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has been cited by the following article:

• TITLE: Microstrip Ultra-Wideband Filter with Flexible Notch Characteristics

  AUTHORS: Marjan Mokhtaari, Jens Bornemann

  KEYWORDS: Microstrip Filters; Microstrip Resonators; Bandstop Filters; Ultra-Wideband Filters

  JOURNAL NAME: Wireless Engineering and Technology, Vol.3 No.1, January 12, 2012

  ABSTRACT: A microstrip ultra-wideband (UWB) filter with unique shape, compactness, simplicity of operation and flexible notch characteristics is introduced. It is based on the fundamental and harmonic characteristics of a 50 Ohm transmission line that is grounded at both ends. The filter possesses design flexibility in the sense that it can operate as a stand-alone UWB component or include simple additional circuitry to create one or two notches within the ultra-wideband frequency range. The basic design principles are highlighted and verified using the results of two commercially available field solver packages. Individual filter structures with single and double notches are validated through measurements of a number of filter prototypes.