International Journal of Energy Engineering          
International Journal of Energy Engineering(IJEE)
ISSN:2225-6563(Print)
ISSN:2225-6571(Online)
Frequency: Yearly
Editor-in-Chief: Prof. Sri Bandyopadhyay(Australia)
A 28 GHz Linear Envelope Tracking-Power Amplifier for LMDS Applications
Full Paper(PDF, 555KB)
Abstract:
This paper presents the design and simulation of an envelope tracking power amplifier (ET-PA) for 28 GHz LMDS applications. A linearization algorithm is also employed in digital domain in order to reduce the distortion of the system. Simulation shows that the proposed ET-PA delivers 19dBm output power with 21dB linear gain. Power added efficiency of this amplifier is more than 41% which shows about 15 percent efficiency enhancement compared to conventional LMDS PAs.
Keywords:envelope tracking; power amplifier; millimeter wave; LMDS; linearization; digital predistortion
Author: Parisa Momen Roodaki1, Fatemeh Taghian1, Abbas Mohammadi1, Abdolali Abdipour1
1.Microwave/mmw and Wireless Communications research Lab. Electrical Engineering dept.Amirkabir University of Technology Tehran, Iran
References:
  1. S. C. Cripps, RF Power Amplifiers for Wireless Communications, Norwood, MA: Artech House, 1999.
  2. S. C. Cripps, Advanced Techniques in RF Power Amplifier Design, Artech House, 2002.
  3. P. B. Kennington, High Linearity RF Amplifiers Design. Norwood, MA: Artech House, 2000.
  4. Mansoor K. Siddiqui, Arvind K. Sharma, “A High-Power and High-Effciency Monolithic Power Amplifer at 28 GHz for LMDS applications", IEEE Transactions on Microw. Theory Tech, Vol. 46, No. 12, pp. 2226- 2232, Dec. 1998
  5. Young-Gi Kim, Sung-Jae Maeng, “A PHEMT MMIC Broad-Band Power Amplifer for LMDS", IEEE Radio and Wireless Conference, pp. 121-124, Aug. 1998
  6. J. Shu, T. Hwang, “Ka-Band 2 Watt Power SSPA for LMDS Application,” IEEE Trans. Microw. Theory Tech, pp.573-576, June 1998.
  7. T. Satoh, T. Shimura, “A compact PA MMIC module for K-band high-speed wireless systems", 2000 IEEE MTT-S Digest, pp. 1333-1336, June 2000.
  8. Jinseong Jeong, Donald F. Kimball,, Myoungbo Kwak, Chin Hsia, Paul Draxler and Peter M. Asbeck “Wideband Envelope Tracking Power Amplifiers with Reduced Bandwidth Power Supply Waveforms and Adaptive Digital Predistortion Techniques” IEEE Transactions On Microwave Theory And Techniques, Vol. 57, No. 12, December 2009.
  9. B. Kim, J. Moon, and I. Kim “Efficiently amplified” IEEE Microw. Magazine, Aug. 2010.
  10. D. F. Kimball, J. Jeong, C. Hsia, P. Draxler, S. Lanfranco, W. Nagy, K. Linthicum, L. E. Larson, and P. M. Asbeck, “High-efficiency envelope tracking W-CDMA base-station amplifier using GaN HFETs,” IEEE Trans. Microw. Theory Tech., vol. 54, no. 11, pp. 3848–3856, Nov. 2006.
  11. P. M. Roodaki, A. Mohammadi, A. Abdipour, “Utilizing Five-Port Down-Converter in Adaptive Linearization of Base Station Envelope Tracking Power Amplifiers”, unpublished.
  12. J. Yan, C. D. Presti, D. F. Kimball, Y. Hong, Ch. Hsia, P. M. Asbeck, and J. Schellenberg, “Eficiency Enhancement of mm-Wave Power Amplifiers Using Envelope Tracking” IEEE Microw. Wireless Components Letters, Vol. 21, No. 3, March 2011.
  13. F. Wang, D. F. Kimball, J. D. Popp, A. H. Yang, D. Y. Lie, P. M. Asbeck, L. E. Larson., “An improved power-added efficiency 19-dbm hybrid envelope elimination and restoration power amplifier for 802.11 g WLAN applications,” IEEE Trans. Microw. Theory Tech., vol. 54, no. 12, pp. 4086–4099, Dec. 2006.
  14. O. Hammi, F. M. Ghannouchi and B. Vassilakis, "A Compact Envelope-Memory Polynomial for RF Transmitters Modeling with Application to Baseband and Rf-Digital Predistortion," IEEE Microw. and Wireless Components Letters, vol. 18, pp. 359-361, May 2008.
  15. M. Dashti, A. Mohammadi, and Jun-ichi Takada, “Adaptive Digital Predistortion linearizer for high power amplifiers”, the institude of electronic, Information and Communication Engineers, 2007.