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Multi-notch-band ultra-wideband planar antenna

A planar antenna, ultra-wideband technology, applied in the direction of antenna coupling, resonant antenna, antenna grounding switch structure connection, etc., can solve the problem of increasing the complexity of the antenna structure, and achieve the effect of wide influence

Pending Publication Date: 2019-07-05
DONGGUAN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While using multiple resonators will increase the complexity of the antenna structure
This places additional constraints on the antenna design

Method used

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  • Multi-notch-band ultra-wideband planar antenna
  • Multi-notch-band ultra-wideband planar antenna
  • Multi-notch-band ultra-wideband planar antenna

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Embodiment Construction

[0048] In order to describe the technical content, structural features, achieved goals and effects of the present invention in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

[0049] refer to Figure 1a to Figure 1c , the present invention discloses an ultra-wideband planar antenna 100a with multi-notch frequency bands, including an ultra-wideband monopole antenna 10 and a resonant parasitic 20a, and the ultra-wideband monopole antenna 10 includes a radiator 11, a metal ground 12 and The feeder 13 connected to the radiator 11, the resonant parasitic 20a is arranged on the side of the feeder 13 and coupled with the feeder 13, the parasitic resonator 20a has a first part that affects the first notch frequency band and a second part that affects the second notch band and does not affect the second part of the first notch band. Wherein, the first frequency band and the second frequency band are two notch frequency ...

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Abstract

The invention discloses a multi-notch-band ultra-wideband planar antenna. The multi-notch-band ultra-wideband planar antenna comprises an ultra-wideband monopole antenna and a resonance parasitic device. The ultra-wideband monopole antenna comprises a radiator, a metal ground and a feeder line connected with the radiator; the resonance parasitic device is arranged on the side portion of the feederline and is coupled with the feeder line; and the resonance parasitic device is provided with a first portion influencing a first notch band and a second portion influencing a second notch band and not influencing the first notch band. Compared with the prior art, the resonant parasitic device is used to generate two notch frequency bands with adjustable notch frequencies, so that the structure is simple and manufacturing is easy.

Description

technical field [0001] The invention relates to an antenna, in particular to a multi-notch frequency band ultra-wideband planar antenna. Background technique [0002] In the UWB communication system, communication in the frequency range of 3.1 to 10.6 GHz will be considered. So far, various structures have been studied in order to realize ultra-wideband antennas. However, in practical applications, the design of UWB antennas still faces many challenges. One of the challenges is to avoid interference with other existing narrowband services already occupying the UWB band. In recent years, many ultra-wideband antennas have tried to overcome the interference problem by utilizing the band rejection function design. The most popular design methods for antennas with band rejection are embedded slots (C-slots, U-slots, square slots, curved slots), additional rods, U-shaped rods, and slots in radiators or floor planes. However, most designs can only correspond to single notch ban...

Claims

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Application Information

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IPC IPC(8): H01Q1/52H01Q1/38H01Q9/30H01Q1/50
CPCH01Q1/52H01Q1/38H01Q9/30H01Q1/50
Inventor 李家全张光旻纪成光王善进卢贵主梁家军
Owner DONGGUAN UNIV OF TECH
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