Center-fed patch antenna array excited by an inset dielectric waveguide for 60-GHz applications

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Article number7430294
Pages (from-to)1733-1739
Journal / PublicationIEEE Transactions on Antennas and Propagation
Issue number5
Publication statusPublished - 1 May 2016


A patch antenna array proximity-coupled fed by the inset dielectric waveguide (IDW) is proposed in 60-GHz frequency band. The antenna array consists of four series-fed subarrays each having eight pairs of circular patch elements, four substrate integrated IDWs, and a compact four-way power divider transmitting the signal from the grounded coplanar waveguide (GCPW) to the IDWs. The IDW is realized by metallized via-hole arrays in a printed circuit board (PCB). The parallel center-fed configuration is applied to suppress the frequency-dependent beam squinting of the series-fed subarray. Measured results show that the proposed antenna exhibits a gain variation between 15.8 and 19.2 dBi, fixed main beam in the direction of θ= 0, and the reflection coefficient S11≤-10dB over the frequency band from 58 to 64 GHz.

Research Area(s)

  • Fixed beam, grounded coplanar waveguide, inset dielectric waveguide, millimeter wave, patch antenna array, printed circuit board