Method for improving working frequency band width of antenna of small-sized terminal mobile phone

Abstract

The invention discloses a method for improving working frequency band width of an antenna of a small-sized terminal mobile phone. A monopole antenna is selected as the antenna of the small-sized terminal mobile phone to be arranged on the casing of a mobile phone terminal; the conductor routing at the high-frequency part of the antenna is arranged at the top of the whole antenna; a 1 / 4 wavelength theory is utilized to enable the conductor routings at the high and low frequency parts to satisfy the antenna tuning length; and the emission performance and the acceptability of the antenna can acquire more desired state through a matching circuit to tune the antenna, thus satisfying the requirement of over the air (OTA) of far-field radiation. In the method provided by the invention, the antenna different from the traditional printed circuit antenna and the monopole antenna are used, and a special antenna routing manner is adopted, thus ensuring that the method provided by the invention simultaneously satisfies the requirements of high-low frequency band width and the efficiency.

Description

technical field [0001] The invention relates to a mobile phone antenna, in particular to a method for increasing the working frequency bandwidth of a small terminal mobile phone antenna. Background technique [0002] With the increasing popularity of mobile phones, users have higher and higher requirements for the functions and appearance of mobile phones. Design requirements for miniaturization, personalization, ultra-thin, rotating screen, and multi-function are strong. Mobile phone antenna engineers are facing more intense challenges. Challenges, from the perspective of mobile phone antennas, mobile phones are getting smaller and more frequency bands, which brings greater design challenges. [0003] At present, the small built-in antennas widely used in mobile phones have little difference in radiation performance in all directions. From the perspective of the OTA test performance of the final machine, there are two very important performance indicators: efficiency and ba...

AI Technical Summary

Problems solved by technology

With the further popularization of mobile phones, users are no longer limited to the basic communication functions of mobile phones, and have become picky about the appearance and functions of mobile phones. Due to the limitation of the size, the traditional printed circuit board antenna solution obviously cannot meet the radio frequency requirements of the antenna. bring greater challenges

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