Linearly polarized wave arbitrary polarization angle converter
A converter and linear polarization technology, applied in the electromagnetic field, can solve the problem of reduced polarization conversion efficiency, and achieve the effects of low reflection loss, small interference and simple structure
Pending Publication Date: 2020-07-10
NANJING UNIV OF INFORMATION SCI & TECH
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Most linearly polarized wave polarization converters designed based on artificial electromagnetic structures have the characteristic of polarization selection, that is, the incoming wave must be in the same polarization direction as the artificial electromagnetic structure unit, otherwise the incoming wave will be reflected and the polarization conversion efficiency will decrease
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0016] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
[0017] Such as figure 1 As shown, the polarization angle converter is composed of 20×20 artificial unit structures arranged regularly along the orthogonal direction. In Figure 2(a) and Figure 2(b), in Figure 2(a)-2.2(b), the structure of each unit in the array is illustrated: structures 1 and 2 are copper rectangular metal patches, Each structure includes two pieces, the front and the back, and each piece has the same size, 12.7mm×3mm; structure 3 is a copper-plated hole, with a radius of 0.4mm; structure 4 is a copper metal ground plate, with a size of 21mm×21mm; structure 5 It is two F4B dielectric substrates, each with a size of 21mm×21mm×4mm, a relative dielectric constant of 2.65, and a loss tangent of 0.001.
[0018] image 3 (a) is the polarization azimuth Schematic diagram of the normal incident ray polarization electric field vector, ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a linear polarization wave arbitrary polarization angle converter with a planar artificial electromagnetic structure, which is used for realizing angle deflection of linear polarization electromagnetic waves polarized in any direction. Aresonance unit is formed by compounding three parts: four rectangular copper patches, two insulating F4B dielectric substrates, and a copper metal foundation plate pressed between the two dielectric substrates. Two holes are dug in the dielectric substrate, and the edges of the holes are plated with copper. The polarization conversion mechanism is as follows:when 5.8 GHzlinearly-polarized waves polarized in any direction are incident to the front surface of the structure,resonance is generated through coupling of the planar single-stage sub-antenna, energy received by the front monopole sub-antenna is coupled to the back monopole sub-antenna through the copper-plated hole, and angle rotation of incident polarized waves is achieved through orthogonal decomposition of an incident electric field and synthesis of a transmission orthogonal electric field. Compared with atraditional polarization conversion device, theconverter hasthe advantages of simple structure, low insertion loss, high polarization conversion efficiency and low preparation cost, and is suitable for any-angle conversion of linearly polarized waves.
Description
technical field [0001] The invention belongs to the electromagnetic technology, adopts a planar artificial electromagnetic structure, and specifically relates to an arbitrary polarization angle converter for linearly polarized waves. Background technique [0002] In today's information age, as an important device to control the propagation state of electromagnetic waves, the polarization converter is generally loaded on the front end of the antenna radiation aperture to switch and control the polarization state of the radiated electromagnetic waves. Polarization converters are widely used in the fields of wireless communication and microwave imaging. The artificial electromagnetic structure is a periodic or non-periodic array structure composed of artificially designed units with special electromagnetic characteristics. These special electromagnetic functions are difficult or impossible for conventional materials in nature. Therefore, artificial electromagnetic structures ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H01Q15/24
CPCH01Q15/242
Inventor 王身云郑亚宇杨丹萍盛柯枫
Owner NANJING UNIV OF INFORMATION SCI & TECH