대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)
- 대한전기학회 2003년도 하계학술대회 논문집 C
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- Pages.1958-1960
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- 2003
새로운 DGS구조를 이용한 자기 발진 혼합기 설계
Design of A Self-Oscillating Mixer Using A Novel DGS
- 정명섭 (국민대학교 전자정보통신공학부) ;
- 김종옥 (국민대학교 전자정보통신공학부) ;
- 박준석 (국민대학교 전자정보통신공학부) ;
- 임재봉 (국민대학교 전자정보통신공학부) ;
- 김형석 (중앙대학교 전자전기공학부) ;
- 조홍구 (국민대학교 전자정보통신공학부)
- Joung, Myung-Sup (School of Electrical Engineering, Kookmin Univ.) ;
- Kim, Jong-Ok (School of Electrical Engineering, Kookmin Univ.) ;
- Park, Jun-Seok (School of Electrical Engineering, Kookmin Univ.) ;
- Lim, Jae-Bong (School of Electrical Engineering, Kookmin Univ.) ;
- Kim, Heong-Seok (School of Electrical and Electronics Engineering, Chung Ang Univ.) ;
- Cho, Hong-Goo (School of Electrical Engineering, Kookmin Univ.)
- 발행 : 2003.07.21
초록
Here we describe a unique self-oscillating mixer (SOM) design using a modified defected ground structure (DGS) for down-converter. Proposed SOM is consisted of self-oscillator, which can produce negative resistance and select resonance frequency, and input/output matching filter. As the advantage of this SOM can be reused by module that mix signals with transistor that is used to oscillator, it is simply and low-costly designed Also, there is easy advantage to be applied in RFIC/ MMIC technology because it offers excellent high Q value in spite of using micro-strip structure. Designed self-oscillating frequency is 1.04GHz and RF frequency established is 0.8GHz. It was achieved 20dB conversion loss and phase noise of -95dBc/Hz at 100KHz offset frequency over intermediate frequency (IF). The equivalent circuit parameters for DGS are extracted by using a three dimensional EM simulator and simple circuit analysis method.
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