UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

G6Tanuki · 11th Oct 2019, 5:59 pm

I'd definitely consider a 'wideband' termination on the load: in professional applications of these sorts of devices it's quite common to see a pi-section 3dB resistive 'pad' included on the output-port so the MMIC does not see a significantly-reactive output-load at any point across the frequency-range at which it has gain.

Remember that every amplifier is an oscillator that hasn't -yet- worked out how to achieve its destiny!

11th Oct 2019, 5:59 pm	#8
G6Tanuki Dekatron Join Date: Apr 2012 Location: Wiltshire, UK. Posts: 13,998	Re: Wide band RF amp I'd definitely consider a 'wideband' termination on the load: in professional applications of these sorts of devices it's quite common to see a pi-section 3dB resistive 'pad' included on the output-port so the MMIC does not see a significantly-reactive output-load at any point across the frequency-range at which it has gain. Remember that every amplifier is an oscillator that hasn't -yet- worked out how to achieve its destiny!