%0 Journal Article
	%A Hung-Wei Wu and  Yung-Wei Chen and  Yu-Fu Chen and  Cheng-Yuan Hung
	%D 2012
	%J International Journal of Electronics and Communication Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 65, 2012
	%T New Triangle-Ring UWB Bandpass Filter with Sharp Roll-Off and Dual Notched Bands
	%U https://publications.waset.org/pdf/6328
	%V 65
	%X This paper presents a new ultra-wideband (UWB) bandpass filter (BPF) with sharp roll-off and dual-notched bands. The filter consists of a triangle ring multi-mode resonator (MMR) with the stub-loaded resonator (SLR) for controlling the two transmission zeros at 2.8 / 11 GHz, the embedded open-circuited stub and the asymmetric tight coupled input/output (I/O) lines for introducing the dual notched bands at 5.2 / 6.8 GHz. The attenuation slope in the lower and higher passband edges of the proposed filter show 160- and 153-dB/GHz, respectively. This study mainly provides a simple method to design a UWB bandpass filter with high passband selectivity and dual-notched bands for satisfying the Federal Communications Commission (FCC-defined) indoor UWB specification

	%P 497 - 500