Radio Frequency Devices and Wireless Communication Devices

Abstract

A radio frequency device and a wireless communication device. The radio frequency device is used in a wireless communication device. The radio frequency device includes an antenna, the antenna includes a radiator and a signal input component; a capacitive sensing component; a connection component, and the connection component includes a first end, a second end and a third end that conduct each other. end, the first end is electrically connected to the radiator; the DC blocking component, the DC blocking component is electrically connected between the second end of the connection component and the signal feeding component; and the induction auxiliary component, the induction auxiliary component is electrically connected Connected between the third end of the connecting component and the capacitive sensing component, the sensing auxiliary component includes a high-frequency blocking component; and at least one capacitor, the at least one capacitor is connected in series with the high-frequency blocking component and electrically connected to the first connecting component. Between the three terminals and the capacitive sensing component. The invention utilizes the radiation body of the antenna to sense the environmental capacitance value in a specific range, which can avoid affecting the radiation efficiency of the antenna and further reduce design and production costs.

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 that can avoid affecting the radiation efficiency of an antenna, reduce design and production costs, and achieve a modular design. Background technique [0002] The 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, so 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 (SAR) value of the human body s...

AI Technical Summary

Problems solved by technology

Additional receivers or sensors will affect the efficiency of the antenna, causing the operating frequency band to be narrowed. In other words, the antenna that is originally suitable for broadband requirements will cause the operating frequency band to be narrowed due to the additional receiver or sensor.

In this case, for different communication systems with similar frequency band requirements, it is necessary to design suitable antennas separately. In addition to increasing design and production costs, it is also unfavorable for parts management

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