Abstract: A lensed antenna is provided. The lensed antenna includes a linear array of radiating units that are spaced apart from one another in a longitudinal direction. Each radiating unit includes a first radiating element and a second radiating element that is arranged proximate to the first radiating element. Either of the first radiating element or the second radiating element is operable to resonate at a first frequency and a combination of the first radiating element and the second radiating element is operable to resonate at a second frequency that is different from the first frequency. A lens is positioned to receive electromagnetic radiation from at least one of the radiating units.

Abstract: A cellular base station antenna having improves squint performance is provided. The antenna includes a ground plane, a first plurality of radiating elements supported over the ground plane by microstrip support PCBs, and a second plurality of radiating elements supported over the ground plane by stripline support PCBs. The first and second pluralities of radiating elements are arranged in at least one array of low band radiating elements, and the quantities of first and second pluralities of radiating elements are selected to reduce squint of a beam produced by the at least one array. The first plurality of radiating elements may be located below the second plurality of radiating elements in the array. The array may be arranged in a linear column or a staggered column. In one example, the first plurality of radiating elements comprises four radiating elements and the second plurality radiating elements comprises two radiating elements.

Abstract: A higher band radiating element for use in a multiband antenna includes first and second dipole arms supported by a feedboard. The feedboard includes first and second matching circuits, each comprising a capacitor-inductor-capacitor (CLC) matching circuit. The matching circuit further includes a CM tuning circuit connecting a portion of the matching circuit to ground via a microstrip trace selected to pass lower band currents while blocking higher band currents. The CM tuning circuit moves the common mode resonance of the higher band support PCB down below the operating frequency of additional, lower band radiating elements present in the multiband antenna, which is preferable to moving the common mode resonance above the lower band frequencies.

Abstract: A higher band radiating element for use in a multiband antenna includes first and second dipole arms supported by a feedboard. The feedboard includes first and second matching circuits, each comprising a capacitor-inductor-capacitor (CLC) matching circuit. The matching circuit further includes a CM tuning circuit connecting a portion of the matching circuit to ground via a microstrip trace selected to pass lower band currents while blocking higher band currents. The CM tuning circuit moves the common mode resonance of the higher band support PCB down below the operating frequency of additional, lower band radiating elements present in the multiband antenna, which is preferable to moving the common mode resonance above the lower band frequencies.

Abstract: A cellular base station antenna having improves squint performance is provided. The antenna includes a ground plane, a first plurality of radiating elements supported over the ground plane by microstrip support PCBs, and a second plurality of radiating elements supported over the ground plane by stripline support PCBs. The first and second pluralities of radiating elements are arranged in at least one array of low band radiating elements, and the quantities of first and second pluralities of radiating elements are selected to reduce squint of a beam produced by the at least one array. The first plurality of radiating elements may be located below the second plurality of radiating elements in the array. The array may be arranged in a linear column or a staggered column. In one example, the first plurality of radiating elements comprises four radiating elements and the second plurality radiating elements comprises two radiating elements.