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Millimeter wave sensor and intelligent detector

A millimeter wave and sensor technology, applied in the field of millimeter wave sensors and intelligent detectors, can solve the problems of inability to mass-produce, unrealized chip technology, and poor anti-interference ability, achieving simple structure, low cost, and strong anti-interference ability. Effect

Pending Publication Date: 2018-03-20
CHENGDU PHASE LOCK ELECTRONICS TECH
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Problems solved by technology

Due to the limitation of domestic chip technology, millimeter-wave sensors are mostly composed of discrete devices, resulting in fatal flaws in size and cost, and the immaturity of the process also prevents mass production
At present, domestic 24 / 77GHz millimeter-wave transceiver integrated chips have achieved technological breakthroughs, while chip technologies exceeding 77GHz have not yet been realized
The wavelength of the 24 / 77GHz millimeter wave is greater than 2mm, so the antenna of the sensor is relatively large, and the 24 / 77GHz millimeter wave sensor has the disadvantages of poor anti-interference ability, high cost and large size

Method used

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Embodiment Construction

[0033] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0034] Traditional sensors such as laser sensors are mostly selected as semi-active. The main reason is that the active emission source and receiver are all in the sensor, the volume and power consumption of the sensor will be large, and the cost is relatively high; There is only the receiving system, which greatly reduces the size, power consumption and cost of the fuze, so it is very popular. However, semi-active sensors also have their unavoidable defects, that is, they need to artificially place a field source around the target in advance, and the field source placed in advance is easy to leak and be subject to targeted interference. This makes its sensor have great limitations.

[0035] In the past decade or s...

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Abstract

The invention relates to a millimeter wave sensor and an intelligent detector. The millimeter wave sensor comprises a signal generator, a transmitting and receiving integrated chip, a bandpass filter,an amplifier, an A / D converter and a digital signal processor which are sequentially connected. Compared with the existing 24 / 77GHz millimeter wave sensor, the millimeter wave sensor provided by theinvention is higher in signal frequency and has the advantages of high beam directivity, high anti-interference ability, small size and light weight. In addition, compared with a sensor formed by discrete devices, the millimeter wave sensor adopting the transmitting and receiving integrated chip based on a SiGe process has the advantages of simple structure, small size, portability, convenient mass production and low cost, greatly improves the adaptability of the sensor and provides powerful technical support for the increasingly complex information-based detection environment in the future.

Description

technical field [0001] The invention relates to the field of radar detection and safety, in particular to a millimeter-wave sensor and an intelligent detector with small volume, high integration, low cost and high precision. Background technique [0002] Proximity sensors are mainly divided into optical sensors, ultrasonic sensors, and radio sensors. Radio sensors include microwave sensors and millimeter wave sensors. The existing millimeter-wave sensors are mainly 24 / 77GHz millimeter-wave sensors. The millimeter-wave transceiver integrated chip is a key component of the millimeter-wave sensor, and the chip technology is mainly controlled by foreign semiconductor companies. Due to the limitation of domestic chip technology, millimeter wave sensors are mostly composed of discrete devices, resulting in fatal defects in size and cost, and the immaturity of the process also prevents mass production. At present, domestic 24 / 77GHz millimeter-wave transceiver integrated chips hav...

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Application Information

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IPC IPC(8): G01V3/12G01S7/40
CPCG01S7/40G01V3/12
Inventor 王勇张华彬沈照国文超郭冬冬王国强
Owner CHENGDU PHASE LOCK ELECTRONICS TECH
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