Annular slot ring antenna with enhanced radiation characteristics for radiolocation applications

Abstract

Annular slot ring antenna is a desirable choice for conformai antenna applications due to its compact size. This paper presents an Annular Slot Ring Antenna with an enhanced bandwidth performance. The proposed antenna is operating in the wide frequency range of 7.9–9.1 GHz, with a gain of 5.9 dBi and is fabricated on a Teflon substrate with copper cladding. The enhanced radiation characteristics indicate that this proposed antenna can efficiently replace conventional onboard microstrip antennas mounted on Unmanned Aerial Vehicles (UAVs) for radiolocation applications.