Ultra-Wideband Dielectric Resonator Antenna Design Based on Multilayer Form

Abstract EN

In this paper, an ultra-wideband dielectric resonator antenna (DRA) is investigated.

It basically covers the bandwidth from 6 GHz to 16 GHz and achieves a relative bandwidth of 90.9%.

It is found that a wide bandwidth can be reached with a small DRA by adopting multilayer form.

Thus, the dimension of the designed DRA element which is composed of nine-element phased-scanning linear array is as small as 6.9mm x 8.2mm x 11 mm.

While the maximum stable zenith gain is 6.2dB, the lobe width is 3 dB.

The operating frequency range of the antenna array is from 5.42GHz to 16.5GHz, achieving a 101.1% relative bandwidth.

A large scanning angle of ±60° is realized within the operating frequency band, with good scanning pattern and cross polarization.

To verify the design and simulation, a 1 × 9 DRA array is fabricated, and measurements are carried out.