For Full-Text PDF, please login, if you are a member of IEICE,|
or go to Pay Per View on menu list, if you are a nonmember of IEICE.
An Analog Controlled Variable Gain LNA with Tunable Frequency Bands
Yuna SHIM Sang-Gug LEE
IEICE TRANSACTIONS on Electronics
Publication Date: 2011/07/01
Online ISSN: 1745-1353
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Electronic Circuits
analog control, LNA, low supply voltage, wideband,
Full Text: PDF>>
An analog controlled Variable Gain LNA (VGLNA) with tunable operating frequency bands is reported. The analog control circuit for the continuous gain variation is proposed as a low voltage version. The fabricated LNA based on 0.18 µm CMOS shows a gain range of 15-12 dB (27 dB gain control), a noise figure (NF) of 2 dB, and an IIP3 of -10 dBm while 5 mA is drawn from a 1.2 V supply over the frequency range of 470880 MHz.