X-band negative magnetic permeability material wide band microstrip antenna and manufacturing method thereof
A technology of negative magnetic permeability material and microstrip antenna, which is applied in the direction of antenna, antenna grounding device, antenna grounding switch structure connection, etc., can solve the problems of narrow working bandwidth of microstrip antenna, great influence on antenna performance, and small antenna power capacity, etc. , to achieve the effects of suppressing lateral radiation, low cost, and increased gain
Inactive Publication Date: 2019-08-09
CHANGAN UNIV
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Problems solved by technology
[0003] However, the working bandwidth of the microstrip antenna is narrow, the gain is low, before cross polarization, the power capacity of a single antenna is small, the loss is large, the efficiency is low, and the dielectric substrate has a great influence on the performance of the antenna. Applications in instruments and equipment requiring high performance and sensitivity
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[0064] First, the parameter information in this embodiment is explained:
[0065] The length of the first dielectric substrate 2 and the second dielectric substrate 5 are both 36 mm and the width is 32 mm; the side length, line width, opening and lattice constant of the split resonator ring 1 are respectively a=4mm and w=0.3 mm, g=1mm, d=5mm; the thickness of the metal ground plate 6 is 35um. The first dielectric substrate 2 and the second dielectric substrate 5 are polytetrafluoroethylene substrates with a thickness of 1.5 mm, and the dielectric constant is 2.65; the distance between the first dielectric substrate 2 and the U-shaped slot patch antenna 4 is 19 mm, forming a The air cavity 3; the width of the U-shaped slot patch antenna 4 is 9.6mm, and the length is 17.8mm. The length of the horizontal slot at the bottom of the U-shaped slot is 3.5mm, and the width is 0.7mm. The central axis is symmetrical, the length of the vertical groove is 5.6 mm, and the width is 0.4 mm; ...
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The invention discloses an X-band negative magnetic permeability material wide band microstrip antenna and a manufacturing method thereof. The antenna includes a first dielectric substrate, a second dielectric substrate, a U-shaped slot patch antenna, a metal grounding plate and an SMA coaxial connector, wherein the first dielectric substrate is connected with the second dielectric substrate, thefirst dielectric substrate is located above the second dielectric substrate, an air cavity is disposed between the first dielectric substrate and the second dielectric substrate, multiple open resonant rings are disposed on an upper surface of the first dielectric substrate and are periodically arranged, a U-shaped slot patch antenna is disposed on an upper surface of the second dielectric substrate, a lower surface is connected with the metal grounding plate, one end of the SMA coaxial connector is connected with the U-shaped slot patch antenna, and the other end is connected with the metal grounding plate. The antenna is advantaged in that the side feed U-shaped slot patch antenna is combined with the open resonant ring array technology, the meandering band spread technology is combinedwith the theory that negative permeability materials inhibit lateral radiation, and the microstrip patch antenna implementing X-band wideband and high gain functions is achieved.
Description
technical field [0001] The invention belongs to the field of microstrip antennas, and relates to an X-band negative magnetic permeability material broadband microstrip antenna and a manufacturing method thereof. Background technique [0002] At present, the commonly used microstrip antenna is on a thin dielectric substrate, one side is attached with a thin metal layer as a ground plane, and the other side is made of a metal radiation sheet with certain functions by photolithography and corrosion. The probes feed the radiator, which constitutes a microstrip antenna. The microstrip antenna has the characteristics of small size, light weight, low profile, etc., and is easy to form an array, so it has a very broad application prospect, such as using the microstrip antenna for satellite communication, vehicle radar, GPS navigation, remote sensing, etc. Among them, X-band 8-12GHz microstrip antennas are widely used. In space applications, X-band has space research, broadcast sate...
Claims
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IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q13/08H01Q15/24
CPCH01Q1/38H01Q1/48H01Q1/50H01Q13/08H01Q15/24
Inventor 靳钊蔺琛智郭晨贺之莉李楠
Owner CHANGAN UNIV