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NATIONAL Instruments (NI) will sponsor a webinar about the Doherty power amplifier (DPA), charting the history of this component and the latest work on it.
The webinar will be presented by power amplifier design expert Dr Steve Cripps on 9 March 2016, at 8am Pacific Time.
The Dohert amplifier was invented by William H Doherty of Bell Telephone Laboratories in 1936, making for an 80 year history this year. A modified class B radio frequency amplifier, it was operated as a linear amplifier with a modulated driver.
The amplifier continues to involve, as digital controls increasingly intrudes into the synthesis of complex digitally-modulated communications signals.
Dr Cripps will chart the reinvention of the Doherty power amplifier during the first decade of mobile communications, and the efforts to improve its weaknesses, particularly in linearity and bandwidth.
For more details and to register, click here.