Title : 
Broadband quasi-taper helical antennas
         
        
            Author : 
Wong, J.L. ; King, H.E.
         
        
            Author_Institution : 
Aerospace Corp., Los Angeles, CA, USA
         
        
        
        
        
            fDate : 
1/1/1979 12:00:00 AM
         
        
        
        
            Abstract : 
A unique approach is described for widening the bandwidth of a helical antenna with improved gain, pattern, and axial ratio characteristics. The antenna may be described as a nonuniform or quasi-taper helix, which consists of a combination of uniform and tapered helix sections. Measured patterns, gain, axial ratio, and VSWR for various helical antenna configurations are presented and compared. It is shown that a nonuniform quasi-taper helix can provide an operating bandwidth twice that of a conventional uniform-diameter helix.
         
        
            Keywords : 
Helical antennas; Antenna measurements; Bandwidth; Broadband antennas; Copper; Frequency response; Gain measurement; Helical antennas; Impedance; Performance gain; Wounds;
         
        
        
            Journal_Title : 
Antennas and Propagation, IEEE Transactions on
         
        
        
        
        
            DOI : 
10.1109/TAP.1979.1142033