Novel ultra wide band monopole antenna

A monopole antenna and ultra-wideband technology, applied in antenna coupling, resonant antenna, antenna grounding device, etc., can solve problems such as large system capacity

Inactive Publication Date: 2015-06-03
HARBIN FEIYU TECH
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  • Claims
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  • Novel ultra wide band monopole antenna
  • Novel ultra wide band monopole antenna
  • Novel ultra wide band monopole antenna

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Embodiment Construction

[0018] Since the ultra-wideband monopole antenna works in the microwave frequency band, its radiation principle will be analyzed here with the help of microwave transmission line theory. Assume that the radius of the rectangular radiating element of the patch antenna is half wavelength λ / 2, and the thickness of the dielectric substrate is L 3 . In this way, the rectangular radiating unit, the dielectric substrate and the grounding plate can be regarded as a low-impedance microstrip transmission line with a length of λ / 2, and an open circuit is formed at the edge of the radiating unit. And because the thickness of the dielectric substrate is much smaller than the wavelength λ, the component of the electric field along the normal direction of the patch plane basically does not change. In the case of only considering the excitation of the main mode, the electromagnetic wave radiation can basically be considered to be caused by the edge of the open circuit part of the radiation u...

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Abstract

The invention relates to a novel ultra wide band monopole antenna. The novel ultra wide band monopole antenna comprises a patch antenna 1 (comprising a rectangular radiation unit and a feeder line), a medium base plate 2, a 5.75GHz phase step resonator 3, a 8.4GHz phase step resonator 4 and a grounding plate 5, and is characterized in that resonance structures are added on the two sides of the feeder line of the antenna so that a double-stop-band function is realized; the radiation unit of the antenna is in a rectangular patch structure and the grounding plate is partially cut. With the adoption of the antenna, the ultra wide band transmission property (VSWR is less than 2) from 3.1GHz to 10.6GHz is realized, and the two narrow band frequency bands of 5.3-5.9GHz and 8.1-8.8GHz form two stop bands so that the interferences between the two frequency bands are effectively reduced.

Description

technical field [0001] The invention relates to a novel ultra-broadband monopole antenna. A resonant structure is added to both sides of the antenna feeder to realize the double stopband function. The antenna radiation unit is a rectangular patch structure, and the floor is partially cut. The antenna realizes ultra-wideband transmission characteristics (VSWR<2) from 3.1GHz to 10.6GHz, and forms stop bands in two narrowband frequency bands of 5.3-5.9GHz and 8.1-8.8GHz, effectively reducing the interference with the two frequency bands. interference. Background technique [0002] Ultra-wideband communication technology is widely used in the fields of radar, positioning, electronic countermeasures, and secure communication. It has long been regarded as a cutting-edge military technology and closely guarded by various countries. It has not been gradually used by civilians until recent years. The advantages of UWB communication technology system can be summarized as follows: ...

Claims

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Application Information

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IPC IPC(8): H01Q9/30H01Q1/48H01Q1/52
Inventor 刘雷张冰然金佳佳
Owner HARBIN FEIYU TECH
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