Patent ID: 7242352
Filing Date: 2007-07-10
Classification: H01Q

Abstract:
1. A monopole-type antenna for multi- or wide-band use to transmit or receive radio frequency electromagnetic energy, comprising: a feed point, to receive the energy into the antenna or to provide the energy from the antenna; a driven radiating section including a first top-loading element and a feed conductor that electrically connects said feed point linearly to said first top-loading element, wherein said driven radiating section is not electrically connected to a grounding surface; and a parasitic radiating section including a second top-loading element and a bridge conductor that electrically connects said second top-loading element linearly to said grounding surface; and wherein when the energy is provided at said feed point and conducted to said driven radiating section it produces a first resonance mode, coupling at least some of the energy into and exciting said parasitic radiating section to produce a second resonance mode.