Title : 
Dual passband dichroic plate for X-band
         
        
            Author : 
Otoshi, T.Y. ; Franco, M.M.
         
        
            Author_Institution : 
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
         
        
        
        
        
            fDate : 
10/1/1992 12:00:00 AM
         
        
        
        
            Abstract : 
A need arose in the NASA Deep Space Network, a worldwide tracking system, for a dichroic plate that would be transparent at two desired frequency bands in the X-band region and be totally reflective at S-band. The dual-passband dichroic plate that was developed to meet the technical requirements is a thick metallic plate having an array of periodic round holes filled with Teflon plugs. Test results on an experimental prototype plate indicate that it is technically possible to design a dielectrically filled dichroic plate that meets all of these technical requirements
         
        
            Keywords : 
antenna accessories; microwave antennas; tracking systems; NASA Deep Space Network; S-band; Teflon plugs; X-band; dielectrically filled dichroic plate; dual-passband dichroic plate; frequency bands; periodic round hole array; thick metallic plate; totally reflective plate; tracking system; transparent plate; Dielectric materials; Downlink; Frequency; Geometry; Impedance; NASA; Passband; Plugs; Propulsion; Tellurium;
         
        
        
            Journal_Title : 
Antennas and Propagation, IEEE Transactions on