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Modeling and design of a bi-access tri-band antenna combining different radiating structures based on modal analysis of resonant cavity

Published online by Cambridge University Press:  14 December 2011

Walid El Hajj*
Affiliation:
Lab-STICC/MOM, Institut Telecom-Telecom Bretagne, Technopôle Brest, Iroise, CS 83818, 29238 Brest Cedex 3, France.
François Gallee
Affiliation:
Lab-STICC/MOM, Institut Telecom-Telecom Bretagne, Technopôle Brest, Iroise, CS 83818, 29238 Brest Cedex 3, France.
Christian Person
Affiliation:
Lab-STICC/MOM, Institut Telecom-Telecom Bretagne, Technopôle Brest, Iroise, CS 83818, 29238 Brest Cedex 3, France.
*
Corresponding author: W. El Hajj Email: walid.elhajj@telecom-bretagne.eu

Abstract

A new design method for multi-access antennas is presented. This method is based on a modal analysis assuming the microstrip antennas as a resonant cavity. Using this cavity approach, the eigenmodes perturbation induced by the cavity deformation (adding slots or short circuits) is studied. As an application, a solution of multi-access antenna with two ports, with operating frequency bands centered approximately on digital cellular system (DCS) and universal mobile telecommunication system (UMTS)/Wi-Fi standards is developed. These two ports are isolated using the previous original design method. In addition to the design method, the innovation of the structure resides on its application in terms of flexibility, reconfigurability, and portability for the future development of a unique system that allows cross services where telephony joined multimedia and online services. The design method and the performances are validated through comparisons between simulations and measurements.

Type
Research Papers
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2011

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References

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