Feed structure, microwave radio frequency device and antenna
A microwave radio frequency, feeding technology, applied in the field of communication, can solve the problems of large loss and low phase shift.
Pending Publication Date: 2021-02-23
BOE TECH GRP CO LTD +1
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Problems solved by technology
The traditional dielectric adjustable phase shifter uses a single-wire transmission structure to achieve phase shifting effect by adjusting the signal phase speed, but the problem with this design method is that the loss is relatively large and the phase shift degree within the unit loss is relatively low
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[0030] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0031] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure shall have the usual meanings understood by those skilled in the art to which the present disclosure belongs. "First", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Likewise, words like "a", "an" or "the" do not denote a limitation of quantity, but mean that there is at least one. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Wor...
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The invention provides a feed structure, a microwave radio frequency device and an antenna, and belongs to the technical field of communication. The feed structure comprises a first substrate, a second substrate, a reference electrode and a dielectric layer, wherein the first substrate and the second substrate are oppositely arranged; the space between the first substrate and the second substrateis filled with the dielectric layer; the first substrate comprises a first substrate, a coupling branch and a time delay branch, wherein the coupling branch and the time delay branch are located on the side, close to the dielectric layer, of the first substrate. The coupling branch and the time delay branch are respectively connected to two output terminals of a power divider; the time delay branch and the coupling branch form a current loop with the reference electrode; the second substrate comprises a second substrate and a receiving electrode located on the side, close to the dielectric layer, of the second substrate. The receiving electrode and the coupling branch form a coupling structure, and orthographic projections of the receiving electrode and the coupling branch on the first substrate are at least partially overlapped; the line length formed by the orthographic projections of the coupling branch and the receiving electrode on the first substrate is different from the line length of the time delay branch, so that the phases of microwave signals transmitted by the coupling structure and the time delay branch are different.
Description
technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a feeding structure, a microwave radio frequency device and an antenna. Background technique [0002] A phase shifter is a device that adjusts the phase of electromagnetic waves, and is widely used in various communication systems, such as satellite communication, phased array radar, remote sensing and telemetry, etc. Dielectric tunable phase shifter is a device that realizes the phase shift effect by controlling the dielectric constant of the dielectric layer. The traditional dielectric tunable phase shifter uses a single-wire transmission structure to achieve a phase shift effect by adjusting the signal phase velocity, but the problem with this design method is that the loss is relatively large and the degree of phase shift within a unit loss is relatively low. Contents of the invention [0003] The present invention aims to solve at least one of the techni...
Claims
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Login to View More IPC IPC(8): H01Q1/50H01Q3/36
CPCH01Q1/50H01Q3/36H01P5/10H01P1/184H01P1/18H01P1/20H01P5/12
Inventor 贾皓程丁天伦王瑛武杰李亮唐粹伟李强强
Owner BOE TECH GRP CO LTD