Study of 2.4GHz CMOS LNA & mixer circuit for low power WPAN(IEEE 802.15.4) application = 저전력 WPAN(IEEE 802.15.4) 응용에 적합한 2.4GHz CMOS 저잡음 증폭기와 주파수 혼합기에대한 연구

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To implement low power communication system, not only each block``s power efficiency but also proper architecture is important. So proper RF system architecture and specification for RF and analog-baseband is studied. LNA and Mixer circuit for low power WPAN (IEEE 802.15.4) which is designed for low IF topology is fabricated and measured. To implement low power LNA and Mixer circuit switching operation is adopted. Total power consumption is 1.5mA at 1.8volt Vdd at 26dB voltage gain. Also Multiple Gated Transistor with Cascode configuration CMOS RF amplifier is proposed and measured. With proper combination of input transistors in parallel, $g_m``$ is effectively reduced, and with further improvement in nonlinearity due to combination of ,$u_m``$ and harmonic feedback by cascode configuration, we obtained IP3 improvement as large as 10dB at similar power consumption and gain.
Advisors
Lee, Kwy-Roresearcher이귀로researcher
Description
한국과학기술원 : 전기및전자공학전공,
Publisher
한국과학기술원
Issue Date
2002
Identifier
174080/325007 / 020003143
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 전기및전자공학전공, 2002.2, [ [ii], 75, [1] p. ]

Keywords

Mixer; LNA; WPAN; 2.4GHz; 주파수 혼합기; 저잡음 증폭기; 2.4GHz

URI
http://hdl.handle.net/10203/37550
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=174080&flag=dissertation
Appears in Collection
EE-Theses_Master(석사논문)
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