I always liked the HP/Agilent 355 Step Attenuators. Now with Kicad and low cost PCB fabrication I thought I should just design my own. The attenuator uses BNC connector rather than SMA beause I like the quick disconnet feature. The design is base on 1 watt resistors so that the power limit. Total Attenuation is 62DB in 1 DB steps.
The project is complete and has be verifyed with a Rigol DSA816 spectrum analyer from 1MHz to 30MHz.
This project was designed with Kicad 7.X