Broadband miniaturization double-rotating circularly polarized antenna

A circularly polarized antenna and wide-band technology, which is applied in antennas, slot antennas, resonant antennas, etc., can solve the problems of large antenna size and achieve the effects of small structure size, improved aperture utilization, and easy adjustment

Inactive Publication Date: 2013-01-23
SPACE STAR TECH CO LTD
View PDF7 Cites 39 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of antenna does not belong to the microstrip antenna, and the antenna is relatively large in size. Generally speaking, the diameter of the cavity is three-quarters of the wavelength, and the depth of the cavity is one-quarter of the wavelength. In this way, if the antenna used in the GPS navigation frequency band has a diameter of About 170mm

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
  • Broadband miniaturization double-rotating circularly polarized antenna
  • Broadband miniaturization double-rotating circularly polarized antenna
  • Broadband miniaturization double-rotating circularly polarized antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The technical solution of the present invention will be described in detail below with reference to the drawings.

[0021] As attached figure 1 , 2 As shown, a wide-band miniaturized dual-rotation circularly polarized antenna of the present invention includes an upper radiating patch 1, a lower radiating patch 2, a floor 3 with coupling gaps, a feed network 4, a dielectric substrate 5, and a dielectric Screw 6 and base 7. The upper radiating patch 1 adopts medium coupling feeding, and the lower radiating patch 2 adopts the floor 3 with coupling gaps for coupling feeding; between the upper radiating patch 1 and the lower radiating patch 2, and between the lower radiating patch 2 and the opening The floor 3 of the coupling gap is supported by a dielectric substrate 5.

[0022] The coupling gap on the floor 3 can be H-shaped, dumbbell-shaped or rectangular. Compared with dumbbell-shaped or rectangular slots of the same size, the H-shaped slot structure can be more coupled to ...

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 double-rotating circularly polarized antenna which can meet with the using requirements of broadband miniaturization communication equipment, comprising an upper-layer radiation paster 1, a lower-layer radiation paster 2, a floor 3 with coupling gaps, a feed network 4, a dielectric substrate 5, a medium screw 6 and a base 7, wherein the upper-layer radiation paster 1 adopts medium coupled feeding; the lower-layer radiation paster 2 adopts floor 3 coupled feeding with the coupling gaps; the dielectric substrate 5 is used for supporting the gap between the upper-layer radiation paster 1 and the lower-layer radiation paster 2 as well as the gap between the lower-layer radiation paster 2 and the floor 3; and the feed network 4 is located below the floor 3 and adopts a strip line form. Double-tuning characteristic is formed by medium coupled feeding so as to further broaden the antenna impedance bandwidth and axial ratio bandwidth; and caliber utilization is improved in a limited space. Simultaneously, the bandwidth of the antenna is effectively broadened and the structural size of the antenna is reduced through H-shaped gap medium coupled feeding.

Description

Technical field [0001] The present invention belongs to the technical field of antennas, and particularly relates to an antenna that meets the use requirements of a wideband and miniaturized communication device. Background technique [0002] Miniaturized broadband antennas are required to achieve broadband operation of the antenna within a smaller limited aperture. The miniaturized broadband antenna effectively improves the aperture efficiency of the antenna, broadens the impedance bandwidth and axial ratio bandwidth of the antenna, and has been widely used in satellite communications, navigation, and data transmission. [0003] In the field of satellite communications, with the development of antenna pan-satellite technology, antennas are required to work in a wide frequency band or even in multiple frequency bands. At the same time, within a limited aperture, the size and weight of the antenna are usually more stringent. Microstrip antennas have the advantages of low profile, 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
Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q5/01H01Q9/04H01Q13/08H01Q13/10H01Q5/10
Inventor 葛琳尹建勇李新华董涛张学勇
Owner SPACE STAR TECH CO LTD
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