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trace length to Antenna feed point - RF Cafe Forums

Because of the high maintenance needed to monitor and filter spammers from the RF Cafe Forums, I decided that it would be best to just archive the pages to make all the good information posted in the past available for review. It is unfortunate that the scumbags of the world ruin an otherwise useful venue for people wanting to exchanged useful ideas and views. It seems that the more formal social media like Facebook pretty much dominate this kind of venue anymore anyway, so if you would like to post something on RF Cafe's Facebook page, please do.

Below are all of the forum threads, including all the responses to the original posts.


matt
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?

Thanks


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STEVE
Post subject:
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



Posted  11/12/2012
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