Title :
Wideband low-noise amplifier by LC load-reusing technique
Author :
Hsieh, Jian-Yu ; Wang, Tao ; Lu, Shey-Shi
Author_Institution :
Grad. Inst. of Electron. Eng., Nat. Taiwan Univ., Taipei, Taiwan
Abstract :
A wideband LNA (2.4-6 GHz) is realised in 0.18 um CMOS technology by adopting a unique LC load-reusing technique. The LC load at the output is transformed into a series LC circuit at the input, leading to an extension of the matching bandwidth (4.8 GHz). The NF shows an extremely flat frequency response within 0.2 dB difference around 2.7 dB over the band of interest. A linearisation technique is also utilised to improve the input third-order intercept point (IIP3) ranging from -1.9 to -3.9 dBm.
Keywords :
CMOS analogue integrated circuits; MMIC amplifiers; UHF amplifiers; UHF integrated circuits; field effect MMIC; linearisation techniques; low noise amplifiers; wideband amplifiers; CMOS technology; LC load-reusing technique; frequency 2.4 GHz to 6 GHz; frequency response; input third-order intercept point; linearisation technique; series LC circuit; size 0.18 mum; wideband low-noise amplifier;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.3052
