The invention concerns an antenna arrangement (1) comprising: a printed circuit board (2) having a metallised area (3) acting as a ground plane (3) in use, a recess portion (4) in an edge portion of the ground plane (3), a first electrically reactive network (9) bridging the recess portion (4)a second electrically reactive network (16) bridging the recess portion (4), separately from the first electrically reactive network (9), wherein an electrical length of the recess portion (4) is 1/10th of a wavelength of the resonance frequency of the antenna arrangement (1) or less, and wherein a physical distance between the first (9) and second (16) electrically reactive networks (9, 16) is less than 1/12 of a wavelength of the resonance frequency of the antenna arrangement (1). The invention also concerns a device comprising an antenna arrangement (1).

The invention concerns an antenna arrangement (1) comprising: a printed circuit board (2) having a metallised area (3) acting as a ground plane (3) in use, a recess portion (4) in an edge portion of the ground plane (3), a first electrically reactive network (9) bridging the recess portion (4)a second electrically reactive network (16) bridging the recess portion (4), separately from the first electrically reactive network (9), wherein an electrical length of the recess portion (4) is 1/10th of a wavelength of the resonance frequency of the antenna arrangement (1) or less, and wherein a physical distance between the first (9) and second (16) electrically reactive networks (9, 16) is less than 1/12 of a wavelength of the resonance frequency of the antenna arrangement (1). The invention also concerns a device comprising an antenna arrangement (1).

This application discloses a slot antenna and a terminal. The slot antenna includes a ground plane, an open slot disposed on the ground plane, a slot feeder, and a resonant circuit. The resonant circuit effectively excites a current on a surface of the ground plane, so that the ground plane becomes a primary radiator, and the antenna is a secondary radiator. Therefore, a volume of the antenna can be reduced without affecting radiation efficiency of the antenna.

This application discloses a slot antenna and a terminal. The slot antenna includes a ground plane, an open slot disposed on the ground plane, a slot feeder, and a resonant circuit. The resonant circuit effectively excites a current on a surface of the ground plane, so that the ground plane becomes a primary radiator, and the antenna is a secondary radiator. Therefore, a volume of the antenna can be reduced without affecting radiation efficiency of the antenna.

A signal processing circuit reduces die size and power consumption for each antenna element. The signal processing circuit includes a first set of ports, a third port, a first path, a second path and a first transistor. The first path is between a first port of the first set of ports and the third port. The second path is between a second port of the first set of ports and the third port. The first transistor is coupled between the first path and the second path. The first transistor is configured to receive a control signal to control the first transistor to adjust an impedance between the first path and the second path.

A signal processing circuit reduces die size and power consumption for each antenna element. The signal processing circuit includes a first set of ports, a third port, a first path, a second path and a first transistor. The first path is between a first port of the first set of ports and the third port. The second path is between a second port of the first set of ports and the third port. The first transistor is coupled between the first path and the second path. The first transistor is configured to receive a control signal to control the first transistor to adjust an impedance between the first path and the second path.

An information handling system to wirelessly transmit and receive data may include a processor; a memory; an input/output (I/O) device; a wireless adapter; a metal C-cover to house a speaker grill, the speaker grill covering a speaker to emit audio waves; the speaker grill formed within the C-cover to emit a target radio frequency (RF), including: a slot formed around an operative antenna portion of the speaker grill forming a peninsula of the speaker grill in the C-cover; an antenna cavity formed on a back side of the peninsula, the antenna cavity including walls formed around the cavity in the back side of the peninsula; and a tuning module operatively coupled to the speaker grill to excite the speaker grill and dynamically switch frequencies based on the target frequency to be emitted by the speaker grill

An electronic device for supporting carrier aggregation (CA) is provided. The electronic device includes a radio frequency integrated circuit (RFIC) including a plurality of mixers and a feedback circuit, at least one antenna, a coupler disposed between the RFIC and the at least one antenna to transfer a reflected signal of a transmission signal to the feedback circuit, and at least one processor operatively connected to the RFIC, wherein the at least one processor may identify whether there is a mixer which is not in use among the plurality of mixers, when the first mixer which is not in use among the plurality of mixers is identified, perform antenna impedance tuning through a first mixer and the feedback circuit, and when the plurality of mixers are all in use, perform the antenna impedance tuning through a second mixer assigned to a secondary cell (Scell) among the plurality of mixers and the feedback circuit.

An electronic device for supporting carrier aggregation (CA) is provided. The electronic device includes a radio frequency integrated circuit (RFIC) including a plurality of mixers and a feedback circuit, at least one antenna, a coupler disposed between the RFIC and the at least one antenna to transfer a reflected signal of a transmission signal to the feedback circuit, and at least one processor operatively connected to the RFIC, wherein the at least one processor may identify whether there is a mixer which is not in use among the plurality of mixers, when the first mixer which is not in use among the plurality of mixers is identified, perform antenna impedance tuning through a first mixer and the feedback circuit, and when the plurality of mixers are all in use, perform the antenna impedance tuning through a second mixer assigned to a secondary cell (Scell) among the plurality of mixers and the feedback circuit.

The present disclosure includes: an RFIC (110A) and an RFIC (110B) that are configured to respectively supply radio-frequency power to a first antenna group and a second antenna group; and a divider that divides a reference frequency signal input thereto and outputs the resulting first radio-frequency signals to the RFIC (110A) and the RFIC (110B). The divider is a Wilkinson-type first divider that is formed of a circuit system of a second impedance that is lower than a first impedance that is an impedance of signal transmission system into which the divider is inserted.