Abstract

This paper demonstrates the comparison between two on-chip antennas, circular microstrip patch antenna (CMPA), and cylindrical dielectric resonator antenna (CDRA), planned for operation at 60 GHz and integrated into 0.18-µm CMOS integrated circuits. The antennas are fed with similar feeding networks. The bandwidth for a return loss below −10 dB is 17.9 % for CMPA and 21 % for CDRA. The simulated radiation patterns of both antennas exhibit similar properties. The gain of the CDRA is 2.2 dB higher than CMPA. Likewise, the results show that the radiation efficiency of CDRA is significantly higher than that of the CMPA at 60 GHz. A comparative study on the transmission gain for wireless interconnections using CMPA and CDRA in the cases of intra- and inter-chip interconnections is investigated. Transmission gain proves the superiority of CDRA compared to CMPA. The proton implantation technique is used to improve the transmission gain. The silicon substrate resistivity is increased from 10 Ω-cm up to 10 MΩ-cm.

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