A 60 GHz High-Gain Circularly Polarized Dielectric Resonator Antenna Array Using Bondwire Feeding Structure

A 60 GHz high-gain millimeter-wave (mmW) left-handed circularly polarized dielectric resonator antenna (DRA) array in silicon substrate integrated passive device (IPD) technology for unlicensed V-band (57-64 GHz) application is presented. In the proposed array structure, a 1-to-4 series-type ring-shape microstrip power divider is connected with four bondwire structures feeding four dielectric resonators (DRs). The results show that the antenna can operate in V-band, and the impedance bandwidths with $\vert \vert$ less than -10 dB are from 51.6 to 64.1 GHz. The gain are 9 dBi at 60 GHz. The axial ratio is less than 3 dB from 57.2 GHz to 63 GHz. The proposed antenna is well suited for millimeter-wave high-gain beam forming wireless communication systems.