Asymmetrical high speed and low power consumption transceiver

A transceiver device, low-power technology, applied in the field of wireless radio frequency transceivers, can solve the problem that the receiver is not suitable for applications with extremely low power consumption, the data rate is limited by the bandwidth of the phase-locked loop loop, and the high-speed and low-power consumption cannot be satisfied. and other problems to achieve the effect of solving the problem of ultra-low power consumption, low power consumption and increased power consumption

Active Publication Date: 2011-02-09
INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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Problems solved by technology

Therefore, receivers based on frequency conversion structures are not suitable for extremely low power consumption applications
For the transmitter, the traditional modulation structure based on up-conversion can achieve high data rate, but generally requires a large power consumption; based on the phase-locked loop modulation structure, power consumption can be reduced, but the data rate is low, because the data rate Limited by the loop bandwidth of the PLL
Therefore, the traditional transmitter structure cannot meet the requirements of high speed and low power consumption

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  • Asymmetrical high speed and low power consumption transceiver
  • Asymmetrical high speed and low power consumption transceiver
  • Asymmetrical high speed and low power consumption transceiver

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[0041] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0042] Such as figure 1 as shown, figure 1 The system block diagram of the asymmetric high-speed low-power consumption transceiver provided by the present invention, the radio frequency transceiver includes: a duplexer 10, an envelope detector 11, a demodulator 12, a digital processor 13, a power amplifier 14, a phase-locked Ring frequency synthesizer 15 and memory 16.

[0043] The duplexer 10 is used for selection and isolation of reception and transmission; the envelope detector 11 is used for directly converting the input radio frequency signal into a DC signal, that is, detecting the envelope information of the radio frequency signal; the demodulator 12 is used for The DC voltage signal output by the envelope detect...

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Abstract

The invention discloses an asymmetrical high speed and low power consumption transceiver, which comprises a duplexer (10), an envelope detector (11), a demodulator (12), a digital processor (13), a power amplifier (14), a phase-locked loop frequency synthesizer (15) and a storage (16). On the premise of meeting the requirement of certain sensitivity, the extremely low power consumption wireless receiving function is realized; meanwhile, a transmitter can realize high speed and low power consumption modulation transmission, so that the transceiver can be applied to occasions with ultralow power consumption such as medical wireless implant, medical wireless imaging, wireless sensor networks and the like.

Description

technical field [0001] The invention relates to the technical field of wireless radio frequency transceivers, in particular to an asymmetric high-speed low-power transceiver device with low requirements on receiving performance, high transmission data rate and extremely low power consumption. Background technique [0002] Wireless transceivers undoubtedly play an extremely important role in applications such as medical wireless implants, medical wireless imaging, and wireless sensor networks. The key to the design of such wireless transceivers is that the power consumption must be very low to extend the battery life. In addition, this type of wireless transceiver also has some other special design requirements. For example, this type of system generally only receives simple instructions, and the performance requirements for the receiver are not very high; for the transmitter, the data rate is required to be very high, so that Send the physiological information or environmen...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03L7/18H04B1/40H04W52/02
Inventor 章琦颜小舟冯鹏耿志清吴南健
Owner INST OF SEMICONDUCTORS - CHINESE ACAD OF SCI
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