Edge Grounding Perforated Triangular Dielectric Resonator Antenna

A compact wideband Triangular Dielectric Resonator Antenna (TDRA) is analyzed and simulated. Perforations improve bandwidth by letting down the quality factor. The perforations are array of symmetrical circular-shaped slots drilled uniformly on the TDRA. On proposed the optimal size of slots and distance between two consecutive slots, the fundamental modes of the TDRA is preserved. This aids in making the geometry compact placing a metal plate and employing edge grounding. The coaxial probe acts like a monopole that further improves bandwidth by matching, monopole and higher order modes of the TDRA in the frequency band 4.62GHz to 4.93GHz. The proposed geometry offers a wide impedance of 59% for. The measured results show that the radiation efficiency of the proposed antenna above is 89% for the complete bandwidth with the stable radiation pattern.