md00043
Newbie level 1
single balanced mixers
Hello,
I need to design and fabricate a single balanced rat- race mixer with two schottky diodes. The down conversion is from 2.5GHz to 100 MHz. I have already got the hybrid ring to work. I have a couple of problems.
How do i simulate the hybrid ring along with the diodes on ADS schematic? I know that we need to use harmony balance, but i dont know how to set it up.
How are we supposed to do matching networks for the diodes if they are self-biased. How can we determine the equivalent model of the diodes if we dont know the dc current flowing through the diodes. We need the equivalent model of the diodes to do input match!
I really need help fast!!!
Thanks
Hello,
I need to design and fabricate a single balanced rat- race mixer with two schottky diodes. The down conversion is from 2.5GHz to 100 MHz. I have already got the hybrid ring to work. I have a couple of problems.
How do i simulate the hybrid ring along with the diodes on ADS schematic? I know that we need to use harmony balance, but i dont know how to set it up.
How are we supposed to do matching networks for the diodes if they are self-biased. How can we determine the equivalent model of the diodes if we dont know the dc current flowing through the diodes. We need the equivalent model of the diodes to do input match!
I really need help fast!!!
Thanks
