Title :
An automatically matched CMOS attenuator at C-band with improved control linearity
Author :
Mayer, Uwe ; Wickert, Michael ; Eickhoff, Ralf ; Ellinger, Fran
Author_Institution :
Circuit Design & Network Theor., Dresden Univ. of Technol., Dresden, Germany
Abstract :
In this work, a fully differential CMOS attenuator for C-band comprising matching and control linearization loops is presented. At 5.6 GHz, a total attenuation range of 3.8-29.4 dB was measured. The phase changes only by ±6° in an attenuation control range of 15 dB. The control amplifiers draw a total current of 0.54 mA from a single 2.5 V supply.
Keywords :
CMOS integrated circuits; attenuators; field effect MMIC; C-band; attenuation control range; control amplifiers; control linearization loops; current 0.54 mA; frequency 5.6 GHz; fully differential CMOS attenuator; linear control; loss 3.8 dB to 29.4 dB; matching control loops; voltage 2.5 V; Attenuation; Attenuators; Automatic control; CMOS technology; Circuit synthesis; Gain control; Linearity; Radio frequency; Topology; Voltage control; Attenuator; C-band; CMOS; matching;
Conference_Titel :
Microwaves, Communications, Antennas and Electronics Systems, 2009. COMCAS 2009. IEEE International Conference on
Conference_Location :
Tel Aviv
Print_ISBN :
978-1-4244-3985-0
DOI :
10.1109/COMCAS.2009.5386004
