Multifunctional microwave device with controllable polarization
A microwave device, multi-functional technology, applied in the direction of electrical components, antennas, etc., can solve the problem of not giving the actual efficiency of polarization conversion, single function, etc., to achieve the effect of simple and convenient assembly, thin thickness, and mature processing technology
Active Publication Date: 2014-08-20
SOUTHEAST UNIV
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Problems solved by technology
Although this kind of metamaterial polarization converter can realize polarization conversion, the defect of using this type of device is that the function is single, and the actual efficiency of polarization conversion has not been given.
Method used
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Embodiment Construction
[0038] figure 1 It is a structural schematic diagram of a polarization-controllable multifunctional microwave device in an embodiment of the present invention. Such as figure 1 As shown, the present invention provides a polarization-controllable multifunctional microwave device 1, which can control the space of electromagnetic waves with different polarization modes. The microwave device 1 includes: a plurality of core boards 2 stacked in parallel. One surface of a core board 2 is provided with M*N (wherein, M, N is a natural number) resonant basic units 3 arranged in a matrix, preferably, N=3, and the number of layers of the core board 2 can be determined according to the cross-section of the microwave device 1 The shape can be increased or decreased, the length of each core board 2 can be determined according to the cross-sectional shape of the microwave device 1, and the number of resonant basic units 3 in each column can be determined according to the length of the core b...
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Abstract
The invention relates to a multifunctional microwave device with controllable polarization. The multifunctional microwave device is formed by arraying multiple layers of core substrates by two periods at intervals. The gap between every tow adjacent core substrates (2) is filled with foams (4). The number of the layers of the core substrates (2) can be increased or decreased according to the shape of the section of the microwave device (1), and the length of each core substrate (2) can be determined according to the shape of the section of the microwave device (1). The core substrates (2) are planar dielectric substrates, wherein resonance elementary units (3) are periodically and longitudinally arranged on one plane, each line of the core substrates (1) is composed of three resonance elementary units (3), and the number of the resonance elementary units (3) in each column can be determined according to the length of the core substrates (2). Space band-pass filtering, space all-pass filtering and polarization conversion can be performed on electromagnetic waves which are incident in different linear polarization modes within a certain frequency band.
Description
technical field [0001] The invention relates to a polarization controllable multifunctional microwave device, in particular to a polarization controllable multifunctional microwave device applied in the fields of electromagnetic wave space filtering, polarization conversion and the like in the microwave frequency band. Background technique [0002] Electromagnetic wave filtering and polarization conversion have always been the focus of electromagnetic wave research. In the microwave frequency band, electromagnetic wave filtering and polarization conversion are widely used in circuit systems and antenna systems. [0003] Traditional electromagnetic wave filtering mainly relies on microwave circuits, and filters realized by structures such as waveguides and microstrip lines have complex structures and are not cost-effective. At present, some other electromagnetic wave filtering devices have also appeared, which mainly place the photonic crystal composed of permanent ferrite i...
Claims
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Inventor 马慧锋孔故生崔铁军
Owner SOUTHEAST UNIV