An antenna system is provided. The antenna system includes a first metal radiator, a second metal radiator, a first matching network, a second matching network, a first radio frequency path, and a second radio frequency path, wherein a tail end of the first metal radiator is connected with a first feed point of the antenna system and the first feed point is connected with the first radio frequency path through the first matching network; and a tail end of the second metal radiator is connected with a second feed point of the antenna system and the second feed point is connected with the second radio frequency path through the second matching network. A terminal including the antenna system is also provided.

An earbud system is described. The earbud system may include a primary earbud having a primary antenna. The earbud system may further include a secondary earbud having a secondary antenna. The primary antenna may have a higher effective radiation area than the secondary antenna. The secondary antenna may have a higher gain than the primary antenna.

An antenna apparatus includes two feeding parts, a filter matching network, and a radiator. The filter matching network includes a first port, a second port, and a third port. A first feeding part is electrically connected to the first port, a second feeding part is electrically connected to the second port, and the radiator is electrically connected to the third port. The first feeding part is configured to feed a low frequency signal and an intermediate frequency signal, the second feeding part is configured to feed a high frequency signal, the low frequency signal, the intermediate frequency signal, and the high frequency signal are respectively fed into the filter matching network by using the first feeding part and the second feeding part, and the filter matching network is configured to improve isolation between the low frequency signal and the intermediate frequency signal, and the high frequency signal.

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.

The disclosure applies to the field of antenna technology, which provides an antenna oscillator and a planar antenna. The antenna oscillator has a plate-like structure and includes a first resonance part and a second resonance part connected to the first resonance part, the first resonance part and the second resonance part is provided with a first resonance window and a second resonance window, respectively. The first resonance window and the second resonance window have different effective sizes and the antenna oscillator is further provided with a connecting slit.

The disclosure applies to the field of antenna technology, which provides an antenna oscillator and a planar antenna. The antenna oscillator has a plate-like structure and includes a first resonance part and a second resonance part connected to the first resonance part, the first resonance part and the second resonance part is provided with a first resonance window and a second resonance window, respectively. The first resonance window and the second resonance window have different effective sizes and the antenna oscillator is further provided with a connecting slit.

An antenna structure includes a metal frame. The metal frame includes a first gap, a second gap, a third gap, and a fourth gap to separate a first antenna, a second antenna, a third antenna, and a fourth antenna from the metal frame. The metal frame includes a fifth antenna. The first antenna, the second antenna, the third antenna, and the fourth antenna cooperatively form a first multiple-input multiple-output (MIMO) antenna to provide a 44 multiple-input multiple-output function in a second frequency band. The first antenna, the second antenna, the third antenna, and the fifth antenna cooperatively form a second MIMO antenna to provide a 44 multiple-input multiple-output function in a third frequency band. The first antenna and the third antenna cooperatively form a third MIMO antenna to provide a 22 multiple-input multiple-output function in a first frequency band.

An antenna structure includes a metal frame. The metal frame includes a first gap, a second gap, a third gap, and a fourth gap to separate a first antenna, a second antenna, a third antenna, and a fourth antenna from the metal frame. The metal frame includes a fifth antenna. The first antenna, the second antenna, the third antenna, and the fourth antenna cooperatively form a first multiple-input multiple-output (MIMO) antenna to provide a 44 multiple-input multiple-output function in a second frequency band. The first antenna, the second antenna, the third antenna, and the fifth antenna cooperatively form a second MIMO antenna to provide a 44 multiple-input multiple-output function in a third frequency band. The first antenna and the third antenna cooperatively form a third MIMO antenna to provide a 22 multiple-input multiple-output function in a first frequency band.

A wrist-worn electronic device comprises a housing, a printed circuit board, a location determining element, a first electrically conductive element, a second electrically conductive element, and a first loop antenna. The housing includes a side wall formed at least in part from an electrically conductive material and including an isolation portion formed from non-conductive material extending from an upper edge of the side wall to a lower edge of the side wall. The printed circuit board retains a first and second signal terminals. The location determining element receives a first electronic signal from the first signal terminal. The first loop antenna is formed by the first electrically conductive element, the second electrically conductive element, a first portion of a perimeter of the side wall, and a first circumferential portion of the printed circuit board.

A wrist-worn electronic device comprises a housing, a printed circuit board, a location determining element, a first electrically conductive element, a second electrically conductive element, and a first loop antenna. The housing includes a side wall formed at least in part from an electrically conductive material and including an isolation portion formed from non-conductive material extending from an upper edge of the side wall to a lower edge of the side wall. The printed circuit board retains a first and second signal terminals. The location determining element receives a first electronic signal from the first signal terminal. The first loop antenna is formed by the first electrically conductive element, the second electrically conductive element, a first portion of a perimeter of the side wall, and a first circumferential portion of the printed circuit board.