Title : 
Novel wideband orthomode transducer for 70–95GHz
         
        
            Author : 
Choubey, Prem Narayan ; Wei Hong
         
        
            Author_Institution : 
State Key Lab. of Millimeter Wave, Southeast Univ., Nanjing, China
         
        
        
            fDate : 
March 30 2015-April 1 2015
         
        
        
        
            Abstract : 
This paper presents a novel orthomode transducer (OMT) with the dimension of WR-10 waveguide. The internal structure of the OMT is in the shape of Y so we named it a Y-junction OMT, it contain one square waveguide port with the dimension 2.54mm × 2.54mm and two WR-10 rectangular waveguide ports with the dimension of 1.27mm × 2.54mm. The operating frequency band of OMT is 70-95GHz (more than 30% bandwidth) with simulated insertion loss <;-0.3dB and cross polarization better than -40dB throughout the band for both TE10 and TE01 modes.
         
        
            Keywords : 
electromagnetic wave polarisation; millimetre wave devices; rectangular waveguides; waveguide junctions; WR-10 rectangular waveguide; Y-junction OMT; cross polarization; frequency 70 GHz to 95 GHz; insertion loss; waveguide junction; wideband orthomode transducer; Insertion loss; Junctions; Rectangular waveguides; Shape; Transducers; Wideband; Orthomde Transducer (OMT); Square to rectangular waveguide transition; WR-10 waveguide; Wideband performance;
         
        
        
        
            Conference_Titel : 
Wireless Symposium (IWS), 2015 IEEE International
         
        
            Conference_Location : 
Shenzhen
         
        
        
            DOI : 
10.1109/IEEE-IWS.2015.7164587