Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on the Design of the Low Noise Amplifier for 2.4GHz wireless LAN using LICC Passive Components

LTCC 적층소자를 이용한 2.4GHz 무선랜 대역 LNA의 설계에 관한 연구

  • Oh, Jae-Wook (School of Electronic and Electrical Engineering, Chung-Ang University) ;
  • Kim, Hyeong-Seok (School of Electronic and Electrical Engineering, Chung-Ang University) ;
  • Chung, Tae-Kyung (School of Electronic and Electrical Engineering, Chung-Ang University)
  • 오재욱 (중앙대학교 전자전기공학부) ;
  • 김형석 (중앙대학교 전자전기공학부) ;
  • 정태경 (중앙대학교 전자전기공학부)
  • Published : 2006.07.12
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Abstract

In this paper, a small size, $7{\times}6\;mm^2$, Low Noise Amplifier(LNA) using LTCC process was fabricated with multi-layer structure for 2.4GHz wireless LAN. The measured results demonstrate that the bandwidth is 130 MHz, and the operating frequency is from 2.39GHz to 2.52GHz. The power gain is above 7.3 dB in the operating frequency range and the gain flatness is 0.5 dB. The maximum S11 is -4 dB and the maximum S22 is -7.5 dB. The noise figure is less than 1.83 dB. The measured power gain, S11 and S22 were had poorer performance than the simulation results. The reason for this discrepancy is that the input and output matching was not performed exactly. However, the noise figure of the LTCC low noise amplifier is better than simulation result. It is found that it is possible to fabricate a LTCC low noise amplifier in a small size.

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