A Compact UWB Bandpass Filter with Wide Stopband

S. S. Gao Institute of Applied Physics, University of Electronic Science and Technology of China, 610054 Chengdu, China

S. Q. Xiao Institute of Applied Physics, University of Electronic Science and Technology of China, 610054 Chengdu, China

J. P. Wang Institute of Applied Physics, University of Electronic Science and Technology of China, 610054 Chengdu, China

X.-S. Yang Institute of Applied Physics, University of Electronic Science and Technology of China, 610054 Chengdu, China

Y. X. Wang Institute of Applied Physics, University of Electronic Science and Technology of China, 610054 Chengdu, China

B.-Z. Wang Institute of Applied Physics, University of Electronic Science and Technology of China, 610054 Chengdu, China

Abstract

A compact ultra-wideband (UWB) bandpass filter is presented by using a modified stepped impedance resonator (SIR) and defected ground structures (DGSs). The modified SIR is to generate multiple-resonant peaks within the UWB passband and tighten the coupling with the feed-lines. Then, the DGSs are to enhance the coupling degree of coupled lines and realize wide stopband. From simulated and measured results, the filter shows good UWB performance, including low insertion loss within the passband, a small group delay variation, and a wide stopband with −20 dB attenuation up to 19.6 GHz.

Reprints and Corporate Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

To request a reprint or corporate permissions for this article, please click on the relevant link below:

Order Reprints Request Corporate Permissions

Academic Permissions

Please note: Selecting permissions does not provide access to the full text of the article, please see our help page How do I view content?

Obtain permissions instantly via Rightslink by clicking on the button below:

Request Academic Permissions

If you are unable to obtain permissions via Rightslink, please complete and submit this Permissions form. For more information, please visit our Permissions help page.

A Compact UWB Bandpass Filter with Wide Stopband

Information for

Open access

Opportunities

Help and information

A Compact UWB Bandpass Filter with Wide Stopband

Abstract

Reprints and Corporate Permissions

Academic Permissions

Related research

To cite this article:

Download citation

Information for

Open access

Opportunities

Help and information

Keep up to date

Your download is now in progress and you may close this window

Login or register to access this feature