Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
권호 표지

40-㎓-band Low Noise Amplifier MMIC with Ultra Low Gain Flatness

  • Chang, Woo-Jin (Microwave Devices Team, Basic Research Lab., Electronics and Telecommunications Research Institute(ETRI)) ;
  • Lee, Jin-Hee (Microwave Devices Team, Basic Research Lab., Electronics and Telecommunications Research Institute(ETRI)) ;
  • Yoon, Hyung-Sup (Microwave Devices Team, Basic Research Lab., Electronics and Telecommunications Research Institute(ETRI)) ;
  • Shim, Jae-Yeob (Microwave Devices Team, Basic Research Lab., Electronics and Telecommunications Research Institute(ETRI)) ;
  • Lee, Kyung-Ho (Microwave Devices Team, Basic Research Lab., Electronics and Telecommunications Research Institute(ETRI))
  • Published : 2002.07.01
Download PDF
⟨ Previous Next ⟩

Abstract

This paper introduces the design and implementation of 40-㎓-band low noise amplifier (LNA) with ultra low gain flatness for wide-band wireless multimedia and satellite communication systems. The 40-㎓-band 4-stage LNA MMIC (Monolithic Microwave Integrated Circuit) demonstrates a small signal gain of more than 20 ㏈, an input return loss of 10.3 ㏈, and an output return loss of 16.3 ㏈ for 37$\square$42 ㎓. The gain flatness of the 40-㎓-band 4-stage LNA MMIC was 0.1 ㏈ for 37$\square$42 ㎓. The noise figure of the 40 ㎓-band LNA was simulated to be less than 2.7 dB for 37~42 ㎓. The chip size of the 4-stage LNA MMIC was 3.7${\times}$1.7 $\textrm{mm}^2$.

Keywords