Abstract: Disclosed in the present disclosure is a miniaturized self-oscillating active integrated antenna system. The system includes at least one antenna array unit, and the antenna array unit includes an initial unit and multiple amplifying units which are stimulated to emit. The initial unit includes a first dielectric substrate and a first surface structure, the first surface structure is connected to a surface of the first dielectric substrate, and the first surface structure includes a first boat-shaped monopole antenna, a first switching transistor, a base bias network and a first direct current bias network. The amplifying unit includes a second dielectric substrate and a second surface structure, and the second surface structure is connected to a surface of the second dielectric substrate. The second surface structure includes a second boat-shaped monopole antenna, a second switching transistor, a first resistor and a second direct current bias network.

Abstract: Disclosed in the present disclosure is a miniaturized self-oscillating active integrated antenna system. The system includes at least one antenna array unit, and the antenna array unit includes an initial unit and multiple amplifying units which are stimulated to emit. The initial unit includes a first dielectric substrate and a first surface structure, the first surface structure is connected to a surface of the first dielectric substrate, and the first surface structure includes a first boat-shaped monopole antenna, a first switching transistor, a base bias network and a first direct current bias network. The amplifying unit includes a second dielectric substrate and a second surface structure, and the second surface structure is connected to a surface of the second dielectric substrate. The second surface structure includes a second boat-shaped monopole antenna, a second switching transistor, a first resistor and a second direct current bias network.

Abstract: This application relates to the field of wireless charging technologies. The wireless charging transmitting apparatus includes a transmit antenna array and a first controller. The wireless charging receiving apparatus includes a power receiving antenna and a second controller. When receiving a charging request signal, the first controller controls the transmit antenna array to successively switch to each polarization state to transmit a power signal. The second controller sends feedback information indicating a magnitude of energy obtained from the power signal. The first controller determines an optimal polarization state based on the feedback information, so that the transmit antenna array transmits a power signal in the optimal polarization state.

Abstract: A wireless charging apparatus of a wireless charging system obtains, in a charging period, channel information of a transmission channel and a waveform parameter used to indicate a waveform of an electromagnetic wave signal; generates a target electromagnetic wave signal based on the channel information and the waveform parameter; and sends the target electromagnetic wave signal to a to-be-charged device through the transmission channel. The channel information includes signal attenuation and a transmission delay that are of an electromagnetic wave signal transmitted through the transmission channel. The to-be-charged device converts the received target electromagnetic wave signal into a direct current signal, and performs charging based on the direct current signal. The target electromagnetic wave signal determined by the wireless charging apparatus can adapt to channel transmission.

Abstract: A remote wireless charging transmit end is configured to wirelessly charge a receive end. The transmit end includes a transmit end processor, a fundamental frequency-radio frequency conversion unit, and a transmit end antenna. The transmit end processor is configured to generate a composite signal based on a control signal and a power signal, and send the composite signal to the fundamental frequency-radio frequency conversion unit. The control signal is used to control a working status of the receive end, and the power signal is used to charge the receive end. The fundamental frequency-radio frequency conversion unit is configured to convert the composite signal into a radio frequency signal, and send the radio frequency signal to the transmit end antenna. The transmit end antenna is configured to transmit the radio frequency signal corresponding to the composite signal.