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Inter Digital capacitor AWR

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Beeresha R S

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Any one can help me, In AWR software

Problem:i have design interdigital capacitor but this capacitance value is varied by varying the frequency. in normal distributed capacitance value is constant. [/B]

my work is i have design a distributed filter circuits i have try to replace distributed capacitance place the designed interdigital capacitor,but its scattering parameters, capacitance and quality factor is varied so im struck to get desired result.

Thank you
Beeresha R S
 

Beeresha R S said:
Problem:i have design interdigital capacitor but this capacitance value is varied by varying the frequency. in normal distributed capacitance value is constant.
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Value is constant only if your ICAP is small compared to the wavelength. And even when small, it has some series inductance that results in frequency dependence.
 

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