A Miniaturized Millimeter Wave RF Front-End
A radio frequency front-end, millimeter wave technology, applied in the millimeter wave field, can solve the problems of limited available area of the antenna and the inability to independently design the antenna and the radio frequency circuit, so as to reduce the leakage of the millimeter wave, make the selection more flexible, and improve the flexibility.
Active Publication Date: 2020-10-09
北京理工雷科空天信息技术有限公司
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Problems solved by technology
The disadvantage of this design is that the antenna and RF circuit cannot be designed independently, and the available area of the antenna is limited when the board area is limited, and the flexible design of the antenna cannot be carried out
Method used
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[0024] The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0025] The invention provides a miniaturized millimeter-wave radio frequency front end, selects a multi-layer dielectric board, arranges an antenna and a radio frequency circuit on the front and back of the same board respectively, and the antenna feeder and the radio frequency feeder are connected by a radio frequency transition passing through the board.
[0026] The miniaturized millimeter wave radio frequency front end includes an integrated radio frequency board, a transmitting antenna, a receiving antenna, a radio frequency chip, a radio frequency transition, an antenna feeder and a radio frequency feeder. Such as figure 1 As shown, the front 2 of the board is placed with the transmitting antenna 4 and the receiving antenna 5, as shown in figure 2 As shown, the radio frequency circuit such as the radio frequency chip 6 is placed on the reverse side...
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The invention provides a miniaturized millimeter wave radio frequency front end. With help of radio frequency transition having good performance, an antenna and a radio frequency circuit are disposedon a front surface and a rear surface of a radio frequency board card, and an antenna feeder and a radio frequency feeder are connected together by the radio frequency transition penetrating the board. The upper surface and the lower surface of the radio frequency transition are correspondingly provided with a plurality of metal through holes, and the centers of the metal through holes are connected by lines to form a rectangle, and dielectric between the rectangle on an antenna coupling surface and the rectangle on a radio frequency coupling surface is dielectric waveguide, and millimeter waves are transmitted between the antenna feeder and the radio frequency feeder by the dielectric waveguide. The size of the radio frequency front is reduced, and miniaturization is realized, and flexibility of antenna design is improved at the same time.
Description
technical field [0001] The invention relates to the technical field of millimeter waves, in particular to a miniaturized millimeter wave radio frequency front end. Background technique [0002] Millimeter waves are electromagnetic waves distributed in a wide frequency range from 30GHz to 300GHz, and have been widely used in radio astronomy, microwave remote sensing, meteorology and other fields. Compared with light waves, millimeter waves are not affected by day and night, nor are they affected by bad weather, enabling all-day, all-weather work. Compared with microwaves with lower frequencies, millimeter waves have wider bandwidths and shorter wavelengths, so the device size is smaller and the beam is narrower, which can improve system indicators. [0003] Millimeter wave radar is the development direction of radar technology from military to civilian and from low to high frequency. With the development and progress of radar technology, millimeter-wave radar has begun to b...
Claims
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IPC IPC(8): H04B1/40H01Q1/24
CPCH01Q1/241H04B1/40
Inventor 赵鑫刘峰梁燕丽刘勇
Owner 北京理工雷科空天信息技术有限公司