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Sometimes you get specifications from datasheets of your IC components. otherwise, go with some basics. Isolate high speed lines, by shielding them with pours and stitches of vias. proper ground referencing is a must. shortest trace possible, sometimes i do curve tracks on highspeed. tracelength matching is a must. must do impedance control. if it is really critical and you have the budget, back drill your vias for highspeed, to minimize stubs. seems like you will opt for a rogers material of some sort.
Dear Mr alizadeharand
Hi
At these high frequencies , we will have many specific laws. and they depends on your out put power. describe about your out put power , and impedance ,thus i can help you.
Best Wishes
Goldsmith
Dear alizadeharand
Again Hi
The filtering at that frequency is very simple. ( because , the noises can not mix with that high frequency completely ) and with a simple filter you can improve that ( for example a combline filter) .( with the lines of your pcb) . and about the out put voltage that , you said , it is important , but not at first step . your power is more important ( because , at plb lines design , you should consider your max power) . ( remember that at the high frequencies , the skin effect has bad effect on characteristics of your circuit.)
Respectfully
Goldsmith
Hello my friend
At RF frequencies , the DC supply , has , high frequency , current . and it is very important , and unfortunately , it is the reason of some problems , at RF circuits . you should pay attention to that . when i designed a class D amplifier , with 400KHZ carrier frequency , the distance , between the DC voltage , and my mosfets , was not far , but was not very near . and my wave form destroyed , and when i improved my PCB , its behavior , was wonderful. i said , these things , not for fun , i said , them , because , i want to demonstrate , you , that at , the frequencies , lower than your frequency , a simple careless behavior , will destroy , the quality of circuit . Though , what do you thing about your higher frequency?
Best Wishes
Goldsmith
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