Using of Vector Fitting Method for Pole Model Identification of WideBand Microwave Devices

A. A. Valaytite, E. V. Sadovskaya, T. Ya. Shevgunov

Moscow Aviation Institute (National Research University)

Received August 25, 2013

Abstract. This paper presents the application of vector fitting method to the estimation of pole-model parameters proposed for transfer function of multiport wideband microwave devices. The example of system identification made for simulated data of microstrip two-port filter is demonstrated; the verification step shows the model consisting of eight poles approximates the frequency response of the device with very high accuracy.

Keywords: wideband systems, microwave devices, vector fitting method, system identification.