近場與遠場通訊之相位陣列天線設計

Design of Phased Array Antenna for Near- and Far-Field Communication

洪國倫(Kuo-Lun Hung)

指導教授 ： 周錫增

元智大學/電機通訊學院/通訊工程學系/博士(2012年)

摘要

本論文探討陣列天線結構之輻射電磁場的波束成形最佳化設計。此波束成形最佳化利用發展出之波束成形法則與旁波瓣控制理論，使天線輻射能符合實務應用的電磁場分佈需求。在本論文中的天線技術可適用於遠場通訊與近場通訊，包括典型的點對點微波系統、無線通訊和最佳化能量涵蓋區域，以及非常近距的通訊。這些應用充分顯現大型陣列天線的優勢和彈性。在陣列天線的研究中，使用了5.8GHz、9GHz(X-Band)、24GHz(Ka-Band)的頻段來實現天線的設計。這些頻率的應用具備商業的應用和前瞻性，使本論文所發展的天線更具實用性。在本論文中，除了波束成形的最佳化方法、數值設計，也包括天線的模擬、天線成品的實現與量測驗證結果的討論。

關鍵字

槽孔導波管陣列天線 ； 貼片陣列天線 ； 八木天線 ； 天線輻射場形成形

並列摘要

This thesis presents an intensive investigation over the potential applications of phased antenna arrays to radiate electromagnetic fields with optimum field patterns. The optimum field pattern provides advantages of good field coverage with minimum system cost, and have attractive much attention from researchers, especially in the high frequency bands where the scattering from environmental structures will cause severe interference. In this study, we focus on the potential applications in the far- and near-field applications, including wireless communications at 5.8GHz band, point to point microwave transmission at X-band, and near field focus application at Ka-band. These frequency bands have been considered as the major frequency bands for the foreseen potential applications.
In the thesis, the optimization approach, numerical antenna design, antenna prototype and measurement to validate the antenna design are shown. To demonstrate the flexibility, three types of antenna structures are employed to realize the antenna design concept.

並列關鍵字

slotted waveguide antenna array ； patch antenna array ； Yagi antenna array ； radiation pattern beamforming

參考文獻

[1]K.V.S. Rao, P.V. Nikitin, and S.F. Lam, “Antenna design for UHF RFID tags: a review and a practical application”, IEEE Trans. Antennas Propag., Vol. 53, No. 12, pp. 3870-3876, Dec. 2005.

[2]J. Lin and C. Li, “Wireless non-contact detection of heartbeat and respiration using low-power microwave radar sensor,” Proceedings of Asia-Pacific Microwave Conference, 2007, pp. 1-4.

[3]S. Suzuki, T Matsui, H Kawahara, H Ichiki, J Shimizu, Y Kondo, S Gotoh, H Yura, B Takase and M Ishihara, “A non-contact vital sign monitoring system for ambulances using dual-frequency microwave radars,” Med Biol Eng Comput, Vol. 47, pp.101–105, 2009.

[4]Suzuki, T. Matsui, S. Gotoh, Y. Mori, B. Takase and M. Ishihara, “Development of Non-contact Monitoring System of Heart Rate Variability (HRV) - An Approach of Remote Sensing for Ubiquitous Technology,” Ergonomics and Health Aspects of Work with Computers, Lecture Notes in Computer Science, 2009, Volume 5624, pp.195-203,

[5]M. Bogosanovic and A.G. Williamson, “Antenna array with beam focused in near-field zone”, Electronics Letters, vol. 39, No. 9, pp. 704-705, May 2003.