Double-fed dual-frequency dual-circular-polarization microstrip patch antenna

A technology of microstrip patch antenna and microstrip antenna, which is applied to antennas, antenna arrays, antenna grounding devices, etc., can solve the problems of increased design and processing, difficulty, and complex structure, and achieve low processing cost, low cost, and volume small effect

Inactive Publication Date: 2019-02-01
10TH RES INST OF CETC
View PDF5 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods have broadened the bandwidth of the microstrip antenna to a certain extent, but the structure is relatively complicated, which adds certain difficulties to the design and processing.

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
  • Double-fed dual-frequency dual-circular-polarization microstrip patch antenna
  • Double-fed dual-frequency dual-circular-polarization microstrip patch antenna
  • Double-fed dual-frequency dual-circular-polarization microstrip patch antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] refer to figure 1 , figure 2 , image 3 , Figure 4 . In the embodiment described below, a dual-feed dual-frequency dual-circularly polarized microstrip patch antenna includes; a two-layer microstrip antenna patch based on a stacked microstrip patch structure, and a nylon screw 4 passes through the upper layer patch The SMD dielectric board and the lower SMD dielectric board are connected to the metal ground plate 3 for fixing, and two feeding probes are used to feed the upper and lower antennas respectively. Five nylon screws 4 pass through the center of the upper and lower dielectric boards and connect with the four corners of the metal grounding board 3, and combine the two types of microstrip antenna patches concentrically to reduce the influence of the air layer between the dielectric boards and improve the strength of the antenna structure. The microstrip antenna patch with higher operating frequency is placed on the upper layer, and the microstrip antenna p...

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-fed dual-frequency dual-circular-polarization microstrip patch antenna and aims at providing a circularly polarized microstrip patch antenna with the random frequencyratio and antenna polarization mode. The antenna is characterized in that an upper patch feed point is arranged at a patch axis and a lower patch feed point is arranged at a lower square patch diagonal line to form a double-feed mode with two feed points in independent feeding. A perturbation element is formed at the corner cut of the diagonal line of an upper square microstrip patch and two degeneracy dies that are arranged orthogonally in a phase difference of 90 degrees are excited, so that currents at the patch flow circularly along center areas of the tops of four groups of groove lines of the patch to realize high-frequency-point circular polarization. Unequal-length T branches are loaded at the opposite angles around a lower microstrip antenna patch covered by the upper microstrip antenna patch and two degeneracy dies that are arranged orthogonally in a phase difference of 90 degrees are excited, so that the currents on the patch flow circularly along the T-shaped branches at the edge of the patch to realize low-frequency-point circular polarization. The upper antenna and the lower antenna are laminated concentrically to form a dual-frequency dual-circle polarization workingstate.

Description

technical field [0001] The invention relates to a dual-frequency microstrip patch antenna, which is especially suitable for a double-fed, dual-frequency, dual-circularly polarized microstrip patch antenna with any frequency ratio and any polarization. Background technique [0002] With the development of the integrated circuit industry, the volume of the mobile terminal is required to be further reduced. As one of the most important components in a wireless communication system, the size of the antenna becomes one of the bottlenecks restricting the miniaturization of the mobile communication system. Traditional antennas have been unable to meet the development needs of miniaturization of electronic devices in terms of form and function. On the other hand, due to the coexistence of various wireless communication technologies, the wireless communication system needs to be compatible with different communication modes. In this way, the system needs multiple antennas to coopera...

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): H01Q1/12H01Q1/38H01Q1/48H01Q1/50H01Q15/24H01Q21/00H01Q21/30
CPCH01Q1/12H01Q1/38H01Q1/48H01Q1/50H01Q15/24H01Q21/0006H01Q21/30
Inventor 高鹏程
Owner 10TH RES INST OF CETC
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