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| Filter Design Resources |
Listed are resources for doing the design yourself. There are many magazine articles and websites with useful information that can either assist you with your own design, or convince you that it is best to find an expert to do it for you.
These companies here can supply your needs for any type of filter. They provide not only a stock of off-the-shelf models, but can also design and manufacture custom models for meeting specialty selectivity, group delay, insertion loss, form factor, power handling, or other unique parameters.
AADE Filter Design and Analysis V 4.4
Free download from Almost All Digital Electronics.
A Filter Primer
This comprehensive article covers all aspects of analog filters. By Maxim Integrated Products, Dallas Semiconductor.
Active Filter Design and Specification for Control of Harmonics in Industrial and Commercial Facilities
Abstract by Mark McGranaghan, Electrotek Concepts, Inc.
Adaptive Filter Design with Ride
From National Instruments.
Analog Filter Design Demystified
This article shows how to design analog filters. It starts by covering the fundamentals of filters, goes on to introduce the basic types like Butterworth, Chebyshev, and Bessel, and then guides the reader through the design process for lowpass and highpass filters. Included are the derivation of the equations and the circuit implementation.
An Intra-Disciplinary Capstone Project in Digital Filter Design
By Jim Armstrong, Amy Bell, and Gail Gray, Bradley Department of Electrical and Computer Engineering, Virginia Tech.
Basics of Anti-Aliasing: Using Switched-Capacitor Filters
By Maxim Integrated Products, Dallas Semiconductor.
Custom Filter Design
White paper from Microwave Packaging Technology, Inc.
Designing Active High Speed Filters
From National Semiconductor.
Designing Elliptic Filters With Maximum Selectivity
By Celestino A Corral, Motorola Inc.
Designing Filters Using the Digital Filter Design Toolkit
Application note by Rahman Jamal, Mike Cerna, John Hanks, National Instruments.
Design of the Inverter Output Filter for Motor Drives with IRAMS Power Modules
Application note from International Rectifier.
Digital Filter Design
Writing Difference Equations For Digital Filters From Applied Industrial Control Solutions, by Brian T.
Digital Filter Design Tool
This is an applet that allows you to design digital filter graphically.
EMI Filter Design and Stability Assessment of DC Voltage Distribution based on Switching Converters
Abstract from FERMILAB.
Filter Basics: Anti-Aliasing
This application note discusses the different filtering requirements for a sampled data system. It describes aliasing and the types of filters that can be used for anti-aliasing.
Filter Design and Analysis
Filter design articles, tools, software, and books from Circuit Sage.
Filter Design in Thirty Seconds
Need a filter—fast? No theory, very little math—just working filter designs, and in a hurry? This is the right document. From Texas Instruments.
Filter Design Tool Tutorial
This document is meant as a tutorial for the first-time user. In this tutorial we walk the user through the different features of the applet.
Filter Design Using Integrator Blocks
By Maxim Integrated Products, Dallas Semiconductor.
FIR and IIR Digital Filter Design Guide
From Frequency Devices.
FIR Digital Filter Design Applet
From DSP Tutor.
Geotextile Filter Design, Application, and Product Selection Guide
From Ten Cate Nicolon.
 By
Guided Wave Technology
Denmark |
| Guided Wave Technology's Coupling Matrix Synthesis (CMS) tool facilitates synthesis of N+2 coupling matrices
for Chebyshev bandpass filtering functions, with arbitrary finite-position transmission zeroes. |
 |
The CMS tool gives
a fast and accurate
overview of: |
● Filter orders up to 12
● Arbitrary placement of transmission zeroes
● Complex transmission zeroes
● Extended parameter plotting options
● S-parameter
file (s2p) generation
● Topology matrix definition of filter circuits
● Advanced
graph and marker functions
● Easily re-scalable axes
● Excellent overview - input/output
together
● Saving and loading of designs
● Fast response
● Integrated
manual
● Intuitive and very user friendly interface |
|
| Guided Wave Technology
is a microwave filter R&D company, specialized in development and production of
passive filter prototypes and series. |
|
High-Pass Butterworth Filter Design
From Besser Associates.
High performance and Low power FIR Filter Design Based on Sharing Multiplication
By Jongsun Park, Woopyo Jeong, Hunsoo Choo, Hamid Mahmoodi-Meimand, Yongtao Wang, and Kaushik Roy, School of Electrical and Computer Engineering, Purdue University.
IIR Chebyshev Lowpass Filter Design with Hypersignal Block Diagram
From National Instruments.
IIR Digital Filter Design Applet
From DSP Tutor.
Implementation of High-Performance Integrated Analog Filters and Filter Banks
Project by Lars Wanhammar, Electronics Systems, Linköping University.
Implementing IIR Digital Filters
Application note by Amar Palacherla, Microchip.
Inline TM110-Mode Filters With High-Design Flexibility by Utilizing Bypass Couplings of Nonresonating TE 10=01 Modes
Abstract by Uwe Rosenberg, Smain Amari, and Jens Bornemann.
Input Filter Design for Switching Power Supplies
Michele Sclocchi National Semiconductor.
Introduction to Digital Filters
A tutorial.
Kaiser Window FIR Filter Design Applet
From DSP Tutor.
LC Band Pass Filter Circuit
Overview and information about the basics of the design of an RF LC bandpass or band pass filter circuit including the design considerations and formulae (formulas) and construction tips. From Radio-electronics.com.
LC Filter Design
An interactive design package for designing analogue (i.e. hardware) filters made of inductors and capacitors (Ls and Cs).
LC Filters Tutorial
By Ian C. Purdie.
LC High Pass Filter Circuit
The design considerations and formulae (formulas) for an LC (inductor capacitor high pass filter. From Radio-electronics.com.
LCL Filter Design for PWM Rectifiers
By Mike Sippola and Wolfgang L. Klampfer, Schaffner EMV AG.
LC Low Pass Filter Circuit
The design considerations and formulae (formulas) for an LC (inductor capacitor) low pass filter. From Radio-electronics.com.
Low-Pass Butterworth Filter Design
Article from Besser Associates.
|
| Lowpass Butterworth Filter Plotter
From RF Cafe - Office Web Components (OWC) are required for this page to function.
Low-Sensitivity, Lowpass Filter Design
From National Semiconductor.
Low-Sensitivity, Highpass Filter Design with Parasitic Compensation
From National Semiconductor.
Low-Sensitivity, Bandpass Filter Design with Tuning Method
From National Semiconductor.
Matheonics Technology
519-578 2092 / Kitchener, Ontario, Canada
FAZA software tool for the analog filters design - free demo. Also a very extensive filter design tutorial.
Minimizing Component-Variation Sensitivity in Single Op Amp Filters
By Maxim Integrated Products, Dallas Semiconductor.
Nonlinear Order Statistic Filter Design: Methodologies and Challenges
Abstract by Moncef Gabbouj and Jaakko Astola, Tampere University of Technology, Finland.
Novel Designs For Elliptic Bandstop Filters
From RF Design, by Philip R. Geffe.
 Oscilent
Irvine, CA
949-252-0522 |
 |
| Oscilent Corporation is a manufacturer of Frequency Control products offering
design and production expertise in SAW Filters, Quartz Crystals, Crystal Oscillators, Crystal Filters, and Ceramic
Resonators. Our product line includes extensive custom and standard capabilities in Temperature Compensated (TCXO)
and Voltage Controlled (VCXO) Oscillators, in addition to full design and development capabilities in each focus
product category. Oscilent serves OEM, Design, and Contract Manufacturing customers in all major world development
and manufacturing zones. |
| Frequency Components |
» Ceramic
Resonators
» Crystal
Oscillators
» TCXO
/ VCXO
» Quartz
Crystals
» Crystal
Filters
» SAW
Filters
» IF
SAW Filters
» RF
Filters
» Ceramic
Filters |
------------------------
Through-Hole
& Surface Mount
Packages
Available
RoHS / Lead Free
ISO-9002 Certification
------------------------ |
 |
Do you have a custom requirement?
Use our
Custom SAW
Filter Worksheet |
|
Overvoltage Suppression Filter Design Methods Based on Voltage Reflection Theory
Abstract by SangCheol Lee and KwangHee Nam.
Parks-McClellan FIR Filter Design
From DSP Tutor.
Power Supply Output Filter Design - Overshoot
By Jerrold Foutz, SMPS Technology.
Practical FIR Filter Design in MATLAB
This tutorial white-paper illustrates practical aspects of FIR filter design and fixed-point implementation along with the algorithms available in the Filter Design Toolbox and the Signal Processing Toolbox for this purpose.
Quantized FIR Filter Design Using Compensating Zeros
Article by Kishore A. Kotteri, Amy E. Bell, and Joan E. Carletta.
rfcurrent.com
Devoted to RF & microwave filter theory and design.
Microwave Lowpass Filters with a Constricted Equi-Ripple Passband, by Dieter Pelz
Revision of Cascade Synthesis Theory Covering Cross-Coupled Filters, by Dieter Pelz
RF Filters
A brief description of RF and audio filters, and a lot of links to articles on the ARRL's website. By the ARRL.
Transistor High Pass Filter A simple one transistor circuit to provide an active high pass filter. From Radio-electronics.com.
Twin T Notch Filter
Design and circuit considerations for a resistor capacitor (RC) twin T notch filter. From Radio-electronics.com.
Using the Analog Devices Active Filter Design Tool
Application note from Analog Devices.
Utilising the PDSP16256 Filter Design Program
Application note from Zarlink Semiconductor.
VCO Inductor and External Loop Filter Design Guidelines for the AT86RF401X
From Atmel Corporation.
Waveguide EM Filter Analysis and Design
From Guided Wave Technology.
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Kirt
