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SOLT and TRL - RF Cafe Forums

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shireesha

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?

Kirt Blattenberger

Post subject: Re: SOLT and TRL

Posted: 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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RF Cafe Progenitor & Webmaster

ashishbondia

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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Ashish Bondia,

Design Engineer- RF

Posted 11/12/2012


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