Chiun Mai Communication Systems, Inc.

Chang-Ching Huang

Tun-Yuan Tsou

Shu-Wei Jhang

Yi-Te Chou

Cho-Kang Hsu

Hsi-Chieh Chen

Chang-Je Chen

Yung-Chin Chen

An antenna module and a wireless communication device are provided, the antenna module includes a first circuit board, a second first circuit board, a radiation cover, a first radiating portion, and a second radiating portion. The radiation cover covers one part of an end of the first circuit board and one part of two opposite surfaces of the first circuit board. The first radiating portion is arranged on the first circuit board and perpendicular to the second circuit board, the first radiating portion receives wireless radiation signals in a first frequency band through the radiation cover. The second radiating portion is arranged on the first circuit board and includes a first radiating section and a second radiating section connected to the first radiating section in a predetermined angle, the second radiating portion receives wireless radiation signals in a second frequency band through the radiation cover.

Antenna module and wireless communication device having same

An antenna structure of few components and reduced size which functions by switching between components to achieve radiation in three different frequency bands includes two radiating portions, a feeding portion, a matching circuit, and a first switching circuit. With the first switching circuit closed, current flows along a first radiating portion to activate a first frequency band. A second radiating portion obtains the current from the first switching circuit by coupling with the first radiating portion, to activate a second frequency band. Current in the first radiating portion can activate a third frequency band. With the first switching circuit open, current in the first radiating portion activates radiation in the first frequency band. The second radiating portion can radiate in second frequency band by coupling current from the first radiating portion. Frequency multiplication of the first frequency band can activate the third frequency band.

Antenna structure and wireless communication device using the same

An antenna structure includes a housing, a feed portion, a ground portion, a first radiator, and a second radiator. The housing includes a first radiating portion and a second radiating portion. The first radiator and the second radiator are both positioned in the housing. When the feed portion feeds current, the current flows through the first radiating portion and is grounded through the ground portion to activate a first operating mode. When the feed portion feeds current, the current is further coupled to the first radiator through the first radiating portion, and the first radiator activates a second operating mode. When the second radiator feeds current, the second radiator activates a third operating mode. When the second radiator feeds current, the current is further coupled to the second radiating portion through the second radiator, and the second radiating portion activates a fourth operating mode.

An exemplary antenna module includes a metal unit, a ground unit, a feed unit, and a resonating unit. The metal unit is a metal housing or a metal sidewall of a wireless communication device. One end of the ground unit is connected to the metal unit and another end of the ground unit is grounded. One end of the feed unit is connected to the metal unit and another end of the feed unit is connected to a feed point of the wireless communication device. The resonating unit and the metal unit cooperatively generate a resonating, thereby receiving/sending wireless signals in corresponding frequency bands.

Growing community of inventors

Taipei, Taiwan

Chang-Ching Huang