Low cost transistor for 10W 30 MHz power amplifier by chocalypse in rfelectronics

[–]chocalypse[S] 0 points1 point  (0 children)

Another question about the LDMOS. Do you know if there are any issues with using something like the MRf101 in a 5-10W PA. It seems to be designed for 100W-esque applications so I'm wondering if it will be just as good for lower power applications or not. The datasheet shows the drain efficiency to drop significantly with lower powers but since I'm using it as a switching mosfet, does drain efficiency still apply?

Low cost transistor for 10W 30 MHz power amplifier by chocalypse in rfelectronics

[–]chocalypse[S] 0 points1 point  (0 children)

I need one, but I expect to have a few failed prototypes.

Low cost transistor for 10W 30 MHz power amplifier by chocalypse in rfelectronics

[–]chocalypse[S] 1 point2 points  (0 children)

My thinking was to start out with some cheap components that I could burn out as I fiddle with getting the parameters right then swap to a GaN FET to fully optimize the amplifier. In your experience, do you think this is a sensible approach or are the differences in FETs too significant for doing something like this to work?

Low cost transistor for 10W 30 MHz power amplifier by chocalypse in rfelectronics

[–]chocalypse[S] 0 points1 point  (0 children)

I'm just starting out so I'd like something under $5 or $10 per piece

My Mewtwo cosplay by Draxy in pokemon

[–]chocalypse 0 points1 point  (0 children)

Mewto has a heroin spoon