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UHF Antenna Shielding - 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.

 Post subject: UHF Antenna Shielding
Posted: Fri Nov 18, 2005 8:29 am 
Im currently developing a system that will use two horizontally polarized recieving antennas roof mounted on a car. What i want to do is have one antenna recieving from the front and the other receiving from the rear on the car. So i intend to apply shielding to the rear sections of each antenna to isolate the reception to front and rear. I am recieving at UHF 868 mHz, does anyone have any recommendations as to what shileding materials to use?
Many Thanks
Matthew Webster

 Post subject:
Posted: Fri Nov 25, 2005 5:13 am 

Joined: Thu Nov 24, 2005 2:40 am
Posts: 3
Hey dude,

I assume from the post you made a little later, that you don't want your car to look like it has a billboard on the roof! what I would suggest (please note I am a bit new to the RF game and more than a little daft) is to use a mesh type screen between the two antennas, which you should be able to get from your local hardware store. however what may work better is a type of repeater setup, where instead of using one antenna for transmit and recieve, use two, but switch between the two of them.

Hope that helps!

Posted  11/12/2012

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