Millimeter-wave monolithic quadrature down converter

A millimeter wave and frequency converter technology, applied in the electronic field, can solve the problems of large frequency conversion loss and increase chip area, and achieve the effect of reducing frequency conversion loss and increasing chip area

Inactive Publication Date: 2009-08-19
UNIV OF ELECTRONIC SCI & TECH OF CHINA
View PDF1 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a millimeter-wave single-chip quadrature down-converter based on PHMET technology to overcome the shortcomings of large frequency conversion losses in traditional quadrature down-converters without increasing the chip area

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
  • Millimeter-wave monolithic quadrature down converter
  • Millimeter-wave monolithic quadrature down converter
  • Millimeter-wave monolithic quadrature down converter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] A monolithic quadrature downconverter, such as figure 2 As shown, it includes an equal-amplitude in-phase power divider circuit 1 using a T-connector network with matching input and output port impedances, and a Macard balun with capacitive loading technology (see the publication of the invention patent application: "a kind of image frequency suppression mixing frequency converter", application number: 200510022225.8, publication number: CN 1808893A) and an even-order harmonic mixing unit composed of two mixing tubes 2. An intermediate frequency filter circuit realized by a section of λ / 2 open line 3. Using Lange electric The equal-amplitude 0° / 90° power dividing circuit 4 and the low-noise amplifier unit 5 of the bridge; the RF signal is divided into two 0° / 90° signals through the Lange bridge and added to two even-order harmonic mixing units respectively, and The LO signal is distributed to two even-order harmonic frequency mixing units through the T-connector networ...

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 millimeter wave monolithic quadrature down converter, pertaining to the field of electronic technology and relating to a millimeter wave monolithic quadrature down converter. Based on PHMET technology, the invention introduces a low-noise amplifying unit through a radio-frequency signal RF input port in the existing millimeter wave monolithic quadrature down converter, thus greatly reducing the frequency conversion loss of the whole monolithic quadrature down converter, without increasing the chip area. Simultaneously, wideband circuits such as Lange Coupler, Marchand Balun and the like are adopted to realize the power division of signals, thereby realizing the wideband feature of the whole quadrature down converter. The down converter can be applied to radar systems, communication systems and other systems.

Description

technical field [0001] The invention belongs to the field of electronic technology, relates to a millimeter-wave single-chip orthogonal downconverter, and can be directly applied to systems such as radar and communication. Background technique [0002] With the rapid development of microwave communication technology, people have higher and higher requirements for communication equipment. The advantages of small size, light weight, high reliability, and good stability make microwave monolithic integrated circuits (MMICs) gradually replace waveguide systems and hybrid integrated circuits in the field of microwave communications. Microwave monolithic integrated circuit is an integrated circuit formed by manufacturing active devices, passive devices, microwave transmission lines, interconnection lines, etc. on a gallium arsenide or silicon chip by semiconductor technology. [0003] The downconverter is an essential component in the superheterodyne microwave integrated circuit r...

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): H03D7/16
Inventor 杨自强杨涛
Owner UNIV OF ELECTRONIC SCI & TECH OF CHINA
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