Wireless direct-current-free sensing information transmission circuit

A technology for sensing information and transmitting circuits, which is applied in the field of electronics, can solve problems such as wireless transmission, complex structure, and inconvenient use, and achieve the effects of light weight long-distance wireless transmission, simple circuit structure, and convenient use

Pending Publication Date: 2019-08-27
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the conditioning transmission circuit of this sensing information has a complex structure, cannot be wirelessly transmitted, and is inconvenient to use

Method used

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  • Wireless direct-current-free sensing information transmission circuit
  • Wireless direct-current-free sensing information transmission circuit
  • Wireless direct-current-free sensing information transmission circuit

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Embodiment Construction

[0015] In order to facilitate those skilled in the art to understand the technical content of the present invention, the content of the present invention will be further explained below in conjunction with the accompanying drawings.

[0016] Such as figure 2 As shown, it is a schematic structural diagram of a wireless non-DC sensing information transmission circuit provided by the present invention; it includes a transceiver antenna, a drain matching circuit, an open line, a sensor, a transistor containing a heterojunction, and a resonant network, and the drain One end of the matching circuit is connected to the transceiver antenna, the other end is connected to the drain of the transistor containing the heterojunction, and the source of the transistor containing the heterojunction is connected to the open line, so that the modulated microwave signal generated by the polariton transition is reflected Returning to the drain matching circuit and transmitting through the transce...

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Abstract

The invention discloses a wireless direct-current-free sensing information transmission circuit, and belongs to the technical field of electronics. The transmission circuit comprises a receiving and transmitting antenna, a drain electrode matching circuit, an open circuit line, a sensor, a transistor containing a heterojunction and a resonant network. One end of the drain electrode matching circuit is connected with the receiving and transmitting antenna, the other end of the drain electrode matching circuit is connected with the drain electrode of the transistor containing the heterojunction,the source electrode of the transistor containing the heterojunction is connected with the open circuit line, the grid electrode of the transistor containing the heterojunction is grounded through the resonant network, and the output end of the sensor is connected between the drain electrode matching circuit and the transistor containing the heterojunction; and the drain electrode matching circuit receives the pumping microwave through the receiving and transmitting antenna and transmits a microwave signal modulated by the sensing information to the receiving and transmitting antenna. The circuit structure is simple, the remote wireless transmission of information can be realized under the conditions of small size and light weight, the use is convenient, and the use range is wide.

Description

technical field [0001] The invention belongs to the technical field of electronics, in particular to a wireless non-DC sensing information transmission circuit. Background technique [0002] Sensor information is usually output in the form of voltage or current signals, and the signals are generally weak, which puts forward higher requirements for wireless transmission of sensor information. In the sensor system network, the signal output by the sensor needs to be processed by the signal conditioning circuit, and then the conditioned signal is analyzed and processed by the information collection center to realize the sensor network. The typical processing of conditioning circuits includes circuit isolation, impedance transformation, level conversion, amplification, filtering, linearization, and various calculations. Especially in sensor information wireless transmission systems, conditioning circuits usually require various radio frequency circuits. Components such as oscil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/40
CPCH04B1/40
Inventor 曾成王入意补世荣陈柳王占平宁俊松
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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