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Ultra-wideband low noise amplifier using a cascode feedback topology
- Issue Date
- Jan-2006
- Publisher
- IEEE
- Keywords
- Broadband; Cascode; CMOS; Low noise amplifier; Shunt feedback; Ultra-wideband (UWB)
- Citation
- 2006 Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems - Digest of Papers, v.2006, pp.202 - 205
- Indexed
- SCOPUS
- Journal Title
- 2006 Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems - Digest of Papers
- Volume
- 2006
- Start Page
- 202
- End Page
- 205
- ISSN
- 0000-0000
- Abstract
- An ultra-wideband (UWB) low noise amplifier (LNA) that consists of two cascode and shunt feedback stages is presented. Measurement results show the maximum power gain (52r) of 11.9 dB with the 3-dB band from 2 to 6.5 GHz and input/output reflection coefficient (S11, S22) of less than - 7.8 dB from 2 to 11 GHz. In addition, the fabricated LNA achieves the average noise figure (NF) of 4.5 dB from 2 to 10 GHz, which value is much lower than previously reported state-of-the-art UWB amplifiers. The input-referred third-order intercept point (IIP3) and the input-referred 1-dB compression point (IIP3) of the LNA are achieved as 4 dBm and -5 dBm, respectively, while consuming 27 mW in 0.18 μm RF CMOS process.
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Related Researcher
- Yun, Tae Yeoul
- COLLEGE OF ENGINEERING (SCHOOL OF ELECTRONIC ENGINEERING)