A miniaturized three-dimensional multi-frequency microstrip antenna
A microstrip antenna, three-dimensional technology, applied in the direction of antennas, antenna arrays, independent antenna unit combinations, etc., can solve the problems that it is not easy to realize multi-band design, cannot meet the miniaturization requirements, and the antenna gain is reduced.
Active Publication Date: 2020-10-27
HARBIN ENG UNIV
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Problems solved by technology
[0003] In 2013, Y.Li designed a miniaturized dual-band microstrip antenna in the form of impedance loading. However, the capacitive loading form absorbs the radiation energy of the antenna, and the gain of the antenna is greatly reduced, and the antenna adopts a coplanar The form of waveguide feeding makes the size of the antenna extend on the entire plane, and the size of the antenna is still large, which cannot meet the miniaturization requirements
In addition, the dielectric resonant antenna can reduce the design size of the antenna, but it is not easy to realize multi-band design
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[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0021] combine Figure 1 to Figure 4 , the present invention mainly includes a cuboid dielectric substrate 101, a feeding transmission line 102, a first element 103, a second element 104 and a third element 105, the feeding transmission line 102 feeds the three elements along the edge of the cuboid, by adjusting the first The array 103, the second array 104 and the third array 105 can enable the designed antenna to work in single-band, dual-band, triple-band, broadband and other modes. The feeding transmission line 102 of the antenna feeds the three elements along the edges of the cuboid dielectric substrate 101, thereby reducing the cross-sectional height of the antenna; the three elements of the antenna are printed on different surfaces of the cuboid respectively, which can reduce the size of the antenna. Realizing the conformal de...
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The invention provides a miniaturized three-dimensional multi-frequency microstrip antenna, which comprises a rectangular dielectric substrate, wherein the bottom surface of the rectangular dielectricsubstrate is a ground plane; a first element is arranged on the top surface of the rectangular dielectric substrate; a feed transmission line is arranged on one edge, vertical to the bottom surface,of the rectangular dielectric substrate; a second element and a third element are arranged on two side surfaces, adjacent to the edge, of the rectangular dielectric substrate separately; and the feedtransmission line feeds the first element, the second element and the third element at the same time. Through the mode of feeding the three elements through the feed transmission line along the edge of the rectangular dielectric substrate and the three-dimensional design, miniaturization of the antenna and integrated design of the antenna and a system are facilitated.
Description
technical field [0001] The invention relates to an antenna structure, in particular to a miniaturized three-dimensional multi-frequency microstrip antenna. Background technique [0002] In recent years, mobile wireless communication devices are developing toward miniaturization and ultra-thinness, and at the same time, the functions of communication devices are increasing. In order to meet the ever-increasing demands of users, various functions are integrated inside the mobile terminal, causing various modules to occupy a large amount of space, so the space of the antenna is greatly compressed. In addition, the design of the antenna is relatively difficult. As people's requirements on mobile communication devices are getting higher and higher, it is necessary to make the devices work in multiple frequency bands or wider frequency bands, so the difficulty of designing antennas is becoming more and more difficult under the limitation of limited space. In recent years, schola...
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IPC IPC(8): H01Q1/38H01Q1/50H01Q21/30H01Q21/00
CPCH01Q1/38H01Q1/50H01Q21/0006H01Q21/30
Inventor 李迎松王燕燕焦天奇罗生元
Owner HARBIN ENG UNIV