Title : 
Singlet formed by two transversal ridges in a rectangular waveguide from the spectral theory point of view
         
        
            Author : 
Mospan, Lyudmila ; Prikolotin, Sergey ; Kirilenko, Anatoliy
         
        
            Author_Institution : 
Comput. Electromagn. Dept., O. Ya. Usikov Inst. for Radiophys. & Electron., Kharkov, Ukraine
         
        
        
        
        
        
            Abstract : 
Compact waveguide section generating a singlet is proposed. It is a rectangular waveguide section with two uneven transversal ridges. It is studied in details within the frames of the spectral theory of open waveguide resonators in order to reveal a physical nature of its resonant filtering function. A transmission zero generation is interpreted as known “trapped-mode” resonance. The resonance features are defined by the peculiarities of the spectrum of natural oscillations of the waveguide section. Strict agreement between scattering and spectral characteristics is reported.
         
        
            Keywords : 
rectangular waveguides; resonator filters; spectral analysis; compact waveguide section; natural oscillations; open waveguide resonators; rectangular waveguide section; resonant filtering function; scattering characteristic; singlet; spectral characteristic; spectral theory point of view; transmission zero generation; transversal ridges; trapped-mode resonance; Electromagnetic waveguides; Filtering theory; Microwave filters; Oscillators; Resonant frequency; Resonator filters; Scattering; bandpass filer; elliptic filter; natural oscillation; singlet; transmission zero (TZ); waveguide filter;
         
        
        
        
            Conference_Titel : 
Microwave Conference (EuMC), 2013 European
         
        
            Conference_Location : 
Nuremberg