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

Small ultra wideband band-notched antenna with controllable second-order notched bandwidth

A notch antenna and ultra-wideband technology, applied in the field of planar miniaturized ultra-wideband notch antenna, can solve the problems of large size of ultra-wideband antenna, uncontrollable notch bandwidth, poor selectivity, etc. Improved, selective effect

Active Publication Date: 2013-03-13
广州桑瑞科技有限公司
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems of large size, uncontrollable notch bandwidth and poor selectivity of the existing ultra-wideband antenna, the present invention provides a small ultra-wideband notch antenna with controllable second-order notch bandwidth, which is realized by using a second-order resonator A single notch greatly improves the selectivity of the notch and the controllability of the second-order bandwidth; in the communication environment, it can provide good anti-interference effect

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
  • Small ultra wideband band-notched antenna with controllable second-order notched bandwidth
  • Small ultra wideband band-notched antenna with controllable second-order notched bandwidth
  • Small ultra wideband band-notched antenna with controllable second-order notched bandwidth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0023] figure 1 It is the geometric structure of the small ultra-wideband antenna proposed by the present invention, which is printed on a dielectric board with a size of 22×8.5×0.8 mm, that is, on the FR4 substrate 12. The front side of the dielectric plate is a bent step width gap 14; the back side of the dielectric plate is a 50-ohm microstrip feeder line 13. The electromagnetic wave on the microstrip feeder 13 is coupled to the step width gap 14 and radiated. The step width slits 14 can form multiple matching points in the frequency range of the ultra-wideband. These matching points can be controlled by adjusting the size of the step width slits to make them uniformly distributed in the frequency range of the ultra-wideband. The relative position between the microstrip feed line 13 and the step width slot 14 also has an important influence on the impedance matching characteristics of the entire antenna. By adjusting these parameters with software, this antenna can achieve ...

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 small ultra wideband band-notched antenna with controllable second-order notched bandwidth. The antenna is printed on a dielectric slab, and comprises a step change width gap formed in the front surface of the dielectric slab, a microstrip feeder arranged on the back of the dielectric slab, a terminal-open quarter-wavelength gap formed in the back of the microstrip feeder, and a terminal-short half-wavelength gap formed beside the step width gap. The electromagnetic wave on the microstrip feeder is coupled onto the step width gap and radiated out; the quarter-wavelength gap is perpendicular to the microstrip feeder; and the quarter-wavelength gap and the half-wavelength gap form two resonators coupled with each other in the notched frequency band. due to the antenna provided by the invention, the technical problems of large size, uncontrollable notched bandwidth and poor selectivity of the existing ultra wideband antenna are solved, the selectivity of notched waves and the controllability of second-order bandwidth are improved greatly, and the anti-interference effect is good.

Description

Technical field [0001] The invention relates to a plane miniaturized ultra-wideband trap antenna, in particular to an ultra-wideband trap antenna with good trap selectivity and controllable bandwidth. Background technique [0002] In recent years, ultra-wideband (Ultra-Wideband) communication systems have attracted more and more attention. Compared with traditional wireless communication systems, ultra-wideband communication without carrier pulse technology has its own unique advantages: high-speed data transmission rate, low power loss, short distance, etc. It is believed that ultra-wideband communication is very likely to become a short-range communication method in the future. As the front-end equipment and important part of ultra-wideband communication, the research of ultra-wideband antennas has become a research focus in recent years. Research on ultra-wideband antennas includes small size, simple structure, good impedance matching, stable radiation characteristics and hi...

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): H01Q1/38H01Q13/08
Inventor 褚庆昕毛春旭
Owner 广州桑瑞科技有限公司
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