Miniaturized monopole antenna
A monopole antenna and coaxial line technology, applied in the field of antennas, can solve the problem of excessive monopole size, etc., and achieve the effect of simple structure, high gain, and simple assembly process
Pending Publication Date: 2019-06-14
GUANGDONG UNIV OF TECH
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Problems solved by technology
[0012] The purpose of the present invention is to provide a miniaturized monopole antenna for short-distance and radio communication, which successfully solves the problem of excessive monopole size, and at the same time has superior working performance, high radiation efficiency, high gain, and simple structure , easy to process
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Embodiment 1
[0045] In this embodiment, the operating principle and performance of the present invention will be described in detail with the working frequency of the monopole antenna being 460 MHz, the vacuum wavelength being 652 mm, and the half wavelength being 326 mm.
[0046] like Figure 5 , Image 6 As shown, a miniaturized monopole antenna includes a monopole antenna radiator 3, and the miniaturized monopole antenna is externally connected to a coaxial line feed port, and the coaxial line feed port includes an inner conductor 7 , outer conductor 6; also includes 8 capacitance columns 2, metal sheet 8 connected with 8 capacitance columns, coupling feed capacitor 4, metal ground plane plate 5, coaxial line feed port; described coupling feed capacitor 4 is a cylindrical structure, the metal ground plane plate 5 is a circular structure, and the monopole antenna radiator 3 is a cylindrical structure.
[0047] The coupling feeding capacitor described in this embodiment includes a diele...
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The invention discloses a miniaturized monopole antenna. The miniaturized monopole antenna comprises a monopole antenna radiator, a plurality of capacitance columns, a metal sheet, a coupling feed capacitor, and a metal grounding plane plate; the miniaturized monopole antenna is externally connected with a coaxial line feed port, the coaxial line feed port comprises an inner conductor and an outerconductor; a through hole is formed at the center of the coupling feed capacitor, and the through hole is formed at the center of the metal grounding plane plate; the coupling feed capacitor is arranged on the center of the metal grounding plane plate, the monopole antenna radiator is arranged at the center of the coupling feed capacitor; the plurality of capacitance columns are arranged on the metal grounding plane plate; and the metal sheet is connected with the plurality of capacitance columns and connected with the monopole antenna radiator; the outer conductor is connected with the bottom of the metal grounding plane plate, the inner conductor is connected with the bottom of the monopole antenna radiator from the metal grounding plane plate after penetrating the through hole of the metal grounding plane plate and the through hole of the feed coupling capacitor.
Description
technical field [0001] The present invention relates to the technical field of antennas, and more specifically, to a miniaturized monopole antenna. Background technique [0002] In the ever-growing mobile communication network, the application of jump-spread spectrum technology in modern secure communication and the rapid development of mobile communication have increased the demand for miniaturized antennas with omnidirectional radiation. Monopole antennas are among the social needs. The next came into being. The monopole antenna is an antenna with omnidirectional radiation characteristics. It is composed of a metal with good conductivity. It is usually fed by a coaxial line. The inner conductor of the coaxial line is connected to one end of the monopole antenna conductor. The outer conductor of the axis is connected to the grounded metal plate. The monopole antenna has a simple structure and occupies a leading position in the antenna types with omnidirectional radiation....
Claims
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IPC IPC(8): H01Q1/36H01Q1/48H01Q1/50
Inventor 张亮贤林福民
Owner GUANGDONG UNIV OF TECH