Quintel Cayman Limited

Karl Ni

David Edwin Barker

Peter Chun Teck Song

A base station system may include at least one base station radio, at least one antenna, the at least one antenna including at least a first antenna comprising a linear array of antenna elements arranged in a vertical plane, and at least a one antenna distribution network for distributing radio frequency (RF) signals as component RF signals across the linear array of antenna elements of the at least the first antenna to form at least one beam in an elevation plane. In one example, the at least the one antenna feed network applies amplitude and phase weights to the component RF signals, wherein the amplitude and phase weights are selected to minimize RF coupling between the at least the first antenna and passive intermodulation sources in a near-field of the at least the first antenna.

Passive intermodulation interference optimized antenna configuration

An antenna system includes unit cells arranged as an array of unit cells, each unit cell including at least one dual-polarized antenna element for operation in a first radio frequency (RF) range, and least one configured as an expanded diamond antenna element with first and second pairs of co-polarized radiating elements, the first and second pairs of co-polarized radiating elements having orthogonal polarizations. The unit cell for the at least one expanded diamond antenna element may have rectangular bounds, where first and second radiating elements of the first pair of co-polarized radiating elements are disposed in first opposite corners across a first diagonal of the rectangular bounds and within the rectangular bounds, and where first and second radiating elements of the second pair of co-polarized radiating elements are disposed in second opposite corners of the four corners across a second diagonal of the rectangular bounds and within the rectangular bounds.

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Rochester, NY, United States of America

Karl Ni