Microwave photonics beamforming for 5G

Yue Lin; Qi Qiu; Zhiqiang Fan; Jun Su

doi:10.1117/12.2620415

26 July 2022 Microwave photonics beamforming for 5G

Yue Lin, Qi Qiu, Zhiqiang Fan, Jun Su

Proceedings Volume 12278, 2021 International Conference on Optical Instruments and Technology: Optical Communication and Optical Signal Processing; 122780Q (2022) https://doi.org/10.1117/12.2620415
Event: 2021 International Conference on Optical Instruments and Technology, 2022, Online Only

Abstract

This paper reviewed and summarized microwave photonics beamforming architecture which could directly apply in 5G communications in recent years. However, those research still have some limits. We investigated the connection of radio frequency (RF) links and antenna elements (AEs) at present 5G multi-antenna systems and propose a microwave photonics beamforming architecture with dynamic subarray by combing reconfigurable optical routing networks with independent optical true time delay units. Optical routing networks enable distributing signals to AEs which are any number and at any position, to accomplish the dynamic combinations of those AEs. Independent optical true-time delay units enable the array could transmit or receive the RF beams towards or from different directions simultaneously. We simulated the beam pattern of the proposed system in various communication situations to validate our concept can effectively expand the application field of microwave photonics beamforming systems and could bring the advantages of microwave photonics technology, such as large bandwidth, low loss, immunity to electromagnetic interference, and non-beam squint effect.

Citation Download Citation

Yue Lin, Qi Qiu, Zhiqiang Fan, and Jun Su "Microwave photonics beamforming for 5G", Proc. SPIE 12278, 2021 International Conference on Optical Instruments and Technology: Optical Communication and Optical Signal Processing, 122780Q (26 July 2022); https://doi.org/10.1117/12.2620415

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