Mobile communication terminal with bluetooth antenna

Abstract

The invention discloses a mobile communication terminal with a Bluetooth antenna, comprising a casing and a PCB circuit board. A piece of copper foil is covered on a PCB signal feed point; the other part of the copper foil exceeding the covered signal feed point is contacted with a surrounding mainboard; the Bluetooth antenna is fixed on an inner wall of the mobile casing; and the Bluetooth antenna feed point is connected with the PCB signal feed point via the copper foil; the design of the invention is mainly used in the miniaturization mobile phones, and the clutter signal prone to disturb the antenna is filtered by processing the feeding circuit.

Description

Technical field [0001] The invention belongs to the technical field of mobile communication terminals, and more specifically relates to a mobile communication terminal with short-distance wireless transmission in the Bluetooth frequency band. Background technique [0002] The current mobile communication terminals are required to be miniaturized, thinner and more versatile. In response to this demand, a trend is that various terminals have integrated Bluetooth functions. [0003] Bluetooth technology is actually a short-range radio technology. The use of "Bluetooth" technology can effectively simplify the communication between mobile communication terminal devices such as palmtops, notebook computers, and mobile phones. It can also successfully simplify the communication between these devices and The communication between the Internet makes the data transmission between these modern communication devices and the Internet more rapid and efficient, and broadens the way for wireless ...

AI Technical Summary

Problems solved by technology

At present, small electronic products such as Bluetooth antennas in mobile phones generally use patch antennas that are easy to mount, requiring a relatively large space. It is difficult to meet the space requirements in the structure of many terminals, and the smaller the space left for the antenna inside the mobile phone, the Bluetooth The antenna is more affected by the surrounding structural parts and functional devices

Since the radiation efficiency of the Bluetooth antenna is generally relatively high, it is often interfered by other clocks in the system, which greatly reduces the performance of the antenna, so that even when the wireless power is relatively good, various noises can still be heard in Bluetooth communication

In this way, the effect of applying Bluetooth technology on actual products becomes very poor, and the ideal transmission distance cannot be achieved.

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