Broadband multilayer stacked rectangular micro strip patch antenna using edge coupled patches

摘要

Microstrip patch antennas are widely used because of their many advantages, such as the low profile, light weight, and conformity. However, patch antennas have a main disadvantage i.e. a narrow bandwidth. Researchers have made many efforts to overcome this problem and many configurations have been presented to broaden the bandwidth. A new, compact, simple and gap coupled broadband microstrip patch antenna with multilayer stacked configuration is presented in this paper. The computer simulation results show that the antenna can realize wide band characters. The Return loss, smith chart, impedance, radiation pattern, gain, VSWR and directivity of such an antenna are studied. The possibility of increasing bandwidth, gain and directivity of the printed patch antenna using gap coupled patches is examined. Percentage bandwidth of antenna is approximately 71.7372% with constant gain in specified bandwidth with good cross-polarization.