Commenced in January 2007
Frequency: Monthly
Edition: International
Paper Count: 30840
0.13-µm Complementary Metal-Oxide Semiconductor Vector Modulator for Beamforming System

Authors: J. S. Kim


This paper presents a 0.13-µm Complementary Metal-Oxide Semiconductor (CMOS) vector modulator for beamforming system. The vector modulator features a 360° phase and gain range of -10 dB to 10 dB with a root mean square phase and amplitude error of only 2.2° and 0.45 dB, respectively. These features make it a suitable for wireless backhaul system in the 5 GHz industrial, scientific, and medical (ISM) bands. It draws a current of 20.4 mA from a 1.2 V supply. The total chip size is 1.87x1.34 mm².

Keywords: Beamforming, CMOS, ISM, vector modulator, wireless backhaul

Digital Object Identifier (DOI):

Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 536


[1] S. S. Jeon, Y. Wang, Y. Qian, T. Itoh, "A novel smart antenna system implementation for broad-band wireless communications", IEEE Trans. Antennas Propag., vol. 50, no. 5, pp. 600-606, May 2002.
[2] G. Caire, S. Shamai, “On the achievable throughput of a multiantenna Gaussian broadcast channel,” IEEE Trans. Inf. Theory, vol. 49, pp.1691-1706, 2003.
[3] H. Huang, C. B. Papadias, S. Venkatesan, MIMO Communication for cellular Networks. Springer, 2012.
[4] A. Hajimiri, H. Hashemi, A. Natarajan, X. Guan, and A. Komijani, “Integrated phased array systems in silicon”, Proceedings of IEEE, vol. 93, no. 9, pp. 1637–1655, 2005.
[5] J. Paramesh, R. Bishop, K. Soumyanath, and D. Allstot, “A four-antenna receiver in 90-nm CMOS for beamforming and spatial diversity”, IEEE Journal of Solid-State Circuits, vol. 40, no. 12, pp. 2515–2524, 2005.
[6] F. Ellinger, R. Vogt, and W. Bächtold, “A high yield ultra small passive vector modulator based phase shifter for smart antenna combining at C-band”, IEEE/CSIRO Asia Pacific Microwave Conference, pp. 794–797, Dec. 2000.
[7] F. Ellinger, U. Lott, and W. Bächtold, “An antenna diversity MMIC vector modulator for HIPERLAN with low power consumption and calibration capability”, IEEE Transactions on Microwave Theory and Techniques, vol. 49, pp. 964– 969, May 2001.
[8] K.-J. Koh and G. M. Rebeiz, “0.13 μm CMOS phase shifters for X-, Ku-, and K-band phased arrays”, IEEE Journal of Solid-State Circuits, vol. 42, pp. 2535-2545, Nov. 2007.
[9] F. V. D. Bogaart and R. Pyndiah, “A 10-14 GHz linear MMIC vector modulator with less than 0.1 dB and 0.8 amplitude and phase error”, IEEE MTT-S Digest, pp. 465–468, 1990.
[10] J. Grajal, J. Gismero, M. Mahfoudi, and F. A. Petz, “A 1.4- 2.7 GHz analog MMIC vector modulator for a crossbar beamforming network”, IEEE Transactions on Microwave Theory and Techniques, vol. 45, pp. 1705–1714, Oct. 1997.
[11] S. Kim, D. Kang, K. Koh, and G. M. Rebeiz, “An improved wideband all-pass I/Q network for millimeter-wave phase shifters,” IEEE Trans. on MTT, Vol. 60, No. 11, pp. 3434-3439, Nov. 2012.