Switchable antenna module

Abstract

The invention discloses a switchable antenna module. The switchable antenna module comprises a substrate, a grounding part, a feed-in part, a main dipole antenna, a first diode, a capacitor, a seconddiode, an auxiliary dipole antenna and an inductor. The feed-in part and the grounding part are respectively arranged on the upper surface and the lower surface of the substrate. The feed-in part is used for providing a radio frequency signal and a direct current conduction voltage. The main dipole antenna and the auxiliary dipole antenna are located on the left side and the right side of the grounding part, a first main arm of the main dipole antenna is arranged on the upper surface and connected with the feed-in part, and a second main arm of the main dipole antenna is arranged on the lowersurface and connected with the grounding part. The anode and the cathode of the first diode are respectively connected with the first main arm and the second main arm. The capacitor is electrically connected between the first main arm and the second main arm. The anode of the second diode is connected with the feed-in part. A first auxiliary arm of the auxiliary dipole antenna is arranged on the upper surface and is connected with the cathode of the second diode, and a second auxiliary arm is arranged on the lower surface and is connected with the grounding part. The inductor is electrically connected between the first auxiliary arm and the second auxiliary arm. According to the invention, the effect of radiation field pattern switching can be achieved.

Description

technical field [0001] The invention relates to an antenna module, in particular to a switchable antenna module. Background technique [0002] The radiation pattern of the antenna varies according to the basic working principle of the antenna. Various radiation patterns have different applications. For example, the omnidirectional radiation pattern is suitable for the terminal device so that the terminal device can receive wireless signals from all directions. Signal. For another example, base station antennas, such as wireless access point antennas, may need to be able to generate radiation patterns in specific directions, so as to perform wireless communication with terminal devices located in various specific locations. [0003] Generally speaking, although an array antenna can be used to control a specific radiation pattern, the control circuit of the array antenna (including switches, phase control, and feeding network, etc.) introduces more problems of transmission lo...

AI Technical Summary

Problems solved by technology

Furthermore, especially in the case of current electronic devices that require light, thin, and small antennas, the area of ​​the circuit fed into the network may be larger than the antenna array, making it difficult to reduce the overall size of the antenna array module, making it difficult to reduce the overall size of the antenna array module. Substantial increase in the manufacturing cost of antenna products

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