Performance Enhancement of Microstrip Circular Ring Dual-Band Patch Antenna with Minimum Reflection for Effective Wireless Communication Applications. - Kalli, Sivanagireddy; Srinivas, Yerram; Aouthu, Srilakshmi; Reddy, V. Sidda; Chapa, Babji Prasad; Valathuru, Mahesh; Prasad, Nagandla (Journal of Nano- & Electronic Physics, 2025)