Publication:
Photonic-based integrated sources and antenna arrays for broadband wireless links in terahertz communications

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Abstract
This paper analyzes integrated components for ultra-broadband millimeter-wave wireless transmitters enabling the 5 G objective to increase the wireless data rates 10x to 100x . We have pursued the photonic-based approach to generate the millimeter-wave carrier (approximate to 97GHz in this paper) through photomixing. We have achieved up to 10 Gb s(-1) data rate using an OOK modulation format (to reduce latency) and either direct detection (DD) or coherent detection. We show that coherent detection enables a sensitivity improvement of 17 dB over DD. We also demonstrate in this work that such improvement can be achieved using as the transmitter a novel integrated antenna array-the self-complementary chessboard array. This avoids the use of complex coherent schemes at the receiver, enabling simple DD for ultra-broadband links.
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Keywords
Photonic integration, Photomixing, Direct detection, Coherent detection, Wireless links, Millimeter-wave, Antenna arrays, Generation, Signals
Bibliographic citation
García-Muñoz, E., Abdalmalak, K. A., Santamaría, G., Rivera-Lavado, A., Segovia-Vargas, D., Castillo-Araníbar, P., Van Dijk, F., Nagatsuma, T., Brown, E. R., Guzman, R. C., Lamela, H. & Carpintero, G. (2019). Photonic-based integrated sources and antenna arrays for broadband wireless links in terahertz communications. Semiconductor Science and Technology, 34(5), 054001.