Novel printed circuit board slow wave transmission line
A printed circuit board and transmission line technology, applied in the microwave field, can solve the problems of unfavorable miniaturization of wireless communication systems, limited size reduction, and high manufacturing difficulty, and achieve the effects of miniaturization, low reflection loss, and low insertion loss
Inactive Publication Date: 2021-07-27
JIANGSU HUASHENG AUTOMOTIVE ELECTRONICS CO LTD
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Problems solved by technology
Due to the close relationship between the size of traditional radio frequency and microwave devices and their working wavelengths, they often have large sizes, which is not conducive to the miniaturization of wireless communication systems
Currently commonly used miniaturization methods are very limited in size reduction, making manufacturing difficult and costly
Method used
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[0016] 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.
[0017] refer to Figure 1-3 , a new type of printed circuit board slow wave transmission line, the slow wave line is a one-dimensional guided wave array obtained by connecting end to end of the same new type of slow wave structural units arranged in a periodical arrangement, including: a superstructure, and an arrangement adjacent to the superstructure The middle layer structure and the lower layer structure arranged adjacent to the middle layer structure; the...
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The invention discloses a novel printed circuit board slow wave transmission line. The novel printed circuit board slow wave transmission line comprises an upper-layer structure, a middle-layer structure attached to the upper-layer structure and a lower-layer structure attached to the middle-layer structure. The middle-layer structure comprises a top-layer medium and a bottom-layer medium attached to the top-layer medium, and a lower-layer complete floor is attached to the end face, away from the top-layer medium, of the bottom-layer medium; and the upper-layer structure comprises metal wires, the metal wires are arranged on one end face, far away from the bottom-layer medium, of the top-layer medium in a 1 * n period, metal patches are uniformly distributed below the metal wires, the metal patches are attached to one end face of the top-layer medium, and metal columns are fixedly connected to the metal patches. The phase velocity is low, the propagation constant is larger, and the larger electrical length can be achieved through the smaller physical length, so miniaturization is achieved, and the novel printed circuit board slow-wave transmission line is low in insertion loss, low in reflection loss and wide in working frequency band in the working frequency band of the novel printed circuit board slow-wave transmission line.
Description
technical field [0001] The invention relates to the technical field of microwaves, in particular to a novel printed circuit board slow-wave transmission line. Background technique [0002] Transmission line is one of the most important basic components in microwave technology. In addition to transmitting electromagnetic waves, it is also a component of various microwave components, such as resonators, filters, power splitters, directional couplers, etc. With the development of wireless communication and detection systems, people have higher and higher requirements for wireless communication circuits in terms of miniaturization, light weight, low cost, high efficiency and high integration. Due to the close relationship between the size of traditional radio frequency and microwave devices and their operating wavelengths, they often have large sizes, which is not conducive to the miniaturization of wireless communication systems. The currently commonly used miniaturization met...
Claims
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IPC IPC(8): H01P3/00H05K1/02
CPCH01P3/00H05K1/02
Inventor 扆梓轩陈远璐李美玲杨雪霞
Owner JIANGSU HUASHENG AUTOMOTIVE ELECTRONICS CO LTD