Microstrip antenna combination structure having coupling suppression effect
A technology of microstrip antenna and combination structure, which is applied in the direction of antenna combination with different interactions, antenna grounding switch structure connection, antenna grounding device, etc., can solve the problem of low applicability, achieve convenience in implementation, improve isolation, and manufacture simple effect
Active Publication Date: 2019-05-17
BEIHANG UNIV
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Problems solved by technology
Changing the type of antenna will have a great impact on the original working performance of the antenna, and the increasingly mature aviation integrated electronic system makes the position and working performance of the antenna relatively fixed. If you want to change the type of antenna, it will have an impact on other electronic systems , less applicable
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Embodiment Construction
[0048] The present invention will be further described in detail below in conjunction with the accompanying drawings and Embodiment 1.
[0049] see figure 1 , Figure 1A As shown, the present invention has designed a kind of microstrip antenna composite structure with coupling suppression effect, and it is made of microstrip antenna patch 11A, microstrip antenna patch 11B, metal floor 12, dielectric plate 13 and three metal short-circuit probes 14 poses. The microstrip antenna patch 11A and the microstrip antenna patch 11B are manufactured on the dielectric board panel 13A of the dielectric board 13 using a copper-clad process, and the metal floor 12 is manufactured on the other side of the dielectric board panel 13A of the dielectric board 13 using a copper-clad process on the panel (not shown in the figure). The copper clad thicknesses of the microstrip antenna patch 11A, the microstrip antenna patch 11B and the metal floor 12 are all 0.018-0.035 mm. The short-circuit p...
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The invention relates to a microstrip antenna combination structure having a coupling suppression effect. The microstrip antenna combination structure comprises two microstrip antenna units and a plurality of short-circuit probes, wherein each microstrip antenna unit comprises a metal floor, a dielectric plate and a microstrip antenna patch, penetrating holes are formed in the dielectric plate, the short-circuit probes are arranged in the penetrating holes and are in cylindrical shapes, two ends of each short-circuit probe are respectively connected with the microstrip antenna patch and the metal floor, penetrating holes are formed in the dielectric plate and the metal floor, and the penetrating holes are used as feeding ports and are used for coaxially feeding during working of an antenna. By the microstrip antenna combination structure, the stray emission of a microstrip antenna combination outside a working band can be effectively suppressed, and the electromagnetic compatibility ofthe microstrip antenna combination is improved; the isolation degree of two microstrip antennas can be improved, and coupling can be effectively suppressed; and in order to adjust the working frequency of the antenna, different application scenes of the antenna are adapted, the antenna size can be flexibly changed, the antenna structure is not needed to be substantially changed, and the microstrip antenna combination structure is simple to fabricate and convenient to implement.
Description
technical field [0001] The invention relates to an antenna combination, more particularly, an antenna combination composed of two different-frequency microstrip antennas with a coupling suppression effect. The antenna combination involved in the present invention is suitable for systems such as airborne common-aperture antennas, and is an antenna combination with electromagnetic compatibility. Background technique [0002] The number, type, and layout of airborne antennas are limited by various factors. In order to meet the requirements of aircraft aerodynamic performance and weight distribution, airborne antennas usually choose low-profile, lightweight antenna types, such as microstrip antennas, gradient slot antennas, etc. In order to meet the limited space requirements of the aircraft, the antennas are often designed on the same aperture. Combinations of microstrip antennas similar to common aperture are widely used in new models of aircraft. [0003] However, the comm...
Claims
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IPC IPC(8): H01Q21/29H01Q1/38H01Q1/48H01Q1/50
Inventor 吴琦苏东林
Owner BEIHANG UNIV