터(Q11) 및 바이아스전압공급용저항(R11-R13), 직류전원차단용콘덴서(C11), 전원공급용초크코일(L11)로 구성된다. 그리고 3은 출력선로인 마이크로 스트립 선로이고, Cv는 주파수 변환용 바리콘이다.An oscillator circuit of the tuner is applied to a conventional UHF (300~1000MHz) band, to consist of the Colpitts oscillation circuit as shown in Figure 1 is the first resonance line, and 2 is the oscillation transistor (Q 11) and an oscillation part for It consists of a bias voltage supply resistor (R 11- R 13 ), a DC power cut-off capacitor (C 11 ), and a power supply choke coil (L 11 ). 3 is a microstrip line as an output line, and C v is a barricon for frequency conversion.
이 종래의 회로는 입·출력 사이에 존재하는 트랜지스터(Q11)의 부유용량에 의해 발진이 된다. 여기서, 발진주파수는 공진선로(1)의 특성 임피던스 Z0및 선로 길이 l와 바리콘(3)의 용량을 포함한 전 공진용량 CT와의 관계에 의해 하기의 식과 같이 표시된다.This conventional circuit is oscillated by the stray capacitance of the transistor Q 11 existing between input and output. Here, the oscillation frequency is expressed by the following equation by the relation between the characteristic impedance Z 0 of the resonant line 1 and the line length l and the total resonant capacitance C T including the capacitance of the barricon 3.
이 식에서은 전송선로이론으로 부터보다 짧고, 끝단이 단락된 선로인 경우에는 유도량으로 나타난다. 이와 같이 유기된 발진 주파수는 마이크로 스트립선로(3)를 통하여 출력시키게 된다.In this expression From the transmission line theory Shorter, shorter ends are shown as guided quantities. The induced oscillation frequency is output through the micro strip line 3.
그러나, 이러한 종래의 회로에 있어서는 2GHz 이상의 마이크로 웨이브 대역에 사용할 경우 바리콘(Cv)을 사용하는 데 따른 부유용량 영향으로 안정된 발진 주파수를 얻을수가 없게 되고, 또 바리콘(Cv)을 사용하는데 따른 기계적인 튜닝이 어렵게 되는 결점이 있었다.However, those in the conventional circuit, if used in a microwave band or more 2GHz barikon (C v) a is not a get a stable oscillation frequency by the stray capacitance effects of using, again the machine according to use barikon (C v) There was a flaw that the normal tuning became difficult.
본 고안은 이러한 종래의 결점을 해결하기 위하여 가변 용량 다이오드를 사용하여 공진부를 구성하고, 그 공진부를 동조 중심주파수에 거의되도록 형성하여 광대역에 걸쳐 안정된 발진 주파수를 출력할 수 있게 안출한 것으로 이를 첨부된 도면을 참조하여 상세히 설명하면 다음과 같다.The present invention constructs a resonator using a variable capacitance diode to solve this conventional drawback, and the resonator is almost at the tuning center frequency. Formed so as to be able to output a stable oscillation frequency over a broadband described in detail with reference to the accompanying drawings as follows.
제2도는 본 고안의 마이크로 스트립형 발진회로도로서 이에 도시한 바와 같이, 저항(R1-R3) 및 코일(L2, L3), 다이오드(D3), 발진용 트랜지스터(Q1)로 구성된 발진부(10)의 트랜지스터(Q1) 콜렉터를 마이크로 스트립선로(30) 및 직류전원차단용 용량소자인 콘덴서(C2)를 통하여 접지(40)에 연결하여 RF적으로 단락시키면서 발진용 트랜지스터(Q1) 에 바이아스 전압을 인가할 수 있도록 하고, 또, 상기 트랜지스터(Q1)의 베이스를 직류차단 및 교류결합용 콘덴서(C1)를 통하여 유도용선로(51, 52, 53) 및 가변용량 다이오드(D1, D2)로 구성된 공진회로부(50)에 연결하고, 그 공진회로부(50)의 유도용선로(52)에 튜닝전압(VT)이 동조코일(L1)을 통하여 공급되게 연결한다.2 is a microstrip oscillation circuit diagram of the present invention, as shown here, with resistors (R 1- R 3 ) and coils (L 2 , L 3 ), diode (D 3 ), oscillation transistor (Q 1 ). An oscillating transistor is connected to the ground 40 through a microstrip line 30 and a capacitor C 2 , which is a capacitance element for blocking DC power, and RF-short-circuited by the transistor Q 1 of the configured oscillator 10. so that the Q 1) to apply a bias voltage, and further, the transistor (the base of Q 1) to a DC blocking and AC coupling induced hot metal through the capacitor (C 1) for 51, 52 and 53 and the variable It is connected to the resonant circuit section 50 composed of the capacitor diodes D 1 and D 2 , and the tuning voltage V T is supplied to the induction line 52 of the resonant circuit section 50 through the tuning coil L 1 . Connect it.
도면의 설명 중 미설명부호 20은 동조 중심주파수의의 파장을 가지는 스트립선로이고, OUT는 발진출력단자이다.In the description of the drawings, reference numeral 20 denotes a tuning center frequency. The strip line has the wavelength of, and OUT is the oscillation output terminal.
이와 같이 구성된 본 고안의 작용효과를 상세히 설명하면 다음과 같다.Referring to the effect of the present invention configured in this way in detail as follows.
일반적으로 전송선로 이론에서보다 작은 선로는 등가적으로 인덕턴스의 역할을 수행하게 되므로 공진회로부(50)의 유도용선로(51), (52), (53), 등가적으로 인덕턴스로 나타나고, 또 가변용량 다이오드(D1), (D2)는 등가적으로 캐패시턴스로 나타나므로 공진회로부(50)는 직렬공진회로로 동작된다.Generally in transmission line theory Since the smaller line is equivalently inductance, the induction lines 51, 52, 53 of the resonant circuit unit 50 are equivalently represented as inductance, and the variable capacitance diode D 1 (D 2 ) is equivalently represented by capacitance, so the resonant circuit unit 50 operates as a series resonant circuit.
따라서, 발진부(10)의 인덕턴스값과 콘덴서(C2)의 캐패시턴스값에 의해 발진이 수행될 때 그 발진 주파수는 공진회로부(50)에 의해 결정된다. 즉, 공진회로부(50)의 유도용선로(51), (52), (53)의 인덕턴스를 L로 가정하고, 가변용량 다이오드(D1), (D2)의 캐패시턴스를 C로 가정했을 때 발진주파수는 2π로 된다.Therefore, when oscillation is performed by the inductance value of the oscillator 10 and the capacitance value of the capacitor C 2 , the oscillation frequency is determined by the resonance circuit unit 50. That is, when the inductances of the induction lines 51, 52, and 53 of the resonant circuit unit 50 are assumed to be L, and the capacitances of the variable capacitance diodes D 1 and D 2 are assumed to be C, respectively. Oscillation frequency is 2π It becomes
이와 같이 동작되는 공진회로부(50)의 주위에 동조시키려는 중심주파수의 약의 파장을 가지는 마이크로 스트립선로(20)가 위치되므로 출력단자(OUT)에 발진신호가 출력된다.About the center frequency to be tuned around the resonant circuit section 50 operated in this way Since the microstrip line 20 having the wavelength is positioned, the oscillation signal is output to the output terminal OUT.
그리고, 튜닝전압(VT)이 동조코일(L1)을 통하여 공진회로부(50)의 유도용선로(52)에 공급되므로 발진주파수가 손실되지 않게 되고, 또 발진부(10)가 마이크로 스트립선로(30)를 콘덴서(C2)에 결합되므로 발진신호의 출력이 최대로 된다.Further, since the tuning voltage V T is supplied to the induction line 52 of the resonance circuit unit 50 through the tuning coil L 1 , the oscillation frequency is not lost, and the oscillation unit 10 is a microstrip line ( 30) is coupled to the capacitor C 2 so that the output of the oscillation signal is maximized.
이상에서와 같이 동작되는 본 고안은 발진부 및 공진회로부가 마이크로 웨이브 대역에서 마이크로 스트립으로 구현되므로 회로가 간단해지고 소형화될 뿐 아니라, 부유용량의 영향을 줄일 수 있게 되고, 가변용량 다이오드를 사용하여 공진회로부를 구성하므로 바리콘의 조정에 의한 기계적 튜닝의 어려움과 영향을 최소로 줄일 수 있게 되어 광대역에 걸쳐 안정된 발진 주파수를 얻을 수 있게 된다.The present invention, which operates as described above, is realized by the microstrip in the microwave band and the oscillator and the resonant circuit, which not only simplifies and miniaturizes the circuit, but also reduces the effects of stray capacitance, and uses a variable capacitance diode to resonate the circuit. By configuring the unit, it is possible to minimize the difficulty and influence of mechanical tuning due to the adjustment of the variicon to obtain a stable oscillation frequency over a wide bandwidth.
따라서, 본 고안은 마이크로 웨이브 대역에서 광대역의 안정된 발진주파수를 요구하는 위성방송수신 시스템의 국부발진기에 효과적으로 적용할 수 있으며 또 소형제작이 가능하므로 외부에 설치되는 다운 컨버터의 설계 및 제작을 용이하게 해 줄 수 있게 된다.Therefore, the present invention can be effectively applied to the local oscillator of the satellite broadcasting receiving system which requires the stable oscillation frequency of the broadband in the microwave band, and also the small size is possible to facilitate the design and manufacture of the down converter installed outside. I can give it.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019840014727U KR870003012Y1 (en) | 1984-12-31 | 1984-12-31 | Micro stipe-type oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR2019840014727U KR870003012Y1 (en) | 1984-12-31 | 1984-12-31 | Micro stipe-type oscillator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR860008921U KR860008921U (en) | 1986-07-31 |
| KR870003012Y1 true KR870003012Y1 (en) | 1987-09-09 |
Family
ID=70163366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR2019840014727U KR870003012Y1 (en) | 1984-12-31 | 1984-12-31 | Micro stipe-type oscillator |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR870003012Y1 (en) |
-
1984
- 1984-12-31 KR KR2019840014727U patent/KR870003012Y1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR860008921U (en) | 1986-07-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4749963A (en) | Oscillator having stripline loop resonator | |
| US3899758A (en) | Variable inductive resonant circuit arrangement having a diamagnetic core for the UHF range | |
| US4783638A (en) | Frequency doubling oscillator working at ultra-high frequencies | |
| US6580331B2 (en) | Voltage controlled oscillator for oscillating signals with high C/N ratio | |
| US4146850A (en) | Tunable uhf oscillator with harmonic limitation | |
| US4630004A (en) | Dielectric resonator stabilized microstrip oscillator | |
| KR870003012Y1 (en) | Micro stipe-type oscillator | |
| JP2580116B2 (en) | IC integrated high frequency variable frequency oscillation circuit | |
| EP1098432B1 (en) | Frequency-switching oscillator and electronic device using the same | |
| US5204641A (en) | Conducting plane resonator stabilized oscillator | |
| EP0247749A2 (en) | Push-push dielectric resonator oscillator | |
| US6172577B1 (en) | Oscillator and oscillation apparatus using the oscillator | |
| KR100638642B1 (en) | Dielectric resonator device using coupled microstrip line | |
| KR100285307B1 (en) | Voltage controlled oscillator device using coaxial resonator | |
| KR890007341Y1 (en) | High output local oscillator for satellite tv receive | |
| KR950002960B1 (en) | Microwave oscillator | |
| KR900002652Y1 (en) | High frequency oscillator | |
| KR100315943B1 (en) | Oscillation circuit | |
| KR910001371B1 (en) | Multi-band oscillator circuit | |
| US6285268B1 (en) | Coupling network and method for widening the varactor diode tuning band of microstrip dielectric resonators | |
| KR940001623Y1 (en) | Input circuit for uhf tuner | |
| JPH0321051Y2 (en) | ||
| KR900010618Y1 (en) | Local oscillator output stabilizing circuit of electronic tuner | |
| KR910001427Y1 (en) | Oscillating circuit | |
| JP2000151275A (en) | Voltage controlled oscillator and electronic equipment using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A201 | Request for examination | ||
| E902 | Notification of reason for refusal | ||
| E701 | Decision to grant or registration of patent right | ||
| REGI | Registration of establishment | ||
| FPAY | Annual fee payment |
Payment date: 19971229 Year of fee payment: 12 |
|
| LAPS | Lapse due to unpaid annual fee |