Cascaded distributed power amplifier with non-identical transistors and inter-stage tapered impedance

Narendra, K. and Limiti, E. and Paoloni, C. and Collantes, J.-M. and Jansen, R.H. (2010) Cascaded distributed power amplifier with non-identical transistors and inter-stage tapered impedance. In: Microwave Conference (EuMC), 2010 European. IEEE, 990 -993. ISBN 978-1-4244-7232-1

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Abstract

A concept technique of cascaded distributed power amplifier (DPA) with non-identical transistors and controlled inter-stage tapered impedance for wideband applications is presented. The topology solves the gain peaking effect (expansion) at cut-off frequency and guarantees sufficient stability margins. The advantages of the proposed technique are explored analytically before prototype fabrication. At measurement level, 10 W output power, 32 dB gain and PAE (power-aided-efficiency) in excess of 15% are recorded from 70-2000 MHz. A good agreement between simulations and measurements was obtained.

Item Type:
Contribution in Book/Report/Proceedings
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/ta
Subjects:
ID Code:
56744
Deposited By:
Deposited On:
17 Aug 2012 13:50
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 05:34