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Power Amplifier Fundamentals: Classes

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Linear CMOS RF Power Amplifiers

Abstract

This chapter analyzes the different PA operation modes. The different PA classes are traditionally classified into two main groups: current source amplifiers, which comprises classes A to C, and switch-type amplifiers, which make up classes E and D. The class F PA is treated separately as it falls between current source and switch-type amplifiers. The following sections describe each operation mode in detail.

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References

  1. Cripps SC (1999) RF Power Amplifiers for Wireless Communications. Artech House, Norwood

    Google Scholar 

  2. Kwon DH, Hao L, Yuchun C, Tseng R, Yun C (2010) Digitally Equalized CMOS Transmitter Front-End With Integrated Power Amplifier. IEEE J Solid-State Circ 45(8):1602–1614

    Article  Google Scholar 

  3. Nuyts PAJ, Francois B, Dehaene W, Reynaert P (2012) A CMOS Burst-Mode Transmitter With Watt-Level RF PA and Flexible Fully Digital Front-End. IEEE Trans Circ Syst II: Exp Briefs 59(10):613–617

    Article  Google Scholar 

  4. Qing L, Sun J, YongJu S, Horie K, Itoh N, Yoshimasu T (2011) A high efficiency and high linearity power amplifier utilizing post-linearization technique for 5.8 GHz DSRC applications. In: IEEE topical conf power amplifiers for wireless and radio applications (PAWR 2011), pp 45–48

    Google Scholar 

  5. Yongwang D, Harjani R (2005) A high-efficiency CMOS +22-dBm linear power amplifier. IEEE J Solid-State Circ 40(9):1895–1900

    Article  Google Scholar 

  6. Jian F, Shilei H, Yumei H, Zhiliang H (2010) A 2.4G-Hz CMOS power amplifier. In: IEEE international conference solid-state and integrated circuit technology (ICSICT 2010), pp 659–661

    Google Scholar 

  7. Natarajan K, Walling JS, Allstot DJ (2011) A class-C power amplifier/antenna interface for wireless sensor applications. In: IEEE radio frequency integrated circuits symposium (RFIC 2011), pp 1–4

    Google Scholar 

  8. Gupta R, Ballweber BM, Allstot DJ (2001) Design and optimization of CMOS RF power amplifiers. IEEE J Solid-State Circ 36(2):166–175

    Article  Google Scholar 

  9. Elmala M, Paramesh J, Soumyanath K (2006) A 90-nm CMOS Doherty power amplifier with minimum AM-PM distortion. IEEE J Solid-State Circ 41(6):1323–1332

    Article  Google Scholar 

  10. Kang J, Daekyu Y, Kyoungjoon M, Kim B (2006) A ultra-high PAE Doherty amplifier based on 0.13-mm CMOS process. IEEE Microw Wireless Compon Lett 16(9):505–507

    Google Scholar 

  11. Li-Yuan Y, Hsin-Shu C, Yi-Jan C (2008) A 2.4 GHz fully integrated cascode-cascade CMOS Doherty power amplifier. IEEE Microw Wireless Compon Lett 18(3):197–199

    Google Scholar 

  12. Wongkomet N, Tee L, Gray PR (2006) A +31.5 dBm CMOS RF Doherty power amplifier for wireless communications. IEEE J Solid-State Circ 41(12):2852–2859

    Google Scholar 

  13. Kaymaksut E, Reynaert P (2012) Transformer-based uneven Doherty power amplifier in 90 nm CMOS for WLAN applications. IEEE J Solid-State Circ 47(7):1659–1671

    Article  Google Scholar 

  14. Chen YJE, Chih-Yun L, Tang-Nian L, Heo D (2006) A high-efficient CMOS RF power amplifier with automatic adaptive bias control. IEEE Microw Wireless Compon Lett 16(11):615–617

    Article  Google Scholar 

  15. Albulet M (2001) RF power amplifiers. Noble Publishing, Atlanta

    Google Scholar 

  16. Guanziroli F, Bassoli R, Crippa C, Devecchi D, Nicollini G (2012) A 1 W 104 dB SNR filter-less fully-digital open-loop Class D audio amplifier with EMI reduction. IEEE J Solid-State Circ 47(3):686–698

    Article  Google Scholar 

  17. Dooper L, Berkhout M (2012) A 3.4 W digital-in Class-D audio amplifier in 0.14 mm CMOS. IEEE J Solid-State Circ 47(7):1524–1534

    Google Scholar 

  18. Torres J, Colli-Menchi A, Rojas-Gonzalez MA, Sanchez-Sinencio E (2011) A low-power high-PSRR clock-free current-controlled Class-D audio amplifier. IEEE J Solid-State Circ 46(7):1553–1561

    Article  Google Scholar 

  19. Jingxue L, Gharpurey R (2011) Design and analysis of a self-oscillating Class D audio amplifier employing a hysteretic comparator. IEEE J Solid-State Circ 46(10):2336–2349

    Article  Google Scholar 

  20. Teplechuk MA, Gribben T, Amadi C (2011) True filterless Class-D audio amplifier. IEEE J Solid-State Circ 46(12):2784–2793

    Article  Google Scholar 

  21. Tsai-Pi H, Choi DK, Larson LE, Asbeck PM (2007) CMOS outphasing Class-D amplifier with chireix combiner. IEEE Microw Wireless Compon Lett 17(8):619–621

    Article  Google Scholar 

  22. Wei T, Hongtao X, Ravi A, Lakdawala H, Bochobza-Degani O, Carley LR, Palaskas Y (2012) A transformer-combined 31.5 dBm outphasing power amplifier in 45 nm LP CMOS with dynamic power control for back-off power efficiency enhancement. IEEE J Solid-State Circ 47(7):1646–1658

    Google Scholar 

  23. Landin PN, Fritzin J, Van Moer W, Isaksson M, Alvandpour A (2012) Modeling and digital predistortion of Class-D outphasing rf power amplifiers. IEEE Trans Microw Theory Techn 60(6):1907–1915

    Article  Google Scholar 

  24. Hongtao X, Palaskas Y, Ravi A, Sajadieh M, El-Tanani MA, Soumyanath K (2011) A flip-chip-packaged 25.3 dBm Class-D outphasing power amplifier in 32 nm CMOS for WLAN application. IEEE J Solid-State Circ 46(7):1596–1605

    Google Scholar 

  25. Sungho L, Sangwook N (2010) A CMOS Outphasing Power Amplifier With Integrated Single-Ended Chireix Combiner. IEEE Trans Circ Syst II: Exp Briefs 57(6):411–415

    Article  Google Scholar 

  26. Fritzin J, Jung Y, Landin PN, Handel P, Enqvist M, Alvandpour A (2011) Phase predistortion of a Class-D outphasing RF amplifier in 90 nm CMOS. IEEE Trans Circ Syst II: Exp Briefs 58(10):642–646

    Article  Google Scholar 

  27. Ravi A, Madoglio P, Hongtao X, Chandrashekar K, Verhelst M, Pellerano S, Cuellar L, Aguirre-Hernandez M, Sajadieh M, Zarate-Roldan JE, Bochobza-Degani O, Lakdawala H, Palaskas Y (2012) A 2.4-GHz 20–40-MHz channel WLAN digital outphasing transmitter utilizing a delay-based wideband phase modulator in 32-nm CMOS. IEEE J Solid-State Circ 47(12):3184–3196

    Google Scholar 

  28. Chowdhury D, Lu Y, Alon E, Niknejad AM (2011) An efficient mixed-signal 2.4-GHz polar power amplifier in 65-nm CMOS technology. IEEE J Solid-State Circ 46(8):1796–1809

    Google Scholar 

  29. Nakatani T, Rode J, Kimball DF, Larson LE, Asbeck PM (2012) Digitally-controlled polar transmitter using a watt-class current-mode Class-D CMOS power amplifier and guanella reverse balun for handset applications. IEEE J Solid-State Circ 47(5):1104–1112

    Article  Google Scholar 

  30. Sang-Min Y, Walling JS, Eum-Chan W, Jann B, Allstot DJ (2011) A switched-capacitor RF power amplifier. IEEE J Solid-State Circ 46(12):2977–2987

    Article  Google Scholar 

  31. Jian C, Liang R, Jonsson F, Geng Y, Li-Rong Z (2012) The design of all-digital polar transmitter based on ADPLL and phase synchronized ΔΣ modulator. IEEE J Solid-State Circ 47(5):1154–1164

    Article  Google Scholar 

  32. Reynaert P, Steyaert M (2006) RF power amplifiers for mobile communications. Springer, The Netherlands

    Google Scholar 

  33. Stauth JT, Sanders SR (2008) A 2.4 GHz, 20dBm Class-D PA with single-bit digital polar modulation in 90 nm CMOS. In: IEEE custom integrated circuits conference (CICC 2008) pp 737–740

    Google Scholar 

  34. Sokal NO, Sokal AD (1975) Class E-A new class of high-efficiency tuned single-ended switching power amplifiers. IEEE J Solid-State Circ 10(3):168–176

    Article  Google Scholar 

  35. Lee TH (2004) The design of CMOS radio-frequency integrated circuits. Cambridge University Press, United Kingdom

    Google Scholar 

  36. Acar M, Annema AJ, Nauta B (2007) Variable-voltage Class-E power amplifiers. In: IEEE MTT-S international microwave symposium digital (IMS 2007), pp 1095–1098

    Google Scholar 

  37. Zhisheng L, Torfs G, Bauwelinck J, Xin Y, Vandewege J, Van Praet C, Spiessens P, Tubbax H, Stubbe F (2012) A 2.45-GHz + 20-dBm fast switching Class-E power amplifier with 43% PAE and a 18-dB-wide power range in 0.18-μm CMOS. IEEE Trans Circ Syst II: Exp. Briefs 59(4):224–228

    Google Scholar 

  38. Lee O, An KH, Kim H, Lee DH, Han J, Yang KS, Lee CH, Kim H, Laskar J (2010) Analysis and design of fully integrated high-power parallel-circuit Class-E CMOS power amplifiers. IEEE Trans Circ Syst I: Reg Pap 57(3):725–734

    Article  MathSciNet  Google Scholar 

  39. Muh-Dey W, Kalim D, Erguvan D, Sheng-Fuh C, Negra R (2012) Investigation of wideband load transformation networks for Class-E switching-mode power amplifiers. IEEE Trans Microw Theory Techn 60(6):1916–1927

    Article  Google Scholar 

  40. Apostolidou M, Van der Heijden MP, Leenaerts DMW, Sonsky J, Heringa A, Volokhine I (2009) A 65 nm CMOS 30 dBm Class-E RF power amplifier with 60% PAE and 40% PAE at 16 dB back-off. IEEE J Solid-State Circ 44(5):1372–1379

    Article  Google Scholar 

  41. Changkun P, Jeonghu H, Haksun K, Songcheol H (2008) A 1.8-GHz CMOS power amplifier using a dual-primary transformer with improved efficiency in the low power region. IEEE Trans Microw Theory Techn 56(4):782–792

    Google Scholar 

  42. Yonghoon S, Sungho L, Cho E, Jaejun L, Sangwook N (2010) A CMOS Class-E power amplifier with voltage stress relief and enhanced efficiency. IEEE Trans Microw Theory Techn 58(2):310–317

    Article  Google Scholar 

  43. Brama R, Larcher L, Mazzanti A, Svelto F (2008) A 30.5 dBm 48% PAE CMOS Class-E PA with integrated balun for RF applications. IEEE J Solid-State Circ 43(8):1755–1762

    Google Scholar 

  44. Sira D, Thomsen P, Larsen T (2010) Output power control in Class-E power amplifiers. IEEE Microw Wireless Compon Lett 20(4):232–234

    Article  Google Scholar 

  45. Dong-Ho L, Changkun P, Jeonghu H, Kim Y, Songcheol H, Chang-Ho L, Laskar J (2008) A load-shared CMOS power amplifier with efficiency boosting at low power mode for polar transmitters. IEEE Trans Microw Theory Techn 56(7):1565–1574

    Article  Google Scholar 

  46. Hongtak L, Changkun P, Songcheol H (2009) A quasi-four-pair Class-E CMOS RF power amplifier with an integrated passive device transformer. IEEE Trans Microw Theory Techn 57(4):752–759

    Article  Google Scholar 

  47. Godoy PA, SungWon C, Barton TW, Perreault DJ, Dawson JL (2012) A 2.4-GHz, 27-dBm asymmetric multilevel outphasing power amplifier in 65-nm CMOS. IEEE J Solid-State Circ 47(10):2372–2384

    Google Scholar 

  48. Reynaert P, Steyaert MSJ (2005) A 1.75-GHz polar modulated CMOS RF power amplifier for GSM-EDGE. IEEE J Solid-State Circ 40(12):2598–2608

    Google Scholar 

  49. Walling JS, Taylor SS, Allstot DJ (2009) A Class-G supply modulator and Class-E PA in 130 nm CMOS. IEEE J Solid-State Circ 44(9):2339–2347

    Article  Google Scholar 

  50. Singhal N, Pamarti S (2010) A digital envelope combiner for switching power amplifier linearization. IEEE Trans Circ Syst II: Exp Briefs 57(4):270–274

    Article  Google Scholar 

  51. Walling JS, Lakdawala H, Palaskas Y, Ravi A, Degani O, Soumyanath K, Allstot DJ (2009) A Class-E PA with pulse-width and pulse-position modulation in 65 nm CMOS. IEEE J Solid-State Circ 44(6):1668–1678

    Article  Google Scholar 

  52. Raab FH (2001) Maximum efficiency and output of class-F power amplifiers. IEEE Trans Microw Theory Techn 49(6):1162–1166

    Article  Google Scholar 

  53. Huang Min Z, A’’ain AKB, Kordesch AV (2007) Two stage integrated Class-F RF power amplifier. In: Int symposium integrated circuits (ISIC 2007), pp 108–110

    Google Scholar 

  54. Carls J, Ellinger F, Joerges U, Krcmar M (2009) Highly-efficient CMOS C-band Class-F power amplifier for low supply voltages. IET Electron Lett 45(24):1240–1241

    Article  Google Scholar 

  55. Fortes F, do Rosario MJ (2001) A second harmonic Class-F power amplifier in standard CMOS technology. IEEE Trans Microw Theory Techn 49(6):1216–1220

    Google Scholar 

  56. Hsien-Yuan L, Jhih-Hong C, Hwann-Kaeo C, Shin-Ming W (2009) Harmonic control network for 2.6 GHz CMOS Class-F power amplifier. In: IEEE international symposium circuits and systems (ISCAS 2009), pp 1321–1324

    Google Scholar 

  57. Kuo TC, Lusignan BB (2001) A 1.5 W class-F RF power amplifier in 0.2 mm CMOS technology. In: IEEE international digital technology papers solid-state circuits conference (ISSCC 2001), pp 154–155, 442

    Google Scholar 

  58. Shirvani A, Su DK, Wooley BA (2002) A CMOS RF power amplifier with parallel amplification for efficient power control. IEEE J Solid-State Circ 37(6):684–693

    Article  Google Scholar 

  59. Hamedi-Hagh S, Salama CAT (2004) CMOS wireless phase-shifted transmitter. IEEE J Solid-State Circ 39(8):1241–1252

    Article  Google Scholar 

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Authors and Affiliations

  1. Estudios e Investigaciones Técnicas, Electronics and Communication Department, University of Navarra, Pº Mikeletegi 48, 2009, San Sebastian, Spain

    Hector Solar Ruiz & Roc Berenguer Pérez

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  1. Hector Solar Ruiz
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  2. Roc Berenguer Pérez
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Correspondence to Hector Solar Ruiz .

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Solar Ruiz, H., Berenguer Pérez, R. (2014). Power Amplifier Fundamentals: Classes. In: Linear CMOS RF Power Amplifiers. Springer, Boston, MA. https://doi.org/10.1007/978-1-4614-8657-2_3

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  • DOI: https://doi.org/10.1007/978-1-4614-8657-2_3

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