Multilayer Microstrip Antenna for Broadband Monopulse Tracking Technique

The current work proposes a single element of a microstrip patch array antenna that is performing well as a prominent radiation patch element and can be developed for monopulse tracking systems like seeker applications due to its broad bandwidth, effective directional pattern, low-profile conformal design, low cost, and ease of manufacturing. A single unit of a multilayer aperture-coupled microstrip antenna has been developed for the X-band frequency range with a bandwidth of 1 GHz. The single element of a multilayer antenna structure is designed to obtain a low return loss, wider bandwidth, better directivity, and better gain. For a multilayer microstrip antenna that operates at the center frequency of 10.9 GHz, the return loss of − 42 dB with 6.3 dBi gain, having VSWR < 1.5, has been achieved by analyzing using the CST Microwave Studio EM Simulator.