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
CN106887690AActive Publication Date: 2017-06-23CNGC INST NO 206 OF CHINA ARMS IND GRP
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
CNGC INST NO 206 OF CHINA ARMS IND GRP
Publication Date
2017-06-23

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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.
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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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