• Nagabhushana H M

In this article a modified plus shaped circular slotted ultrawide band (UWB) microstrip patch antenna for wireless applications is designed and developed. The design process is carried out by taking rectangular patch antenna of size 21 x 15 x 1.6 mm3 with resonant frequency 4.5 GHz as the basic design to achieve and optimize the proposed antenna. The proposed design gives a close approximation of the ultrawide band range from 3.05 - 10.5 GHz and resonates at 4.5 GHz with -10 dB simulated return loss and bandwidth of around 99.33% (3.05 - 10.5 GHz) of UWB range. Antenna design simulation is from HFSS software, fabricated on FR-4 substrate of εr=4.4, height h=1.6 mm and tangent loss δ=0.01. The fabricated antenna is measured using Agilent E8362B vector network analyzer and an isolated anechoic chamber setup. The optimized, simulated and measured results like return loss S11, VSWR, radiation pattern and gain are analyzed and validated for close approximation. The presented antenna can be utilized for various wireless applications like 3.6 / 4.9 / 5 / 5.9 GHz WiFi, 3.41 / 3.49 GHz LTE, 3.5 / 5.5 GHZ WiMAX, 4.2 - 4.4 GHz Radio Altimeter, 5.2 / 5.8 GHz WLAN, 7.05 - 7.075 GHz Satellite Radio Uplink, 5.15 - 5.35 GHz HiperLAN and 3.3 / 3.4 GHz 5G applications.

Patch, HFSS, UWB, S11, VSWR, FR-4

"MODIFIED PLUS SHAPED CIRCULAR SLOTTED UWB MICROSTRIP PATCH ANTENNA FOR WIRELESS APPLICATIONS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 3, page no.d1-d8, March-2022, Available :http://www.jetir.org/papers/JETIR2203301.pdf

"MODIFIED PLUS SHAPED CIRCULAR SLOTTED UWB MICROSTRIP PATCH ANTENNA FOR WIRELESS APPLICATIONS", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 3, page no. ppd1-d8, March-2022, Available at : http://www.jetir.org/papers/JETIR2203301.pdf