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Millimeter wave transceiving switch array and control method thereof

A technology of transceiver switches and switch arrays, applied in the millimeter wave field, can solve the problems of low response speed and long scanning time of the millimeter wave human body security inspection system.

Inactive Publication Date: 2020-01-07
INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the response speed of the current common switch array chip is low, which leads to too long scanning time of the millimeter wave human body security inspection system.

Method used

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  • Millimeter wave transceiving switch array and control method thereof
  • Millimeter wave transceiving switch array and control method thereof
  • Millimeter wave transceiving switch array and control method thereof

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Embodiment Construction

[0032] The core of the present invention is to provide a millimeter wave transceiver switch array. In the prior art, when switching the signal channels between millimeter-wave transceiver switch arrays, the time it takes is usually the time for the control switch chip to switch the signal channel plus the time for the LNA power chip to stabilize. It usually takes tens of microseconds for the power chip to stabilize, and the time for the control switch chip to switch the signal channel is usually within 100ns. Compared with the time for the control switch chip to switch the signal channel, the low-noise amplifier chip has a longer stable time, which cannot meet the needs of the millimeter wave security inspection system.

[0033] However, a millimeter-wave transceiver switch array provided by the present invention includes a transmitting switch array and a receiving switch array, and the receiving switch array includes at least a first-level receiving switch chip, a second-leve...

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Abstract

The invention discloses a millimeter wave transceiving switch array which comprises a transmitting switch array and a receiving switch array. The receiving switch array at least comprises primary andsecondary receiving switch chips and low-noise amplifiers; and the low-noise amplifiers connected with corresponding input lines between the primary receiving switch chips are connected with a controlpower supply through the same control line, and at least one control line is connected with at least two low-noise amplifiers. A power chip of the low-noise amplifiers needs to be stabilized for tensof microseconds during use, a control power supply starts multiple low-noise amplifiers via the same control line in advance, power chip stabilizing time is shortened, rapid response of the millimeter wave transceiving switch array is realized, and further scanning time of a millimeter security check system is shortened. The invention also provides a control method with the same advantages.

Description

technical field [0001] The present invention relates to the technical field of millimeter waves, in particular to a millimeter wave transceiver switch array and a control method for the millimeter wave transceiver switch array. Background technique [0002] Electromagnetic waves with wavelengths from 10 mm to 1 mm and frequencies from 30 GHz to 300 GHz are called millimeter waves. Due to their penetrability to clothing, millimeter wave body security detectors are an efficient and convenient way for future body security inspections. . The millimeter wave human body security detector can conveniently and quickly detect whether the human body is carrying ceramic knives, plastic knives and other prohibited items. [0003] In the prior art, the two-dimensional scanning of the human body is usually realized by means of one-dimensional mechanical scanning and one-dimensional switching linear array electric scanning. However, the response speed of the current common switch array c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/12
CPCG01V3/12
Inventor 崔振茂周人陈仁爱安健飞喻洋成彬彬邓贤进
Owner INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS
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