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Zero-order resonant antenna and wireless router

A zero-order resonant antenna and transmission line technology, which is applied to antennas, antenna parts, antenna grounding devices, etc., can solve the problems of narrow antenna bandwidth, inability to planarize, and low radiation efficiency, so as to reduce antenna area and improve efficiency. The effect of improving antenna efficiency and bandwidth

Active Publication Date: 2017-05-10
N RADIO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a zero-order resonant antenna and a wireless router, aiming to solve the problems of narrow bandwidth, low radiation efficiency, high profile and inability to planarize the antenna in the prior art

Method used

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  • Zero-order resonant antenna and wireless router
  • Zero-order resonant antenna and wireless router
  • Zero-order resonant antenna and wireless router

Examples

Experimental program
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Effect test

Embodiment 1

[0023] see Figure 1 to Figure 4 The zero-order resonant antenna provided by Embodiment 1 of the present invention includes a substrate 61, a composite left-handed transmission line unit 62 attached to the front surface of the substrate 61, an electromagnetic field bandgap (Electromagnetic Band Gap, EBG) structure 63 attached to the bottom surface of the substrate 61, and a The metal plate 64 on the side of the EBG structure 63 and connected to the composite left and right hand transmission line unit 62 serves as a ground. Since the composite left-hand transmission line unit 62 is directly connected to the metal plate 64, and the current is introduced into the ground, the EBG structure 63 will not cause electromagnetic field distribution between the composite left-hand transmission line unit 62 and the metal plate 64 between the composite left-hand transmission line unit 62 and the ground. changes, and can eliminate surface waves.

[0024] In Embodiment 1 of the present inven...

Embodiment 2

[0030] see Figure 5 The difference between the zero-order resonant antenna provided by the second embodiment of the present invention and the zero-order resonant antenna provided by the first embodiment of the present invention is that an EBG structure 66 is attached to the front of the substrate, and the EBG structure 66 is located around the composite left-handed transmission line unit 65. The EBG structure reaches two layers, so that the bandwidth of the EBG structure can be widened.

Embodiment 3

[0032] see Image 6 The wireless router provided by the third embodiment of the present invention includes two zero-order resonant antennas provided by the first or second embodiment of the present invention, and the two zero-order resonant antennas provided by the first or second embodiment of the present invention share a metal plate 64 as the ground of the antenna. .

[0033] In the embodiment of the present invention, since the zero-order resonant antenna includes a composite left-handed transmission line unit attached to the front surface of the substrate, an EBG structure attached to the bottom surface of the substrate, and a metal ground on the side of the EBG structure connected to the composite left-handed transmission line unit Therefore, the EBG structure can eliminate the surface wave between the composite left-handed transmission line unit and the ground, thereby improving the efficiency of the antenna and increasing the bandwidth of the antenna; in addition, sinc...

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Abstract

The invention provides a zero-order resonant antenna and a wireless router suitable for the communication field. The zero-order resonant antenna comprises a substrate, a left and right hand composite transmission line unit attached to the front side of the substrate, an electromagnetic band gap (EBG) structure attached to the bottom of the substrate, and a metal flat plate positioned at one side of the EBG structure, connected with the left and right hand composite transmission line unit and used as the ground. The zero-order resonant antenna of low profile, horizontal omnibearing radiation, high efficiency and large bandwidth and polarized vertical to the horizontal plane is realized.

Description

technical field [0001] The invention belongs to the communication field, and in particular relates to a zero-order resonant antenna and a wireless router. Background technique [0002] The existing technology mainly uses dipole or monopole antenna to provide horizontal omnidirectional and vertically polarized radiation performance. Dipole or monopole antenna is an antenna whose electrical length is 1 / 2 or 1 / 4 of the wavelength The radiation of the antenna is omnidirectional on the horizontal plane, and the polarization direction of the radiated electric field is perpendicular to the earth, that is, vertical polarization. When this type of antenna is used, it is generally placed outside the wireless router perpendicular to the horizontal plane. However, the antenna's narrow bandwidth, low radiation efficiency, high profile, and inability to planarize limit its commercial application. Contents of the invention [0003] The object of the present invention is to provide a zer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/38H01Q1/48H01Q1/22H04L12/771H04L45/60
CPCH01Q1/2291H01Q1/38H01Q1/48H04L45/60Y02D30/70
Inventor 苏华峰张利鹏陈开宏王照何丽娥
Owner N RADIO TECH CO LTD
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