A printed antenna and terminal equipment

Abstract

Embodiments of the present invention disclose a printed antenna, so as to increase power and a frequency band width of an antenna. The printed antenna includes a printed circuit board, an antenna pattern, and a signal feed-in point, where the antenna pattern is printed on a front surface of the printed circuit board, and the antenna pattern includes a first antenna pattern, a second antenna pattern, and a third antenna pattern; the signal feed-in point is connected to the second antenna pattern; one end of a side, which is laid out along an edge of the printed circuit board, of the first antenna pattern is connected to the second antenna pattern; the second antenna pattern is vertically laid out in parallel to an edge of the printed circuit board, where the second antenna pattern and the first antenna pattern form a non-closed rectangular; and the third antenna pattern includes a first part and a second part, where one end of the first part of the third antenna pattern is connected to the first antenna pattern, and one end of the second part of the third antenna pattern is connected to the second antenna pattern, and the first part and the second part are arranged in parallel in the non-closed rectangle.

Description

technical field [0001] The present invention relates to the technical field of wireless communication, and more particularly, to a printed antenna and terminal equipment. Background technique [0002] With the rapid development of mobile communication technology, the functions of terminal products are becoming more and more diversified, the product specifications tend to be miniaturized, and the requirements for terminal antennas are becoming more and more demanding and strict. At present, LTE (Long Term Evolution, long-term evolution) products are gradually starting to be commercialized, and some terminal products are also required to support LTE frequency bands. Since the bandwidth of the LTE frequency band is much wider than that of the previous 2G (2nd Generation, second-generation mobile communication technology) and 3G (3rd Generation, third-generation mobile communication technology), the LTE frequency band (698MHz~960MHz, 1710MHz~2690MHz ), which puts new requiremen...

AI Technical Summary

Problems solved by technology

Conventional antennas cannot meet the requirements of sufficient bandwidth. At the same time, due to the high requirements of LTE communication on antennas, the efficiency of antennas ((refers to the ratio of the power radiated by the antenna to the active power input to the antenna, and its value is always less than 1)) cannot Do it very low (low frequency at least 35%, high frequency at least 45%)

[0003] In the prior art, the prior art terminal antenna structure such as figure 1 As shown, 101 is a PCB (Printed Circuit Board, printed circuit board), 102 is an antenna pattern, and 103 is a signal feed-in point, which is used to connect the connection point between the antenna and the radio frequency circuit for signal feed-in Or feed out the signal, by printing the antenna on the PCB, although the size of the antenna is further reduced, the power of the antenna is low and the bandwidth is narrow

Furthermore, the RF circuit with an antenna must achieve double resonance of high frequency and low frequency by adding a matching circuit. Although the resonance point can be increased, the efficiency of the antenna cannot be improved, and the increase in bandwidth is also limited.

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