The present disclosure provides a dual-band external antenna for an unmanned aerial vehicle (UAV) and a UAV. The dual-band external antenna for the UAV includes a substrate, a low-frequency oscillator region, a high-frequency oscillator region, a feed coaxial line and ground terminals. Two ground terminals are respectively electrically connected to a feed terminal of the feed coaxial line. An avoidance region for arranging the feed coaxial line is disposed in the low-frequency oscillator region or the high-frequency oscillator region. The low-frequency oscillator region includes a first low-frequency oscillator region and a second low-frequency oscillator region. The high-frequency oscillator region includes a first high-frequency oscillator region and a second high-frequency oscillator region that are vertically asymmetrically disposed on the front and back sides of the substrate.

The present disclosure provides a dual-band external antenna for an unmanned aerial vehicle (UAV) and a UAV. The dual-band external antenna for the UAV includes a substrate, a low-frequency oscillator region, a high-frequency oscillator region, a feed coaxial line and ground terminals. Two ground terminals are respectively electrically connected to a feed terminal of the feed coaxial line. An avoidance region for arranging the feed coaxial line is disposed in the low-frequency oscillator region or the high-frequency oscillator region. The low-frequency oscillator region includes a first low-frequency oscillator region and a second low-frequency oscillator region. The high-frequency oscillator region includes a first high-frequency oscillator region and a second high-frequency oscillator region that are vertically asymmetrically disposed on the front and back sides of the substrate.

A smart ring includes an antenna chip and a metal ring used as an antenna, and the antenna chip is electrically connected to the metal ring to form an antenna circuit. The metal body of the smart ring is designed as a composition structure of the antenna circuit, that is, the antenna is integrated into the metal ring, the space for accommodating the antennas and the cost for additional physical antennas are saved, and the design flexibility and the competitiveness of the product are improved. Nickel-zinc ferrite is unnecessary, which can reduce the cost. The ring can keep the radiation characteristic of the circular antenna that is not susceptible to the interference from human body. The metal body of the ring is a metal structure, which can fulfill both of strength requirement and texture requirement of the structure, and at the same time has good antenna characteristics.

A smart ring includes an antenna chip and a metal ring used as an antenna, and the antenna chip is electrically connected to the metal ring to form an antenna circuit. The metal body of the smart ring is designed as a composition structure of the antenna circuit, that is, the antenna is integrated into the metal ring, the space for accommodating the antennas and the cost for additional physical antennas are saved, and the design flexibility and the competitiveness of the product are improved. Nickel-zinc ferrite is unnecessary, which can reduce the cost. The ring can keep the radiation characteristic of the circular antenna that is not susceptible to the interference from human body. The metal body of the ring is a metal structure, which can fulfill both of strength requirement and texture requirement of the structure, and at the same time has good antenna characteristics.

A system is described for distributing over the air (OTA) channels within buildings and homes. The system can implement one or more active multi-mode antennas for improved performance and reliability. The system can be configured as a mesh network where multiple nodes are distributed to improve the probability of channel capture across the VHF and UHF frequencies used for over the air TV distribution. A node consists of a beam steering antenna that operates at the VHF and UHF frequencies for TV signal reception, a receiver and demodulation circuit, a transcoder to convert the received information for re-distribution, and a transceiver capable of operation at a secondary frequency band for use in re-distributing the information to communication devices in proximity of the node. The secondary frequency band can be the common WLAN (Wireless Local Area Network) system such as Wi-Fi, with the Wi-Fi transceiver also containing beam steering antennas for improved in-building propagation of the re-distributed information.

A system is described for distributing over the air (OTA) channels within buildings and homes. The system can implement one or more active multi-mode antennas for improved performance and reliability. The system can be configured as a mesh network where multiple nodes are distributed to improve the probability of channel capture across the VHF and UHF frequencies used for over the air TV distribution. A node consists of a beam steering antenna that operates at the VHF and UHF frequencies for TV signal reception, a receiver and demodulation circuit, a transcoder to convert the received information for re-distribution, and a transceiver capable of operation at a secondary frequency band for use in re-distributing the information to communication devices in proximity of the node. The secondary frequency band can be the common WLAN (Wireless Local Area Network) system such as Wi-Fi, with the Wi-Fi transceiver also containing beam steering antennas for improved in-building propagation of the re-distributed information.

An antenna module including a first antenna and a second antenna close to the first antenna. The second antenna includes an isolation circuit and a second tuning switch controlling an access state of the isolation circuit. The second tuning switch includes two modes. When the second tuning switch is in a first mode, the isolation circuit accesses to a feeding network of the second antenna. When the second tuning switch is in a second mode, the isolation circuit does not access to the feeding network of the second antenna. Isolation of the first antenna and the second antenna in a preset band in the first mode is superior to that in the second mode.

An antenna module including a first antenna and a second antenna close to the first antenna. The second antenna includes an isolation circuit and a second tuning switch controlling an access state of the isolation circuit. The second tuning switch includes two modes. When the second tuning switch is in a first mode, the isolation circuit accesses to a feeding network of the second antenna. When the second tuning switch is in a second mode, the isolation circuit does not access to the feeding network of the second antenna. Isolation of the first antenna and the second antenna in a preset band in the first mode is superior to that in the second mode.

Described are an antenna system for wireless communication and a method of configuration thereof. The antenna system can include a first radiator having a first resonance frequency, a second radiator having a second resonance frequency different from the first resonance frequency, a first electromagnetic coupler associated with the first radiator and a first frontend, a second electromagnetic coupler associated with the second radiator and a second frontend, and a switch. The switch can be configured to connect the first electromagnetic coupler and the second electromagnetic coupler in an inter antenna aggregation configuration in a first mode of operation. The switch can also be configured to connect the first electromagnetic coupler and the second electromagnetic coupler in an intra antenna aggregation configuration in a second mode of operation.

Described are an antenna system for wireless communication and a method of configuration thereof. The antenna system can include a first radiator having a first resonance frequency, a second radiator having a second resonance frequency different from the first resonance frequency, a first electromagnetic coupler associated with the first radiator and a first frontend, a second electromagnetic coupler associated with the second radiator and a second frontend, and a switch. The switch can be configured to connect the first electromagnetic coupler and the second electromagnetic coupler in an inter antenna aggregation configuration in a first mode of operation. The switch can also be configured to connect the first electromagnetic coupler and the second electromagnetic coupler in an intra antenna aggregation configuration in a second mode of operation.