Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-18T10:46:12.312Z Has data issue: false hasContentIssue false
  • English
  • Français

Concurrent dual-band envelope tracking GaN PA design and its 2D shaping function characterization

Published online by Cambridge University Press:  19 August 2013

Alessandro Cidronali ,
Niccolò Giovannelli ,
Massimiliano Mercanti ,
Stefano Maddio  and
Gianfranco Manes
Alessandro Cidronali*
Affiliation:
Department of Information Engineering, V. S. Marta, 3, I-50139 Florence, Italy
Niccolò Giovannelli
Affiliation:
Infineon Technologies AG Neubiberg, Am Campeon 1-12, 85579 Neubiberg, Germany
Massimiliano Mercanti
Affiliation:
Nujira, Ltd., Cambourne Business Park, Cambridge CB23 6DP, UK
Stefano Maddio
Affiliation:
Department of Information Engineering, V. S. Marta, 3, I-50139 Florence, Italy
Gianfranco Manes
Affiliation:
Department of Information Engineering, V. S. Marta, 3, I-50139 Florence, Italy
*
Corresponding author: A. Cidronali Email: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

This paper presents the design of a high-power dual-band power amplifier (PA) for envelope tracking (ET) operation and its characterization in concurrent dual-band ET operation modes. The design approach relies on the specific actual signal probability distribution and the prototype was conceived for the WCDMA 3GPP DL signals. The paper discusses the impact of the ET-shaping function influence on the linearity versus mean efficiency trade-off, for both single and concurrent dual-band cases. The technique was applied to a concurrent 870 and 2140 MHz ET-PA designed around a GaN HEMT device. The ET friendly design method led to performance very close to those observed at each single band. Over a bandwidth of 100 MHz and for PAR = 6.5 dB, the measured results reported a mean DE better than 71 and 54%, with a peak power higher than 55 and 54 dBm, at the two frequency bands, respectively. When evaluated in concurrent dual-band mode with two WDCMA signals at 6.5 dB PAR each, the ET-PA exhibited an estimated average total power of 49.5 dBm with 57.1% average drain efficiency.

Keywords

Power amplifiers and linearizersCircuit design and applications
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 5 , Issue 6 , December 2013 , pp. 669 - 681
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2013 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1]Kim, B.; Moon, J.; Kim, I.: Efficiently amplified. IEEE Microw. Mag., 11 (5) (2010), 87–100.Google Scholar
[2]Bathich, K.; Markos, A.Z.; Boeck, G.: Frequency response analysis and bandwidth extension of the Doherty amplifier. IEEE Trans. Microw. Theory Tech., 59 (4) (2011), 934–944.Google Scholar
[3]Carrubba, V. et al. : On the extension of the continuous class-f mode power amplifier. IEEE Trans. Microw. Theory Tech., 59 (5) (2011), 1294–1303.CrossRefGoogle Scholar
[4]Feipeng, W.; Yang, A.H.; Kimball, D.F.; Larson, L.E.; Asbeck, P.M.: Design of wide-bandwidth envelope-tracking power amplifiers for OFDM applications. IEEE Trans. Microw. Theory Tech., 53 (4) (2005), 1244–1255.Google Scholar
[5]Choi, J.; Kang, D.; Kim, D.; Kim, B.: Optimized envelope tracking operation of Doherty power amplifier for high efficiency over an extended dynamic range. IEEE Trans. Microw. Theory Tech., 57 (6) (2009), 1508–1515.Google Scholar
[6]Yan, L. et al. : Circuits and system design of RF polar transmitters using envelope-tracking and SiGe power amplifiers for mobile WiMAX. IEEE Trans. Circuits Syst. I: Reg. Pap., 58 (2011), 893–901.Google Scholar
[7]Ghannouchi, F.M.; Hatami, S.; Aflaki, P.; Helaoui, M.; Negra, R.: Accurate power efficiency estimation of GHz wireless delta-sigma transmitters for different classes of switching mode power amplifiers. IEEE Trans. Microw. Theory Tech., 58 (11) (2010), 2812–2819.Google Scholar
[8]Sen, S.; Senguttuvan, R.; Catterijee, A.: Environment-adaptive concurrent companding and bias control for efficient power-amplifier operation. IEEE Trans. Circuit Syst. I, Reg. Pap., 58 (3) (2011), 607–618.Google Scholar
[9]Negra, R.; Sadeve, A.; Bensmida, S.; Ghannouchi, F.M.: Concurrent dual-band class-F load coupling network for applications at 1.7 and 2.14 GHz. IEEE Trans. Circuits Syst.II, Express Briefs, 55 (3) (2008), 259–263.Google Scholar
[10]Cidronali, A.; Giovannelli, N.; Vlasits, T.; Hernaman, R.; Manes, G.: A 240W dual-band 870 and 2140 MHz envelope tracking GaN PA designed by a probability distribution conscious approach, in IEEE MTT-S Int. Microwave Symp. Digest, Baltimore, MD, June 2011.Google Scholar
[11]Fagotti, R.; Cidronali, A.; Manes, G.: Concurrent Hex-band GaN power amplifier for wireless communication systems. IEEE Microw. Wirel. Comp. Lett., 21 (2011), 89–91.Google Scholar
[12]Cidronali, A.; Zucchelli, F.; Maddio, S.; Giovannelli, N.; Manes, G.: Bi-dimensional shaping function in concurrent dual band GaAs envelope tracking power amplifier, in 2012 IEEE Topical Conf. on Power Amplifiers for Wireless and Radio Applications (PAWR), 15–18 January 2012, 29–32.CrossRefGoogle Scholar
[13]Cidronali, A.; Mercanti, M.; Giovannelli, N.; Maddio, S.; Manes, G.: On the signal probability distribution conscious characterization of GaN devices for optimum envelope tracking PA design. IEEE Microw. Wirel. Compon. Lett., 23 (2013), 380–382.Google Scholar
[14]Cripps, S.C.: RF Power Amplifiers for Wireless Communications, Artech House, Norwood, MA, 1999.Google Scholar
[15]Jeong, J.; Kimball, D.F.; Kwak, M.; Chin, H.; Draxler, P.; Asbeck, P.M.: Wideband envelope tracking power amplifiers with reduced bandwidth power supply waveforms and adaptive digital predistortion techniques. IEEE Trans. Microw. Theory Tech., 57 (12) (2009), 3307–3314.Google Scholar
[16]Montoro, G.; Gilabert, P.L.; Vizarreta, P.; Bertran, E.: Slew-rate limited envelopes for driving envelope tracking amplifiers, in 2011 IEEE Topical Conf. on Power Amplifiers for Wireless and Radio Applications (PAWR), 16–19 January 2011, 17–20.Google Scholar
[17]Hoversten, J.; Popovic, Z.: Envelope tracking transmitter system analysis method, in 2010 IEEE Radio and Wireless Symp. (RWS), 10–14 January 2010, 180–183.Google Scholar
[18]Bassam, S.A.; Helaoui, M.; Ghannouchi, F.M.: 2-D digital predistortion (2-D-DPD) architecture for concurrent dual-band transmitters. IEEE Trans. Microw. Theory Tech, 59 (2011), 2547–2553.Google Scholar