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RF CIRCUIT DESIGN BY ADS - RF Cafe Forums
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| david1986
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Post subject: RF CIRCUIT DESIGN BY ADS
Posted: Sat Feb 13, 2010 12:47 am
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Joined: Sat Feb 13, 2010
12:16 am
Posts: 1 |
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Hi everybody!
Excuse me, I'm studding MSC,I
looking for procedure design The RF amplifier work
in 34GHz, i know i should make matching for cct.
in s-parameter but idont know how i do bias cct
without effect the matching cct.
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fred47 |
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Post subject: Re: RF CIRCUIT DESIGN BY ADS
Posted: Sun Feb 14, 2010 8:25 pm
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| General |
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Joined: Wed Feb 22, 2006
3:51 pm
Posts: 119 |
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David,
At 34 GHz, there may be unavoidable interaction
between the impedance matching circuit and the bias
circuit - especially if you're trying to get a broad-band
amplifier.
That said, a quarter-wave line
(acting as a transformer) from the bias source to
the active device may help - but pretty much all
passive devices will be composites. By which I mean,
there will be unavoidable capacitance to your resistors,
unavoidable resistance all over the place in your
transmission lines and resonators. Your best bet
is just to make allowances.
Good Luck!
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Posted 11/12/2012
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