Beamwidth enhancement of on-chip antenna integrated in single-chip FMCW radar using periodic dielectric lenses
Conference ContributionSyeda, R.Z., Adela, B.B., Van Beurden, M.C., Van Zeijl, P.T.M. & Smolders, A.B. (2017). Beamwidth enhancement of on-chip antenna integrated in single-chip FMCW radar using periodic dielectric lenses. 2017 11th European Conference on Antennas and Propagation, EUCAP 2017, 19-24 March 2017, Paris, France (pp. 1170-1173). Piscataway: Institute of Electrical and Electronics Engineers (IEEE). In Scopus Cited 0 times.
We demonstrate a compact design for enhancing the 3dB beamwidth of a 60 GHz single-chip millimeter-wave frequency modulated continuous wave (FMCW) radar with integrated on-chip antennas. We use thin (Xfreespace/5) dielectric periodic lenses on top of the epoxy cover of the single-chip radar to change the effective material properties of the epoxy, which changes the field distribution and hence the radiation pattern and beamwidth of the on-chip antennas. The simulation of our periodic lenses with single-chip radar shows an increased H-plane beamwidth of the on-chip antenna by 60% at the center frequency of 60 GHz. Also, the on-chip antenna radiation efficiency is increased by 20%.