Built-in antenna

Abstract

The embodiment of the invention discloses a built-in antenna, relates to the technical field of wireless communication, and solves the problem of poor signal performance of the built-in antenna. The built-in antenna provided by the embodiment of the invention comprises a dipole antenna and a radio frequency wire, wherein the dipole antenna comprises two vibrators which are arranged along the inside wall of a terminal shell; an inner conductor at one end of the radio frequency wire is connected to a radio frequency channel and an outer conductor is grounded; the inner conductor at the other end of the radio frequency wire is connected to one vibrator of the dipole antenna; and the outer conductor at the other end of the radio frequency wire is connected to the other vibrator of the dipole antenna. The built-in antenna provided by the embodiment of the invention can be used in various types of terminal equipment, and is used in fixed stations in normal situations.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a built-in antenna used in the wireless communication technology. Background technique [0002] In wireless communication technology, antennas are needed to transmit and receive signals, and current antennas are roughly divided into external antennas and internal antennas. The structure of the external antenna is as follows figure 1 As shown, the radio frequency line 11 connected to the radio frequency path on the motherboard is extended to the outside of the case, and then connected to the external antenna 13 with a matching connector 12 . Since the external antenna 13 needs to occupy a lot of external space, and needs to be equipped with accessories such as the radio frequency cable 11, the connector 12, and the external antenna 13, it will increase the cost and affect the appearance; therefore, the internal antenna has become a more commonly used antenna. [0...

AI Technical Summary

Problems solved by technology

[0004] In the process of using the above-mentioned built-in antenna, the inventor found that there are at least the following problems in the prior art: figure 1 As far as the external antenna is concerned, since the outer conductor of the RF line connected to the external antenna is directly grounded, and figure 2 The built-in antenna lacks the grounding outer conductor, but the function similar to grounding is completed through the main board, resulting in the uncertainty of the pattern of the built-in antenna, resulting in poor signal performance; in addition, due to figure 2 The built-in antenna is a monopole antenna, and the far end of the monopole antenna needs to be far away from the ground, so that the figure 2 When the device placement method in the method cannot ensure that the far end of the monopole antenna is far away from the ground, it will also cause uncertainty in the pattern of the built-in antenna, resulting in poor signal performance

Images