High gain inverted F type antenna

Abstract

The invention discloses a multi-section high gain inverted F type antenna comprising a main radiation section, a signal conversion section and a secondary radiation section. The fold line part of the end of the main radiation section is utilized by the signal conversion section, the fold line length is strictly in accordance with the 1 / 2 wavelength rule of antenna signal frequency, thus the signal which arrives at the secondary radiation section returns to original phase, the consistence of the secondary radiation section with the radiation of the main radiation section is ensured, the signal is transmitted to the secondary radiation section to form second radiation, thus the radiation signals of the main radiation section and the secondary radiation section are overlapped, and a target of high gain is realized. The printing mode of flexible printed circuit board and the form of using die punching to obtain a metal piece structure can be used by the structure of the whole antenna, and the whole antenna also can be directly printed on the PCB for using.

Description

technical field [0001] The invention relates to an inverted-F antenna, in particular to an improved inverted-F antenna which can achieve a gain value exceeding conventional ones in a very small space. Background technique [0002] Now with the rapid development of mobile communications, the penetration rate of various mobile terminal devices in the society is increasing very fast, and based on the national policy of "three networks in one", the Internet, radio and television networks, and data communication networks will Merging one network, rich network information resources, allows individuals to obtain desired information through one network, and also enables enterprises to provide various forms of access to the network. Among them, the most convenient and fastest way is wireless access Because the wireless access method saves a lot of network laying costs, it can be quickly planned, installed, and put into use quickly, and the maintenance is relatively simple. Among the...

AI Technical Summary

Problems solved by technology

Among the wireless network users in the whole society, the mobile terminal users occupy the largest number. As the name suggests, the characteristics of mobile terminals are light, thin, and small. The biggest advantage is that they are portable and easy to use. Therefore, in order to meet the characteristics of this product, The corresponding built-in antenna needs to be equally light, thin, and small, and the performance of the antenna itself cannot be significantly reduced. Most of the current built-in antennas use the design form of the inverted F antenna (PIFA), but this antenna has a Very fatal defect, the gain is low, and the conventional omnidirectional average gain value cannot exceed 1.5dBi, which seriously affects the use effect of mobile terminal products in weak signal environments

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