Design and Investigation of Corporate Feed 4x2 Square Array Microstrip Antennas at S-Band

Wireless local area network (WLAN) applications nowadays has become more popular especially those operating in the S-band (2. 0-4. 5Ghz). This paper present the design and enhancement of gain and bandwidth of microstrip antenna using the Agilent layout and probe feed. The antenna were designed to operate at S-band (2. 0-4. 5GHz). The dimensions of each single element of the microstrip antenna, at the operating frequency was calculated using transmission line model and the S-parameters data were obtained using Agilent simulator. The scaling factor of 1. 10 was considered for the design on FR4 substrate with = 4. 77 with thickness of 1. 62mm and 0. 019 and proved to be operating with adequate bandwidth and radiation characteristics.