DESIGN OF A WIDEBAND BANDPASS FILTER USING TWO CROSS-COUPLED THREE SHORT ENDED SECTION

摘要

A new compact wideband band pass filter is designed by using two short-ended cross coupled sections between the input and output port up to some length. Shorting of section improves Its cutoff frequencies fall off. It also helps in size reduction and its covered area. It has measured 3dB pass band of (2 to 4.86) GHz band. The circuit size is reduced considerably and its size is (17.86×10.95) mm. This structure comprised of basically a ring resonator in which cross coupling and short ended section is provided. This wideband BPF is mainly applicable for IEEE defined S-Band applications. This wide band BPF was designed using ANSYS HFSS.