Radiation characteristics of high powe mesoband patch antenna array

To enhance the total power capability and gain of the high power mesoband electromagnetic pulse radiator, the study of a high power mesoband patch antenna array was conducted, including analysis of antenna elements, mutual coupling analysis, design of power divider and discussion on radiation characteristics of mesoband electromagnetic pulse. Using high power twolayer wideband patch antenna as array element, variations of ports reflection and mutual coupling factors with element spacing were analyzed, and 30 cm was chosen as the spacing with the analysis of gain versus element spacing. A 1∶4 coaxial power divider was designed with wide frequency band achieved using impedance tapered structure, and its reflection ratio was below 0.1 from 224 to 415 MHz. The simulation of the array with t