[1] R. Wu, R. Minami, Y. Tsukui, S. Kawai, Y. Seo, S. Sato, K. Kimura, S. Kondo, T. Ueno, N. Fajri, S. Maki, N. Nagashima, Y. Takeuchi, T. Yamaguchi, A. Musa, K. Kaan Tokgoz, T. Siriburanon, B. Liu, Y. Wang, J. Pang, N. Li, M. Miyahara, K. Okada, and Akira Matsuzawa, “64-QAM 60-GHz CMOS Transceivers for IEEE 802.11ad/ay,” IEEE J. Solid-State Cir., vol. 52, no. 11, pp. 2871-2891, 2017. DOI:
10.1109/JSSC.2017.2740264
[2] S. Blandino, G. Mangraviti, C. Desset, A. Bourdoux, P. Wambacq, and S. Pollin, “Multi-User Hybrid MIMO at 60 GHz Using 16-Antenna Transmitters,” IEEE Trans. Cir. Sys. I, vol. 66,
iss. 2, pp. 848 – 858, 2019. DOI:
10.1109/TCSI.2018.2866933
[7] Y. Ban et al., “4G/5G multiple antennas for future multi-mode smartphone applications,” IEEE Access, vol. 4, pp. 2981–2988, 2016. DOI:
10.1109/IMWS-AMP.2016.7588434
[8] J. Butler and R. Howe, “Beamforming matrix simplifies design of electronically scanned antennas,” Elec. Design., vol. 9, no. 8, pp. 170–173, 1961.
[9] H. J. Moody, “The systematic design of the Butler matrix,” IEEE Trans. Antennas Propag., vol. 12, no. 6, pp. 786–788, 1964.
[10]
A. B. Shallah,
F. Zubir,
M. K. A. Rahim,
H. A. Majid,
U. U. Sheikh,
N. A. Murad,
Z. Yusoff, “
Recent Developments of Butler Matrix From Components Design Evolution to System Integration for 5G Beamforming Applications: A Survey,”
IEEE Access, vol. 10, pp. 8434 – 88456,2022. DOI:
10.1109/ACCESS.2022.3199739
[11] T. Djerafi
et al., "Planar Ku-Band 4x4 Nolen Matrix in SIW Technology," IEEE Trans. Micro. Theory Techn., vol.58,no.2,pp.259-266,2010. DOI:
10.1109/APMC.2008.4958041
[12] P. Chen, W. Hong, Z. Kuai, and J. Xu, “A Double Layer Substrate Integrated Waveguide Blass Matrix for Beamforming Applications,” IEEE Microw. Wireless Com. Lett., vol. 19, no. 6, pp. 374-376, 2009.
https://doi.org/10.1016/j.aeue.2022.154287
[13] D. H. Kim, J. Hirokawa, K. Tekkouk, M. Ando, R. Sauleau, “Comparison between one-body 2-D beam-switching Butler matrix and 2-D beam-switching Rotman lens,” Proceedings of ISAP, 2016.
[18]
K. Tekkouk,
J. Hirokawa,
R. Sauleau,
M. Ettorre,
M. Sano,
M. Ando, “
Dual-Layer Ridged Waveguide Slot Array Fed by a Butler Matrix With Sidelobe Control in the 60-GHz Band,”
IEEE Trans. Antennas Propag, vol. 63,
iss. 9, pp. 3857-3867, 2015. DOI:
10.1109/TAP.2015.2442612
[19] T. Tomura, Dong-Hun Kim, M. Wakasa, Y. Sunaguchi, J. Hirokawa, Kentaro Nishimori, “A 20-GHz-band 64×64 Hollow Waveguide Two Dimensional Butler Matrix,”
IEEE Access, vol. 7, pp. 164080 – 164088, 2019.
[20]
M. Farahani,
M. Akbari,
M. Nedil,
A. R. Sebak,
T. A. Denidni, “
Millimeter-Wave Dual Left/Right-Hand Circularly polarized Beamforming Network,”
IEEE Trans. Antennas Propag, vol. 68,
iss. 8, pp. 6118-6127, 2020. DOI:
10.23919/EuCAP48036.2020.9135282
[21] P.-S. Kildal, E. Alfonso, A. Valero-Nogueira and E. Rajo-Iglesias, “Local metamaterial-based waveguides in gaps between parallel metal plates,” IEEE Antennas Wireless Propag. Lett., vol. 8, pp. 84-87, 2009. DOI:
10.1109/LAWP.2008.2011147
[22] P.-S. Kildal, “Three metamaterial-based gap waveguides between parallel metal plates for mm/submm waves,” in Proc. EuCAP, Mar. 2009.
[23] E. Rajo, P-S. Kildal, “Numerical Studies of Bandwidth of Parallel Plate Cut-Off Realized by a Bed of Nails, Corrugations and Mushroom-Type Electromagnetic Bandgap for Use in Gap Waveguides,” IET Microw. Antennas Propag., vol. 5, no. 3, pp. 282-289, 2011. DOI:
10.1049/iet-map.2010.0073
[24] M. S. Dehghani, D. Zarifi, “Design of Power Divider Based on Gap Waveguide Technology for Use in Low Sidelobe Level 60-GHz Slot Array Antenna,” J. Appl. Electromagnetics, vol. 7, no.2, pp. 97-104, 2020. (In Persian). DOR:
20.1001.1.26455153.1398.7.2.11.6
[26] Adrián Tamayo-Domínguez, José-Manuel Fernández-González and Manuel Sierra-Castañer, “3-D-Printed Modified Butler Matrix Based on Gap Waveguide at W-Band for Monopulse Radar,” IEEE Trans. Microw. Theory Tech., vol. 68, iss. 3, pp. 926-938, 2019. DOI:
10.1109/TMTT.2019.2953164
[27] Chao-Hsiung Tseng, Chih-Jung Chen and Tah-Hsiung Chu, “A Low-Cost 60-GHz Switched-Beam Patch Antenna Array With Butler Matrix Network,” IEEE Antennas and Wireless Propagation Letters, vol. 7, pp. 432-435, 2008. DOI:
10.1109/LAWP.2008.2001849
[28] K. Tekkouk, J. Hirokawa, R. Sauleau, M. Ettorre, M. Sano, M. Ando, “Dual-layer Ridged Waveguide Slot Array fed by a Butler Matrix with Sidelobe Control in the 60 GHz Band, IEEE Transactions on Antennas and Propagation, vol. 63, Iss. 9, pp. 3857 – 3867, 2015. DOI:
10.1109/TAP.2015.2442612
[29] P. Chen, W. Hong, Z. Kuai, J. Xu, H. Wang, J. Chen, H. Tang, J. Zhou, and K. Wu “A Multibeam Antenna Based on Substrate Integrated Waveguide Technology for MIMO Wireless Communications, IEEE Trans. Antennas Propag., vol. 57, no. 6, pp.1813-1821, 2009. DOI:
10.1109/TAP.2009.2019868
[30] F. Gross, “Smart Antenna for Wireless Communication,” McGraw-Hill, NY, USA, 2005.
[31] H. J. Riblet, “The Short-Slot Hybrid Junction,” Proceedings of IRE, vol. 40, pp. 180-184, 1952.
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