Patent ID: 6593886
Filing Date: 2003-07-15
Classification: H01Q,H04B

Abstract:
An apparatus for conveying electromagnetic energy intermediate a host device and a medium substantially adjacent to the apparatus; the apparatus comprising:(a) a transceiving structure for transmitting said energy to said medium and receiving said energy from said medium; (b) a transmission structure for conveying signals representing said energy to said host device or from said host device; and (c) a feed structure coupling said transceiving structure with said transmission structure; said transceiving structure including a substantially planar metal layer arrayed upon a dielectric substrate; said metal layer being bounded by a first edge and a second edge; said first edge and said second edge cooperating to form a bight having a first arm and a second arm establishing a metal-free area intermediate said first arm and said second arm; said first arm presenting a first terminal locus and said second arm presenting a second terminal locus; said feed structure being coupled with said first and second terminal loci to effect said coupling; the apparatus effecting said transfer of electromagnetic energy in signals having a range of frequencies intermediate a high-limit frequency and a low-limit frequency; said first edge extending a first path length intermediate said first terminal locus and said second terminal locus; said second edge extending a second path length intermediate said first terminal locus and said second terminal locus; said first path length being related to a first wavelength of one frequency of said high-limit frequency and said low-limit frequency; said second path length being related to a second wavelength of the other frequency of said high-limit frequency and said low-limit frequency than said one frequency.