Design of a chebyshev microstrip filter using the reflected group delay method and the aggressive space mapping technique

The aggressive space mapping technique is implemented as the optimization algorithm for the reflected group delay method in designing a 5-pole microstrip hairpin filter. The optimization routine using the reflected group delay method is represented mathematically and a design procedure is proposed for the integration of the space mapping technique and the reflected group delay method. The design steps are summarized and the filter is fabricated and tested. The optimization time is significantly reduced. The proposed method is proven to be very efficient and accurate for EM-based Chebyshev filter design.