Title :
Experimental and theoretical investigation of high efficiency active patch antennas
Author :
Ali, N.T. ; El-khazmi, E.A. ; McEwan, N.J.
Author_Institution :
Etisalat Coll., Sharjah, United Arab Emirates
Abstract :
A new shape has been proposed for a micro-strip radiator which showed an improvement in the power added efficiency when integrated with a medium power transistor. The new shape produced little or no improvement when tried in a class F amplifier arrangement. Initial investigation implied that class F amplifier is problematic when it is tried with medium-large transistors
Keywords :
UHF antennas; UHF power amplifiers; active antennas; microstrip antennas; 2.35 GHz; PAE; UHF; class F amplifier arrangement; high efficiency active patch antennas; medium power transistor; micro-strip radiator; power added efficiency; Antenna measurements; Electrical resistance measurement; Frequency measurement; Impedance measurement; Particle measurements; Patch antennas; Power measurement; Power transistors; Reflector antennas; Shape;
Conference_Titel :
Info-tech and Info-net, 2001. Proceedings. ICII 2001 - Beijing. 2001 International Conferences on
Conference_Location :
Beijing
Print_ISBN :
0-7803-7010-4
DOI :
10.1109/ICII.2001.983615
