Various examples describe systems and methods for dynamically and simultaneously assigned channels among multiple nodes in a network that communicates using multiple communication protocols. Aspects of the exemplary examples may include a wireless hub comprising an RF front end receiver that can capture, demodulate and decode a pre-defined band in its entirety. The wireless hub can include one or more medium access control algorithms for assigning channels for multiple nodes to access the predefined band while reduces contention between the nodes that are communicating with the wireless hub.

Disclosed is an electronic device including a first antenna element configured selectively to receive signals of a first frequency band and a second frequency band or of the first frequency band and a third frequency band, a second antenna element configured to receive a signal of the third frequency band, a transceiver configured to be electrically connected with the first antenna element and the second antenna element, and a processor configured to be electrically connected with the transceiver. The electronic device performs carrier aggregation using the second frequency band and the third frequency band.

Provided according to an embodiment is a vehicle-mounted antenna system. The antenna system may comprise: a circuit board; a heat sink configured to have an aperture region above the circuit board and be fixed to the circuit board through a fixing portion; and a coupling feed portion configured to be connected to the circuit board and radiate a signal to the aperture region.

A radio-frequency module includes multiple external connection terminals. The multiple external connection terminals include an antenna connection terminal connected to one end of a filter and another end of a filter, an antenna connection terminal connected to the one end of the filter, an antenna connection terminal connected to the other end of the filter, an antenna connection terminal connected to a duplexer and a transmission-reception filter via a switch, and an antenna connection terminal connected to a duplexer and a transmission-reception filter via the switch.

A wireless communication device including a processor; a memory, coupled to the processor, to store instructions, which when executed by the processor, cause the processor to: connect an antenna to an energy harvesting (EH) circuit, wherein the antenna is configured to capture a Wi-Fi radio frequency (RF) signal; send the Wi-Fi RF signal to the EH circuit; determine a RF signal strength of the Wi-Fi RF signal; and determine a location of the wireless communication device based on the RF signal strength.

A tunable RF transmit/receive (TX/RX) multiplexer, which includes a tunable RF TX/RX diplexing circuit and a first group of RF RX bandpass filters, is disclosed. The tunable RF TX/RX diplexing circuit has a first RX connection node and a first antenna port, which is coupled to a first RF antenna. Each of the first group of RF RX bandpass filters is coupled to the first RX connection node. At least two of the first group of RF RX bandpass filters simultaneously receive and filter respective RF input signals via the first RX connection node to provide respective filtered RF input signals.

Embodiments disclosed herein relate to reducing insertion loss in a transceiver while improving an operating efficiency of the transceiver. To do so, the transceiver may include isolation circuitry with harmonic distortion rejection circuitry, an electrostatic discharge filter, an out-of-band noise filter, and/or a matching network. In particular, the harmonic distortion rejection circuitry may enable a second harmonic signal to pass from a power amplifier of a transmitter of the transceiver to ground. The electrostatic discharge filter may also provide a path to ground for electrostatic discharge, and the out-of-band noise filter may provide a path to ground for noise signals. The isolation circuitry may substantially remove or decrease interference caused by undesirable signals while reducing a power consumption and thus improving an operating efficiency of the transceiver.

A method of communicating with a plurality of bands by using an electronic device including a plurality of antennas, an antenna system, and an electronic device is provided. The method includes providing a first or second band signal received via a first antenna to a first transceiver; receiving a first diversity signal for the second band signal via a second antenna and providing the received first diversity signal to a combiner via a signal divider connected to a second transceiver and the combiner; receiving a second diversity signal for the second band signal via a third antenna and providing the received second diversity signal to the combiner; and combining the first diversity signal and the second diversity signal in the combiner and providing the combined signal to a third transceiver connected to the third antenna.

Methods and systems for automated testing of extremely-high frequency devices are disclosed. A device under test (DUT) is set in a simultaneous transmit and receive mode. The DUT receives a lower frequency radio frequency (RF) signal from a test unit and up-converts the lower frequency RF signal to a higher frequency RF signal. The DUT transmits the higher frequency RF signal using a first antenna, and receives the higher frequency RF signal using a second antenna. The DUT down-converts the received higher frequency RF signal to a received test RF signal and provides the received test RF signal to the test unit for comparing measurements derived from the received test signal to a design specification for the DUT.

A high-frequency switch module (10) includes a switch element (20) and LC parallel resonant circuits (31 and 32). The switch element (20) includes selection target terminals (P14 and P21) used to transmit communication signals using different frequencies. The LC parallel resonant circuits (31 and 32) are connected between a connection conductor (901) connected to the selection target terminal (P14) and a connection conductor (902) connected to the selection target terminal (P21). The LC parallel resonant circuits (31 and 32) are connected in series between the connection conductors (901 and 902). The LC parallel resonant circuits (31 and 32) have different attenuation pole frequencies.