On the design of novel compact broad-band planar filters

By Wolfgang Menzel, Lei Zhu, Ke Wu, F. Bögelsack. 2003

172 citations recorded by the source corpus.

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A Novel Band-Reject Frequency Selective Surface With Pseudo-Elliptic Response (2010, background): “Each resonator contributes to one reflection zero at a frequency where its electrical length becomes equal to [15], [ 16 ].”
Compact Ultra-Wideband Bandpass Filters Using Composite Microstrip–Coplanar-Waveguide Structure (2006, methodology): “Another way to realize wideband bandpass filters is to use the parallel-coupled lines [ 7 ], [8].”
Ultra-wideband bandpass filter with hybrid microstrip/CPW structure (2005, unknown): “The basic principle of this UWB filter originated in [8] and [9] to explore compact and broadband BPFs with the bandwidth of 60% 80%.”
A Microstrip Ultra-Wideband Bandpass Filter With Cascaded Broadband Bandpass and Bandstop Filters (2007, methodology): “A multiple-mode resonator and the quarter-wavelength parallel-coupled lines at the input and output ports are adopted in [4] and [5] to achieve the goals shown in [ 2 ] and [3].”
Ultra-wideband (UWB) bandpass filters using multiple-mode resonator (2005, methodology): “Following the works in [10] and [11], the MMR here is to be properly modified in configuration so as to reallocate its first three resonant modes close to the lower-end, center, and upper-end of the targeted UWB passband.”