Antenna based on composite right/left-handed transmission line unit
A composite technology of left and right hands and transmission lines, applied in antennas, electrical components, radiating elements, etc., can solve the problems of fixed frequency ratio, large volume, and single polarization mode, and achieve free frequency ratio adjustment, small size, and universal application sexual effect
Inactive Publication Date: 2015-11-25
AIR FORCE UNIV PLA
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Problems solved by technology
[0012] Whether it is the patch method or the resistive loading method to design the dual-frequency antenna, its essence is to use the phase lag effect of the traditional right-handed transmission line. Therefore, the dual-frequency antenna designed based on the right-handed transmission line often has large volume, fixed frequency ratio, and polarization mode. Single inherent disadvantage, at the same time the frequency ratio is not flexible enough to adjust
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[0032] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0033] like figure 1 As shown, the embodiment of the present invention provides an antenna based on a composite left-handed transmission line unit, including: a dielectric substrate 1, the upper and lower surfaces of the dielectric substrate 1 are respectively printed with a first metal layer 2 and a second metal layer 3; The first metal layer 2 is provided with a composite left-handed transmission line unit, and the center of the second metal layer 3 is provided with a reverse split ring 6 ; the two sides of the dielectric substrate are respectively provided with cable connectors 8 .
[0034] As a preference, the composite left-handed transmission line unit is composed of a central conductor strip 9 and conductor planes 10 located on both sides, the central conductor strip 9 is provided with a pair of interdigitated capacitors 4 symmetrically ...
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The invention discloses an antenna based on a composite right / left-handed transmission line unit. The antenna comprises a dielectric substrate, wherein the upper surface and the lower surface of the dielectric substrate are respectively printed with a first metal layer and a second metal layer, the composite right / left-handed transmission line unit is arranged on the first metal layer, an inverse split ring is arranged at the center of the second metal layer, and the two side surfaces of the dielectric substrate are respectively provided with a cable joint. With the adoption of the technical scheme disclosed by the invention, the antenna has the characteristics of small volume, the frequency ratio is adjusted more freely, and linear polarization and circular polarization can be shared.
Description
technical field [0001] The invention belongs to the technical field of antennas, in particular to an antenna based on a composite left and right hand transmission line unit. Background technique [0002] Early radio equipment generally worked in a specific frequency band. However, with the development of wireless communication technology and the continuous increase of demand, it is sometimes required that the wireless communication system can work in different frequency bands. In this case, when the two frequency bands are relatively close to each other, we can use broadband or ultra-wideband antennas to cover these frequency bands. But when these frequency bands are relatively far apart, the difficulty of this antenna design will be quite large, and the possibility of realization will be relatively small. Therefore, two sets of antenna systems can be used to correspond to different transceiver devices, which is no different from the original antenna design, and the interf...
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IPC IPC(8): H01Q1/38H01Q13/08
Inventor 王光明周成王亚伟梁建刚张小宽高向军赵辉
Owner AIR FORCE UNIV PLA