Design and development of linear array of rectangular aperture coupled microstrip antennas with application in beamforming

In this letter, we propose a Broadband stacked, low-cost low profile, based on an aperture coupled feeding with linear array. Paper presents the experimental investigations carried out for obtaining X-band operation of rectangular microstrip antenna by using aperture coupled feeding technique. Frequency range set at approximately 8.6 to 10.9 GHz, by incorporating frequency range of the antenna resonates for single wideband with an impedance bandwidth of 23%. The enhancement of impedance bandwidth and gain does not disturb the humor of broadside radiation characteristics. The design concepts of antennas are presented and experimental results are discussed. This letter describes the design, operation, and realization of the beamforming array antenna.