Stepped impedance resonators in triple band pass filter design for wireless communication systems
International Review of Electrical Engineering
Praise Worthy Prize
Place of Publication
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.
Bandpass, resonators, SIRs, microstrip, filter, communication, wireless.
A. Eroglu (2010).
Stepped impedance resonators in triple band pass filter design for wireless communication systems. International Review of Electrical Engineering.5 (5), 2494-2499. United States: Praise Worthy Prize.