A method for both electromagnetic compatibility and omnidirectional radiated power of small terminal mobile phone antennas

Abstract

The invention discloses a method for considering electromagnetic compatibility and omnidirectional radiation power of a small-size terminal cell phone antenna. A first coupled antenna and a second coupled antenna, which are similar to an L shape, are arranged; the first coupled antenna is arranged at the left side of a cell phone and a feed point of the first coupled antenna is arranged in a middle region of a main board; and the second coupled antenna is arranged above the cell phone and a feed point of the second coupled antenna is arranged in an upper left corner region of the main board. Cabling parts of the first coupled antenna and the second coupled antenna are respectively provided with two outward square bulges and the feed points are grounding points. The length of each coupled antenna is approximate to a quarter of the wavelength of a frequency band of which the electromagnetic compatibility needs to be improved. According to the invention, the two coupled antennas which are similar to the L shape and are arranged at the left side and above the cell phone have complementary effect; the L-shaped coupled antennas can disperse the current distribution of the main board to disperse hot points, thus achiving the effect of improving the electromagnetic compatibility; and meanwhile, the coupled antenna has a simple structure, almost has no addition values and has broad spectrum applicability.

Description

technical field [0001] The invention relates to a method for taking into account the electromagnetic compatibility and omnidirectional radiation power of a small terminal mobile phone antenna. Background technique [0002] With the development of wireless technology, wireless communication products such as mobile phones have gradually entered the 3G era. These wireless communication products have the functions of taking pictures and 3G wireless Internet access. One hundred million people, this is an iconic moment. At the same time, higher requirements are placed on the electromagnetic compatibility of electronic products such as mobile phones. The Federal Communications Commission (FCC) of the United States requires testing and improving the electromagnetic compatibility of mobile phones and hearing aids to help people wearing hearing aids avoid the electromagnetic interference generated by mobile phones from being coupled in the hearing aids during the call process, result...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the electromagnetic compatibility problem of existing small terminals such as hearing aids and mobile phones, the present invention proposes a design scheme that takes into account the HAC and TRP methods of small terminal mobile phone antennas

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