artikk
Newbie level 3
Hello,
I need advice for two projects. I'm new to designing high power RF circuits.
I'm designing a directional coupler in stripline at f0= 638 MHz. The input port will be handling 300 W. The PCB board used will be RO4003C. I've used the Rogers Impedance Calculator on their website and am getting high temperature increases(40 C +) from ambient temp at that input power range. Is there something I'm missing in my design or is regular stripline not designed for high power like this?
I'm also designing an LPF in microstrip operating at 600 W. Same question applies as well. Am I better off using something else or can I negate the temperature rises with heatsinks placed on the ground planes for both designs?
Thanks
I need advice for two projects. I'm new to designing high power RF circuits.
I'm designing a directional coupler in stripline at f0= 638 MHz. The input port will be handling 300 W. The PCB board used will be RO4003C. I've used the Rogers Impedance Calculator on their website and am getting high temperature increases(40 C +) from ambient temp at that input power range. Is there something I'm missing in my design or is regular stripline not designed for high power like this?
I'm also designing an LPF in microstrip operating at 600 W. Same question applies as well. Am I better off using something else or can I negate the temperature rises with heatsinks placed on the ground planes for both designs?
Thanks