A wireless communications system includes a first transceiver with a first phased array antenna panel having first circularly polarization reconfigurable receive transmit antennas, where the first circularly polarization reconfigurable receive transmit antennas form a first receive beam based on receive phase and receive amplitude information provided by a first master chip and form a first transmit beam based on transmit phase and transmit amplitude information provided by the first master chip. The wireless communications system may include a second transceiver having second circularly polarization reconfigurable receive transmit antennas where the second circularly polarization reconfigurable receive transmit antennas form a second receive beam based on receive phase and receive amplitude information provided by a second master chip, and form a second transmit beam based on transmit phase and transmit amplitude information provided by the second master chip.

A base station antenna includes a first radio frequency (“RF”) port; a second RF port; a first array of radiating elements that includes a first radiating element, the first radiating element including first and second radiators each having the first polarization direction, wherein the first radiator is coupled to the first RF port; a second array of radiating elements that includes a second radiating element, the second radiating element including a third radiator having the first polarization direction; and a first power divider having a first input that is coupled to the second RF port, and first and second outputs that are respectively coupled to the second and third radiators.

A base station antenna includes a first radio frequency (“RF”) port; a second RF port; a first array of radiating elements that includes a first radiating element, the first radiating element including first and second radiators each having the first polarization direction, wherein the first radiator is coupled to the first RF port; a second array of radiating elements that includes a second radiating element, the second radiating element including a third radiator having the first polarization direction; and a first power divider having a first input that is coupled to the second RF port, and first and second outputs that are respectively coupled to the second and third radiators.

An antenna structure, a circuit board with an antenna structure, and a communications device. The antenna structure includes a signal reference ground, a first radiation patch, a second radiation patch, and at least one feed probe. The feed probe is located between the first radiation patch and the ground. Each feed probe includes a first end and a second end. A projection position of the first end on a plane of the signal reference ground is outside a projection area of the first radiation patch on the plane of the signal reference ground is located, and a projection position of the second end on the plane of the signal reference ground is inside the projection area of the first radiation patch on the plane of the signal reference ground. The second end is electrically connected to the signal reference ground.

An antenna structure, a circuit board with an antenna structure, and a communications device. The antenna structure includes a signal reference ground, a first radiation patch, a second radiation patch, and at least one feed probe. The feed probe is located between the first radiation patch and the ground. Each feed probe includes a first end and a second end. A projection position of the first end on a plane of the signal reference ground is outside a projection area of the first radiation patch on the plane of the signal reference ground is located, and a projection position of the second end on the plane of the signal reference ground is inside the projection area of the first radiation patch on the plane of the signal reference ground. The second end is electrically connected to the signal reference ground.

A base station antenna includes a first plurality of first frequency band radiating elements that are arranged as a first linear array of first frequency band radiating elements and as a second linear array of first frequency band radiating elements. The second linear array of first frequency band radiating elements is adjacent the first linear array of first frequency band radiating elements. A first subset of the first plurality of first frequency band radiating elements are slant +/−45° cross-dipole radiating elements that each include at least one −45° dipole arm and at least one +45° dipole arm, and a second subset of the first plurality of first frequency band radiating elements are H/V cross-dipole radiating elements that each include at least one horizontal dipole arm and at least one vertical dipole arm.

Provided is a dual polarized folded dipole element 1 including: four center portions 20 arranged adjacent to each other; and an element portion including two parallel wire portions 22, 23 extending in parallel to each other from different adjacent two of the center portions 20 and a short circuit portion 24 that short-circuits each two parallel wire portions 22, 23 at a distal end, in which: adjacent two of the center portions are physically connected to each other by the element portion; and the element portion extends in substantially the same plane in four directions from the center portions 20 with an angle of 90° therebetween. Also provided are antennae 10 and 10′ including the dual polarized folded dipole element 1.

Provided is a dual polarized folded dipole element 1 including: four center portions 20 arranged adjacent to each other; and an element portion including two parallel wire portions 22, 23 extending in parallel to each other from different adjacent two of the center portions 20 and a short circuit portion 24 that short-circuits each two parallel wire portions 22, 23 at a distal end, in which: adjacent two of the center portions are physically connected to each other by the element portion; and the element portion extends in substantially the same plane in four directions from the center portions 20 with an angle of 90° therebetween. Also provided are antennae 10 and 10′ including the dual polarized folded dipole element 1.

An antenna device according to an embodiment includes an array antenna including a plurality of antenna elements, a first flexible printed circuit board (FPCB) including a plurality of first transmission lines which are electrically connected to the plurality of antenna elements and have different lengths, and a radio frequency integrated circuit (RFIC) electrically connected to the plurality of first transmission lines.

This application provides a lens antenna, a detection apparatus, and a communications apparatus. The lens antenna includes a feed source, a radio frequency switch, at least two narrow beam radiation units, and a wide beam radiation unit. The feed source may selectively feed any narrow beam radiation unit or the wide beam radiation unit by using the radio frequency switch.

The narrow beam radiation unit or the wide beam radiation unit may be connected to the feed source by switching of the radio frequency switch. A first radiation region of the wide beam radiation unit covers a second radiation region of each narrow beam radiation unit. The wide beam radiation unit includes a plurality of radiation sub-units, and the plurality of radiation sub-units are connected to the radio frequency switch by using a power splitter. In this way, radiation of the plurality of radiation sub-units forms a wide beam.