Characterization of Conformal Antenna for 5G-Enabled Industrial Robots

The conformal microstrip patch with circular slot antenna with coplanar waveguide feed is developed to operate in millimeter wave for industrial robot communications. The proposed antenna structure is designed on conformal substrate RT/Duroid 5880 and portion of the ground plane are tapered to realize the broad bandwidth characteristics. The circular slots are made at the center of the patch to attain stable radiation pattern over the frequency range of 24.75–27.25 GHz. Both the impedance and radiation characteristics of the proposed structure are simulated using ADS software, where it resonates at 26 GHz with minimum return loss of 48 dB and VSWR of 1.023. Moreover, radiation characteristics of the proposed antenna are observed at 26 GHz. The proposed antenna achieves maximum gain of 4.22 dBi with radiation efficiency of 88.65%.