Wideband 3D-Printed Transmit-Reflect-Array Antenna with Independent Beam Control

Zhenqin Zheng, Long Zhang, Qi Luo, Chunxu Mao, Yejun He, Steven Gao

Research output: Contribution to journalArticlepeer-review


This communication proposes a wideband 3-D-printed transmit-reflect-array (TRA) antenna. The transmission and reflection functions of this TRA antenna are determined by the polarization of the incident electromagnetic wave. The proposed TRA element is composed of a dielectric post and three copper wires, which can be realized by the low-cost 3-D printing. Attributed to the independent control of transmission and reflection phase shift of the proposed element within a wide bandwidth, the proposed TRA antenna can generate two independent transmission and reflection beams over a wide bandwidth. A 12 ×12 TRA is designed, fabricated, and measured to verify the design concept. The measured results show that a peak gain of 24.4 dBi with a bandwidth of 46.8% (18-29 GHz) for the transmitarray (TA) function and a peak gain of 22.9 dBi with a bandwidth of 52.2% (17-29 GHz) for the reflectarray (RA) function are achieved simultaneously by the 3-D-printed TRA antenna. The wide bandwidth, high gain, independent beam control capability, combined TA/RA functions, and low fabrication cost make the proposed antenna appealing for various wireless applications.

Original languageEnglish
Article number10101746
Pages (from-to)6196-6201
Number of pages6
JournalIEEE Transactions on Antennas and Propagation
Issue number7
Early online date12 Apr 2023
Publication statusE-pub ahead of print - 12 Apr 2023


  • Transmitting antennas
  • Antenna radiation patterns
  • Wires
  • Gain
  • Dielectrics
  • Copper
  • Wideband
  • 3D-printed antenna
  • wideband antenna
  • transmit-reflect-array antenna
  • 3-D-printed antenna
  • transmit-reflect-array (TRA) antenna


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