Title
Performance Evaluation For Rf-Combining Diversity Antenna Configured With Variable Capacitors
Abstract
An RF adaptive array antenna (RF-AAA) configured with variable capacitors is proposed. This antenna system can control the power combining ratio and phase value of received signals. In this paper, we focus on the diversity effects of RF-AAA. First, we show the design methodology of the combiner circuit to realize the effective combining. Second, the perturbation method and the steepest gradient method are compared for the optimization algorithms to provide fast convergence and suboptimum solutions among the variable circuit constants. Finally, in simulation, we show the RF-AAA can achieve diversity antenna gains of 7.7 dB, 10.9 dB and 12.6 dB for 2-branch, 3-branch and 4-branch configuration, respectively, which have higher performance than the selection combining.
Year
DOI
Venue
2006
10.1093/ietele/e89-c.4.488
IEICE TRANSACTIONS ON ELECTRONICS
Keywords
Field
DocType
mobile systems, adaptive array antennas, diversity antennas, variable capacitor, RF-combining diversity antennas, perturbation method, steepest gradient method
Antenna diversity,Capacitor,Variable capacitor,Antenna measurement,Power control,Antenna array,Electronic engineering,Diversity combining,Antenna factor,Engineering
Journal
Volume
Issue
ISSN
E89C
4
1745-1353
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Hiroya Tanaka15118.12
Jun-ichi Takada223747.62
Ichirou Ida3507.59
Yasuyuki Oishi4338.87