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Dumbbell-shaped slot coupling excitation-based wideband low-profile microstrip antenna

A microstrip antenna and dumbbell-shaped technology, applied in antennas, antenna couplings, antenna components, etc., can solve the problems of poor scalability, insufficient space for improving antenna bandwidth and radiation performance, etc., and achieve large bandwidth improvement space and compressed profile height effect

Active Publication Date: 2017-06-23
CNGC INST NO 206 OF CHINA ARMS IND GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to propose a novel slot-coupled excitation based on dumbbell shape to solve the problems of insufficient space for improving the antenna bandwidth and radiation performance and poor scalability of the existing several slot-coupled feeding structures in the prior art. Broadband Low Profile Microstrip Antenna

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  • Dumbbell-shaped slot coupling excitation-based wideband low-profile microstrip antenna
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  • Dumbbell-shaped slot coupling excitation-based wideband low-profile microstrip antenna

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Embodiment Construction

[0023] The present invention will now be further described in conjunction with the embodiments and drawings:

[0024] Broadband low-profile microstrip antenna based on dumbbell-shaped slot coupling excitation, using slot-coupled feed multi-layer microstrip structure, including rectangular radiation patch, dumbbell-shaped coupling slot, composite feeder, metal floor, shielding structure and SMP connection Device. The entire antenna is composed of four layers of dielectric plates laminated, and the dielectric constant ε of the multilayer plate material is selected r =3 TaconicTSM-DS3 high-frequency dielectric substrate, the plates are crimped by the prepreg film, the selected prepreg material is the dielectric constant ε r = 2.7 Taconic FR-27.

[0025] The top layer of the antenna is a rectangular radiation patch, and the size of the patch determines the main resonance frequency of the antenna. A dumbbell-shaped gap is corroded on the inner grounding plate under the patch substrate....

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Abstract

The present invention relates to a dumbbell-shaped slot coupling excitation-based wideband low-profile microstrip antenna. The dumbbell-shaped slot coupling excitation-based wideband low-profile microstrip antenna comprises a rectangular radiation patch, a metallized isolation via hole array, an inner-layer metal ground board, a dumbbell-shaped coupling slot, a strip line feeder, a quasi-coaxial vertical interconnection structure, a microstrip feeder, an annular opening pad and an SMP connector for feeding. The antenna is constructed by using a laminated PCB technology; a three-dimensional transmission structure is constructed through a microstrip-quasi-coaxial metallized via hole-strip line structure; and the rectangular radiation patch is excited based on the special dumbbell-shaped coupling slot. The antenna has the advantages of compact structure, small horizontal dimension, low profile, low cost, easiness in processing, easiness in integration and the like, and can meet the use requirements of 12 GHz-to-18 GHz Ku bands and is very suitable for being applied to a Ku- band wideband phased array system.

Description

Technical field [0001] The invention relates to a broadband low-profile microstrip antenna based on dumbbell-shaped slot coupling excitation, which can be used as a radiation unit of a Ku-band broadband phased array system and belongs to the technical field of wireless communication system antennas. Background technique [0002] With the rapid development of sensor systems and satellite communication systems, broadband active phased arrays with fast beam scanning and adaptive beam forming will become their mainstream hardware solutions. As an important part of the active phased array, the characteristics of the broadband antenna element have a crucial impact on the final performance of the array: first, the lateral size of the element determines the scanning coverage of the array in the working frequency band; secondly, the element The efficiency directly affects the range and power of the system; the matching and coupling characteristics of the unit determine the wide-angle airs...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q1/50H01Q1/48H01Q1/52H01R4/02H01R4/04
CPCH01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q1/526H01R4/029H01R4/04
Inventor 王元源郑慕昭华根瑞丁若梁
Owner CNGC INST NO 206 OF CHINA ARMS IND GRP
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