Skip to main content Accessibility help
×
×
Home

Front-end HPA/antenna for multi-radio

  • Antoine M. Diet (a1), Nicolas Ribière-Tharaud (a2), Martine Villegas (a3) and Geneviève Baudoin (a3)
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.

Copyright
Corresponding author
Corresponding author: A. Diet Email: antoine.diet@lss.supelec.fr
References
Hide All
[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.
[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.
[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.
[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.
[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.
[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.
[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.
[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.
[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.
[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.
[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.
[12]Grebennikov, A.: Class E high efficiency PA: Historical aspects and prospects. Appl. Microw. Wirel., 07, 2002, 6471.
[13]Kahn, L.R.: Single Sideband Transmission by Envelope Elimination and Restoration. Proc. I.R.E., 1952, 40 (7), 803806.
[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.
[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, 470–478
[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.
[17]Wagh, P.; Midya, P.: High-Efficiency Switched Mode RF Power Amplifier. 42nd Midwest Symp. on Circuits and Systems, 1999, 10441047
[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.
[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.
[20]Schantz, H.: Art and Science of UWB Antennas 2005 ARTECH HOUSE, INC, 685 Canton Street, Norwood, MA 02062.
[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.
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

International Journal of Microwave and Wireless Technologies
  • ISSN: 1759-0787
  • EISSN: 1759-0795
  • URL: /core/journals/international-journal-of-microwave-and-wireless-technologies
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Keywords

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed