Title :
Passive transmission line phase shifter at C-band in CMOS using lumped elements
Author :
Wagner, J. ; Mayer, U. ; Ellinger, F.
Author_Institution :
Circuit Design & Network Theor., Dresden Univ. of Technol., Dresden
Abstract :
A passive transmission line phase shifter (TLPS) with lumped elements is implemented in a commercial 0.18 mum BiCMOS process. The phase shifter consumes no DC power, requires only one control voltage and has a size of only 1.3times0.8 mm2 while offering a continuously adjustable phase shift of over 360deg. At 5.2 GHz and for 360deg phase control, the measured insertion loss amounts (7.3plusmn2) dB. To the knowledge of the authors, the circuit has the lowest insertion loss reported to date for a passive phase shifter integrated in silicon with 360deg phase control. The circuit is well suited for adaptive antenna combining in mobile receivers.
Keywords :
BiCMOS analogue integrated circuits; CMOS analogue integrated circuits; MMIC phase shifters; lumped parameter networks; transmission lines; BiCMOS process; C-band; CMOS; adaptive antenna; frequency 5.2 GHz; lumped elements; mobile receivers; passive transmission line phase shifter; size 0.18 mum; Antenna measurements; BiCMOS integrated circuits; Insertion loss; Loss measurement; Phase control; Phase shifters; Power transmission lines; Size control; Transmission lines; Voltage control;
Conference_Titel :
Microwaves, Radar and Wireless Communications, 2008. MIKON 2008. 17th International Conference on
Conference_Location :
Wroclaw
Print_ISBN :
978-83-906662-8-0
