Planar Balun
A technology of planar and transmission lines, applied in the field of planar baluns, can solve the problems of difficult application of miniaturized low-frequency antennas and high profile height, and achieve the effect of reducing the profile height and avoiding current reflection
Pending Publication Date: 2018-04-20
成都芯通软件有限公司
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
[0002] At present, because the traditional balun used in low frequency is matched by the method of magnetic core and coaxial line, resulting in a high profile height, it is difficult to apply in the miniaturized low frequency antenna
Method used
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[0019] The present invention will be further described in detail below in conjunction with test examples and specific embodiments. However, it should not be understood that the scope of the above subject matter of the present invention is limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.
[0020] The planar balun of the present invention includes a coaxial feed port and a dielectric substrate provided with a first transmission line and a second transmission line.
[0021] Wherein, the first transmission line and the second transmission line both include two transmission sections and a metallized via hole, and the metallized via hole passes through the dielectric substrate for connecting The two transmission segments on .
[0022] The coaxial feed port passes through the dielectric substrate, and the coaxial external input end of the coaxial feed port is connected to a...
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The invention discloses a planar Balun, which includes a coaxial fee port and a dielectric substrate provided with a first transmission line and a second transmission line. Each of the first transmission line and the second transmission line includes two transmission sections and a metallized via hole, and the metallized via hole passes through the dielectric substrate and is used for connecting the two transmission sections located on different faces of the dielectric substrate; and the coaxial feed port passes through the dielectric substrate, the coaxial outer input end of the coaxial feedport is connected with a transmission section of the first transmission line, and the coaxial inner input end of the coaxial feed port is connected with a transmission section of the second transmission line, so that output currents of the two transmission sections of the first transmission line and the second transmission line are in the same phase. Thus, the section height of the planar Balun isreduced, and the two parallel transmission lines are utilized to realize conversion from unbalance to balance, thereby avoiding current reflection.
Description
technical field [0001] The invention relates to a plane balun, in particular to a plane balun which uses parallel transmission lines to realize unbalanced to balanced conversion. Background technique [0002] At present, because the traditional balun used in low frequency is matched by magnetic core and coaxial line, resulting in high section height, it is difficult to apply in miniaturized low frequency antenna. Contents of the invention [0003] The purpose of the present invention is to provide a planar balun that can be applied to miniaturized low-frequency antennas. [0004] In order to realize the above-mentioned purpose of the invention, the present invention provides the following technical solutions: [0005] A planar balun, which includes a coaxial feed port and a dielectric substrate provided with a first transmission line and a second transmission line; wherein, [0006] Both the first transmission line and the second transmission line include two transmissio...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01P5/10
CPCH01P5/10Y02D30/70
Inventor 黄李冬
Owner 成都芯通软件有限公司