Journal
2023 17TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION, EUCAP
Volume -, Issue -, Pages -Publisher
IEEE
Keywords
Air-filled substrate-integrated-waveguide; radioover-fiber; antenna arrays; co-design; distributed antenna systems
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This contribution discusses recently proposed remote antenna units (RAUs) based on air-filled substrate-integrated-waveguide technology, emphasizing the co-design between antenna elements and optoelectronic transducers. Results showed that the performance of the RAU benefits from a thorough co-design, achieving a conjugate-match between components, compared to optimizing each component separately. The sub-6 GHz RAU underwent significant miniaturization, while the mmWave RAU achieved improved efficiency.
This contribution discusses several recently proposed remote antenna units (RAUs) based on air-filled substrate-integrated-waveguide technology, specifically focusing on the co-design between antenna elements and optoelectronic transducers. These include two passive sub-6 GHz transmit RAUs and one active mmWave transmit RAU. It is concluded that the RAU's performance benefits from a thorough co-design, aiming for a conjugate-match between both components, when compared to a diakoptic design procedure, optimizing both components separately. Specifically, this approach resulted in a significant miniaturization of the sub-6 GHz RAU, while in case of the mmWave RAU, the efficiency was improved.
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