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Word cloudA word cloud is a visual representation of the most frequently used words in a text or a set of texts. The words appear in different sizes, with the size of each word being proportional to its frequency of occurrence in the text. The more frequently a word is used, the larger it appears in the word cloud. This technique allows for a quick visualization of the most important themes and concepts in a text.
In the context of this page, the word cloud was generated from the publications of the author {}. The words in this cloud come from the titles, abstracts, and keywords of the author's articles and research papers. By analyzing this word cloud, you can get an overview of the most recurring and significant topics and research areas in the author's work.
The word cloud is a useful tool for identifying trends and main themes in a corpus of texts, thus facilitating the understanding and analysis of content in a visual and intuitive way.
Liu, R., Nallandhigal, S. N., & Wu, K. (2024). Passive Receiver Array Illuminated by a Near-Field Local Oscillator. IEEE Antennas and Wireless Propagation Letters, 1-5. External link
Liu, R., & Wu, K. (2024). Near-Field Technologies for Multifunction Wireless Connectivity: Recent principles and applications. IEEE Antennas and Propagation Magazine, 2-17. External link
Liu, R., Li, J., Si, W., & Wu, K. (2022, July). Design Algorithm of Near-Field Multi-Focus Array: Studies in Robustness against Array Element Failure [Paper]. IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/USNC-URSI 2022), Denver, CO, USA. External link
Liu, R., Li, J., Si, W., & Wu, K. (2022, August). Near-Field Powering Sourceless Receiving System for Two-Dimensional DoA Estimation [Paper]. 14th International Conference on Microwave and Millimeter Wave Technology (ICMMT 2022), Harbin, China (3 pages). External link
Liu, R., & Wu, K. (2021). Arbitrary Near-Field Spatial Signal Processing. IEEE Transactions on Antennas and Propagation, 69(4), 2072-2082. External link
Liu, R. (2019). Theoretical and Experimental Investigation of Near-Field Multi-Focusing Systems [Ph.D. thesis, Polytechnique Montréal]. Available
Liu, R., & Wu, K. (2019). Antenna Array for Amplitude and Phase Specified Near-Field Multifocus. IEEE Transactions on Antennas and Propagation, 67(5), 3140-3150. External link
Liu, R., & Wu, K. (2019, May). Compact Millimeter-Wave SIW Circuit that Combines Phase-Shifting and Attenuating Functions [Paper]. IEEE MTT-S International Wireless Symposium (IWS 2019), Guangzhou, China (3 pages). External link
Li, J., Zeng, Q., Liu, R., & Denidni, T. A. (2017). Beam-Tilting Antenna With Negative Refractive Index Metamaterial Loading. IEEE Antennas and Wireless Propagation Letters, 16, 2030-2033. External link
Li, J., Zeng, Q., Liu, R., & Denidni, T. A. (2017). A Compact Dual-Band Beam-Sweeping Antenna Based on Active Frequency Selective Surfaces. IEEE Transactions on Antennas and Propagation, 65(4), 1542-1549. External link
Li, J., Denidni, T. A., Liu, R., & Zeng, Q. (2016, August). Beam-tilting Antenna with Metamaterial Loading [Abstract]. Progress in Electromagnetics Research Symposium (PIERS 2016), Shanghai, China. External link
Qu, M., Liu, R., Deng, Z., Si, W., & Wu, K. (2024). A Direction-Finding Model with Spatial Polarization Characteristics. IEEE Transactions on Antennas and Propagation, 15 pages. External link
Wang, M., Liu, R., Deng, Z., Si, W., & Wu, K. (2023, November). Polarization Sensitive Fishbone Metasurface with Spatial Wave Selectivity and Convergence [Paper]. IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP 2023), Chengdu, China (3 pages). External link
