Title :
DC/RF power loci for various active patch antennas
Author :
Ali, N.T. ; McEwan, N.J. ; El-khazmi, E.A.
Author_Institution :
Etisalat Coll. of Eng., Sharjah, United Arab Emirates
Abstract :
A characteristic loop locus of DC power versus RF output power was observed as the frequency was varied around the optimum point of an active antenna operation. A new technique was introduced into the simulation of plotting the dependence of parameters, such as supply current, efficiency or output power, on internal impedance as seen. by the naked transistor. It is now clear that the loop was formed as a consequence of the interaction of the transistor packaging elements with the patch impedance
Keywords :
active antennas; antenna accessories; circuit resonance; electric impedance; microstrip antennas; DC power; RF output power; active antennas; antenna efficiency; internal impedance; patch antennas; resonance effects; supply current; transistor packaging elements; Capacitors; Circuit simulation; Feedback loop; Impedance; Packaging; Patch antennas; Power generation; Radio frequency; Shape; Voltage;
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.2001.983616
