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3ߝ10 GHz ultra-wideband low-noise amplifier with new matching technique

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4 Author(s)
Liang, C.-P. ; Dept. of Commun. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan ; Huang, C.-W. ; Lin, Y.-K. ; Chung, S.-J.

A low-power and low-noise amplifier with a new input matching technique using 0.18 μm CMOS technology for ultra-wideband applications is presented. A proposed broadband input match can be acquired easily by selecting an appropriate width of the transistor, which will effectively avoid the usage of the low-Q on-chip inductors in the input network. Moreover, demonstrated is the feasibility of the inter-stage resonator to accomplish bandwidth enhancement without additional power consumption. The IC prototype achieves good performances such as a power gain of 16.2 dB, a better than 10 dB input return loss, and 2.3 dB minimum noise figure while consuming a DC core power of only 6.8 mW.

Published in:

Electronics Letters  (Volume:46 ,  Issue: 16 )

Date of Publication:

August 5 2010

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