Printed Band-Stop Filter for Mitigation of Electromagnetic Interference

A new printed microstrip band-stop filter is proposed and implemented. A systematic design approach is presented to realize the filter for a specific band of operation employing the concept of SIR and embedded stub. The proposed filter design is suitable for multiple stop band applications. Moreover, the filter configuration can be easily incorporated in the microstrip feed line connected with a radiating element to reject the signal at the desired band for mitigating the electromagnetic interference. A prototype model of the proposed design is developed, and characteristics are measured and compared with the simulation result. A good agreement between the two is evident.

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