High-Gain Filtering Reflectarray Antenna for Millimeter-Wave Applications

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

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  • Yuan-Song Zeng
  • Ka Fai Chan
  • Bao-Jie Chen
  • Shi-Wei Qu


Original languageEnglish
Article number8852814
Pages (from-to)805-812
Journal / PublicationIEEE Transactions on Antennas and Propagation
Issue number2
Online published30 Sep 2019
Publication statusPublished - Feb 2020


This article presents a novel design of filtering reflectarray antenna, an integrated module for the combination of filtering and high-gain radiation performance. The filtering reflectarray consists of two-section metal pixel waveguide elements, which can realize the optimized aperture reflection phase distributions in the operating band ƒ≤ ƒ ≤ ƒ2 to yield high-gain radiation. Below the lower cutoff frequency ƒ1, the reflection phase distributions drastically deviate from the required ones. Above the upper cutoff frequency ƒ2, both the amplitude and phase distributions fail to provide strong coherent radiation. In the reflectarray synthesis process, a multi-frequency phase matching method (PMM) is further developed, in which the phase compensation for each pixel is implemented at three simultaneous in-band frequencies. Meanwhile, the effects of incident angle for elements are also taken into consideration during the reflectarray synthesis. The design of an 11λ × 11λ filtering reflectarray operating from 55 to 65 GHz was conveniently fabricated by 3-D printing technology, followed by metal coating with advantages of rapid prototyping, lightweight, and low cost. Both the simulated and measured results show that the proposed reflectarray can realize high-gain radiation within the desired frequency band but presents effective suppression of out-of-band signals, demonstrating its filtering capability.

Research Area(s)

  • 3-D printing, filtering antenna, high gain, millimeter wave (mmW), reflectarray

Citation Format(s)

High-Gain Filtering Reflectarray Antenna for Millimeter-Wave Applications. / Wu, Geng-Bo; Zeng, Yuan-Song; Chan, Ka Fai; Chen, Bao-Jie; Qu, Shi-Wei; Chan, Chi Hou.

In: IEEE Transactions on Antennas and Propagation, Vol. 68, No. 2, 8852814, 02.2020, p. 805-812.

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