Title

Stepped impedance resonators in triple band pass filter design for wireless communication systems

Document Type

Article

Publication Date

2010

Publication Source

International Review of Electrical Engineering

Volume

5

Issue

5

Inclusive pages

2494-2499

Publisher

Praise Worthy Prize

Place of Publication

United States

ISBN/ISSN

1827-6660

Peer Reviewed

yes

Abstract

Triple band microstrip tri-section bandpass filter using stepped impedance resonators (SIRs) is designed, simulated, built, and measured using hair pin structure. The complete design procedure is given from analytical stage to implementation stage with details. The coupling between SIRs is investigated for the first time in detail by studying their effect on the filter characteristics including bandwidth, and attenuation to optimize the filter perfomance. The simulation of the filter is performed using method of moment based 2.5D planar electromagnetic simulator. The filter is then implemented on RO4003 material and measured. The simulation, and measured results are compared and found to be very close. The effect of coupling on the filter performance is then investigated using electromagnetic simulator. It is shown that the coupling effect between SIRs can be used as a design knob to obtain a bandpass filter with a better performance for the desired frequency band using the proposed filter topology. The results of this work can used in wireless communication systems where multiple frequency bands are needed.

Keywords

Bandpass, resonators, SIRs, microstrip, filter, communication, wireless.

Disciplines

Engineering

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