3456MHz multiplier


 


This module uses two x2 multipliers followed by a 20dB Avantek amplifier to produce about 16dBm at 3456MHz.. Each multiplier uses an overdriven NEC uPC1678 mmic feeding an 8 section printed interdigital filter etched on a 0.8mm Taconic RF-35 laminate pcb.

The amplifier runs directly off the incoming +10v rail, whilst the mmic devices are run from their own 5v on-board regulator.
3456mult


Circuit diagram

multip


Multiplier pcbs






3456multp

                         3456 MHz multiplier pcb
1728mult

                    1728 MHz multiplier pcb

Output-spectrum
                


spectrum