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IEEE International Microwave Symposium, Long Beach, June 2005

Workshop WMB: FILTER II - PRACTICAL ASPECTS OF MICROWAVE FILTER DESIGN AND REALIZATION

Organizers: Ming Yu, COM DEV 

                     Dick Snyder, RS Microwave 

Sponsor: MTT-8: Filters and Passive Components

Date & Time: Monday, June 13; 8:00 AM to 5:00 PM 

Location: Hyatt Regency A 

Topics & Speakers:

  1. Introduction to practical aspects of microwave filter design and realization, M. Yu, COM DEV 
  2. Practical issues of realizing filter couplings, I. Hunter and D. Swanson, U of Leeds/TYCO 
  3. Designing filters to withstand inimical ambient environments, D. Snyder, RS Microwave 
  4. Temperature compensation of microwave Filters, C. Wang, Orbital Communication 
  5. RF voltage breakdown: Case Studies and Prevention, C. Bell, Consultant 
  6. Peak Power Handling limited by Microwave Breakdown in Air - Design and Validation, T. Olsson, Powerwave Technologies 
  7. Passive Intermodulation - Experimentally investigation, P. Macchiarella and A. Sartorio, Politecnico di Milano/Forem 
  8. Dielectric filter for wireless applications, C. McLaren and P. Kumar, Mitec Telecom 
  9. Microstrip filter design, J. Hong Heriot-Watt University
  10. Practical design issues of low cost polymer waveguide filters, E. Wheatley, Nera Research
  11. High power handling and DR - state of the art output multiplexers, H. Dillenbourg and J. Herren, ALCATEL

(Note: Thanks to those authors permission so the presentations can be posted)

 

Introduction

Are you twisted into a knot by rotations? Are you entangled in the Battle of the Matrices? Have incessant positive-real polynomials in filter papers made you conclude that, positively, I'm gone? Have you been wondering if you should be optimistic about optimization? Have genetic algorithms gotten to your DNA and neural networks to your neurons? Then relax, sit back, learn about the practical side of filters. Given a proper appreciation of theory, how does a practioner apply theory-based design information to produce filters that will survive in the nasty, real world out there? Within this workshop, we hope to provide many practical tips, because with filters, the devil is in the details. You have computed the required coupling coefficient. How do you actually achieve the positive and negative values? How can you implement the filter and have a warm, fuzzy feeling about survival and performance of your design with variations in temperature, humidity, during shock, vibration, at high altitude, submerged in jet fuel or other corrosive liquids including salt water? How to you ensure physical reliability while minimizing weight? What margins are required for high power operation at various altitudes, ranging from sea level to open space? How do these power margins relate to bandwidth and frequency? Why and under what conditions will a passive filter generate interference or intermodulation products in your receiver? Given the multiplicity of design approaches available for dielectric resonator filters, what approach should be selected for given situations? Similarly, what choices drive the design of microstrip filters? You won't emerge from this workshop knowing everything about filters, but you will unequivocally be more useful as a designer because of the information you will acquire during the 8 intense hours of our workshop. The presenters selected for this workshop have many years of battle-hardening and want to pass this information on to the microwave community. We hope for an interactive and busy session, and encourage your attendance.

  

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