Unlock instant, AI-driven research and patent intelligence for your innovation.

An ultra-high intercept point short-wave direct sampling receiver

A receiver and short-wave technology, applied in the radio frequency field, can solve problems such as electromagnetic interference and affecting receiver performance, and achieve the effect of ultra-high electromagnetic compatibility

Active Publication Date: 2022-04-01
成都美数科技有限公司
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the existing short-wave receiver is seriously disturbed by electromagnetic interference, thereby affecting the performance of the receiver, the present invention provides a short-wave direct acquisition receiver with an ultra-high intercept point

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
  • An ultra-high intercept point short-wave direct sampling receiver
  • An ultra-high intercept point short-wave direct sampling receiver

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] The main interference of existing short-wave receivers comes from the cut-off frequency of DC-DC, which is used for low-frequency short-wave, and the signal has a strong ability to penetrate walls. The choke inductance value must also be too large, which is very easy to form an antenna effect, so it is particularly difficult to achieve electromagnetic compatibility within the short-wave system. In order to solve this phenomenon, this embodiment proposes a short-wave direct acquisition receiver with an ultra-high intercept point. This embodiment uses an external DC-DC to deal with DC-DC interference, specifically as figure 1 As shown, the receiver of this embodiment includes an external DC-DC converter, a power regulator, a controller and a shortwave signal processor.

[0058] In this embodiment, the external DC-DC converter DC~DC input and output use shielded wires with strong anti-interference ability to replace the original high-temperature wires. The material of DC-...

Embodiment 2

[0062] This embodiment further optimizes the design of the shortwave signal processor in the above embodiment 1, specifically as figure 2 As shown, the short-wave signal processor of this embodiment includes a low-pass filter A, a pre-stage gain control module (including a single-pole multi-throw switch A, a low-noise amplifier A, a radio frequency attenuator A and a single-pole multi-throw switch B), a radio frequency preselector filter bank (including SPDM switch C, RF preselection filter bank and SPDM switch D), low-pass filter B, secondary gain control block (comprising SPDT switch A, LNA B and SPDT switch B), RF attenuator B, low-pass filter C, temperature-controlled attenuator A and output module (including power divider A, fixed-value attenuator A, low-pass filter D, fixed-value attenuator B, low-noise amplifier C and low-pass filter E).

[0063] The low-pass filter A of this embodiment is used to receive 2MHz-30MHz radio frequency signals and filter out the interfere...

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 short-wave direct acquisition receiver with an ultra-high intercept point, comprising an external DC-DC converter, a power regulator, a controller and a short-wave signal processor; the external DC-DC converter is packaged in a shielding cavity In the body; the input end of the external DC-DC converter is connected to the power supply through a shielded wire; the output end of the external DC-DC converter is connected to the input end of the power regulator through a shielded wire; the power regulator is described The controller and the short-wave signal processor supply power; the controller is used to control the devices in the short-wave signal processor; the short-wave signal processor is used to obtain 2MHz-30MHz radio frequency signals and process them to output intermediate frequency signals and intermediate frequency monitoring signals. The present invention handles DC-DC self-interference by setting an external DC-DC converter, and encapsulates and shields the DC-DC converter, has ultra-high electromagnetic compatibility, and its own interference is lower than -120dBm.

Description

technical field [0001] The invention belongs to the technical field of radio frequency, and in particular relates to a short-wave direct sampling receiver with a super high intercept point. Background technique [0002] With the rapid development of modern communications, the demand for the use of microwave frequencies has further increased, and the signals in the space we live in are becoming more and more complex. Compared with high-frequency signals, short-wave signals have a higher usage rate and are more susceptible to power Interference, so there is an urgent need for a high-precision and low-distortion shortwave receiving system to filter and amplify the shortwave signal more accurately, so as to demodulate it with the digital processing module. [0003] Defects and deficiencies of the prior art: [0004] 1. Existing 2M-30M shortwave receivers are often simple in structure, with serious low-frequency electromagnetic interference, and the interference caused by the pr...

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): H04B1/10
CPCH04B1/10
Inventor 杜江潘江
Owner 成都美数科技有限公司
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com