77GHz power monitoring circuit based on detector

A technology of power monitoring and detector, applied in the direction of measuring electrical variables, measuring electrical power, instruments, etc., can solve the problem of difficulty in ensuring the real-time performance of power monitoring, and achieve the effect of avoiding deterioration of the front-end performance of the transceiver, simplifying the circuit structure, and improving reliability.

Pending Publication Date: 2021-06-01
NANJING INST OF TECH
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem is that the real-time performance of power monitoring is difficult to guarantee, that is, how to obtain the detection voltage in real time through the detector circuit while the front-end of the transceiver is working normally
At present, there is no public report of relevant research, which effectively combines the detection and protection of the detector circuit with the front-end monitoring and protection of the transceiver

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 77GHz power monitoring circuit based on detector
  • 77GHz power monitoring circuit based on detector
  • 77GHz power monitoring circuit based on detector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0038] In the description of the patent of the present invention, it should be noted that the terms "comprising", "comprising" or any other variant thereof are intended to cover a non-exclusive inclusion, except for those elements listed, and may also include elements not explicitly listed. other elements out.

[0039] In the description of the patent of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the patent of ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a 77GHz power monitoring circuit based on a detector. The 77GHz power monitoring circuit comprises a W-band standard waveguide, a waveguide microstrip fin line transition structure, a 50-ohm microstrip line, a parallel coupler, an MMIC attenuator chip, a 50-ohm thin-film resistor, a detector circuit and an operational amplifier circuit. The P1 port and the P2 port of the parallel coupler can be respectively used as input and output or output and input, so that a signal transmission channel during normal work is provided; and the other small part of signals are simultaneously transmitted to a P3 port of the parallel coupler and are sent to a detector circuit to realize power monitoring. The circuit can be cascaded at the input end of a receiver to form a receiver real-time protection circuit and can also be cascaded at the output end of a transmitter to form a transmitter power real-time monitoring circuit, normal work of a transceiving front end is not affected, and performance deterioration of the receiver and the transmitter is avoided.

Description

technical field [0001] The invention specifically relates to a detector-based 77GHz power monitoring circuit, which belongs to the technical field of W-band broadband detectors. Background technique [0002] The 77GHz frequency band is located in the low-end frequency of the W-band (75-110GHz). Its advantages of short wavelength, less interference, and small circuit size make this frequency band a popular spectrum resource for applications such as foreign object detection and automotive anti-collision radar. In the radar application system, the receiver and the transmitter are two important components of the radar transceiver front end. One of the important bases for judging the practicability of the transceiver front-end project is whether it can realize the real-time self-protection of the receiver in the environment of large signal and strong interference, and whether it can realize the real-time monitoring of the transmission output power in the working state to determin...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01R21/00
CPCG01R21/00
Inventor 蒋姝刘扬杨会军冯琤宋宇飞刘婷婷许恒飞
Owner NANJING INST OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap