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Methodology for designing microwave acoustic filters with Butterworth/Chebyshev response

Published online by Cambridge University Press:  06 March 2009

Óscar Menéndez ,
Pedro de Paco ,
Joan Gemio ,
Jordi Verdú  and
Edén Corrales
Óscar Menéndez*
Affiliation:
Antenna and Microwave Systems (AMS) Group of the Universitat Autònoma de Barcelona (UAB), Q-Building Campus UAB, Barcelona 08193, Spain.
Pedro de Paco
Affiliation:
Antenna and Microwave Systems (AMS) Group of the Universitat Autònoma de Barcelona (UAB), Q-Building Campus UAB, Barcelona 08193, Spain.
Joan Gemio
Affiliation:
Antenna and Microwave Systems (AMS) Group of the Universitat Autònoma de Barcelona (UAB), Q-Building Campus UAB, Barcelona 08193, Spain.
Jordi Verdú
Affiliation:
Antenna and Microwave Systems (AMS) Group of the Universitat Autònoma de Barcelona (UAB), Q-Building Campus UAB, Barcelona 08193, Spain.
Edén Corrales
Affiliation:
Antenna and Microwave Systems (AMS) Group of the Universitat Autònoma de Barcelona (UAB), Q-Building Campus UAB, Barcelona 08193, Spain.
*
Corresponding author: O. Menéndez E-mail: oscar.menendez@uab.es
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Abstract

This work presents a methodology for designing microwave acoustic filters, based on two-port bulk acoustic wave resonators (also known as stacked crystal filters), with either Butterworth or Chebyshev response. The presented methodology makes it possible to design this type of filter without any optimization work, and, moreover, for its closed-form expressions design can be obtained. As a validation example, we address the design of a pair of filters for UMTS cellular phone handsets. The different simulations carried out show the good agreement between the transmission response of the designed filters and the theoretical response.

Keywords

Bulk acoustic wave resonatorStacked crystal filterMason model

Information

Type
Original Article
Information
International Journal of Microwave and Wireless Technologies , Volume 1 , Issue 1 , February 2009 , pp. 11 - 18
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2009

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References

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