Additively manufactured millimeter-wave dual-band single-polarization shared aperture fresnel zone plate metalens antenna

J Zhu, YANG YANG* (Corresponding Author), M Li, David McGloin, S Liao, J Nulman, M Yamada, Francesca Iacopi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


Fresnel zone plate (FZP) lens antenna, consisting of a set of alternative transparent and opaque concentric rings arranged on curvilinear or flat surfaces, have been widely used in various fields for sensing and communications. Nevertheless, the state-of-art FZP lens antennas are limited to a single band due to the frequency-dependent feature, which hinders their use in multi-band applications. In this work, a shared aperture dual-band FZP metalens antenna is proposed by merging two single-band FZP metalens antenna operating at distinct frequency bands seamlessly into one. Instead of using conventional metallic conductors, double-screen metagrids are devised in this work to form the concentric rings. Because the metagrids show distinct transmission/reflection properties at different frequencies, the performance of one set of concentric rings operating at the one band will not be affected by the other operating at the different band. In addition, to compensate for the phase shift introduced by the metagrids, an additional dielectric ring layer is added atop the FZP taking advantage of additive manufacturing. Thus, the radiation performance of the dual-band FZP lens antenna is comparable to that of each single FZP metalens antenna. For proof-of-concept, an antenna prototype operating at the dual band, 75 and 120 GHz with a frequency ratio of 1.6, is fabricated using an integrated additively manufactured electronics (AME) technique. The measured peak gains of 20.3 and 21.9 dBi are achieved at 75 and 120 GHz, respectively.
Original languageEnglish
Pages (from-to)6261-6272
Number of pages12
JournalIEEE Transactions on Antennas and Propagation
Issue number10
Early online date6 Apr 2021
Publication statusPublished - 1 Oct 2021


  • Additive manufacturing
  • dual-band
  • Fresnel zone plate (FZP)
  • metalens antenna
  • millimeter-wave (mm-wave)


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