Title :
A 10 GHz active annular ring antenna
Author :
J.A. Hagerty;Z. Popovic
Author_Institution :
Dept. of Electr. & Comput. Eng., Colorado Univ., Boulder, CO, USA
fDate :
6/24/1905 12:00:00 AM
Abstract :
An X-band oscillating element can be achieved in compact form with high-efficiency operation and high isotropic conversion gain. An annular ring is used here both as the radiating element and microstrip feedback circuit for the amplifier. A maximum DC-RF conversion efficiency for co-polarized radiated power is 55% at 10 GHz with maximum effective radiated power of 23.6 dBm and total radiated power of 15.5 dBm. The active ring is a good candidate for high aperture efficiency spatial power combining arrays and compact low-cost wireless sensors.
Keywords :
"Microstrip antenna arrays","Antenna feeds","Feedback circuits","Geometry","Switches","Bandwidth","Apertures","Power transmission lines","Distributed parameter circuits","Propagation losses"
Conference_Titel :
Antennas and Propagation Society International Symposium, 2002. IEEE
Print_ISBN :
0-7803-7330-8
DOI :
10.1109/APS.2002.1016081
