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Small L-T branch knot double-belt-resistance plane ultra-wide-band antenna

An ultra-wideband antenna, L-T technology, which is applied to antennas, devices that make antennas work in different bands at the same time, structures of radiating elements, etc., can solve problems such as mutual interference, and achieve band rejection and standing wave ratio. Bandwidth effectively widened , the effect of suppressing outward radiation

Inactive Publication Date: 2014-07-23
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the technical problem of mutual interference with WiMax and WLAN communication systems when the UWB system is used simultaneously with IEEE802.11b / g, RFID and other systems in the prior art, and to provide a small L-T stub dual-band stop plane UWB antenna

Method used

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  • Small L-T branch knot double-belt-resistance plane ultra-wide-band antenna
  • Small L-T branch knot double-belt-resistance plane ultra-wide-band antenna
  • Small L-T branch knot double-belt-resistance plane ultra-wide-band antenna

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Embodiment Construction

[0024] In order to further understand the present invention, the preferred embodiments of the present invention will be described below in conjunction with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention rather than limiting the claims of the present invention.

[0025] Such as figure 1 and 2 As shown, the small L-T stub dual-band stop planar ultra-wideband antenna of the present invention includes a dielectric substrate 1 , a feeder 2 , a ground plate 3 and a metal radiation unit 4 . Among them, the feeder 2, the ground plate 3 and the metal radiation unit 4 are set on the upper surface of the dielectric substrate 1, and the feeder 2 and the metal radiation unit 4 are all symmetrical with respect to the central axis of the dielectric substrate 1, and the ground plate 3 is symmetrically arranged on the Both sides of feeder line 2. The feeder 2 is used to receive e...

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Abstract

The invention relates to a small L-T branch knot double-belt-resistance plane ultra-wide-band antenna, and belongs to the technical field of ultra-wide-band wireless communication. The ultra-wide-band antenna comprises a dielectric substrate, a feeder line, an earth plate and a metal radiating unit; the metal radiating unit comprises an analogously-symmetrical-trapezoid unit, T-shaped metal branch knots and L-shaped metal branch knots; the analogously-symmetrical-trapezoid unit is composed of ten rectangular metal sheets which are sequentially connected from top to bottom, the two ends of the long edges of the fifth rectangular metal sheet are connected with the L-shaped metal branch knots respectively, circular through holes are formed in the analogously-symmetrical-trapezoid unit, the T-shaped metal branch knots are arranged in the circular through holes, and the vertical ends of the T-shaped metal branch knots are connected with the ninth rectangular metal sheet. By means of the ultra-wide-band antenna, the relative standing-wave ratio bandwidth ranges from 1.6 Ghz to 14.8 Ghz, the obvious filtering effect is achieved between 3.3 Ghz and 3.7 Ghz and between the 5.0 Ghz and 5.9 Ghz, the mutual interference effect of different wireless communication systems is accordingly restrained, and full-band stable gains and full-band omni-directional radiation are achieved.

Description

technical field [0001] The invention relates to a small L-T branch double-band-resistance planar ultra-wideband antenna, which belongs to the technical field of ultra-wideband wireless communication. Background technique [0002] Ultra-wideband antenna refers to an antenna with a very wide bandwidth, that is, the characteristics of the antenna such as input impedance, efficiency, lobe pointing, lobe width, sidelobe level, direction coefficient, gain, polarization, etc. do not exceed within a very wide range The frequency range to which the given range corresponds. [0003] In the prior art, the frequency band covered by the UWB system is 3.1Ghz-10.6GHz, while WiMax and WLAN communication systems use frequency bands of 3.3Ghz-3.7Ghz and 5.0Ghz-5.9Ghz, and IEEE802.11b / g , RFID and other systems put forward the demand for the use of the 2.4-2.484GHz frequency band, which caused mutual interference between the WiMax and WLAN communication systems and the dual systems when UWB a...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q5/00H01Q5/50
Inventor 汤洋高劲松陈新
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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