Design and Optimization of an Ultra Wideband LNA-Antenna

Subject Areas : Majlesi Journal of Telecommunication Devices

samaneh matindoost ¹ , Majid Baghaei-Nejad ² , Ghasem Sadeghi Bajestani ³

1 - PhD Student in Electrical Engineering Electrical Engineering Department, Hakim Sabzevari University Khorasan Razavi,Iran
2 - Assistant Professor in Electronics Hakim Sabzevari University, Iran
3 - Imam Reza International University, Department of Biomedical Engineering, Mashhad, Iran

Received: 2014-11-29 Accepted : 2014-12-03 Published : 2015-06-01

Keywords: en,

Abstract :

In this paper, we proposed a low noise amplifier (LNA) for ultra wideband (UWB) applications using TSMC 0.18µm CMOS technology. LNA and high frequency H-shaped antenna have been utilized to solve problems of each block, such as the necessity of being matched with 50 Ohm impedance, so we have one more degree of freedom and a more complex system, although our choosing ability is increased.The targeted is Ultra Wide Band where this architecture and a Co-Designed version, with UWB-LNA architecture offer one of the best compromises between gain and noise figure.For having the best trade-offs between these two cases in UWB-LNA, both Multi-Objective Genetic Algorithm (GA) and Particle Swarm Optimization (PSO) are used successfully. Symmetric nature is obtained both in terms of S-parameter as well as flatness over a wide bandwidth for gain and noise figure.To have better Co-Design; in this work another optimization on antenna parameters performed with ADS Software.In co-optimization with the aid of two techniques; LNA parameters improvement utilizing evolutionary algorithms and antenna parameters enhancement in co-design output S-parameters had more promising results.Results show gain-flatness is being enhanced in desired frequency band. Noise factor is improved by more1.5 dB over the whole bandwidth [3.1GHz-8.1GHz]and supply voltage of 1.8V.

References:

[1] B. Razavi, T. Aytur, C. Lam, F. R. Yang, K. Y. Li, R. H. Yan, H. C. Kang, C. C. Hsu, C. C. Lee, “A UWB CMOS Transceiver,” IEEE J. Solid-State Circuits, vol. 40, no. 12, pp. 2555–2562, Dec2005.

[2] C. Liao, S. Liu, “A Broadband Noise-Canceling CMOS LNA for 3.1–10.6-GHz UWB Receivers,” IEEE J. Solid-State Circuits, vol. 42, no. 9, pp. 329–339, Sep. 2007.

[3] W. Wang and Y.P. Zhang, “0.18-μm CMOS Push-Pull Power Amplifier with Antenna in IC Package,” IEEE Microw. and Wirel. Compon. Lett., vol. 14, no. 1, Jan. 2004, pp. 13-15.

[4] Sayf Alalusi, Dennis Yee, Ian O'Donnell, Robert C. Frye, Robert Brodersen, "Antenna-Filter-CMOS LNA Co-design Strategy", CPD2000 - Zurich, Switzerland, March 13-15, 2000.

[5] Sung-Won Chung; Seung-Yoon Lee; Kyu-Ho Park; "Wideband impedance matching of integrated antennas and CMOS low noise amplifiers for a multi-band UWB receiver" Radio and Wireless Conference, 2004 IEEE 19-22 Sept. 2004 Page(s):131- 134.

[6] S. Matindoust, G. Sadeghy Bajestani, I. A. Akhlaghi, H. Nabovati, M. Vahedian, “Improvement of Ultra-Wideband LNA Parameters; Multi-Objective Algorithm for Flatness over Bandwidth Less 3dB,” in proc.2012, ICEE2012.

[7] F. Bruccoleri, E. A. M. Klumperink, B. Nauta, “Noise Canceling in Wideband CMOS LNAs,” in Proc.2002 IEEE ISSCC and Distribution Conf., vol. I, pp. 406 – 407, Feb. 2002.

[8] B. Razavi, “RF Microelectronics”, Prentics-Hall,Upper Saddle River , 1997.

[9] M. Taherzadeh, R. Lotfi, H. Zare and O. Shoaei, "Design optimization of analog integrated circuits using simulation-based genetic algorithm", Proc. IEEE International Symposium on signals and circuits.1: 73-76, July 2003 .

[10] R. A. Vural, O. Der, T. Yildirim, “Investigation of Particle Swarm Optimization for Switching Characterization of Inverter Design,” The Journal of science Direct, 2010.

[11] M. Barros, J. Guilherme, N. Horta, “Analog Circuits Optimization Based on Evolutionary Computation Techniques,” The VLSI journal 43(2010)136–155.

[12] Y.Pang, G.X. Shen, “Improving Excitation and Inversion Accuracy by Optimized RF Pulse Using Genetic Algorithm,” The Journal of Magnetic Resonance 186 (2007); P.86–93.

[13] M. Sumathi and S. Malarvizhi, “Design andperformance analysis of 5GHz CMOS RF frontendcircuits for IEEE 802.11 a application,”European Journal of Scientific Research vol. 54(3), pp. 418-426, 2011.

[14] D.Feng, B .Shi, “Comprehensive Analysis and Optimization of CMOS LNA Noise Performance”,IEEE. ASP.DAC.,pp . 1204-1207, 2005.

[15] P. V. V Koteswara Rao, Ch. Vishnu Vardhan Reddy, K. Tejaswini, B. V. V Ravindra Babu,K, Jagadeesh Babu, “A Wideband H Shape Dielectric Resonator Antenna for Wireless MIMO Systems,” The International Journal of Engineering and Innovative Technology (IJEIT), March 2012, ISSN: 2277-3754.