A method for active circuit antenna optimization includes recording a capacitance value at each frequency of a frequency range using one or more tuning capacitors, thereby generating a capacitor value frequency range. The method further includes creating one or more non-linear circuit designs in an RF circuit simulator. The one or more non-linear circuit designs match the capacitance value at each frequency of the frequency range recorded from the one or more tuning capacitors. The method then includes creating one or more non-linear circuits from the non-linear circuit design. Each tuning capacitor has a corresponding non-linear circuit where all the one or more non-linear circuits match the capacitor value frequency range of the one or more tuning capacitors.

An intra-element monolith has a plurality of impedance matching elements extending from a base. Shorting posts can be provided to couple the base to an inner portion of the respective impedance matching elements, each having a tapered section extending from a leg section spaced laterally from the base. Capacitive coupling structures can also be provided. The impedance matching elements are configured to define radiator, receiver or transmitter sites between similar, opposing impedance matching elements on adjacent instances of the monolithic element. The leg sections extending from a first adjacent pair of the impedance matching elements can be configured for coupling to a signal connector, and operable to be actively driven. The leg sections extending from a second adjacent pair of the impedance matching elements can be configured for coupling to ground, and operable to be excited by the opposing impedance matching elements.

An intra-element monolith has a plurality of impedance matching elements extending from a base. Shorting posts can be provided to couple the base to an inner portion of the respective impedance matching elements, each having a tapered section extending from a leg section spaced laterally from the base. Capacitive coupling structures can also be provided. The impedance matching elements are configured to define radiator, receiver or transmitter sites between similar, opposing impedance matching elements on adjacent instances of the monolithic element. The leg sections extending from a first adjacent pair of the impedance matching elements can be configured for coupling to a signal connector, and operable to be actively driven. The leg sections extending from a second adjacent pair of the impedance matching elements can be configured for coupling to ground, and operable to be excited by the opposing impedance matching elements.

A low-profile composite antenna device for vehicles includes a base plate, a circuit board, an antenna cover, a first element and a second element. The antenna cover has a ridgeline part whose longitudinal direction faces the vehicle traveling direction and a side surface part extending from both sides of the ridgeline part. The first element is arranged at the left side in the vehicle traveling direction, is inclined with respect to the base plate as viewed from the front side in the vehicle traveling direction and the upper end side thereof is arranged in a vicinity of the ridgeline part. The second element is arranged at the right side in the vehicle traveling direction, the upper end side thereof is arranged in the vicinity of the ridgeline part with a gap, and faces the first element from the ridgeline part toward the base plate.

Techniques are disclosed for configuring a broadband antenna system. An example electronic device includes a first antenna operating at a first frequency range and coupled to a first transceiver via a first signal path comprising a first indirect feed. The electronic device also includes a second antenna operating at a second frequency range and coupled to a second transceiver via a second signal path comprising a second indirect feed, wherein the first frequency range is lower than the first frequency range. The electronic device also includes a third antenna operating at the second frequency range and coupled to a third transceiver via a second signal path comprising a third indirect feed. Additionally, the first antenna is coupled to the first antenna and the second antenna by a capacitive coupling element.

Techniques are disclosed for configuring a broadband antenna system. An example electronic device includes a first antenna operating at a first frequency range and coupled to a first transceiver via a first signal path comprising a first indirect feed. The electronic device also includes a second antenna operating at a second frequency range and coupled to a second transceiver via a second signal path comprising a second indirect feed, wherein the first frequency range is lower than the first frequency range. The electronic device also includes a third antenna operating at the second frequency range and coupled to a third transceiver via a second signal path comprising a third indirect feed. Additionally, the first antenna is coupled to the first antenna and the second antenna by a capacitive coupling element.

The present invention provides an antenna structure, including a frame body, a first feed-in part, and a first connection part, where the frame body is at least partially made of a metal material, the frame body includes a first part and a second part, the second part is connected to one end of the first part, a length of the second part is greater than a length of the first part, a first slot is provided in the first part, a second slot is provided in the second part, a part of the frame body between the first slot and the second slot forms a first radiation part, the first feed-in part is disposed on the first radiation part and located on the first part of the frame body. The antenna structure can effectively improve low band radiation performance.

The present invention provides an antenna structure, including a frame body, a first feed-in part, and a first connection part, where the frame body is at least partially made of a metal material, the frame body includes a first part and a second part, the second part is connected to one end of the first part, a length of the second part is greater than a length of the first part, a first slot is provided in the first part, a second slot is provided in the second part, a part of the frame body between the first slot and the second slot forms a first radiation part, the first feed-in part is disposed on the first radiation part and located on the first part of the frame body. The antenna structure can effectively improve low band radiation performance.

An antenna structure includes a first antenna, a second antenna, at least one processor, a power distribution circuit configured to equally supply power supplied from the processor(s) to the first antenna and the second antenna, and a coupler disposed between the processor(s) and the power distribution circuit, wherein the processor(s) may obtain a first parameter for a first signal received by the first antenna and a second parameter for a second signal received by the second antenna, detect a phase difference between the first signal and the second signal, obtain a matching parameter based on parameters corresponding to a case in which the phase difference satisfies a specified condition among the first parameter and the second parameter, and obtain a third parameter for allowing a reflection coefficient of a signal flowing from the power distribution circuit to the coupler to exist within a specified range among the matching parameters.

An antenna structure includes a first antenna, a second antenna, at least one processor, a power distribution circuit configured to equally supply power supplied from the processor(s) to the first antenna and the second antenna, and a coupler disposed between the processor(s) and the power distribution circuit, wherein the processor(s) may obtain a first parameter for a first signal received by the first antenna and a second parameter for a second signal received by the second antenna, detect a phase difference between the first signal and the second signal, obtain a matching parameter based on parameters corresponding to a case in which the phase difference satisfies a specified condition among the first parameter and the second parameter, and obtain a third parameter for allowing a reflection coefficient of a signal flowing from the power distribution circuit to the coupler to exist within a specified range among the matching parameters.