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Ultra-wideband planar monopole antenna

A monopole antenna, ultra-wideband technology, applied in the direction of resonant antenna, antenna grounding device, antenna grounding switch structure connection, etc., can solve the problems of monitoring antenna miniaturization, wide frequency band, lack of high gain, etc., to reduce the minimum operating frequency , reduced size, easy integration effect

Active Publication Date: 2018-06-15
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0004] Purpose of the invention: Aiming at the above-mentioned prior art, an ultra-wideband planar monopole antenna is proposed to solve the problems of existing monitoring antennas in terms of miniaturization, broadband, and high gain

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Embodiment Construction

[0028] The present invention will be further explained below in conjunction with the accompanying drawings.

[0029] Such as figure 1 As shown, an ultra-wideband planar monopole antenna includes: a dielectric substrate 5 , a monopole radiation patch and a lumped device arranged on the surface of the dielectric substrate 5 , and a ground plate 7 arranged at one end of the dielectric substrate 5 .

[0030] The dielectric substrate 5 is a Rogers RT5880 dielectric board with a dielectric constant of 2.2, with a width of 12 cm and a height of 35 cm. The dielectric substrate 5 and the ground plate 7 are fixed by an L-shaped stand piece 8 . The monopole radiating patch is a copper-clad structure on one side of the dielectric substrate, with an overall height of 34 cm and a width of 12 cm, including the monopole antenna main body 6 and the antenna top loading. Wherein, the main body 6 of the monopole antenna is composed of three sections of copper-clad patches with triangular cut co...

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Abstract

The invention discloses an ultra-wideband planar monopole antenna. The ultra-wideband planar monopole antenna comprises a dielectric substrate, a monopole radiation patch, a lumped device and a grounding plate, wherein the monopole radiation patch is formed by loading a monopole antenna main body and a top end, a part, near to the grounding plate, of the monopole radiation patch employs a triangular corner and is mainly used for impedance matching of a high-frequency part. A lumped component loaded by the antenna main body is mainly used for reducing a working frequency band of the antenna andgain of a smooth antenna in the whole frequency band, a plurality of rectangular open-circuit branches are loaded at a top end of a monopole, the capacitance between the antenna and floor is improved, and the working frequency band of the antenna is further reduced. By loading the lumped component and additionally arranging open-circuit branches on ground, the antenna size is effectively reducedas well as favorable ultra-wideband characteristic is maintained, and the application of the antenna in the monitoring field is facilitated.

Description

technical field [0001] The invention belongs to the technical field of antennas, in particular to an ultra-wideband (UWB) antenna. Background technique [0002] With the rapid development of radio technology, the demand for radio frequency resources is increasing, and radio monitoring and management are facing more challenges. As an important part of radio monitoring, the monitoring system puts forward higher and higher requirements for the wide frequency band and high gain of the front-end monitoring antenna. At the same time, with the continuous development of low-altitude electronic equipment, such as low-altitude flying drone technology, handheld monitoring equipment is facing greater market demand. Traditional monitoring antennas can no longer meet the needs of the application. Therefore, it is particularly urgent to design a monitoring antenna with wider frequency band, higher gain, smaller size and longer monitoring distance. At present, the antenna forms used in m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/50H01Q9/40
CPCH01Q1/38H01Q1/48H01Q1/50H01Q9/40
Inventor 邢蕾赵永久范琳琳
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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