CN106329144A

CN106329144A - Small-sized multi-frequency microstrip antenna

Info

Publication number: CN106329144A
Application number: CN201510337434.5A
Authority: CN
Inventors: 徐凯
Original assignee: Zhangjiagang Huazheng Import And Export Trading Co Ltd
Current assignee: Zhangjiagang Huazheng Import And Export Trading Co Ltd
Priority date: 2015-06-17
Filing date: 2015-06-17
Publication date: 2017-01-11

Abstract

The invention discloses a small-sized multi-frequency microstrip antenna, which comprises a dielectric plate, a radiation patch formed on one surface of the dielectric plate, a grounding portion formed on the other surface of the dielectric plate, and a coaxial probe connected between the radiation patch and the grounding portion, wherein gaps are formed in the radiation patch, the gaps include a first gap and a second gap which are symmetrically distributed in the radiation patch, the first gap comprises a rectangular third gap with a first width and a rectangular fourth gap with a second width, and the first width is greater than the second width. According to the small-sized multi-frequency microstrip antenna, the step-shaped gaps are symmetrically distributed in the radiation patch, thus the antenna can have dual-frequency feature, and a ratio of high frequency to low frequency of the antenna can be changed by adjusting a ratio of the first with to the second width.

Description

A kind of small multi-frequency microstrip antenna

Technical field

The application belongs to wireless communication technology field, particularly relates to a kind of small multi-frequency microstrip antenna.

Background technology

Wireless domain is worked out for the different market demands and application model has different standards, as being applied to IEEE 802.16 standard of WLAN, also known as micro-wave access global inter communication (World Interoperability for MicrowaveAccess, WiMAX).Wherein, the shifting in IEEE 802.16e Dynamic WiMAX includes 2.3GHz and 2.7GHz frequency range.

In recent years, wireless communication system is more and more higher to the requirement of antenna, have thin profile, volume little, The microstrip antenna of the advantages such as quality is little, easy of integration has obtained studying widely and applying.Meanwhile, modern nothing Line communication system often requiring that, multiple working frequency range coexists, and works in the channel radio of double frequency or multiband Communication system is an important directions of development at present.

Summary of the invention

It is an object of the invention to provide a kind of small multi-frequency microstrip antenna, with overcome of the prior art not Foot.

For achieving the above object, the present invention provides following technical scheme:

The embodiment of the present application discloses a kind of small multi-frequency microstrip antenna, including dielectric-slab, be formed at described The radiation patch on dielectric-slab one surface, the grounding parts being formed at described another surface of dielectric-slab and connection Coaxial probe between described radiation patch and grounding parts, described radiation patch offers gap, should Gap includes the first gap and the second gap being symmetrically distributed in described radiation patch, described first gap Including have the first width rectangle the 3rd gap and have the second width rectangle the 4th gap, institute State the first width more than described second width.

Preferably, in above-mentioned small multi-frequency microstrip antenna, described first gap is parallel with the second gap.

Preferably, in above-mentioned small multi-frequency microstrip antenna, described coaxial probe is positioned at described first seam Between gap and the second gap.

Preferably, in above-mentioned small multi-frequency microstrip antenna, the material of described dielectric-slab is polytetrafluoroethyl-ne Alkene.

Compared with prior art, it is an advantage of the current invention that: present invention symmetry in radiation patch offers Step-like gap, so that antenna has dual frequency characteristics, by regulating the first width and the second width Ratio, thus it is possible to vary the ratio between antenna high and low frequency.

Accompanying drawing explanation

In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to reality Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below, Accompanying drawing in description is only some embodiments described in the application, for those of ordinary skill in the art From the point of view of, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 show the top view of the middle-size and small-size multifrequency microstrip antenna of the specific embodiment of the invention；

Fig. 2 show the side view of the middle-size and small-size multifrequency microstrip antenna of the specific embodiment of the invention.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out Detailed description, it is clear that described embodiment is only a part of embodiment of the present invention rather than complete The embodiment in portion.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creation Property work on the premise of the every other embodiment that obtained, broadly fall into the scope of protection of the invention.

Shown in ginseng Fig. 1 and Fig. 2, small multi-frequency microstrip antenna, including dielectric-slab 1, it is formed at dielectric-slab one The radiation patch 2 on surface, it is formed at the grounding parts 3 on another surface of dielectric-slab and is connected to radiation patch And the coaxial probe 4 between grounding parts, radiation patch offers gap 5, this gap includes symmetrical The first gap 51 and the second gap 52 in radiation patch, the first gap includes the square with the first width 3rd gap 53 of shape and have the second width rectangle the 4th gap 54, the first width is wide more than second Degree.

Further, the first gap is parallel with the second gap.

Further, coaxial probe is between the first gap and the second gap.

Further, the material of dielectric-slab is politef.

Present invention symmetry in radiation patch offers step-like gap, so that antenna has double frequency Characteristic, by regulating the first width and the ratio of the second width, thus it is possible to vary between antenna high and low frequency Ratio.

It should be noted that in this article, the relational terms of such as first and second or the like is used merely to One entity or operation are separated with another entity or operating space, and not necessarily requires or imply Relation or the order of any this reality is there is between these entities or operation.And, term " includes ", " comprise " or its any other variant is intended to comprising of nonexcludability, so that include that one is The process of row key element, method, article or equipment not only include those key elements, but also include the brightest Other key elements really listed, or also include intrinsic for this process, method, article or equipment Key element.In the case of there is no more restriction, statement " including ... " key element limited, It is not precluded from there is also in including the process of described key element, method, article or equipment other identical Key element.

The above is only the detailed description of the invention of the application, it is noted that general for the art For logical technical staff, on the premise of without departing from the application principle, it is also possible to make some improvement and profit Decorations, these improvements and modifications also should be regarded as the protection domain of the application.

Claims

1. a small multi-frequency microstrip antenna, it is characterised in that include dielectric-slab, be formed at described medium The radiation patch on plate one surface, it is formed at the grounding parts on described another surface of dielectric-slab and is connected to institute State the coaxial probe between radiation patch and grounding parts, described radiation patch offers gap, this gap Including the first gap being symmetrically distributed in described radiation patch and the second gap, described first gap includes Have the rectangle of the first width the 3rd gap and have the second width rectangle the 4th gap, described the One width is more than described second width.

Small multi-frequency microstrip antenna the most according to claim 1, it is characterised in that: described first seam Gap is parallel with the second gap.

Small multi-frequency microstrip antenna the most according to claim 1, it is characterised in that: described coaxial spy Pin is between described first gap and the second gap.

Small multi-frequency microstrip antenna the most according to claim 1, it is characterised in that: described dielectric-slab Material be politef.