To: | <amps@contesting.com> |
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Subject: | [AMPS] Pi-Net math |
From: | realex@flash.net (bob alexander) |
Date: | Thu, 12 Aug 1999 06:06:09 -0500 |
? The problem here is that the Q contribution of C2 is ignored. The exact method takes into account the Q contribution of C2. The "exact" method isn't. C2 is not part of the input Z matching section of the pi net ? This is 102 pF if you use the Q contribution of C2. Input q is no longer 10...it is lower ? So, do the experiment yourself and see what you get. You get a pi network that is more broadbanded than desired, and has less harmonic attenuation than that needed for good design. 73, Bob, W5AH - -- FAQ on WWW: http://www.contesting.com/ampsfaq.html Submissions: amps@contesting.com Administrative requests: amps-REQUEST@contesting.com Problems: owner-amps@contesting.com Search: http://www.contesting.com/km9p/search.htm |
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