Automatic Switching of Smart Antenna Devices

Abstract

The invention discloses an automatic switching intelligent antenna device, which comprises an antenna module, a wireless chip, a microcontroller and an application unit. The antenna module includes a grounding part, a feeding part, a main antenna, a first diode, a capacitor, a second diode, a secondary antenna and an inductor. The feed-in part is connected with the main antenna, the anode of the first diode and the anode of the second diode, and is used for introducing radio frequency signal and DC conduction voltage. The cathode of the first diode is connected to the ground. The capacitor is connected between the main antenna and the ground. The cathode of the second diode is connected to the secondary antenna. The inductor is connected between the sub-antenna and the ground. The conducting first diode and the main antenna form a quarter-wavelength short-circuit line whose input impedance is close to infinity. The wireless chip is connected to the feed-in part to provide radio frequency signals. The microcontroller is connected to the feeding part to provide a direct-current conducting voltage. The application unit connects the wireless chip and the microcontroller to control the microcontroller. The invention can achieve the effect of antenna switching.

Description

technical field [0001] The invention relates to an antenna device, in particular to an automatic switching smart antenna device. 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...

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Problems solved by technology

Furthermore, especially in the case of current electronic devices that require light, thin, and small antennas, the circuit area 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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