A Tunable Terahertz Bandpass Filter
A band-pass filter, resonant layer technology, applied in waveguide-type devices, circuits, electrical components, etc., can solve the problems of high cost, external bias voltage, complex structure, etc., to achieve good stability, simple structure, practicality strong effect
Active Publication Date: 2021-11-16
HEFEI UNIV OF TECH
View PDF14 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
These methods have problems such as slow tuning and large delay, need to add bias voltage, difficult to control the tuning range, high cost, complex structure, etc.
In addition, in the existing tunable terahertz bandpass filters, the tunability is only the adjustable frequency of the passband, and the number of passbands is fixed, which also limits its application range
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
[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] The object of the present invention is to provide a terahertz bandpass filter with adjustable passband frequency and number of passbands. The terahertz bandpass filter includes N×N identical units, which are periodically arranged at On a plane perpendicular to the incident direction of the wave, there is no space between adjacent units, and N is a positive integer equal to or greater than 1. In this embodiment, N=3, such as figure 1 shown.
[0032] Suc...
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 |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a tunable terahertz bandpass filter. The tunable terahertz bandpass filter includes N×N identical filter units, and the filter units include a stacked first dielectric layer, a first resonant layer, and a deformable medium. layer, the second resonant layer, and the second dielectric layer; the first resonant layer and the second resonant layer are the same, both are patterned metal thin layers, and the resonance of the filter is changed by controlling the distributed load applied to the outer plane of the periodic unit frequency, so that the single passband is tuned to a dual passband. Compared with the existing tunable terahertz bandpass filter, the invention has the advantages of free conversion of single and double frequencies, fast tuning response, controllable range and simple structure.
Description
technical field [0001] The invention relates to the field of communication technology and terahertz functional devices, in particular to a tunable terahertz bandpass filter. Background technique [0002] In recent years, with the vigorous development of terahertz technology, the demand for corresponding functional devices has become higher and higher. For highly integrated terahertz systems, tunable filters with reliable performance are very important. At present, tuning methods are mostly realized by using special structures or materials to change the equivalent electrical parameters of the filter. Specifically, there are tuning methods based on temperature-sensitive materials, liquid crystals, and graphene. These methods have problems such as slow tuning and large delay, need to apply an external bias voltage, difficult to control the tuning range, high cost, and complex structure. In addition, in the existing tunable terahertz bandpass filters, only the frequency of the ...
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 Patents(China)
IPC IPC(8): H01P1/20
CPCH01P1/20
Inventor 阮久福姬生伟陶治兰凤
Owner HEFEI UNIV OF TECH