0.18μm NMOS 캐스코드 전류원 구조의 2.4GHz 콜피츠 전압제어발진기 설계 및 제작
A Design and Fabrication of a 0.18μm CMOS Colpitts Type Voltage Controlled Oscillator with a Cascode Current Source
김종범(Skycross Korea); 유정호(전주대학교); 최혁산(전주대학교); 황인갑(전주대학교)
59권 12호, 2273~2277쪽
초록
In this paper a 2.4GHz CMOS colpitts type microwave oscillator was designed and fabricated using H-spice and Cadence Spetre. There are 140MHz difference between the oscillation frequency and the resonance frequency of a tank circuit of the designed oscillator. The difference is seemed to be due to the parasitic component of the transistor. The inductors used in this design are the spiral inductors proposed in other papers. Cascode current source was used as a bias circuit of a oscillator and the output transistor of the current source is used as the oscillation transistor. A common drain buffer amplifier was used at the output of the oscillator. The measured oscillation frequency and output power of the oscillator are 2.173GHz and -5.53dBm.
Abstract
In this paper a 2.4GHz CMOS colpitts type microwave oscillator was designed and fabricated using H-spice and Cadence Spetre. There are 140MHz difference between the oscillation frequency and the resonance frequency of a tank circuit of the designed oscillator. The difference is seemed to be due to the parasitic component of the transistor. The inductors used in this design are the spiral inductors proposed in other papers. Cascode current source was used as a bias circuit of a oscillator and the output transistor of the current source is used as the oscillation transistor. A common drain buffer amplifier was used at the output of the oscillator. The measured oscillation frequency and output power of the oscillator are 2.173GHz and -5.53dBm.
- 발행기관:
- 대한전기학회
- 분류:
- 전기공학