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PHEMT distributed power amplifier adopting broadband impedance transformer

Research output: Contribution to journalJournal article


<mark>Journal publication date</mark>2013
<mark>Journal</mark>Microwave Journal
Number of pages7
Pages (from-to)76-82
<mark>Original language</mark>English


A non-uniform drain line distributed power amplifier (DPA) employing a broadband impedance transformer is presented. The DPA is based on GaAs PHEMT technology. The impedance transformer employs asymmetric coupled lines and transforms a low output impedance of the amplifier to a standard
50 ohm transmission line. The output power of approximately 600 mW, with an associated gain of 9 dB and PAE greater than 30 percent, is demonstrated in the frequency range from 10 to 1800 MHz.