Radio Frequency Devices and Wireless Communication Devices

Abstract

A radio frequency device and a wireless communication device. The radio frequency device includes: a grounding component, which is used to provide grounding; an antenna, including: a radiator; a signal feed component, which is used to transmit a radio frequency signal to the radiator, so as to transmit a radio frequency signal through the radiator; and a ground terminal, which is used for coupling Connect to the grounding component; the capacitive sensing component is used to sense the environmental capacitance value of a specific range through the radiator; the first DC blocking component is used to block the DC signal path from the ground terminal of the antenna to the grounding component; the second DC blocking Components, used to block the direct current signal path of the radiator to the antenna signal feeding component; and high-frequency blocking components, electrically connected between the radiator and the capacitive sensing component, used to block the radiator to the capacitive sensing High-frequency signal paths for components. The invention does not affect the radiation efficiency, can reduce design and production costs and facilitates parts management, and enables the radio frequency device to achieve the characteristics of small size, high efficiency, high environmental adaptability and low interference.

Description

technical field [0001] The invention relates to a radio frequency device and a wireless communication device, in particular to a radio frequency device and a wireless communication device which can avoid affecting the radiation efficiency of an antenna, reduce the size of the radio frequency device and increase the sensing distance. Background technique [0002] A wireless communication device transmits or receives radio waves through an antenna to transmit or exchange radio signals, and then access a wireless communication system. Radio wave is a high-frequency oscillating sine wave signal. Therefore, countries around the world have certain regulations on its energy. The main purpose is to avoid affecting users or interfering with the operation of other wireless communication devices. For example, the International Commission on Non-Ionizing Radiation Protection (International Commission on Non-Ionizing Radiation Protection) recommends that the specific absorption rate (Spe...

AI Technical Summary

Problems solved by technology

In addition, additional receivers or sensors will affect the radiation efficiency of the antenna, and require additional cost to adjust the antenna. Therefore, how to design an antenna that can meet the SAR value regulations and maintain performance has become a big challenge.

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