Miniaturized broadband dual-polarized antenna feed network

A dual-polarized antenna and feed network technology, applied in the microwave field, can solve problems such as unfavorable engineering applications and occupied space

Active Publication Date: 2017-06-16
LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This broadens the working frequency band on the one hand, but also takes up a lot of space on the other hand, resulting in the size of the dual-

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
  • Miniaturized broadband dual-polarized antenna feed network
  • Miniaturized broadband dual-polarized antenna feed network
  • Miniaturized broadband dual-polarized antenna feed network

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment

[0025] This embodiment works in the X-band. The overall size of the microstrip board 6 shown in FIG. 3 is 14.5mm×14.5mm×1.016mm, the distance between the ports P2 and P3 is 12.4mm, the length of the groove line 13 is 8.06mm, and the height of the air cavity 5 is 4mm. Rogers RT / duroid 6002 is selected as the dielectric substrate 10 and 11 . The simulation curve of the structure is as Figure 4(a)-Figure 4(c) As shown, within 40% of the bandwidth, the standing wave at the input end is lower than 1.4, the output signal amplitudes of the two output ends are basically the same, and the phase difference is within 180°±0.5°.

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 provides a miniaturized broadband dual-polarized antenna feed network, which is formed by an upper-layer three-port network (1) and a lower-layer three-port network (2). The upper-layer three-port network (1) and the lower-layer three-port network (2) are exactly same in structure; and the lower-layer three-port network (2) is arranged in a manner of rotating around a vertical axis for 90 degrees with respect to the upper-layer three-port network (1). According to the feed network, the two ends of a ladder ring for impedance matching are flattened to enable the length of a slot line to be smaller than the distance between ports, at the two ends of a diagonal line, of a dual-polarized antenna, and reduction of the length of the slot line provides space for up-down stack-up arrangement of the two three-port networks, so that the dual-polarized antenna feed network is allowed to be more compact in structure, is fitter to the size of the dual-polarized antenna.

Description

technical field [0001] The invention belongs to the field of microwave technology, and in particular relates to a miniaturized broadband dual-polarization antenna feeding network. Background technique [0002] Dual-polarized antennas are widely used in modern wireless communication systems because of their advantages such as frequency multiplexing, integrated transceiver, polarization diversity, and polarization agility. The development of broadband and miniaturization of dual-polarized antenna puts forward higher requirements for the design of its feed network. [0003] An existing broadband dual-polarized antenna includes four ports distributed at four vertices of a square. A polarization component of the dual-polarized antenna can be excited by simultaneously feeding equal-amplitude and anti-phase signals to the two ports located on the diagonal. In 2008, Kongpop U-yen and others proposed a broadband magic T structure that can output equal-amplitude anti-phase signals i...

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): H01Q1/48H01Q1/50
Inventor 周丹晨张兆成孙丹
Owner LEIHUA ELECTRONICS TECH RES INST AVIATION IND OF CHINA
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