Title :
A 0.5-V 2.5-GHz high-gain low-power regenerative amplifier based on Colpitts oscillator topology in 65-nm CMOS
Author :
Hamada, Taisuke ; Hao Jiang ; Yiming Fang ; Ito, Hiroyuki ; Ishihara, Noboru ; Masu, Kazuya
Author_Institution :
Tokyo Inst. of Technol., Yokohama, Japan
Abstract :
This paper proposes the regenerative amplifier based on the Colpitts oscillator topology. The positive feedback amount was optimized analytically in the circuit design. The proposed regenerative amplifier was fabricated in 65 nm CMOS technology. The measurement results showed 28.7 dB gain and 6.4 dB noise figure at 2.55 GHz while consuming 120 μW under the 0.5-V power supply.
Keywords :
CMOS integrated circuits; UHF amplifiers; UHF integrated circuits; UHF oscillators; circuit optimisation; feedback amplifiers; feedback oscillators; low-power electronics; network topology; CMOS technology; Colpitts oscillator topology; circuit optimization; frequency 2.5 GHz; frequency 2.55 GHz; gain 28.7 dB; high-gain low-power regenerative amplifier; noise figure 6.4 dB; positive feedback; power 120 muW; size 65 nm; voltage 0.5 V; CMOS integrated circuits; CMOS technology; Gain; Impedance matching; Oscillators; Power demand; Topology;
Conference_Titel :
Circuits and Systems (APCCAS), 2014 IEEE Asia Pacific Conference on
Conference_Location :
Ishigaki
DOI :
10.1109/APCCAS.2014.7032789
