A Simple Interference and Power-based Direction of Arrival Measuring System for Modern Communication
DOI:
https://doi.org/10.13052/2023.ACES.J.380505Keywords:
antennas, direction-of-arrival, interferometry, power amplifier, Wilkinson power dividerAbstract
In this paper, we present a system specialized for measuring the direction-of-arrival (DoA) of electromagnetic waves with noticeable simplicity. Unlike common methods, which are based heavily on complex computation and signal processing, our proposed system is considerably simpler, both in terms of design and operating theory. Our design consists of two directional antennas for collecting incident waves, a system of Wilkinson power combiners and dividers in which the waves collected by the antennas interfere, a result-processing block consisting of power amplifiers, rectifiers, and a microcontroller unit that respectively converts the interferometric radio-frequency (RF) signal into direct-current (DC) signal, measures its corresponding power before calculating the incident angle solely based on a simple trigonometric equation. The system yields a high accuracy of less than 7.5o with the incident angle ranging from −60o to 60o.
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S. Zouaoui, M. Souilem, W. Dghais, A. Radwan, S. Barmada, and M. Tucci, ‘‘Wireless power transfer and data communication cognitive radio through two-coil inductive channel,” IEEE Global Communications Conference (GLOBECOM), Waikoloa, HI, USA, Feb. 2019.
B. Clerckx, R. Zhang, R. Schober, D. Ng, D. Kim, and H. Poor, “Fundamentals of wireless information and power transfer: From RF energy harvester models to signal and system designs,” IEEE Journal on Selected Areas in Communications, vol. 37, pp. 4-33, Jan. 2019.
B. Clerckx, K. Huang, L. Varshney, S. Ulukus, and M.-S. Alouini, “Wireless power transfer for future networks: Signal processing, machine learning, computing, and sensing,” IEEE Journal of Selected Topics in Signal Processing, Aug. 2021.
T. D. P. Perera, D. N. K. Jayakody, S. Chatzinotas, and V. Sharma, “Wireless information and power transfer: Issues, advances, and challenges,” IEEE 86th Vehicular Technology Conference (VTC-Fall), pp. 1-7, 2017.
D. W. K. Ng, T. Q. Duong, C. Zhong, and R. Schober, The Era of Wireless Information and Power Transfer, Wiley Telecom, 2019.
D. Peavey and T. Ogumfunmi, “The single channel interferometer using a pseudo-Doppler direction finding system,” IEEE International Conference on Acoustics, Speech, and Signal Processing, Apr. 1997.
H. Chen and E. H. W. Chan, “Simple approach to measure angle of arrival of a microwave signal,” IEEE Photonics Technology Letters, vol. 31, pp. 1795-1798, Oct. 2019.
O. A. Oumar, M. F. Siyau, and T. P. Sattar, “Comparison between MUSIC and ESPRIT direction of arrival estimation algorithms for wireless communication systems,” International Conference on Future Generation Communication Technology, pp. 99-103, 2012.
Y. Tian, Y. Huang, X. Zhang, M. Lin, and X. Qiao, “A robust algorithm for DOA estimation of coherent sources with UCA,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 37, no. 6, pp. 692-701, 2022.
A. Azarbar, G. R. Dadashzadeh, and H. R. Bakhshi, “2-D DOA estimation with matrix pencil method in the presence of mutual coupling,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 27, no. 9, pp. 742-748, 2012.
S. Hemour, Y. Zhao, C. H. P. Lorenz, D. Houssameddine, Y. Gui, C.-M. Hu, and K. Wu, “Towards low-power high-efficiency RF and microwave energy harvesting,” IEEE Transactions on Microwave Theory and Techniques, vol. 62, no. 4, pp. 965-976, 2014.
S. K. Tomohiko Mitani and N. Shinohara, “Direction-of-Arrival estimation by utilizing harmonic reradiation from rectenna,” IEEE Wireless Power Transfer Conference (WPTC), Feb. 2018.
L. Peng, Y. Lianshan, Y. Jia, F. Xia, P. Wei, L. Bin, Z. Xihua, Z. Tao, and C. Zhiyu, “Photonic approach for simultaneous measurements of Doppler-frequency-shift and angle-of-arrival of microwave signals,” Optics Express, vol. 27, pp. 8709-8716, Feb. 2019.
Y. Han, Q. Fang, L. Song, F. Yan, X. Qiao, and S. Zhuang, “DOA estimation for unequal power sources using extremely low profile aperture coupled microstrip antenna,” Applied Computational Electromagnetics Society (ACES) Journal, vol. 31, no. 9, pp. 1100-1109, 2016.
R. Pohlmann, S. Zhang, T. Jost, and A. Dammann, “Power-based direction-of-arrival estimation using a single multi-mode antenna,” 14th Workshop on Positioning, Navigation and Communications (WPNC), Jan. 2018.