• Rahul Kumar Garg
• Raghuvir Singh Tomar

A detailed study of the effects of feeding techniques on the performance of rectangular patch antenna is reported. Return loss, VSWR, gain, input impedance and bandwidth are studied. Co-axial line, Microstrip line, and Co-planar waveguide feeds are used. The patch is placed over a 1.6 mm thick FR-4 substrate. The patch is fed using a 50 Ω co-axial line, a 50 Ω microstrip line, and a 50 Ω co-planar waveguide, respectively. An average gain of 5.06 dB with ± 1.56 dB tolerances is observed. The bandwidth obtained is 150 MHz to 3.04 GHz for VSWR≤ 2. It is observed that antenna resonance frequency changes significantly, when co-planer wave guide feed is used and patch dimensions need to be optimized. It is also observed that the coplanar waveguide feed helps in obtaining wideband operation.

Rectangular microstrip patch, co-axial feed, microstrip line feed, co-planar waveguide (CPW) feed, bandwidth.

"Effects of Feeding Techniques on the Performance of Rectangular Patch Antennas", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.157-162, May-2019, Available :http://www.jetir.org/papers/JETIR1905R23.pdf

"Effects of Feeding Techniques on the Performance of Rectangular Patch Antennas", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp157-162, May-2019, Available at : http://www.jetir.org/papers/JETIR1905R23.pdf