Electromagnetic Fields Radiated by a Circular Loop With Arbitrary Current

Abstract

Abstract-We present a rigorous approach to compute the electromagnetic fields radiated by a thin circular loop with arbitrary current. We employ a polar transmission representation along with a Kontorovich-Lebedev transform to derive integral representations of the field in the interior and exterior regions of a sphere circumscribing the loop. The convergence of the obtained expressions is discussed and comparisons with full-wave simulation and other methods are shown.

Analysis of Bandwidth and Working Frequency of Bi-circular Antenna

“…Research on the loop antenna analysis method has been conducted by Sen et al, about the general method of current excitation reconstruction in cylindrical antenna arrays [13], Joshi and Behera about the method of moment analysis in circular loop linear arrays and loop arrays [14]. Research on the characteristics of circular loop antennas has been carried out by Hamed and Bashir on the characteristics of circular loop antennas [15], Salem, and Caloz about the emission of electromagnetic fields by arbitrary currents in circular loops [16]. Research on loop antenna applications has been conducted by Vembarasi et al regarding the design of bi-circular antennas as wideband antennas [17], Zheng et al about the use of loop wire antenna as an orbital angular momentum generator [18].…”