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# Chebyshev And And Filter

59 Threads found on edaboard.com: Chebyshev And And Filter

## Calculating Resistance/Capacitance values from measured/simulated S-parameters

Hello! I designed a 2nd order bandpass chebyshev filter in HFSS. I fabricated the sample and measured the s-parameters. Its a two port network and it should have R1, R2, C1 and C2. I want calculate transient response of (...)

## How to obtain component values for Chebyshev from the formula?

Does anyone have some resources or mind explaining to me how we can synthesize a chebyshev filter from the formulas specifically, and not from tables? Specifically, I did the long form calculations starting with minimum number of poles and so forth, however, when I get to Gvalues G1, Gn I (...)

## Filter synthesis using Butterworth or Chebyshev

When a filter is designed, how does one choose whether to compare it to chebyshev or butterworth prototype element values for coupling and Q determination? Some papers mention Butterworth element values to determine Q and coupling, while others use chebyshev.

## desgin for broadband amplifier (feedback and matching network)

hello everyone , I am trying to make a broad band amplifier design with a feed back and matching network (chebyshev filter) order 3 . what transistor that I use for a very good band? i realized a band , (...)

## Chebyshev v Butterworth Filter Design

In parts A and B we design a 9th order Chebvshev filter. However, I'm stuck with part C. Can you confirm/disprove my method as being correct steps in solving the problem please? 1. Already determined is that we require a 9th order system. So we evaluate the chebyshev polynomial up to this order. 2. It is required (...)

## Minimizing Cost Function using gradient method on Coupling matrix. RF filter.

Hi, I've been following approaches by Atia and Cameron to construct a Coupling matrix for a chebyshev filter. I'm now trying to use Amari's approach to optimize the Coupling matrix by minimizing the Cost Function using his Gradient approach. Can someone send me a paper or Matlab code that goes about step-by-step how to (...)

## Ripples on the skirt of edge coupled filter at 6.2GHz

Hi all, I am trying to design a third order chebyshev edge coupled bandpass filter. The center frequency of the filter is 6.2 GHz with a 10% fractional bandwidth.I manufactured the filter and measured it with network (...)

## TLIN and MIM-Capacitor Characterization using Chebyshev Filter

Hello Guys, I need your help. I have created lumped-element models for single MIM-Capacitors and for micros trip transmission lines. I also got three 3rd order chebyshev low passes, built of MIM-Capacitors and tlines. I want to use these filters to do any characterization about my (...)

## need for a low pass filter with cutoff frequency around 10mhz

Hi all As I said I need a lowpass filter with cutoff frequency around 10Mhz, the most important thing i need is that the filter response in transition region is linear as much as possible,and it decrease monotonically because I use the filter In this region and it is (...)

## Chebyshev filter design Problem

-I have design a chebyshev filter.With The following specification. pass band 0-2khz pass band ripple=0.5dB sampling frequency 60khz and the transfer function given which is : H(s)=1.5161/(s^2+1.4526s+1.5161) -When I have done the design by (...)

## how can we find the amount of capacitors for the third order chebyshev Gm-C filter?

98285 could you help me please that how should I find the amount of capacitors for this tunable third order chebyshev filter? thanks

## Having Trouble With Designing IIR Filter on Frequency Transformation

Hello all, As written in title, I am having trouble with frequency transformation. There are three problems I am encountering right now. (1) Over-specification band pass filter I designed a 4th order chebyshev low pass filter which does satisfy given specification, in which - pass (...)

## chebyshev filter -3db point

hello I would like to create a bandpass filter in the range 7-15 kHz in which the points at 5 and 18 kHz are attenuated of 3dB, with 0.1dB ripple. Now as for the butterworth answer i can easily carry out the calculation, but I can not figure out how to find the -3db points in the case of the (...)

## Low pass filter (LC) design

The filter specification is incomplete without a source and load impedance specification. For 50 ohm source and load impedance, the said filter corresponds to chebyshev I with about 350 kHz cut-off and 1.5 dB (...)

## help with IIR filter(low-pass filter with impulse invariance and ellipsoid )

here is the problem: i use impulse invariance transform to design low-pass filter, butterworth,chebyshev1 can perfectly achieve the requirements,but ellipsoid and chebyshev 2 can't achieve the Rs(Stopband attenuation) and here is my code (...)

## Sallen-Key LPF frequency scaling factor

My questions are am I in the correct path and what is the effect of the frequency scaling factor (FSF)? The FSF is 1 for Butterworth but for Bessel and chebyshev it has an effect. Why is that? The equations for filter dimensioning are based on pole locations (pole frequency Fp (...)

## HFSS filter design: Unable to achieve tuning for the filter

I tried to design an edge coupled microstrip chebyshev BPF at 5.81 GHz. Specifications: Bandwidth: 150 MHz Order=5 Substrate Permittivity: 3.2 Substrate Height: 1.58 mm Cover Height: 30 mm Ripple: 0.01 dB The dimensions of the strips were obtained from Ansoft Designer SV as fpllows: w1=1.72mm s1=1.27mm p1=8.11mm w2=1.87mm (...)

## Designing a chebyshev bandpass filter

shouldn't there be a source resistance? Passive filters have to be designed for a specific combination of source and load impedance. It seems like the filter suggested by godfreyl (I didn't understand, if it's actually an exactly calculated chebyshev BP with the said (...)

## chebyshev filter exercise sample

The most straightforward way to design a bandpass filter is to first design a lowpass filter and then perform a lowpass to bandpass transformation. In your case, the bandwidth would be 455KHz, the (...)

## cut off frequency of chebyshev type II high pass filter

hello everyone!!! I am designing the type II chebyshev high pass filter. I have the transfer function of the filter(or the poles and zeros) . Can anyone tell me how to get the cut off frequncyf this filter?? I suppose, you need the 3dB-frequency, right? If you have all the poles (...)