Level meter antenna RF board, antenna structure and antenna system
A technology of antenna structure and level meter, which is applied in the direction of antenna grounding switch structure connection, radiation element structure, antenna, etc., to reduce the impact, extend the distance, and meet the requirements of high temperature resistance
Active Publication Date: 2021-04-06
北京微度芯智科技有限责任公司
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Problems solved by technology
[0003] The FMCW radar level gauge also has higher requirements for the antenna system, requiring the system to have a wide frequency band and high gain and low side lobes. In terms of environmental adaptability, the high temperature environment has always been a problem that limits the use of radar level gauges.
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[0024] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0025] In the description of the present invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc. indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only In order to facilitate the description of the present invention and simplify the description, it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific ...
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The invention discloses a level meter antenna radio frequency board, an antenna structure and an antenna system, which include a signal transmission layer, and are provided with a ring power divider, and the ring power divider has a plurality of ports, and each port is connected with a strip line; The first metal formation layer is arranged above the signal transmission layer, and the first etching part is arranged on the first metal formation layer; the second metal formation layer is arranged below the signal transmission layer; the insulating layer is arranged on the signal transmission layer, the first metal formation layer Between the formation and the second metal formation; a plurality of metal vias arranged along the annular power divider, the stripline and the first etching; a mode converter probe arranged on the signal transmission layer and located in the first etching In the corresponding second etching part, the mode converter probe is connected to the common port through one of the striplines. The invention realizes the conversion of the electromagnetic wave transmission structure from a planar structure to a three-dimensional structure, and prolongs the distance between the radio frequency device on the antenna radio frequency board of the level gauge and the high temperature environment, so as to meet the high temperature resistance requirement of the antenna system of the level gauge.
Description
technical field [0001] The invention relates to the technical field of level gauge measurement, in particular to a level gauge antenna radio frequency board, an antenna structure and an antenna system. Background technique [0002] In recent years, level meter measurement technology has been widely used in petroleum, chemical, construction, mining and other industrial production fields, which is of great significance for improving product quality, optimizing process control, and realizing environmental protection. With the acceleration of the automation process, the demand for level meters in major related companies continues to increase. Level gauges are divided into contact level gauges and non-contact level gauges. Contact level gauges have disadvantages such as poor stability, low measurement accuracy, and single application scenarios, while non-contact level gauges are mostly antenna-type Radar level gauge has many advantages such as high measurement accuracy, can meet...
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IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q23/00
CPCH01Q1/38H01Q1/48H01Q1/50H01Q1/52H01Q23/00
Inventor 付国盛
Owner 北京微度芯智科技有限责任公司