A Wideband Monolithic Lossy Match Power Amplifier Having an LPF/HPF-Combined Interstage Network

Mitsuru MOCHIZUKI  Yasushi ITOH  Masatoshi NII  Tadashi TAKAGI  Yasuo MITSUI  

IEICE TRANSACTIONS on Electronics   Vol.E78-C   No.9   pp.1252-1254
Publication Date: 1995/09/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section LETTER (Special Issue on Ultra-High-Speed Electron Devices)
amplifier,  power,  wideband,  monolithic,  

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A wideband monolithic lossy match power amplifier having an LPF/HPF-combined interstage network has been developed. As an interstage network, it employs an LPF (Low-Pass Filter) including FET's drain capacitance, an HPF (High-Pass Filter) comprised of a dc blocking capacitor and a drain bias circuit, and a constant-resistance network for wideband impedance matching and transformation. With the use of this interstage network, a wide bandwidth of 6 to 16.5 GHz and an output power of 30.40.9 dBm have been achieved.