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Slit loading microstrip side-fed array antenna

An array antenna and slot technology, which is applied in the field of slot-loaded microstrip side-feed array antennas, can solve the problems of inability to realize and crowd the center structure, and achieve the effects of compact structure, easy processing, strong practicability and application prospects.

Inactive Publication Date: 2017-03-15
SHANGHAI DIANJI UNIV
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Problems solved by technology

[0004] The microstrip array designs in the above literature all adopt the center feed structure, but when two or more feed structures are required for (active and passive) dual-frequency composite antennas or multi-frequency composite antennas, the use of center feed will make the center The structure is crowded and even impossible to achieve

Method used

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  • Slit loading microstrip side-fed array antenna
  • Slit loading microstrip side-fed array antenna

Examples

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Embodiment Construction

[0014] Below in conjunction with specific embodiment, further illustrate the present invention. It should be understood that these examples are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of the present application.

[0015] The slot-loaded microstrip edge-fed array antenna provided in this embodiment uses a slotted rectangular patch as the radiation unit, and the left and right ends of the slotted rectangular patch are equipped with a self-loading structure for capacitively matching the antenna. The edge-feed and center-short-circuit structure is adopted, and the sidelobe of the microstrip antenna array is realized by the quarter-wavelength...

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Abstract

The invention provides a slit loading microstrip side-fed array antenna which is characterized in that a slit rectangular patch is used as a radiating element, the left and right ends of the slit rectangular patch are provided with self-loading structures for capacitive matching of the antenna; each linear array uses side-fed center-short-circuit structure; and microstrip antenna array minor lobe is achieved through a microstrip quarter wavelength impedance transformation section. The invention provides a novel side-fed form with for side feed and center short circuit, which corresponds to a fact that an electromagnetic wave encounters the short circuit structure and then the energy returns to each radiating element. The cone distribution of the array is achieved by a quarter short circuit block. The antenna has a low minor lobe, is easy to process, compact in structure, and easy to mix with other antenna arrays, satisfies a requirement for mixing and being compatible with other antenna arrays, and has a strong practical and application prospect.

Description

technical field [0001] The invention relates to a slot-loaded microstrip edge-fed array antenna, which belongs to the technical fields of dual-band communication, radar and remote sensing. Background technique [0002] Modern electronic warfare equipment is moving towards the direction of multi-functional integration, small integration, modularization and intelligence. The traditional monopulse system mostly adopts waveguide structure, and the volume and weight of the antenna are relatively large, and it is very difficult to realize the combination of two waveguide antennas in terms of design and processing. Therefore, it is increasingly important to study miniaturized, easy-to-recombine, and ingeniously structured low-sidelobe monopulse antennas. Considering the characteristics of light weight, easy integrated design with integrated circuits, and low cost of microstrip antennas, microstrip antennas have gradually entered the field of vision of researchers and gradually bec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/50H01Q21/00
CPCH01Q1/38H01Q21/0006
Inventor 姚凤薇
Owner SHANGHAI DIANJI UNIV
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