Aac Technologies Pte. Ltd.

Dawei Shi

Kai Dong

Yufei Zhu

Mingjun Hang

The present disclosure discloses an antenna system. The antenna system includes a circuit board having a feeding point, an RF switch, and a system ground. The antenna further includes a feeding portion electrically connected to the feeding point, a ground portion connected to the system ground by the RF switch, and a connecting portion connecting the feeding portion to the ground portion. The ground portion includes a first metal segment for connecting to the connecting portion, and a second metal segment; the feeding portion includes a third metal segment and a fourth segment. The RF switch electrically connects to the second metal segment, and the feeding point electrically connects to the fourth segment.

Antenna system and mobile terminal using same

The present disclosure discloses an antenna system with decreased SAR. The antenna system includes a circuit board having a feeding point, an RF switch for making the antenna system work under a number of working modes with different frequency bands, and a system ground. The antenna further includes a radiation body including a feeding portion electrically connected to the feeding point, a ground portion connected to the system ground by the RF switch, and a connecting portion connecting the feeding portion to the ground portion. The ground portion includes a first metal segment for connecting to the connecting portion, and a second metal segment; the feeding portion includes a third metal segment and a fourth segment. The RF switch electrically connects to the second metal segment, and the feeding point electrically connects to the fourth segment. A method for decreasing the SAR value is also provide.

Antenna system with decreased SAR value

A mobile communication device is provided. The mobile communication device includes: a metal housing, a diversity antenna unit, an integrated antenna unit, a first main antenna unit, a second main antenna unit, and a main board. Compared with the related art, with the antenna system provided by the present disclosure, the diversity antenna unit, the integrated antenna unit, the first main antenna unit, and the second main antenna unit constitute 4&#xd7;4 MIMO of an LTE Band3 and an LTE Band7, so that performance of the medium frequency and high frequency is improved; and the integrated antenna unit and the second main antenna unit constitute 2&#xd7;2 MIMO of the Wi-Fi5G, so that performance of the Wi-Fi5G is improved.

Antenna system and mobile terminal

An antenna system applied to a mobile terminal. The mobile terminal comprises a back shell, a main board received in the back shell, a bracket arranged between the back shell and the main board, and a metal wiring arranged on the surface of the bracket. A clearance area is arranged at one end of the main board; an orthographic projection of the metal wiring on the main board is located in the clearance area. The main board is provided with a grounding switch and a feeding point. The metal wiring comprises a body part, a first branch for generating low-frequency resonance, a second branch for generating high-frequency resonance and a third branch for generating medium-frequency resonance. The first branch, the second branch and the third branch respectively extend from the body part to two sides. The grounding switch and the feeding point are connected with the body part.

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Shenzhen, China

Dawei Shi