Title:
PENTA-BAND INTERNAL ANTENNA AND MOBILE COMMUNICATION TERMINAL THEREOF
Document Type and Number:
WIPO Patent Application WO/2012/071967
Kind Code:
A1
Abstract:
Disclosed are a penta-band internal antenna and a mobile communication terminal thereof. The internal antenna comprises: a first high-frequency branch, a second high-frequency branch, and a low-frequency branch of an antenna radiating element, and a first slotted hole and a second slotted hole arranged on a printed circuit board. The first slotted hole is arranged along the direction perpendicular to the flow of current of the printed circuit board. The open end of the low-frequency branch fits into the first slotted hole; the open end of the second high-frequency branch fits into the second slotted hole. Because the addition of the slotted holes is employed on the printed circuit board to adjust the low-frequency resonance thereof, the low-frequency resonance is brought towards the center frequency of the low-frequency branch, and the printed circuit board is excited via capacitance coupling to generate a resonance. The second slotted hole is exited via capacitance coupling into resonating, and combines with the first high-frequency branch to form a high-frequency bandwidth. A frequency shift caused by the terminal being held in a user's hand is compensated, and the characteristics of the mobile communication terminal when operating in a hand-held mode are optimized. Relatively expansive bandwidth is thereby accommodated in a limited space, and the needs of mobile communication terminal miniaturization development are met.
Inventors:
ZHANG, Lian (No.23 Zone, Zhongkai High-technology Development Zone Huichen, Huizhou Guangdong 6, 516006, CN)
Application Number:
CN2011/081835
Publication Date:
June 07, 2012
Filing Date:
November 05, 2011
Export Citation:
Assignee:
HUIZHOU TCL MOBILE COMMUNICATION CO., LTD (No.23 Zone, Zhongkai High-technology Development Zone Huichen, Huizhou Guangdong 6, 516006, CN)
惠州TCL移动通信有限公司 (中国广东省惠州市惠城区仲凯高新技术开发区23号, Guangdong 6, 516006, CN)
惠州TCL移动通信有限公司 (中国广东省惠州市惠城区仲凯高新技术开发区23号, Guangdong 6, 516006, CN)
International Classes:
H01Q1/36; H01Q5/01; H04M1/02
Attorney, Agent or Firm:
JOHNSON INTELLECTUAL PROPERTY AGENCY (SHENZHEN) (Room 308-309, Knowledge Service BuildingNo.1, Qilin Road, Nansha, Shenzhen Guangdong 2, 518052, CN)
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Claims: