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Novel Wideband CMOS LNA with only an inductor as input matching network

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3 Author(s)
Zi Hao Hsiung ; Nat. Chiao Tung Univ., Hsinchu ; Hui-I Wu ; Jou, C.F.

A 3-8 GHz wide-band low noise amplifier with novel input matching mechanism is presented in this letter. The proposed circuit uses transistor's intrinsic capacitor Cgd and only one inductor as input matching network to achieve a measured -10 dB input reflection coefficient from 2.75 GHz to 12 GHz. The fabricated wideband LNA achieves a measured average power gain (S21) of about 10 dB and noise figure of 3.64-5.5 dB from 2.75 to 7.5 GHz.

Published in:

TENCON 2007 - 2007 IEEE Region 10 Conference

Date of Conference:

Oct. 30 2007-Nov. 2 2007