A dual polarized antenna feed system can include a first single polarized antenna feed element oriented on a first axis relative to a polarization filter and a second single polarized antenna feed element oriented on a second axis relative to the polarization filter such that the first and second axes are not common and not parallel. The polarization filter can include a plurality of conductors, a polarization of the first single polarized antenna feed element can be parallel to the plurality of conductors so that the polarization filter can reflect a majority of incident signals originating from the first single polarized antenna feed element, and a polarization of the second single polarized antenna feed element can be orthogonal to the plurality of conductors so that the polarization filter can be transparent to a majority of incident signals originating from the second single polarized antenna feed element.

A wireless charging transmit end is provided in this application, which includes a dual-polarized antenna which includes at least one dual-polarized element and a signal processing apparatus. Each dual-polarized element includes a first linearly polarized element and a second linearly polarized element that are mutually orthogonal and respectively receive a first wireless signal and a second wireless signal from the receive end. The signal processing apparatus obtains a first energy signal and a second energy signal based on a waveform relationship between the first wireless signal and the second wireless signal. The first energy signal is sent to the receive end by the first linearly polarized element, and the second energy signal is sent to the receive end by the second linearly polarized element. The first energy signal and the second energy signal are combined into an energy signal matching the receive end.

A wireless charging transmit end is provided in this application, which includes a dual-polarized antenna which includes at least one dual-polarized element and a signal processing apparatus. Each dual-polarized element includes a first linearly polarized element and a second linearly polarized element that are mutually orthogonal and respectively receive a first wireless signal and a second wireless signal from the receive end. The signal processing apparatus obtains a first energy signal and a second energy signal based on a waveform relationship between the first wireless signal and the second wireless signal. The first energy signal is sent to the receive end by the first linearly polarized element, and the second energy signal is sent to the receive end by the second linearly polarized element. The first energy signal and the second energy signal are combined into an energy signal matching the receive end.

An electronic device includes at least one processor, a first antenna comprises a first conductive patch disposed on a first layer, a first transmission line disposed on the first layer and electrically connected to one point of the first conductive patch, a ground disposed on a second layer and a dielectric disposed on a third layer between the first layer and the second layer, the first conductive patch has a shape of a rectangle in which a first corner portion of the rectangle and a second corner portion of the rectangle are removed, and the at least one processor transmits and/or receives at least one of a first RF signal having a first polarization characteristic and a second RF signal having a second polarization characteristic.

An electronic device includes at least one processor, a first antenna comprises a first conductive patch disposed on a first layer, a first transmission line disposed on the first layer and electrically connected to one point of the first conductive patch, a ground disposed on a second layer and a dielectric disposed on a third layer between the first layer and the second layer, the first conductive patch has a shape of a rectangle in which a first corner portion of the rectangle and a second corner portion of the rectangle are removed, and the at least one processor transmits and/or receives at least one of a first RF signal having a first polarization characteristic and a second RF signal having a second polarization characteristic.

Aspects of the subject disclosure may include, for example, a polarization shifter including a lower substrate having disposed thereon first and second transmission lines for coupling to a feed network, an upper substrate having disposed thereon third and fourth transmission lines for respective communicative coupling to orthogonally-polarized elements of a radiating element, and a dielectric layer residing between the lower substrate and the upper substrate, the upper substrate being configured to mechanically couple to the radiating element, the dielectric layer coupling the first transmission line with the third transmission line and coupling the second transmission line with the fourth transmission line, the upper substrate being rotatable relative to the lower substrate to effect polarization adjusting for the radiating element to facilitate avoidance of interference or passive intermodulation (PIM). Other embodiments are disclosed.

A wireless tag communication device includes an antenna, a first maximum value acquiring unit, a second maximum value acquiring unit, a first minimum value acquiring unit, a second minimum value acquiring unit, and a polarization direction determining unit. The wireless tag communication device acquires, for each of n wireless tags provided on a sheet, a maximum value M1(k) of a received power intensity of the wireless tag when the radio wave is transmitted from the antenna to the sheet in a first polarization direction; acquires, for each of the wireless tags, a maximum value M2(k) of a received power intensity of the wireless tag when the radio wave is transmitted from the antenna in a second polarization direction that is different from the first polarization direction; acquires a minimum value m1 of M1(k); acquires a minimum value m2 of M2(k); and determines the polarization direction along which one of m1 and m2 that is not smaller is acquired as the polarization direction of the radio wave transmitted to the sheet.

A radio frequency (RF) polarizer includes a frame having a first side and a second side spaced apart from and opposite the first side, a first polarizer substrate attached to the first side and including a plurality of conductor patterns formed on a surface of the first polarizer substrate, and a second polarizer substrate attached to the second side. The first polarizer substrate and the second polarizer substrate are attached to the first side and the second side, respectively, under tension.

A radiating element is provided, for example for array antenna, having stacked resonant cavities of Pérot-Fabry type, of compact structure, a lower cavity being fed by excitation means, the radiating element being characterized in that corrugations are formed substantially below a first earth plane delimiting in its lower part the upper resonant cavity. A radiating element structure of improved compactness is also proposed, whose upper cavity is surmounted by a polarizing radome.

A radiating element is provided, for example for array antenna, having stacked resonant cavities of Pérot-Fabry type, of compact structure, a lower cavity being fed by excitation means, the radiating element being characterized in that corrugations are formed substantially below a first earth plane delimiting in its lower part the upper resonant cavity. A radiating element structure of improved compactness is also proposed, whose upper cavity is surmounted by a polarizing radome.