Dual-frequency dual-linear polarization phased-array antenna and antenna unit

A phased array antenna and antenna unit technology, applied in the directions of antenna, antenna coupling, antenna array, etc., can solve the problems of difficult to meet the high isolation requirements of satellite uplink and downlink communication, difficult to cover dual frequency bands for reception and transmission, and high profile.

Active Publication Date: 2020-12-22
BEIJING UNIV OF POSTS & TELECOMM
View PDF6 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of structure has a high profile, heavy weight, complex processing, and is difficult to integrate with the back-end RF circuit
[0004] However, the existing broadband dual-polarization microstrip patch is difficult to

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
  • Dual-frequency dual-linear polarization phased-array antenna and antenna unit
  • Dual-frequency dual-linear polarization phased-array antenna and antenna unit
  • Dual-frequency dual-linear polarization phased-array antenna and antenna unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0038]It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention shall have the usual meanings understood by those skilled in the art to which the present disclosure belongs. "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "connected" are not limited to physical or mechani...

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 dual-frequency dual-linear polarization phased-array antenna and an antenna unit, and the antenna unit comprises a hierarchical structure with a plurality of metal layers, and dielectric layers which are arranged between adjacent metal layers and are used for isolation, wherein the metal layers comprise a parasitic patch, a radiation patch, a transmitting feed network, afirst grounding metal plate, a second grounding metal plate and a receiving feed network, wherein the parasitic patch and the radiation patch are rectangular metal patches; the transmitting feed network feeds the parasitic patch and the radiation patch in an electromagnetic coupling mode; a gap is etched in the first grounding metal plate and is a common metal ground of the radiation patch, the transmitting feed network and the receiving feed network; a via hole opposite to the gap in the first grounding metal plate is etched in the second grounding metal plate; and the receiving feed networkfeeds the parasitic and radiation patches in a slot coupling mode. According to the invention, the low profile of the antenna and the performance of easy rear-end radio frequency integration can be realized through the microstrip patch, and the coverage of receiving and transmitting double frequency bands can also be realized.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a dual-frequency dual-line polarization phased array antenna and an antenna unit. Background technique [0002] With the explosive growth of business demands such as the global Internet and the Internet of Things, the low-orbit satellite constellation network has become a research hotspot at present and in the future, and the electronically scanned phased array antenna, as one of the core equipment on the satellite, has been proposed more strict requirements. Considering the satellite carrier platform and launch cost, the space-borne phased array antenna needs to meet low profile, light weight, and low-cost performance; considering the range of uplink and downlink frequency bands of satellite communications, different polarization forms, and the need to minimize the size of the antenna, Space-borne phased array antennas need to meet dual-frequency dual-polarizatio...

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): H01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q21/00H01Q23/00
CPCH01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q21/00H01Q23/00
Inventor 李秀萍黄雨菡
Owner BEIJING 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