• Jasmeet Singh

In this paper heptagon shape planar microstrip slot antenna is presented. Heptagonal antenna can find applications in wireless & mobile communications in the X band for radar & space –craft utilizations. The antenna is fed by a 50 Ω microstrip line and printed on a dielectric Fr4 substrate of dimension (15mm X 15 mm) permittivity εr =4.4 and height h = 1.6 mm. The optimization on the planar heptagonal microstrip has been done to accomplish an ultra wide 10 dB return loss bandwidth. Moreover, in comparison with a simple rectangular shaped antenna, the proposed design enhances the bandwidth and improves input return loss. Better than 94.26 % radiation efficiency has been achieved in the range 3.1 to 12 GHz. The parameters like substrate dimension, feed size and ground plane which affect the performance of the antenna in terms of its frequency domain and time domain characteristics are investigated.

Directional patterns, finite ground plane, microstrip line feed, microstrip slot antenna, omni-directional patterns, ultra wideband .

"Investigation on Heptagonal Structure Microstrip Antenna for operation in the X-Band Communication Applications", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.12, Issue 2, page no.g758-g762, February-2025, Available :http://www.jetir.org/papers/JETIR2502694.pdf

"Investigation on Heptagonal Structure Microstrip Antenna for operation in the X-Band Communication Applications", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.12, Issue 2, page no. ppg758-g762, February-2025, Available at : http://www.jetir.org/papers/JETIR2502694.pdf