Author : Nayela Gufran, Rohini Saxena, Mukesh Kumar and A.K.Jaiswal

This paper presents a triple-band microstrip patch antenna with defect in the ground plane. Defected ground structure perturbs the current distribution of ground plane and causes the antenna to resonate at three distinct resonating frequencies of 6.3GHZ, 8.5GHZ, 9.3GHZ, with fractional bandwidth 200MHZ and 1.2GHZ respectively. Antenna has an appropriate gain of 8.0698dB at resonating frequency of 9.3GHZ. The proposed antenna also has good radiation characteristics and VSWR below 2 over the operating bands. The antenna is simulated using Ansoft HFSS software. Taconic RF-35(tm) material is used for substrate with height 3mm. the designed antenna is found to be appropriate in C and X-band applications.

Keywords: DGS; Microstrip antenna; Triple-band; Taconic RF-35(tm); HFSS

Article published in International Journal of Current Engineering and Technology, Vol.6, No.5 (Oct-2016)