Title :
A compact wideband MEM switched diversity antenna for indoor mobile channels
Author :
Cetiner, B.A. ; Qian, J.Y. ; Liu, S. ; Jofre, L. ; Li, G.P. ; De Flaviis, F.
Author_Institution :
California Univ., Irvine, CA, USA
Abstract :
In this paper we introduce a wideband three-element diversity antenna for compact wireless communication systems operating in the 4-6 GHz band. A series of experiments to characterize the diversity performance of the antenna for non-line-of-sight (NLOS) indoor multipath environments is conducted. From these experiments, we calculate envelope correlation, power imbalance, and diversity gain. We also use this structure as a basis for another diversity antenna, with RF MEM switches providing different reception/transmit characteristics for switched diversity signals. A novel printed circuit board (PCB)-compatible RF MEMS process technology employed to construct the system on RT/Duroid5880 is discussed. Radiation characteristics of the MEM switched antenna are also provided.
Keywords :
broadband antennas; diversity reception; indoor radio; land mobile radio; microswitches; microwave antennas; microwave switches; multipath channels; printed circuit design; 4 to 6 GHz; RF MEM switches; RT/Duroid 5880; compact wideband MEM switched diversity antenna; compact wireless communication systems; diversity gain; diversity performance; envelope correlation; indoor mobile channels; nonline-of-sight indoor multipath environments; power imbalance; printed circuit board compatible RF MEMS process technology; radiation characteristics; reception/transmit characteristics; wideband three-element diversity antenna; Broadband antennas; Communication switching; Diversity methods; Mobile antennas; Printed circuits; RF signals; Radio frequency; Switches; Transmitting antennas; Wireless communication;
Conference_Titel :
Microwave Symposium Digest, 2003 IEEE MTT-S International
Conference_Location :
Philadelphia, PA, USA
Print_ISBN :
0-7803-7695-1
DOI :
10.1109/MWSYM.2003.1210469
