Title :
Dual-band phase offset line with required transmission phases at two operational frequencies
Author :
Rawat, Karun ; Rawat, Meenakshi ; Hashmi, M. S. ; Falcone, Francisco ; Ghannouchi, Fadhel M.
Author_Institution :
iRadio Laboratory, Department of Electrical & Computers Engineering, Schulich School of Engineering, University of Calgary, Alberta, Canada T2N 1N4
Abstract :
The paper presents analytical design methodology for realizing dual-band phase offset line using multi-section coupled lines. The circuit is designed to emulate a transmission line of 50 Ω characteristic impedance with two different arbitrary phases at the two frequencies. A prototype has been design at 1960 /3500 MHz that is used in dual-band Doherty power amplifier operating for CDMA and WiMAX applications.
Keywords :
Couplings; Dual band; Equations; Impedance; Mathematical model; Microwave amplifiers; Power amplifiers; Doherty power amplifier; all-pass filter; coupled line; dispersion; phase offset lines;
Conference_Titel :
Microwave Symposium Digest (MTT), 2012 IEEE MTT-S International
Conference_Location :
Montreal, QC, Canada
Print_ISBN :
978-1-4673-1085-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2012.6259591
