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SOLT and TRL - 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: SOLT and TRL
Posted: Mon Mar 15, 2010 1:00 am 
 
Captain

Joined: Wed Jun 04, 2008 3:23 am
Posts: 11
Would it be possible to elucidate why SOLT is the preffered mode of calibration at low frequencies and TRL at higher frequencies? What is generally the more accurate mode of calibration?


 
   
 
 Post subject: Re: SOLT and TRL
Unread postPosted: Mon Mar 29, 2010 9:40 pm 
 
Site Admin
 

Joined: Sun Aug 03, 2003 2:02 pm
Posts: 308
Location: Erie, PA
Greetings shireesha:

I am not an expert on the SOLT vs. TRL calibrations, but I have read that the difficulty in making a good open circuit cal standard at really high frequencies is the reason. Here is an excerpt from "Microwave Measurements," by Richard J. Collier, A. Douglas Skinner

http://books.google.com/books?id=jhzfMLh9gFoC&pg=PA238&lpg=PA238&dq=trl+solt+calibration+preferred+frequency&source=bl&ots=VU_TafJRxF&sig=nA0YLodGT7Hbr6dIOhjdzGOP1v0&hl=en&ei=ZlWxS9WnDIL78AaQye3NAQ&sa=X&oi=book_result&ct=result&resnum=8&ved=0CCEQ6AEwBzgK#v=onepage&q=trl%20solt%20calibration%20preferred%20frequency&f=false

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 Post subject: Re: SOLT and TRL
Posted: Wed Mar 31, 2010 1:32 am 
 
Captain
 

Joined: Wed Aug 16, 2006 8:20 am
Posts: 23
Location: India
If you want to use TRL at low frequencies than the size of the calibration standard (line section) will be very large....

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Posted  11/12/2012
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