A Wide-gain-range Intermediate Frequency Integrated Circuit for a Superheterodyne Receiver
- 주제(키워드) Intermediate frequency , superheterodyne , attenuator , VGA , mixer
- 주제(기타) Engineering, Electrical & Electronic; Physics, Applied
- 설명문(일반) [Zhang, Changchun; Zhang, Jingjian; Zhang, Ying; Zhang, Yi] Nanjing Univ Posts & Telecommun, Coll Elect & Opt Engn, Nanjing 210023, Jiangsu, Peoples R China; [Zhang, Changchun] State Key Lab Millimeter Waves, Nanjing 210096, Jiangsu, Peoples R China; [Liu, Jie] Inst Beijing Electromech Engn, Beijing 100074, Peoples R China; [Park, Sung Min] Ewha Womans Univ, Dept Elect Engn, Seoul 03760, South Korea
- 등재 SCIE, SCOPUS, KCI등재
- 발행기관 IEEK PUBLICATION CENTER
- 발행년도 2018
- URI http://www.dcollection.net/handler/ewha/000000156083
- 본문언어 영어
- Published As http://dx.doi.org/10.5573/JSTS.2018.18.4.525
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
A wide-gain-range Intermediate Frequency (IF) integrated circuit is designed and implemented for a superheterodyne receiver in standard 0.18 mu m CMOS technology. It consists mainly of a programmable attenuator, a Variable Gain Amplifier (VGA), a downconverting mixer and a fixed gain amplifier. The n-type-network attenuator is chosen over a pi-type network one in order for a compact layout. The common-gate-input VGA is used for a high operation frequency, a small phase shift and a wide gain range. The common-gate Gilbert-type mixer with a dynamic current injection technique and a capacitive cross-coupling technique is employed for proper gain, low noise and high linearity. Furthermore, a Phase-Locked Loop (PLL) is also integrated monolithically so as to generate the desired local clock signal for the mixer. Measurement results show that, from an area of 2.16 mmx1.46 mm and power consumption of 234 mW, the IF chip is able to operate properly with a gain range of 5 dB similar to 57 dB, output power of above 0dBm, and so on. In addition, the on-chip local clock with an operation frequency of 660 MHz and a phase noise of -119.34 dBc @1 MHz is achieved.
more