Radio frequency transmitting-receiving device

Abstract

The invention discloses a radio frequency transmitting-receiving device, comprising a duplexer, a radio-frequency front end, a filter, an automatic-grain adjuster, a demodulator, a buffer, an oscillator, a memory, a power amplifier, a baseband processor and a digital controller. The radio frequency transmitting-receiving device can be produced by a widely-used CMOS process, all circuits can be realized in a chip and the system has simple structure; and the whole frequency transmitting-receiving device has low power consumption so as to solve the problem of ultra-low power consumption of a sight glass in a capsule during application and is especially suitable to be applied to communication fields of wireless sensor networks, implantable medical applications and other ultra-low power consumption.

Description

technical field [0001] The invention relates to the technical field of radio frequency transceiver, in particular to a radio frequency transceiver device with extremely low power consumption. Background technique [0002] In the fields of wireless sensor networks and implantable medical wireless communication, it is usually required that the system power consumption must be extremely low, so integrating an ultra-low power consumption RF transceiver system on a CMOS process is a key technology. [0003] In recent years, some ultra-low power consumption RF transceiver systems have been implemented based on passive RFID technology. However, the data rate of these systems is usually very low (<100Kbps), and the sensitivity of the receiving system is usually not high. In order to make the receiving system effective For receiving signals, the transmitting system must transmit high enough power. However, high RF power is harmful to the human body. Therefore, based on the above s...

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Problems solved by technology

[0003] In recent years, some ultra-low power consumption RF transceiver systems have been implemented based on passive RFID technology. However, the data rate of these systems is usually very low (<100Kbps), and the sensitivity of the receiving system is usually not high. In order to make the receiving system effective For receiving signals, the transmitting system must transmit high enough power. However, high RF power is harmful to the human body. Therefore, based on the above shortcomings, the ultra-low power RF transceiver implemented by passive RFID technology is not suitable for the application. In the field of wireless sensor networks and wireless communication for implantable medical applications

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