Diversity Antenna Loaded with Reactance Control Circuits Configured with Variable Capacitors for Effective Combining

Diversity antenna loaded with the reactance control circuits configured with variable capacitors was proposed. Advantages of this proposed configuration are that signals are detected only by one receiver and that the hardware architecture is simple. However, effective combining has not been achieved due to a mismatch between the combiner and the receiver. In order to improve this problem, we considered the resistance of the output load. Finally, we show that the performance of the proposed system is close to selection combining.