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Embedded broadband dually-polarized antenna

A dual-polarized antenna, embedded technology, applied in slot antennas, antenna grounding switch structure connection, radiating element structure and other directions, can solve problems such as hindering the practical application of cavity-backed slot antennas, and achieve simple structure and good application prospects. , the effect of easy processing

Active Publication Date: 2016-12-14
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, under the current technical background, it is difficult for the cavity-backed dual-polarization slot antenna to have broadband, high isolation and stable radiation performance at the same time. Practicality

Method used

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  • Embedded broadband dually-polarized antenna
  • Embedded broadband dually-polarized antenna
  • Embedded broadband dually-polarized antenna

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Experimental program
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Embodiment

[0030] combine figure 1 , 2 , 3, 4, 5, and 6, the structure of the present invention is: a first dielectric substrate 1 located on the upper layer, a second dielectric substrate 2 located on the lower layer, etched below the first dielectric substrate 1 to complete the antenna signal The "cross" cross-shaped slit radiation structure 3 for transmitting or receiving, the first microstrip line 4a above the first dielectric substrate 1, the second microstrip line 4b below the second dielectric substrate 2, and the first microstrip line The first metal via 5a at the end of the stripline 4a short-circuited with the slot radiation structure 3, the second metal via 5b at the end of the second microstrip line 4b short-circuited with the slot radiation structure 3, and the first feeding coaxial line 6a , the second feeding coaxial line 6b, and the metal cavity structure 7 connected to the slot radiation structure 3 under the first dielectric substrate 1 .

[0031] The slit radiation s...

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Abstract

The invention discloses an embedded broadband dually-polarized antenna. The antenna comprises a first dielectric substrate located on the upper layer, a second dielectric substrate located on the lower layer, a cross-shaped gap radiation structure etched under the first dielectric substrate, a first microstrip line located on the first dielectric substrate, a second microstrip line located under the second dielectric substrate, a first metal via hole located in the tail end of the first microstrip line and connected with the gap radiation structure in a short-circuit mode, a second metal via hole located in the tail end of the second microstrip line and connected with the gap radiation structure in a short-circuit mode, a first feed coaxial line, a second feed coaxial line and a metal cavity structure located under the first dielectric substrate and connected with the gap radiation structure. The impedance of the antenna is 32% larger than the bandwidth, the degree of isolation of two ports is larger than 46 dB, a radiation pattern is stable, and the antenna is simple in structure and easy to process and has good application prospects in the wireless communication field and the conformal antenna field.

Description

technical field [0001] The invention relates to wireless communication antenna technology, in particular to an embedded broadband dual-polarization antenna. Background technique [0002] With the development of wireless communication technology, wireless communication has become an indispensable part of daily life. Different wireless communication systems work in different frequency bands. Broadband antennas can work in multiple frequency bands to meet people's needs for high-speed communication. [0003] The dual-polarized antenna can receive or transmit two electromagnetic waves with mutually orthogonal polarizations at the same time, which can greatly improve the information transmission rate of the wireless communication system, and can effectively suppress the rapid attenuation of the signal caused by the multipath propagation effect, and improve the communication quality. [0004] The slot antenna is a kind of antenna formed by slotting on the metal surface. The cavit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q13/18
CPCH01Q1/38H01Q1/50H01Q13/18
Inventor 李融林牛耀崔悦慧高晓娜
Owner SOUTH CHINA UNIV OF TECH
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