Effect of Rectangular Slots On Printed Antenna for C and X Band Application

Abstract

Planar antennas play an important role in the field of wireless communication to a greater extent since it has been replaced by traditional large antennas. The microstrip antenna is of the compact, low cost antenna. In the present work, rectangular slots are embedded on a printed antenna (microstrip antenna) using quarter wave transformer feed. The effect of rectangular slots near the radiating edge of printed antenna is observed. The antenna is showing triple band in nature i. e frequency f1 = 6.46 GHz, f2 = 8.54 GHz and f3 = 9.65 GHz with return loss R1 = - 16.93 dB, R2 = -13.2 dB and R3 = -11.31 dB. High frequency structure simulator is used to simulated the antenna design. The simulated antenna is fabricated using low cost substrate FR4 and experimental results is carried out using the vector analyzer model MS2037C/2. The printed antenna is compared with the simulated and experimental results and it is observed that the antenna is showing good return loss, bandwidth, VSWR and gain.