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  1. #1
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    Difference between lumped matching and distributed matching of Rf circuits

    Hi all,

    i want to design a MMIC circuit using lumped matching network,operating frequency is at Ku-band( 14GHz) with a bandwidth of 1GHz,can anybody guide me whether lumped matching is a good option? ( as by lumped matching only i am able to reduce the size of the circuit)

    What is the basic difference between lumped matching and distributed matching network ?

    Which one is better for broadbanding ?

    Regards

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  2. #2
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    Re: Difference between lumped matching and distributed matching of Rf circuits

    -Lumped Matching is almost impossible @ 14GHz due to many reasons.( self resonance,dissipation factor,etc).
    -Distributed elements can also provide wide-band matching.



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  3. #3
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    Re: Difference between lumped matching and distributed matching of Rf circuits

    MMIC designs use almost exclusively lumped element matching. They get away from it since the parasitics on a MMIC integrated circuit are smaller than a similar lumped element matching network in microstrip.

    In every case i can think of, lumped element is a better match anyway. Distributed element matching only works over a limited bandwidth due to transmission line effects.


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