sqx
Member level 1
I'm trying to design a microstrip line based single balanced RF mixer using 90° hybrid and 2 schottky diodes.
In this picture, is that matching network going to match the diodes to 50 ohms? I did it in my ADS simulation, but I found that the signal from one diode branch, which makes my isolation between RF an LO very bad. Just as the figure shows below.
How can I fix this problem?
This is a design I found from the internet. What does RFC do? And what do the networks after the diodes C,D and E do?
These problems confused me for a long time. It'll be really nice if someone here can help me with them
In this picture, is that matching network going to match the diodes to 50 ohms? I did it in my ADS simulation, but I found that the signal from one diode branch, which makes my isolation between RF an LO very bad. Just as the figure shows below.
How can I fix this problem?
This is a design I found from the internet. What does RFC do? And what do the networks after the diodes C,D and E do?
These problems confused me for a long time. It'll be really nice if someone here can help me with them