Design and Evaluation of E-Shaped Microstrip Patch Antenna (MPA) For Wimax Application

A novel material- Mg Ferrite doped with Samarium (Sm), Dysprosium (Dy) was synthesised through sol-gel route. This novel ferrite material showed a very low value of εr (2.8). This ferrite material was sandwitched between the FR-4 substrates and a Microstrip patch antenna (MPA) was designed by using electromagnetic simulator IE3D software. The function of radiating element was analysed, by determining the return loss, voltage standing wave ratio (VSWR), directivity, gain and efficiency. The results showed that the antenna had an acceptable performance with VSWR ≤ 2, return loss of-9.799dB, this was obtained by using a 50 ohms feed line and with a certain level of geometry tuning over the patch to resonate at the desired frequency. The geometry tuning of about 5 % compared to the actual sizes required to resonate at a frequency range of 3.5GHz