Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Multi-frequency band electronic device and multi-frequency band signal processing method

An electronic device, multi-band technology, applied in the direction of electrical components, automatic power control, etc., can solve problems such as increasing system complexity and cost

Active Publication Date: 2009-05-13
RICHWAVE TECH CORP
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, it is bound to increase the complexity and cost of the system

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
  • Multi-frequency band electronic device and multi-frequency band signal processing method
  • Multi-frequency band electronic device and multi-frequency band signal processing method
  • Multi-frequency band electronic device and multi-frequency band signal processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] FIG. 3 is a multi-band electronic device 300 according to an embodiment of the invention. The multi-band electronic device 300 supports transceivers operating in multiple different frequency bands (for simplicity, two frequency bands are taken as an example; eg, 2.4-2.5 GHz, 5.0-6.0 GHz). The multi-band electronic device 300 includes first, second and third circuit parts 310, 320, 330, a power supply 340, low noise amplifiers 351, 352, power amplifiers 361, 362, switches 353, 354, 363, 364, mixing Frequency converters 355, 365, a demodulator 356, a modulator 366, and a baseband processor 370. The first circuit part 310 includes a first voltage controlled oscillator 312 , first, third and fifth switches 314 , 316 , 318 . The second circuit part 320 includes a second voltage-controlled oscillator 322 , a second frequency divider 323 , second, fourth, and sixth switches 324 , 326 , and 328 . The third circuit part 330 includes a first frequency divider 332 , a phase dete...

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 provides a multiband electronic device and a multiband signal processing method. The multiband electronic device comprises a first circuit part, a second circuit part and a third circuit part. According to a switching signal, the first circuit and the third circuit selectively form a first phase-locked loop frequency synthesizer, and at the same time the second circuit and the third circuit do not form a phase-locked loop, and the output range of the first phase-locked loop frequency synthesizer is in a first frequency band; or according to the switching signal, the second circuit and the third circuit selectively form a second phase-locked loop frequency synthesizer, and at the same time the first phase-locked loop frequency synthesizer forms a broken circuit, and the output range of the second phase-locked loop frequency synthesizer is in a second frequency band; and the first frequency band and the second frequency band are not completely overlapped.

Description

technical field [0001] The present invention relates to a phase-locked loop frequency synthesizer, in particular to a multi-band phase-locked loop frequency synthesizer capable of synthesizing desired frequencies in multiple frequency bands. Background technique [0002] A phase locked loop is an electronic control system that generates a signal that locks the phase of a reference signal. figure 1 is a block diagram of a known PLL 100 . The phase locked loop 100 includes a phase detector 110 , a loop filter 120 , and a voltage controlled oscillator 130 . The phase detector 110 is generally a mixer, which compares the difference in frequency and phase between the reference signal Sref and the output signal Svco of the voltage-controlled oscillator 130 , and outputs a difference signal to the loop filter 120 . The loop filter 120 drives the voltage-controlled oscillator 130 according to the difference signal, so as to maintain the phase difference between the output signal S...

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): H03L7/18H03L7/08
Inventor 王一峰邓维康
Owner RICHWAVE TECH CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com