Title : 
Compensated broadband five-section directional coupler for application in butler matrices
         
        
            Author : 
Gruszczynski, Slawomir ; Sachse, Krzysztof
         
        
            Author_Institution : 
Dept. of Electron., AGH Univ. of Sci. & Technol., Cracow, Poland
         
        
        
        
        
        
            Abstract : 
A broadband five-section symmetrical 3 dB directional coupler has been designed. In order to improve the frequency characteristic of the coupler a recently proposed compensation technique has been used. The developed coupler operates in 2–12 GHz frequency band and can be applied in a broadband 4×4 Butler matrix.
         
        
            Keywords : 
Appropriate technology; Bandwidth; Butler matrix; Coupling circuits; Directional couplers; Frequency; Phase shifters; Power transmission lines; Transmission line matrix methods; Transmission line theory; capacitive compensation; directional couplers; multisection couplers;
         
        
        
        
            Conference_Titel : 
Microwave Radar and Wireless Communications (MIKON), 2010 18th International Conference on
         
        
            Conference_Location : 
Vilnius, Lithuania
         
        
            Print_ISBN : 
978-1-4244-5288-0