Photonic-based beamforming system for sub-THz wireless communications

Alvaro Morales, Serguei Smirnov, Dmitri V. Lioubtchenko, Joachim Oberhammer, Chigo Okonkwo, Idelfonso Tafur Monroy

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

3 Citations (Scopus)
69 Downloads (Pure)


This work presents a sub-THz transmitter scheme for wireless communications with beam steering capabilities based on photonics means. A true time delay 1x4 beamforming photonic chip is designed in Si3N4 technology to continuously tune the progressive time delay between consecutive antenna elements. Simulation results show a progressive delay up to 15 ps with a bandwidth of 1.3 GHz, enabling broadband operation at frequencies above 75 GHz. The sub-THz signals are generated on photoconductive antennas on chip by photonic heterodyning. The design of a dielectric rod antenna array is also presented to efficiently radiate the generated wave.
Original languageEnglish
Title of host publication2019 European Microwave Conference in Central Europe (EuMCE)
EditorsJan Vrba, Milan Svanda, Ondrej Fiser, David Vrba
Number of pages4
ISBN (Electronic)978-2-87487-067-5
Publication statusPublished - May 2019
EventEuropean Microwave Association (EuMA 2019) - Prague, Czech Republic
Duration: 13 May 201915 May 2019


ConferenceEuropean Microwave Association (EuMA 2019)
Country/TerritoryCzech Republic


  • Antenna arrays
  • Microwave photonics
  • Millimeter wave communication
  • Photonic integrated circuits


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