CSRR-loaded MIMO antenna systems

摘要

The CSRR-loaded MIMO antenna systems provide highly compact designs for multiple-input-multiple-output (MIMO) antennas for use in wireless mobile devices. Exemplary two element (2×1), and four element (2×2) MIMO antenna systems are disclosed in which complementary split-ring resonators load patch antennas elements. The overall dimensions of the exemplary MIMO antenna system designed for operation from 750 MHz to 6 GHz band remain within 100×50×0.8 mm2.

主权项

1. A CSRR(complementary split-ring resonators)-loaded MIMO antenna system, comprising a printed circuit board (PCB) having:
at least one pair of patch antenna elements on an upper substrate surface of the PCB, the patch antenna elements being co-aligned lengthwise in mirror-image fashion, each of the patch antenna elements being a substantially rectangular planar conductor having a substantially rectangular planar microstrip transmission line extending parallel to but offset from a centerline of the rectangular planar conductor towards an edge of the PCB; a ground plane disposed on a lower substrate surface of the PCB; and a plurality of complementary split-ring resonators (CSRRs) defined in the ground plane, each of the patch antenna elements having a corresponding one of the CSSRs centered directly beneath the patch antenna element, each of the resonators being concentric inner and outer split rings.