Title : 
Quality and performance of tunable waveguide backshorts
         
        
            Author : 
Ellison, B.N. ; Little, L.T. ; Mann, C.M. ; Matheson, D.N.
         
        
            Author_Institution : 
Rutherford Appleton Lab., Didcot, UK
         
        
        
        
        
        
        
            Abstract : 
A technique is presented for determining the quality of tunable short circuits used as backshorts in waveguide mixers. A backshort, suitable for use in a reduced height 345 GHz Schottky mixer block, has been fabricated in a novel manner and the VSWR determined, using the authors´ technique, to be >90 at room temperature.
         
        
            Keywords : 
mixers (circuits); solid-state microwave circuits; tuning; waveguide components; 345 GHz; MM-wave circuit; Schottky mixer block; THF; VSWR; reduced height; short circuits; submillimetre wavelengths; tunable waveguide backshorts; waveguide mixers;
         
        
        
            Journal_Title : 
Electronics Letters
         
        
        
        
        
            DOI : 
10.1049/el:19910091