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High bandwidth current mode amplifier for envelope modulated RF amplifiers

High bandwidth current mode amplifier for envelope modulated RF amplifiers

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A high bandwidth discrete current mode amplifier capable of driving large voltages into low impedances is presented. A differential current mirror output stage ensures stability at high frequencies. Small signal bandwidth is 24 MHz and large signal bandwidth extends into the megahertz region. When amplifying the AC component of a 3 MHz 3rd generation partnership project (3GPP) long term evolution (LTE) envelope signal, an efficiency of 19.1% is achieved at 18.8 V peak-to-peak output across a 15 Ω load.

References

    1. 1)
      • 3GPP LTE Homepage, ‘http://www.3gpp.org/article/lte’.
    2. 2)
      • Grace, D., Jingxin, J.T., Mitchell, P.D.: `Using cognitive radio to deliver ‘green’ communications', 4thInt. Conf. on Cognitive Radio Oriented Wireless Networks and Communications, June 2009, Hannover, Germany, p. 1–6.
    3. 3)
      • L.R. Kahn . Single-sideband transmission by envelope elimination and restoration. Proc. Inst. Radio Electron. Eng. , 7 , 803 - 806
    4. 4)
      • Zhou, J., Wang, L., Morris, K.: `Wideband envelope modulator design for wideband power amplifiers', European Conf. on Wireless Technology, October 2008, Amsterdam, The Netherlands, p. 258–261.
    5. 5)
      • Talonen, M., Lindfors, S.: `Split-band supply modulator for OFDM polar transmitter: filter design', 18thEuropean Conf. on Circuit Theory and Design, August 2007, Seville, Spain, p. 587–590.
    6. 6)
      • Texas Instruments BUF634 datasheet available at www.ti.com.
    7. 7)
      • Cirrus Logic PA119 datasheet available from www.cirrus.com.
    8. 8)
      • W. Jager , E. Ven , E. And Tuyl . A new class-AB design. Electron. World , 1764 , 982 - 987
    9. 9)
      • C. Toumazou , F.J. Lidgey , M. Yang . Translinear class AB current amplifier. Electron. Lett. , 13 , 873 - 874
    10. 10)
      • On Semiconductors datasheet for MJE15034 (NPN) and MJE15035 (PNP) transistors available at www.onsemi.com.
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