Patent ID: 6172655
Filing Date: 2001-01-09
Classification: H01Q

Abstract:
An axial-mode antenna winding, comprising:an elongated electrical conductor including a feed end and a distal end remote from said feed end, said elongated electrical conductor being wound in a generally helical fashion about an axis to define first and second portions of said antenna winding, said first portion of said antenna winding having a first diameter adjacent said feed end of said electrical conductor, and a second diameter, larger than said first diameter, at an end of said first portion remote from said feed end, said first portion of said antenna winding being wound with a first pitch angle, said second portion of said antenna winding having said second diameter at an end of said second portion remote from said distal end of said electrical conductor, and a third diameter, smaller than said second diameter, adjacent said distal end of said electrical conductor, said second portion of said antenna winding being wound with a second pitch angle, different than said first pitch angle, said first and second portions of said antenna being juxtaposed without an intervening portion which is wound with a constant diameter.