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Front-end HPA/antenna for multi-radio

Published online by Cambridge University Press:  01 May 2012

Antoine M. Diet*
Affiliation:
UMR 8506, Département de Recherche en Électromagnétisme (DRÉ), Laboratoire des Signaux et Systèmes (L2S), Supélec, plateau du Moulon, F-91192 Gif S/Yvette, France. Phone: +33 169851560
Nicolas Ribière-Tharaud
Affiliation:
CEA, DAM, GRAMAT, F-46500 Gramat, France
Martine Villegas
Affiliation:
Université Paris-Est, Equipe SYstèmes de COmmunication et Micro-systèmes ESYCOM, EA 2552, Groupe ESIEE, BP 99, Noisy-Le-Grand 93162, Cedex, France
Geneviève Baudoin
Affiliation:
Université Paris-Est, Equipe SYstèmes de COmmunication et Micro-systèmes ESYCOM, EA 2552, Groupe ESIEE, BP 99, Noisy-Le-Grand 93162, Cedex, France
*
Corresponding author: A. Diet Email: [email protected]

Abstract

This paper focuses on multi-radio front-end transmitter, a function implied by cognitive radio (0.5–6 GHz). S and C bands standards (wireless local and metropolitan area networks) present a challenge, due to the signal modulation schemes (orthogonal frequency division multiplex (OFDM)/WCDMA, wideband code division multiple access) dynamic (tens of dBs), driving us to a mandatory transmitter linearization. The idea is to provide frequency, flexibility, and average power control of a multi-radio high-efficiency front end for such signals (polar/envelope elimination and restoration (EER) structure). The study implies antennas design and average power control demonstration. Based on a switched mode power amplifier (PA), a discrete detuning is possible to adapt the PA at both “WiMAX” and “Wifi5” frequencies. This architecture amplifies signals with amplitude information. This is coded here by the ΣΔ/PWM (pulse width modulation) technique, to present a constant envelope signal. The amplitude information is restored by a pass-band radio frequency (RF) filter. The antenna can be designed with a notch, to reduce the filtering constraints (selectivity and standards coexistences) and to help in the restoration of amplitude information. Average power control is illustrated by voltage supply variation and results are a possible dynamic of 9.5 dB. To complete the analysis, the simulation of the propagation channel, including antennas, with CST (free space, line of sight) is imported under AGILENT-ADS.

Type
Research Papers
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2012

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References

[1]Colantonio, P.; Gianini, F.; Limiti, E.: “High efficiency RF and microwave solid-state power amplifiers”. Wiley and Sons Ltd, 2009, ISBN 978-0-470-51300-2, printed in Great Britain.Google Scholar
[2]Bahl, I.J.: Fundamentals of RF and Microwave Transistors Amplifiers. Wiley and Sons Inc, 2009, ISBN 978-0-470-39166-2, printed in the USA.Google Scholar
[3]Bao, X.; Ammann, M.J.: “Printed UWB Antenna with coupled slotted element for notch frequency function”. Int. J. Antenna Propag., Hindawi Publishing Corporation, Vol. 2008, Article ID 713921, 8 pages, doi:10.1155/2008/713921.Google Scholar
[4]Baudoin, G.; Berland, C.; Vilegas, M.; Diet, A.: Influence of time and processing mismatches between phase and envelope signals in linearisation systems using EER applied to Hiperlan 2. IEEE Int. Microwave Symp., IMS 2003, Philadelphia, USA.Google Scholar
[5]Chawanonphithak, Y.; Phongcharoenpanish, C.: A circular microstrip antenna with tuning stub above wide-slot ground plane for band-notched UWB using inverted U-slot Proc. of Asia-Pacific Microwave Conf., APMC, 2007.CrossRefGoogle Scholar
[6]Chawanonphithak, K.; Phongcharoenpanish, C.; Kosulvit, S.; Krairiksh, M.: “5.8 GHz notched UWB bidirectional elliptical ring antenna excited by circular monopole with curved slot” Proc. of Asia-Pacific Microwave Conf., APMC, 2007.Google Scholar
[7]Choi, J.; Yim, J.; Yang, J.; Kim, J.; Cha, J.; Kang, D.; Kim, D.; Kim, B.: “A ΣΔ digitized polar RF transmitter”. IEEE Trans. Microw. Theory Tech., 52, (12), 2007, 26792690.Google Scholar
[8]Diet, A.; Berland, C.; Villegas, M.; Baudoin, G.: EER architecture specifications for OFDM transmitter using a class E PA. IEEE Microw. Wirel. Compon. Lett. (MTT-S), 14(18) (2004), 389391, ISSN 1531-1309.Google Scholar
[9]Diet, A.; Azoulay, A.; Joisel, A.; Duchêne, B.: A UWB micro-strip antenna design and simulation. European Microwave Week, European Conf. on Wireless Technology, EuMW/ECWT, September 2006, Manchester, UK, 1694–1697.Google Scholar
[10]Diet, A.; Robert, F.; Suárez, M.; Valenta, V.; Montes, L. Andia; Ripoll, C.; Villegas, M.; Baudoin, G.: Flexibility of Class E HPA for Cognitive Radio. IEEE 19th symposium on Personal Indoor and Mobile Radio Communications, PIMRC 2008, September, Cannes, France. ISBN 978-1-4244-2644-7.Google Scholar
[11]Diet, A.; Robert, F.; Ribière-Tharaud, N.; Villegas, M.; Baudoin, G.: Front end accordability for cognitive multi-radio, using a class E HPA and a multi-band antenna. Asia Pacific Microwave Conf., APMC, Hong Kong, China, December 2008, 16–19.Google Scholar
[12]Grebennikov, A.: Class E high efficiency PA: Historical aspects and prospects. Appl. Microw. Wirel., 07, 2002, 6471.Google Scholar
[13]Kahn, L.R.: Single Sideband Transmission by Envelope Elimination and Restoration. Proc. I.R.E., 1952, 40 (7), 803806.Google Scholar
[14]Nielsen, M.; Larsen, T.: Transmitter Architecture Based on ΔΣ Modulation and Switch-Mode Power Amplification, IEEE Trans. Circuits Syst. II, 54 (8), 2007, 735739.Google Scholar
[15]Baudoin, G.; Villegas, M.; Suarez, M.; Diet, A.; Robert, F.: Performance Analysis of Multi-radio Transmitter with Polar or Cartesian Architectures associated with High Efficiency Switched-Mode Power Amplifiers. Radioengineering, proc of Czech and Slovak Technical Universities and URSI Committees, 19, 4, December 2010. ISSN 1210-2512, 470–478Google Scholar
[16]Jeong, J.; Wang, Y.E.: A Polar Delta-Sigma Modulation (PSDM) Scheme for High Efficiency Wireless Transmitters, IEEE MTT-S Int. Microwave Symp. Digest. June 2007.Google Scholar
[17]Wagh, P.; Midya, P.: High-Efficiency Switched Mode RF Power Amplifier. 42nd Midwest Symp. on Circuits and Systems, 1999, 10441047Google Scholar
[18]Raab, F.; Asbeck, P.; Cripps, S.; Kenington, P.; Popovich, Z.; Pothecary, N.; Sevic, J.; and Sokal, N.O.: RF and Microwave PA and Transmitter Technologies High Frequency Electronics, May–November 2003, 2249.Google Scholar
[19]Robert, F.; Suarez, M.; Diet, A.; Villegas, M.; Baudoin, G.: Study of a polar ΔΣ transmitter associated to a high efficiency switched mode amplifier for mobile Wimax. 10th annual IEEE Wireless and Microwave Technology Conf, WAMICON, Clearwater, FL, USA, April 2009.CrossRefGoogle Scholar
[20]Schantz, H.: Art and Science of UWB Antennas 2005 ARTECH HOUSE, INC, 685 Canton Street, Norwood, MA 02062.Google Scholar
[21]Sokal, N.; Sokal, A.: Class E, A new Class of high efficiency Tuned single ended switching PAs. IEEE J of Solid State Circuits, 10 (3), 1975, 168176.Google Scholar