Title : 
Noise-matched unidirectional parametric amplifier of the 4-frequency type
         
        
            Author : 
Bosch, B.G. ; Ertelt, G.
         
        
            Author_Institution : 
Telefunken AG, Research Institute, Ulm, West Germany
         
        
        
        
        
            fDate : 
7/1/1966 12:00:00 AM
         
        
        
        
            Abstract : 
Experiments confirm that the type of parametric amplifier investigated can be operated noise-matched. By deviating from power match, the noise figure of a 10 Mc/s model amplifier has been reduced by a factor of 5, and the gain-bandwidth product has been increased by 120%.
         
        
            Keywords : 
noise; parametric amplifiers;
         
        
        
            Journal_Title : 
Electronics Letters
         
        
        
        
        
            DOI : 
10.1049/el:19660215