28-08-2017, 11:54 AM
Hi All, I have been playing at using cell phone LDMOS fets at 23 cm. After much work I have built 2 prototype amps that work well.
The design is based on a couple of designs from Europe and is on Rogers 4003C board.
The results so far. 1.5 watts of drive produces 150 to 160 watts and out saturated at about 170 watts with a bit more drive.
Running the amp at 28 volts produces good gain and output power at about 9 amps. note the gain is 20 dB !!
Its very pleasing to get good results from a project.
cheers Ralph VK3WRE
The design is based on a couple of designs from Europe and is on Rogers 4003C board.
The results so far. 1.5 watts of drive produces 150 to 160 watts and out saturated at about 170 watts with a bit more drive.
Running the amp at 28 volts produces good gain and output power at about 9 amps. note the gain is 20 dB !!
Its very pleasing to get good results from a project.
cheers Ralph VK3WRE