H Shaped Broad Band Dielectric Antenna With Low Profile and Trapezoidal Feed for Advanced Wireless Applications

In this article, a novel H-shaped dielectric resonator antenna (DRA) placed on top of a cube DRA excited with a trapezoidal feed was analyzed for broadband applications. A ceramic material with a dielectric constant of 9.8 was used in the DRA structure design and placed on a NeltecNY9260 (IM) (tm) substrate measuring 55 x 55 x 0.715 mm³ to analyze the proposed antenna. From 4.0 to 8.1 GHz, the proposed antenna structure has a large impedance bandwidth of 67.7% with | S11 | -10 dB.The simulated antenna offers a maximum gain of 6.68 dB in the operating band. This antenna is useful for C-band, Wi-Max (3.3-3.7 GHz) and WLAN (4.6-5.8 GHz) applications.