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

A U-shaped monopole antenna placed back-to-back

A monopole antenna, back-to-back technology, applied in the field of communication, can solve the problems of not being suitable for broadband wireless communication systems, narrow antenna bandwidth, etc., and achieve the effects of easy processing, stable radiation pattern, and simple overall structure

Pending Publication Date: 2019-01-25
HEFEI CAREER TECHNICAL COLLEGE
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the bandwidth of these antennas is too narrow to be suitable for broadband wireless communication systems

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 U-shaped monopole antenna placed back-to-back
  • A U-shaped monopole antenna placed back-to-back
  • A U-shaped monopole antenna placed back-to-back

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments.

[0027] A U-shaped monopole antenna placed back-to-back in an embodiment of the present invention is a U-shaped monopole antenna with a low-profile broadband back-to-back. The two U-shaped patches introduced are symmetrically printed on the upper and lower sides of the substrate. The antenna is fed by a grounded coplanar waveguide, and the feeding port and the antenna structure are integrated, so the complexity of the antenna is not increased. The antenna of the present invention has been successfully processed into a real object and the...

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

PropertyMeasurementUnit
Thicknessaaaaaaaaaa
Radiusaaaaaaaaaa
Login to View More

Abstract

A back-to-back U-shaped monopole antenna solves the technical problem that the bandwidth of a conventional antenna is too narrow to be suitable for a broadband wireless communication system. Includestwo U-shaped patches and feeder wires, the two U-shaped patches are symmetrically printed on both sides of a single substrate, and the U-shaped patches are connected with the feeder wires, and the U-shaped patches are symmetrically printed on both sides of a single substrate. The feeding line is an antenna fed by a grounded coplanar waveguide with a characteristic impedance of 50 omega; The singlesubstrate is arranged in a substrate integrated waveguide cavity. The invention is fed by a grounded coplanar waveguide, and a 50-ohm coaxial connector is directly welded at the interface of the coplanar waveguide to realize the testing work of the antenna. A t result of that invention shows that the antenna has an operating bandwidth of 95.8% and a maximum gain of 3.75 dBi can be achieved at 2.8GHz. The radiation pattern of the antenna is very stable and the cross polarization is very small in the whole bandwidth. The invention makes it very suitable for indoor wireless network connection.

Description

Technical field [0001] The present invention relates to the field of communication technology, in particular to a U-shaped monopole antenna placed back to back. Background technique [0002] With the rapid development of current wireless communications, designing broadband monopole antennas with vertical polarization has attracted a lot of attention, both in academia and in industry. Antennas with omnidirectional radiation patterns in the entire horizontal plane and tapered beams in the vertical plane have been widely used in indoor wireless communications, such as wireless local area networks or wireless network connections. However, almost all wireless devices require compactness and miniaturization of antennas. The height of the traditional vertical monopole antenna is about 0.25λ0 (λ0 refers to the center frequency of the 10dB input impedance bandwidth), which will hinder the use of some low-profile devices. Recently, some techniques to reduce the profile height of antennas...

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): H01Q1/36H01Q1/50H01Q9/30
CPCH01Q1/36H01Q1/50H01Q9/30
Inventor 高敏郑亚强王克勇李隽钰戴若萌胡经纬
Owner HEFEI CAREER TECHNICAL COLLEGE