An Optically Transparent Dual-Polarized Stacked Patch Antenna With Metal-Mesh Films

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

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Detail(s)

Original languageEnglish
Article number8801900
Pages (from-to)1981-1985
Journal / PublicationIEEE Antennas and Wireless Propagation Letters
Volume18
Issue number10
Online published15 Aug 2019
Publication statusPublished - Oct 2019

Abstract

A wideband dual-polarized stacked patch antenna with optical transparency is proposed in this letter. The traditional metal plates are replaced by transparent conductive films made by printing metal meshes with sheet resistance of 0.5 ohm/sq to single side of Polyethylene terephthalate (PET). The planar conductive layers are separated by substrates made by transparent polymethyl methacrylate (PMMA) plates. The majority of the antenna area has a high optical transparency. A wide impedance bandwidth is realized by applying stacked round microstrip patches. The disk probes provide good impedance matching as well as small occlusion area. Measurement results show the antenna exhibits an impedance bandwidth of 19% (2.4-2.9 GHz, VSWR < 2) for both ports. The radiation efficiency is around 75%. The antenna has a stable unidirectional radiation pattern with low cross-polarization (< -17 dB) and low back-radiation level across the operating frequency band.

Research Area(s)

  • Dual-polarization, optical transparency, unidirectional patterns, wideband antennas