Double-frequency-point radio frequency tag sensor based on substrate integrated waveguide folding technology
A substrate-integrated waveguide and radio-frequency tag technology, applied in the field of sensors, can solve the problems of large overall structure and not meeting the manufacturing requirements of miniaturization, and achieve the effect of compact structure and reduced relative size
Active Publication Date: 2022-05-13
SOUTHWEST UNIV
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The purpose of the present invention is to provide a dual-frequency point radio frequency tag sensor based on substrate-integrated waveguide folding technology, which is used to solve the existing technical problems: the traditional wireless communication method is The antenna is directly connected to the microwave sensor for wireless signal transmission, and the overall structure is large, which does not meet the miniaturization manufacturing requirements of the existing industry
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
[0049] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0050] Such as figure 1 As shown in Figure 11, the dual-frequency point radio frequency tag sensor based on substrate-integrated waveguide folding technology proposed by the present invention is composed of a folded substrate-integrated waveguide reentrant resonant cavity with four capacitor columns and six-layer board as a whole. Very compact.
[0051] Referring to 1-3, the resonant cavity 1 is composed of a first dielectric substrate 1-1, a second dielectric substrate 1-2, a third dielectric substrate 1-3, a fourth dielectric substrate 1-4, and a fifth dielectric substrate 1- 5. The sixth diel...
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
| Property | Measurement | Unit |
|---|---|---|
| radius | aaaaa | aaaaa |
| radius | aaaaa | aaaaa |
| radius | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to the technical field of sensors, in particular to a double-frequency-point radio frequency tag sensor based on a substrate integrated waveguide folding technology. The sensor comprises a resonant cavity, wherein the resonant cavity is formed by longitudinally overlapping six dielectric substrates; each dielectric substrate comprises a top metal layer, a middle dielectric layer and a bottom metal layer, a plurality of metalized through holes are etched in the middle dielectric layer of each dielectric substrate, and an equivalent metal wall of the resonant cavity is defined by the metalized through holes. The sensor disclosed by the invention is formed by folding a reentrant resonant cavity with six layers of dielectric substrates and four capacitance columns, and the reentrant resonant cavity is a six-layer plate after being folded, so that the structure is very compact; the resonator used by the sensor is provided with two pairs of different capacitance columns, the two pairs of capacitance columns disturb all electric field modes in the resonator, and the obtained capacitance columns of the reentrant resonator and a gap area above the resonator are still enriched with a strong electric field.
Description
technical field [0001] The invention relates to the technical field of sensors, in particular to a dual-frequency point radio frequency tag sensor based on substrate-integrated waveguide folding technology. Background technique [0002] Microwave detection technology based on microwave sensors has many advantages, such as compact structure, fast and sensitive detection, non-contact measurement, real-time dynamic monitoring and convenient signal modulation to realize the integration of the Internet of Things, etc. This technology is mainly to detect the dielectric properties of the dielectric medium, and the cavity perturbation theory is the theoretical basis for using the resonator to detect the dielectric properties of the dielectric medium. Among all kinds of resonators suitable for microwave dielectric sensing and measurement, the reentrant resonator is favored because of its high quality factor and the advantages of highly concentrated electric field induced by the gap r...
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): H01P7/06H01Q13/10H01Q13/18H01Q1/38
CPCH01P7/065H01Q13/10H01Q13/18H01Q1/38
Inventor 黄杰付灵龙赵倩吴永烽
Owner SOUTHWEST UNIV