TY - JOUR AU - Mohamed M. Elsewe, AU - Deb Chatterjee, PY - 2021/07/25 Y2 - 2024/03/28 TI - Ultra-Wide Bandwidth Enhancement of Single-Layer Single-Feed Patch Antenna Using the Theory of Characteristic Modes JF - The Applied Computational Electromagnetics Society Journal (ACES) JA - ACES Journal VL - 33 IS - 03 SE - Articles DO - UR - https://journals.riverpublishers.com/index.php/ACES/article/view/9241 SP - 363-366 AB - <p>The Theory of Characteristic Modes (TCM) is proposed as a systematic approach to antenna design to achieve the goal of finding the antenna structure with optimum broadband behavior. This theory provides a physical insight to the radiating nature of microstrip patch antennas and reduces the design optimization time. In this work, the resonant behavior of the highly radiating structure of the single U-slot rectangular patch on a single-layer epsilon r = 4.4 substrate is analyzed using TCM. Modal analysis of this single-layer structure with different single feed excitations concludes that VSWR less than or equal to 2 impedance bandwidth in the order of 96% can be achieved with a single T-probe feed. Experimental results, included here, show VSWR less than or equal to 2 impedance bandwidth in the order of 71%.</p> ER -