Device for adjusting frequency of antenna

Abstract

Being able to adjust operation frequency for plane inverse F type antenna or I type antenna, the disclosed antenna frequency adjustment device includes a slider, and plastic retention piece. The slider is clung to one side at end of radiation part of antenna to be adjusted. The plastic retention piece is fixed at installation part of antenna. The slider possesses contact part and control part. The contact part is contacted to one side at end of radiation part of antenna closely, and the control part is accommodated inside open slot of the retention piece partially. Manipulating the control part to move along the open slot can change size of radiation part of antenna covered by the contact part of the slider so as to reach purpose for adjusting antenna frequency. The adjustment device can adjust frequency of antenna to be adjusted to optimum working frequency easily.

Description

[0001] 【Technical field to which the invention belongs】 [0002] The invention relates to an antenna frequency adjustment device, in particular to an antenna frequency adjustment device which can be arranged on a Planar Inverted-F Antenna (PIFA) or an I-shaped antenna. 【Background technique】 [0003] With the rapid development of mobile communications, people increasingly hope that they can access the Internet anytime and anywhere with a notebook computer or other portable terminals. The wireless access mode based on GPRS (General Packer Radio Service, general packet radio service) and WLAN (Wireless Local Area Network, wireless local area network) satisfies this requirement of people to a certain extent. GPRS is a wireless network with wide area coverage, and its data transmission rate is about 30Kbps-50Kbps, while WLAN is a wireless network with local area coverage, and its data transmission rate can reach 11Mbps (based on 802.11b technology). People choose different wirele...

AI Technical Summary

Problems solved by technology

Moreover, the operating frequency of the planar inverted "F" antenna is also affected by the internal space and structure of the notebook computer or other portable terminals using the planar inverted "F" antenna. Therefore, the flat antenna specially designed for a notebook computer or other portable terminals The inverted "F" antenna is installed in other notebook computers or other portable terminals, and its working frequency may deviate, so it cannot reach the best working frequency. At this time, the antenna needs to be trimmed to make it reach the best working frequency

However, the above method of trimming the radiating part of the antenna to meet the requirements is not only time-consuming, labor-intensive, and inefficient, but also likely to be over-trimmed, which will make the radiating part of the antenna too small and become a waste product

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