Small digital tunable antenna systems for wireless applications

摘要

The instant disclosure provides an antenna system with a generically small ground plane and a generic antenna radiating module, wherein the system further includes a matching circuit and a tunable capacitor each bring integrated with the ground plane and antenna in a novel configuration which provides improved antenna performance across multiple antenna resonances.

主权项

1. An antenna system, comprising:
a substrate extending about a longitudinal axis to define a length thereof, and having a width, wherein on a top surface of the substrate is disposed each of:
a ground plane conductor, andan antenna module; the antenna module being disposed adjacent to the ground plane conductor and spaced apart therefrom to form a longitudinal gap therebetween; the ground plane conductor comprising a channel extending inwardly from a side adjacent to the antenna module; a feed conductor extending longitudinally about the top surface of the substrate from the antenna module to a terminus of the channel, the feed conductor being isolated from the ground plane conductor via a channel gap surrounding the feed conductor; a ground connection element traversing the longitudinal gap from the ground plane conductor to a ground connection of the antenna module, wherein antenna module is configured to couple with the ground plane conductor via the ground connection element; a matching circuit coupled to each of said feed conductor and said ground plane conductor; and a tunable capacitor coupled to each of said feed conductor and said ground plane conductor.