Title :
Frequency band selection techniques for multi-mode receiver application
Author :
Madihian, Mohammad
Author_Institution :
NEC Labs. America Inc., Princeton, NJ, USA
Abstract :
This paper describes a frequency-band selection technique and its application to multi-mode wireless transceiver applications. The technique utilizes voltage-controlled variable inductors and resistors for, respectively, changing input/output impedance and load of the transceiver´s key-circuits in accordance with each mode´s frequency band. Results for several 0.18 μm-BiCMOS building block circuits including RF amplifiers and up/down mixers show feasibility of the approach for multi-mode transceiver systems.
Keywords :
BiCMOS integrated circuits; inductors; network topology; radio receivers; radiofrequency amplifiers; resistors; software radio; transceivers; 0.18 micron; BiCMOS building block circuits; RF amplifiers; circuit topology; frequency-band selection technique; input impedance; multi-mode wireless transceiver applications; output impedance; voltage-controlled variable inductors; voltage-controlled variable resistors; Circuit topology; Feedback circuits; Impedance; Inductance; Inductors; Radio frequency; Radiofrequency amplifiers; Resistors; Transceivers; Voltage control;
Conference_Titel :
Radio and Wireless Conference, 2003. RAWCON '03. Proceedings
Print_ISBN :
0-7803-7829-6
DOI :
10.1109/RAWCON.2003.1227914
