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Mobile communication terminal

A mobile communication terminal and keyboard technology, applied in the field of wireless communication, can solve the problems of reducing the TRP and TIS indicators of mobile phone antennas, affecting the OTA performance of mobile phone antennas, etc., to achieve the effects of suppressing coupling, reducing impact, and improving performance

Inactive Publication Date: 2010-10-06
ZTE CORP
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

This antenna form and placement method make the antenna's requirements for the ground clearance area of ​​the printed circuit board PCB (Printed Circuit Board) board and the key design of the mobile phone keyboard form a contradiction, and due to the shape and size of the mobile phone, it must be in the ground clearance Keyboard buttons are set in the ground clearance area. Because there are keyboard buttons and antennas in the ground clearance area, the radio frequency signal of the antenna is transmitted on the connection path between the keyboard buttons and the chip of the mobile phone, resulting in the coupling between the antenna and the keyboard buttons, resulting in the transmission and reception of the antenna. The impact of the signal, thereby reducing the TRP and TIS indicators of the mobile phone antenna, affecting the OTA performance of the mobile phone antenna

Method used

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Embodiment Construction

[0013] In order to provide an implementation plan for improving the OTA performance of the antenna of the mobile communication terminal, the embodiment of the present invention provides a mobile communication terminal. The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred implementation described here Examples are only used to illustrate and explain the present invention, not to limit the present invention. And in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0014] An embodiment of the present invention provides a mobile communication terminal, such as figure 1 As shown, it includes a printed circuit board 110, which can be a multi-layer structure, such as a 4-layer, 6-layer or 8-layer structure; the printed circuit board 110 is divided into a paving area 101 and a ground cle...

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Abstract

The invention discloses a mobile communication terminal, which comprises a printed circuit board, a keyboard key and an antenna which are positioned in a ground clear zone of the printed circuit board, a chip in signal connection with the keyboard key, and an inductor connected in series between the chip and the keyboard key. The antenna OTA performance of the mobile communication terminal is improved by adopting the scheme provided by the invention.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a mobile communication terminal which improves the OTA (Over The Air) performance of an antenna space. Background technique [0002] For mobile communication terminals, such as mobile phones, the OTA performance of the antenna is an important indicator to measure the coupling performance of the mobile phone. The purpose is to verify the ability of communication equipment to connect to network signals and anti-interference. This index includes two aspects: transmit power and receive sensitivity, which are characterized by total isotropic radiated power TRP (Total Radiated Power) and total isotropic receive sensitivity TIS (Total Isotropic Sensitivity) in three-dimensional space. TRP refers to the average value of the maximum external transmit power of the transmitter in the three-dimensional space of the mobile phone, which reflects the transmission performance of t...

Claims

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Application Information

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IPC IPC(8): H04M1/02H04B1/38H05K1/02H01Q1/22
Inventor 潘雪明
Owner ZTE CORP
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