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    Kirt Blattenberger,


RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while tying up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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RF design flow - RF Cafe Forums

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Post subject: RF design flow Posted: Thu Apr 27, 2006 12:13 pm


Joined: Tue Feb 21, 2006 2:00 pm
Posts: 1
Hi gurus, Is there some resource on the web I can use to learn more about the RF development flow? Basically I'm interested in knowing more about system level analysis using excel or some kind of simulation tools without getting too detailed into the circuit matching and layout. Is there any future in doing this? My background is in DSP and wireless communications simulation. Thanks.


Post subject: Posted: Fri Apr 28, 2006 5:17 am

Site Admin

Joined: Mon Jun 27, 2005 2:02 pm
Posts: 373
Location: Germany
Hello mguo,

The process of designing an RF system usually starts with a concept of the system. Once you have a clear concept, then you continue with a block diagram. Each of the building blocks have its own RF parameters like: Gain, Noise Figure (NF), 3rd Order Intercept Point (IP3) etc. You cascade the building blocks and assign to each of them its respective RF parameters. Then you can use an EXCEL sheet and calculate the cascaded or composite result for each of these parameters like Cascaded Gain, Cascaded IP3 etc.

As mentioned, this can be done by EXCEL or by another RF tool like Syscalc etc. This tools contain the Friis formulas for cascading IP3 and NF.

Hope this helps!

Best regards,

- IR

Posted  11/12/2012
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