Patent ID: 6486846
Filing Date: 2002-11-26
Classification: H01Q

Abstract:
An antenna system for transmitting and receiving, in association with a radio device, electromagnetic radiation having an E-field component and an H-field component, the electromagnetic radiation corresponding to a radio frequency power signal having a current and a voltage at a radio frequency, the current and the voltage each having a phase, the antenna system comprising:a. a first radiating element comprising a conductive material; b. a second radiating element comprising a conductive material, the second radiating element spaced apart from and in alignment with the first radiating element; and c. a phasing and matching network, in electrical communication with the first radiating element, the second radiating element and the radio device, that aligns the relative phase between the current and the voltage of the radio frequency power signal so that the H-field component of the corresponding electromagnetic signal is nominally in time phase with the E-field component, the phasing and matching network including: i. a first reactive element of a first type that electrically couples a first terminal of the radio device to the first radiating element; ii. a second reactive element of a second type that electrically couples a second terminal of the radio device to the first radiating element; iii. a third reactive element of the first type that electrically couples the second terminal of the radio device to the second radiating element; and iv. a fourth reactive element of the second type that is electrically in parallel with the third reactive element.