Premium
Wideband LNA using series RLC input matching and resistive feedback
Author(s) -
Park Ji An,
Cho Choon Sik
Publication year - 2014
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28493
Subject(s) - rlc circuit , wideband , resistive touchscreen , electronic engineering , series (stratigraphy) , cmos , electrical engineering , equivalent circuit , amplifier , bandwidth (computing) , low noise amplifier , impedance matching , engineering , computer science , physics , telecommunications , electrical impedance , voltage , capacitor , paleontology , biology
A low‐noise amplifier (LNA) using series RLC matching network and resistive feedback working from 6.2 to 9.7 GHz is presented. An equivalent circuit model is deduced for obtaining input matching by conversion from parallel circuit to series RLC resonant circuit. Using this equivalent circuit, an LNA is designed without inductive degeneration. By exploiting the resistive feedback and series RLC input matching, fully integrated LNA in 0.11 µm CMOS process achieves S 21 of 8.5 dB at maximum where −3‐dB bandwidth is 3.5 GHz, noise figure of 5.5–7.5 dB, and P1dB of 0.5 dBm while consuming 7 mA from 1.2‐V supply. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1953–1956, 2014