Bandwidth enhancement of low-profile microstrip antennas using tightly coupled patch arrays

A tightly coupled patch array (TCPA) is introduced to realize small-size and low-profile microstrip antennas with enhanced bandwidth performance. Past approaches have used electromagnetic band gap (EBG) structures or frequency selective surfaces (FSSs) as substrates (i.e. in passive mode) to realize low-profile antennas. In contrast, the proposed TCPA… CONTINUE READING