Am Mi, 21.02.2007, 19:51, schrieb Erasmo Alonso Iglesias:
> I will comment the advantages of a PI/T topology in comparison with a L
> On one hand, if we consider an output resistance, a L matching network and
> an input resistance, the designer can't decide the bandwidth (or the Q
> factor) of the matching, because Q factor using the L network is set only
> the output resistance and the input resistance. On the other hand, if we
> consider an output resistance, a PI/T matching network and an input
> resistance, the designer can decide the bandwidth (or the Q factor) of the
> matching, because Q factor using the PI/T network depends on the output
> resistance, the input resistance and an arbitrary virtual resistance.
> The PI/T matching network can be studied as a first L matching network,
> connected among the output resistance and the virtual resistance, and a
> second L matching network, connected among the virtual resistance and the
> input resistance. Then, there are four types of PI/T matching networks:
> pass-Low pass, High pass-High Pass, Low Pass-High Pass and High Pass-Low
> pass, according to the two types of the two L networks that form it.
> I think it would be very useful to use a tool which generates a the PI/T
> matching network from the central frequency, the bandwidth, the topology
> or T) and the type (LP-LP, HP-HP, LP-HP, HP-LP).
> I hope that you have understood my commentaries, greetings :)
Thank you very much for your explanations. Makes perfect sense. I
consider it a good thing as well...
Probably Michael can put that into the GUI someday...
Can you probably write a latex-document describing the function and
computation of those matching networks?