Abstract
AbstractThis paper presents a novel, compact, low‐insertion‐loss, sharp‐rejection, wideband microstrip bandpass filter. The filter is based on a ring resonator with direct‐connected orthogonal feed lines, and uses two stepped‐impedance open stubs to construct a wideband passband with two sharp stopbands. The unit cell of the ring resonators is easily cascaded and also has the feature of a compact structure. The filter is designed to reduce interference in full‐duplex systems for satellite communications. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 45: 312–315, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20807
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