A Simple Ultra-Wideband Suspended Stripline Bandpass Filter With Very Wide Stop-Band

A. Balalem, W. Menzel, J. Machac, A. Omar
2008 IEEE Microwave and Wireless Components Letters  
This letter introduces a simple ultra-wideband suspended stripline filter with a pass-band from 3.1 to 10.6 GHz and a very wide stop-band up to more than 25 GHz. The filter is realized by capactive coupling of a quasi-lumped low-pass filter to the I/O ports. Insertion loss in the pass-band is better than 0.5 dB. The filter has a length of 13.8 mm. Excellent agreement is achieved between measured and simulated results. Index Terms-Bandpass filter (BPF), suspended stripline filter, ultra-wideband (UWB) filter.
doi:10.1109/lmwc.2008.916779 fatcat:lf52ykw25jehjdfvyx6izsq73q