Microstrip feed capacitor loading tri-polarized slot antenna

A capacitive loading, slot antenna technology, applied in slot antennas, antenna grounding devices, circuits, etc., can solve problems such as difficulty in impedance matching of slot antenna feeder transmission lines, reduced spectral efficiency and channel capacity, and poor antenna port isolation. , to achieve the effect of miniaturization, improved isolation, and reduced electrical size

Inactive Publication Date: 2016-08-10
NANJING UNIV OF POSTS & TELECOMM
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large metal ground will have a shielding effect on the radiation of the antenna, making the slot antenna unsuitable for co-located multiple-input multiple-output (MIMO) applications, especially when used as a multi-polarized antenna, a large metal ground will cause the antenna to Poor cross-polarization, poor isolation between antenna ports, which will lead to a decrease in spectral efficiency and channel capacity
At the same time, the impedance of the slot is very large, which also makes the impedance matching of the slot antenna feeding transmission line more difficult.

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
  • Microstrip feed capacitor loading tri-polarized slot antenna
  • Microstrip feed capacitor loading tri-polarized slot antenna

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The present invention will be further described below in conjunction with drawings and embodiments.

[0012] The embodiment that the present invention adopts is: the three-polarized slot antenna of microstrip feeding capacitive loading comprises three mutually vertically placed single-polarized capacitive-loaded antennas 13; each single-polarized capacitive-loaded antenna 13 comprises a medium Substrate 1, metal ground 2, radiation slot 3, and microstrip feeder 4 arranged on the dielectric substrate 1; one side of the dielectric substrate 1 is the metal ground 2, and the other side of the dielectric substrate 1 is the conduction band 5 of the microstrip feeder 4; There is a radiation slot 3 on the metal ground 2, the shape of the radiation slot 3 is a rectangle, and the radiation slot 3 is located in the center of the metal ground 2; the two ends 6 of the radiation slot 3 are short-circuited; the radiation slot 3 is removed from the microstrip feeder 4 intersecting part...

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

A three-polarization slot antenna loaded with microstrip feeding capacitance relates to a slot antenna, which is composed of three mutually perpendicularly placed single-polarization antennas (13); each antenna (13) includes a dielectric substrate (1), The metal ground (2) on the dielectric substrate (1), the radiation slot (3), and the microstrip feeder (4); the metal ground (2) has the radiation slot (3); the two ends of the radiation slot (3) (6) short circuit; Remove other parts (9) of the part (8) intersecting with the microstrip feeder line (4) at the radiation slot (3) to have several capacitors (7) connected in parallel across its edge; the microstrip feeder line ( 4) One end is the antenna port (10), and the other end of the microstrip feeder (4) crosses the radiation slot (3) and is connected to the metal ground (2) through the shorting pin (12) at the edge (11). The antenna reduces antenna size, cross polarization, shadowing and improves isolation.

Description

technical field [0001] The invention relates to a slot antenna, in particular to a three-polarization slot antenna loaded with a microstrip feeding capacitance. Background technique [0002] The slot antenna is the dual antenna of the dipole antenna and has a wide range of applications. However, the ordinary slot antenna not only needs half the wavelength of the radiation slot itself, but also needs a large metal ground area around the radiation slot, usually the length of the metal ground is 1 / 2 larger than the length of the slot One wavelength, the width of the metal ground is one-half wavelength larger than the width of the slot. Multi-polarization MIMO can effectively improve spectrum efficiency and channel capacity. In order to apply MIMO technology to small terminals, antennas with different polarizations need to be co-located. A large metal ground will have a shielding effect on the radiation of the antenna, making the slot antenna unsuitable for co-located multiple...

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): H01Q1/38H01Q1/48H01Q13/10
CPCH01Q1/38H01Q1/48H01Q13/10
Inventor 刘蕾蕾李子杨
Owner NANJING UNIV OF POSTS & TELECOMM
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