A Simultaneous Dual-Frequency Receiving System

A time-dual, single-frequency technology, applied in transmission systems, electrical components, etc., can solve the problems of high cost, many mixers, and large receiving devices, and achieve the effect of using fewer components and reducing cost and volume.

Active Publication Date: 2018-06-19
BEIJING UNIV OF POSTS & TELECOMM
View PDF13 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned hybrid simultaneous dual-frequency receiving system requires more mixers, and the cost is relatively high, and the volume of the receiving device is relatively large.

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
  • A Simultaneous Dual-Frequency Receiving System
  • A Simultaneous Dual-Frequency Receiving System
  • A Simultaneous Dual-Frequency Receiving System

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0044] refer to figure 1, a simultaneous dual-frequency receiving system provided by an embodiment of the present invention includes a dual-frequency radio frequency signal generating device 101, a first mixer 102, a second mixer 103, a first phase shifter 104, a second phase shifter device 105, a first filtering device 106, a second filtering device 107, a four-port circulator 108 and a dual-frequency local oscillator signal generating device 109;

[0045] Wherei...

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 embodiment of the invention discloses a synchronous dual-frequency receiving system. The system comprises: a dual-frequency radio frequency signal generating device, a first mixer, a second mixer, a first phase shifter, a second phase shifter, a first filtering device, a second filtering device, a four-port circulator and a dual-frequency local oscillation signal generating device, wherein the first mixer and the second mixer are used for mixing a radio frequency signal with a local oscillation signal; the first phase shifter and the second phase shifter are used for changing a phase of an input signal by an angle; the first filtering device and the second filtering device are used for filtering the input signal to obtain a signal with a required frequency; the four-port circulator is used for adding and subtracting two input signals to perform signal separation; the dual-frequency radio frequency signal generating device is used for generating a dual-frequency radio frequency signal; and the dual-frequency local oscillation signal generating device is used for generating a dual-frequency local oscillation signal. By applying the embodiment of the invention, the cost and the size of the synchronous dual-frequency receiving system can be reduced.

Description

technical field [0001] The invention relates to the field of dual-frequency reception, in particular to a simultaneous dual-frequency reception system. Background technique [0002] With the rapid development of the information society, wireless mobile communication has penetrated into all aspects of economic development and social life, promoting the development and progress of society. At the same time, the increasingly tight wireless spectrum resources, complex external electromagnetic environment, and new requirements to support more services and faster transmission speeds are also facing more difficult challenges for wireless communications. In order to meet the growing needs of people, WLAN (Wireless Local Area Networks, wireless local area network) has proposed a variety of standards, which require the support of multiple frequency bands at the same time; the standard of mobile communication terminals has developed from 3G to 4G or even 5G, the The communication freq...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/00H04B1/30
CPCH04B1/005H04B1/0082H04B1/30H04B2001/307
Inventor 于翠屏刘微刘元安吴永乐苏明黎淑兰王卫民高锦春
Owner BEIJING UNIV OF POSTS & TELECOMM
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