Wake-up receiver with low power consumption and high sensitivity
A high-sensitivity, receiver technology, applied to electrical components, transmission systems, etc., can solve problems such as low sensitivity, high power consumption, and short communication range, and achieve the effect of high sensitivity and low power consumption
Active Publication Date: 2021-07-23
陕西亿星远能科技有限公司
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Problems solved by technology
[0004] Passive wake-up receivers have a short communication range due to energy limitations, even with very high transmit power or high-gain antennas, its communication range is only a few meters
Passive wake-up receivers can often meet the requirements of low power consumption, but often have low sensitivity and cannot effectively detect wake-up signals, while most active wake-up receivers have improved accuracy, but the power consumption will exceed the μW level
The above wake-up receivers all have the problems of high power consumption and low sensitivity
Method used
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Embodiment 1
[0047] Please refer to figure 1 and figure 2 , figure 1 It is a structural block diagram of a wake-up receiver with low power consumption and high sensitivity provided by an embodiment of the present invention; figure 2It is a structural schematic diagram of a wake-up receiver with low power consumption and high sensitivity provided by the embodiment of the present invention. As shown in the figure, the wake-up receiver with low power consumption and high sensitivity of this embodiment includes: a signal receiving module 100, which receives an OOK-modulated radio frequency signal through an antenna; a reflection amplifier 200, which is used to perform reflection amplification processing on a radio frequency signal; The rectifier module 300 is used to extract the envelope of the RF signal after reflection and amplification processing to obtain a demodulated baseband signal; the data slicer module 400 is used to amplify the baseband signal to at least 1.5V to obtain a wake-u...
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The invention relates to a wake-up receiver with low power consumption and high sensitivity, and the receiver comprises: a signal receiving module which receives a radio frequency signal modulated by OOK through an antenna; a reflection amplifier which is used for carrying out reflection amplification processing on the radio frequency signal; a passive rectifier module which is used for performing envelope extraction on the radio frequency signal after reflection amplification processing to obtain a demodulated baseband signal; and a data slicer module which is used for amplifying the baseband signal to be at least 1.5 V to obtain a wake-up signal, wherein the reflection amplifier is a reflection amplifier based on a tunnel diode. A reflection amplifier based on a tunnel diode is adopted to amplify a received radio frequency signal, and the reflection amplifier can amplify an incident signal with extremely high gain by utilizing the negative resistance characteristic of the low-power tunnel diode, so that a wake-up signal of at least 1.5 V can be obtained under the condition that the power of a transmitted signal is relatively low, and the wake-up receiver has high sensitivity.
Description
technical field [0001] The invention belongs to the technical field of wake-up receivers, in particular to a wake-up receiver with low power consumption and high sensitivity. Background technique [0002] With the rapid development of Internet of Things technology, wireless sensor network technology has received more and more attention from academia and industry. A network composed of a large number of sensors that can communicate with each other and sense the environment can realize fire prevention and control, intelligent storage and other functions. However, since the sensor node energy is not easy to supply, how to prolong the service life and reduce the cost has become a hot issue in recent years. In order to increase the service life of nodes in wireless sensor network (WSN), the concept of wake-up receiver is proposed. The wake-up receiver is an extremely low-power receiver with power consumption in the μW range, and it is mainly used for receiving wake-up signals. ...
Claims
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IPC IPC(8): H04B1/16
CPCH04B1/16Y02D30/70
Inventor 马涛吴冰茹张典典
Owner 陕西亿星远能科技有限公司