Diversity receiver front end systems with fixed impedance matching circuits to improve signal processing. The fixed impedance matching circuits can be configured to reduce out-of-band metrics such as noise figure and/or gain for a plurality of out-of-band frequency bands while reducing or not increasing above a certain threshold an in-band metric for the associated in-band frequency band. Each of a plurality of paths through the front-end systems can include fixed impedance matching circuits that accomplish this tuning to improve performance for the front-end systems.

Apparatus and methods for radio frequency front-ends are provided. In certain configurations, a radio frequency front-end includes ultrahigh band (UHB) transmit and receive modules employed for both transmission and reception of UHB signals via at least two primary antennas and at least two diversity antennas, thereby supporting both 44 receive MIMO and 44 transmit MIMO with respect to one or more UHB frequency bands, such as Band 42, Band 43, and/or Band 48. The radio frequency front-end can operate with carrier aggregation using one or more UHB carrier frequencies to provide flexibility in widening bandwidth for uplink and/or downlink communications.

An antenna sharing system and a terminal. The antenna sharing system comprises a communication module, and the communication module supports 5 GHz Wi-Fi and LTE. The antenna sharing system further comprises a first antenna and a first multiplexer; the first multiplexer at least comprises two multiplex input ends and a multiplex output end, a first multiplex input end of the first multiplexer is used for receiving and transmitting 5 GHz Wi-Fi secondary signals, a second multiplex input end of the first multiplexer is used for receiving and transmitting LTE secondary signals, and the multiplex output end of the first multiplexer is connected to the first antenna. The solution of the present invention can effectively improve the antenna utilization, and reduce the influences on data throughput of Wi-Fi and LTE while reducing the number of antennas.

A wireless device comprising a first antenna and second antenna, a transceiver and a radio frequency front end system electrically coupled between the transceiver and the antennas. The RF front end system includes a first module operable to provide a high band transmit signal to the first antenna, receive a first high band receive signal and a first mid band receive signal from the first antenna. The first high band receive signal has a frequency range greater than that of the first mid band receive signal. The RF front end system further includes a second module operable to provide a mid band transmit signal to the second antenna, receive a second mid band receive signal and a second high band receive signal from the second antenna. The second high band receive signal has a frequency range greater than that of the second mid band receive signal.

Aspects of the present disclosure generally pertains a system and method for wireless inter-networking between a wireless wide area network (WWAN) and a local area network (WLAN) employing one or more extended range wireless inter-networking devices. Aspects of the present disclosure more specifically are directed toward a high powered wireless interconnect device that includes high efficiency circuitry to make it possible to implement in a portable or in-vehicle form factor, which may provide reasonable battery life, size, weight, and thermal dissipation.

According to one embodiment, an electronic device comprises a first antenna includes first antenna elements on a first planar substrate, a second antenna includes second antenna elements on a second planar substrate, an orientation of the second planar substrate being different from an orientation of the first planar substrate, and a circuit that forms a first beam pattern using the first antenna elements, forms a second beam pattern using the second antenna elements, and forms a first combined beam pattern using some of the first antenna elements and some of the second antenna elements.

According to one embodiment, an electronic device comprises a first antenna includes first antenna elements on a first planar substrate, a second antenna includes second antenna elements on a second planar substrate, an orientation of the second planar substrate being different from an orientation of the first planar substrate, and a circuit that forms a first beam pattern using the first antenna elements, forms a second beam pattern using the second antenna elements, and forms a first combined beam pattern using some of the first antenna elements and some of the second antenna elements.

A wireless device comprising a first antenna and second antenna, a transceiver and a radio frequency front end system electrically coupled between the transceiver and the antennas. The RF front end system includes a first module operable to provide a high band transmit signal to the first antenna, receive a first high band receive signal and a first mid band receive signal from the first antenna. The first high band receive signal has a frequency content greater than that of the first mid band receive signal. The RF front end system further includes a second module operable to provide a mid band transmit signal to the second antenna, receive a second mid band receive signal and a second high band receive signal from the second antenna. The second high band receive signal has a frequency content greater than that of the second mid band receive signal.

A diversity receiver and a terminal are provided. The diversity receiver includes a first main channel and a first diversity channel, the first main channel includes an antenna diplexer and a first main transmission channel, and the first diversity channel includes a tunable bandpass filter and a first diversity receiving channel. The first diversity receiving channel is coupled to a diversity antenna by using the tunable bandpass filter, and the tunable bandpass filter is configured to: adjust a passband bandwidth of the tunable bandpass filter according to a band bandwidth of a first transmit signal generated by the first main transmission channel and a band bandwidth of a first receive signal received from the diversity antenna, and perform bandpass filtering based on the passband bandwidth on the first receive signal.

An antenna system includes an array of antenna elements, each element including: one or more first terminals and second terminals that receive a vertically polarized wireless signal and a horizontally polarized wireless signal, respectively, at a radio frequency; a first signal combining circuit and a second signal combining circuit that combine the horizontally polarized wireless signal and the horizontally polarized wireless signal to obtain a combined vertically polarized signal and a combined horizontally polarized signal, respectively; a first frequency converting circuit and a second frequency converting circuit that convert the combined vertically polarized signal and the combined horizontally polarized signal to a baseband vertically polarized signal and a baseband horizontally polarized signal, respectively, at a frequency different from the radio frequency; a baseband processing circuit that combines the baseband vertically polarized signal and the baseband horizontally polarized signal after a 90 phase shift to obtain an LHCP or RHCP signal.