Title :
Modal Q as a bounding metric for MIMO antenna optimization
Author :
Binbin Yang ; Adams, Jacob J.
Author_Institution :
Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA
Abstract :
Using characteristic mode theory (CMT), we show that there are limited number of low Q modes supported by an electrically small structure. The minimum Q of each mode of any substructure is observed to be successively bounded by that of the primary structure, implying fundamental limit on multi-input, multi-output (MIMO) antenna bandwidth and providing a metric for antenna shape synthesis.
Keywords :
MIMO communication; antenna arrays; CMT; MIMO antenna optimization; antenna shape synthesis; bounding metric; characteristic mode theory; electrically small structure; modal Q modes; multiinput multioutput antenna bandwidth; Feeds; Genetic algorithms; MIMO; Optimization; Q-factor; Shape; Characteristic modes; MIMO antennas; Q factor;
Conference_Titel :
Applied Computational Electromagnetics (ACES), 2015 31st International Review of Progress in
Conference_Location :
Williamsburg, VA
