trace length to Antenna feed point - RF Cafe Forums
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Post subject: trace length to Antenna feed point.
Unread postPosted: Tue Jan 18, 2005 9:42 am
Is the trace length between 50ohm balun and a 50 ohm ceramic patch antenna @2.4GHz critical? The design is CPW Ground with Width = Gap=0.2mm.
Providing I maintain the 50ohm trace in between, does the actual trace lengths matters? Should I avoid 0.25Wavelengths?
Unread postPosted: Tue Jan 18, 2005 1:12 pm
If the whole thing were lossless and perfectly matched then it doesnt matter. We know this is not going to be true and you have two problems:-
1. Losses on the trace which will increase with length
2. Radiation from / Susceptibility of trace
Suck it and see