Title :
2.4GHz super-regeneration amplifier with degenerative quenching technique for RF-pulse width transceiver
Author :
Zahabi, A. ; Anis, M. ; Ortmanns, M.
Author_Institution :
Inst. of Microelectron., Univ. of Ulm, Ulm, Germany
Abstract :
This paper presents a 2.4GHz super-regeneration amplifier with capacitively-loaded integrated transmission line for a short range RF-pulse width transceiver. The degenerative quenching technique is employed in the super-regenerative amplifier to improve the linearity and reduces the sensitivity of negative transconductance (GM) to the bias current. It also reduces the direct coupling of the high frequency quenching pattern to the resonator and the negative GM stage. The capacitively-loaded integrated transmission line reduces the phase noise in transmit and receive modes. A test structure of the amplifier has been implemented in 0.25um BiCMOS technology. The amplifier consumes 1.2mA and 1.5mA from 2.5V supply in transmit and receive mode for a data rate of 20Mb/s and a sensitivity of -95dBm.
Keywords :
BiCMOS integrated circuits; UHF amplifiers; UHF resonators; phase noise; radio transceivers; transmission lines; BiCMOS technology; RF-pulse width transceiver; bias current; bit rate 20 Mbit/s; capacitively-loaded integrated transmission line; current 1.2 mA; current 1.5 mA; degenerative quenching technique; frequency 2.4 GHz; high-frequency quenching pattern; negative GM stage; negative transconductance sensitivity; phase noise reduction; resonator; size 0.25 mum; superregeneration amplifier; voltage 2.5 V; Oscillators; Power transmission lines; Radio frequency; Receivers; Resonant frequency; Sensitivity; Transceivers; Low power; RF-Pulse width; degenerative amplifier; super-regeneration; transmission line;
Conference_Titel :
Circuits and Systems (ISCAS), 2012 IEEE International Symposium on
Conference_Location :
Seoul
Print_ISBN :
978-1-4673-0218-0
DOI :
10.1109/ISCAS.2012.6271712
