CN106329083A

CN106329083A - Compact microstrip antenna

Info

Publication number: CN106329083A
Application number: CN201510329874.6A
Authority: CN
Inventors: 徐再; 徐靖
Original assignee: Zhangjiagang Mao An Trade Co Ltd
Current assignee: Zhangjiagang Mao An Trade Co Ltd
Priority date: 2015-06-15
Filing date: 2015-06-15
Publication date: 2017-01-11

Abstract

The invention discloses a compact microstrip antenna, which comprises a dielectric layer, and a radiation patch and a grounding part formed on the upper surface and the lower surface of the dielectric layer, wherein gaps are opened in the radiation patch; and the gaps comprise a cross-shaped first gap, and four cross-shaped second gaps symmetrically distributed around the first gap. Through opening five cross-shaped gaps in the radiation path, the resonant frequency of the antenna can be effectively reduced, the size of the microstrip antenna is reduced, and certain gains are also ensured.

Description

A kind of small-sized microstrip antenna

Technical field

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

Background technology

Microstrip antenna has that volume is little, section is low, low cost and advantages of simple structure and simple, obtains in recent years The extensive concern of industry.Along with the progress of technology, microstrip antenna is including multiple necks such as WLAN Territory is applied, although these antenna has the performance of excellence, but is all based on end fed and realizes, Need to introduce balun element to interconnect with rear end difference type chip, the most both can increase loss and take face Long-pending, also can increase the complexity of design.

Summary of the invention

It is an object of the invention to provide a kind of small-sized microstrip antenna, to overcome deficiency of the prior art.

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

The embodiment of the present application discloses a kind of small-sized microstrip antenna, including dielectric layer and be formed at described The radiation patch of dielectric layer upper and lower surface and grounding parts, described radiation patch offers gap, this gap Including criss-cross first gap and to be symmetrically distributed in four of described first gap surrounding criss-cross Second gap.

Preferably, in above-mentioned small-sized microstrip antenna, described radiation patch is square.

Preferably, in above-mentioned small-sized microstrip antenna, described first gap is positioned at described radiation patch Center.

Preferably, in above-mentioned small-sized microstrip antenna, four described criss-cross second seam shapes With equivalently-sized.

Preferably, in above-mentioned small-sized microstrip antenna, the length and width on the long limit in described first gap Being respectively less than the long limit in described second gap, the length and width of the minor face in described first gap is respectively less than described The minor face in the second gap.

Preferably, in above-mentioned small-sized microstrip antenna, the long limit in described four criss-cross second gaps Surround the square of a non-closed.

Preferably, in above-mentioned small-sized microstrip antenna, the distributing point of described microstrip antenna is positioned at described Between one gap and the second gap.

Preferably, in above-mentioned small-sized microstrip antenna, the material of described dielectric layer is politef.

Compared with prior art, it is an advantage of the current invention that: the present invention is by offering 5 in radiation patch Individual criss-cross gap, it is possible to be effectively reduced the resonant frequency of antenna, the size of this microstrip antenna is not only Reduce, also assures that certain gain simultaneously.

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 structural representation of the microstrip antenna of specific embodiment of the invention miniaturization.

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, small-sized microstrip antenna includes dielectric layer 1 and is formed at dielectric layer upper and lower surface Radiation patch 2 and grounding parts, radiation patch 2 offers gap, and this gap includes criss-cross first Gap 21 and be symmetrically distributed in four criss-cross second gaps 22 of the first gap surrounding.

Further, radiation patch is square.

Further, the first gap is positioned at the center of radiation patch.

Further, four criss-cross second seam shapes and equivalently-sized.

Further, the length and width on the long limit in the first gap is respectively less than the long limit in the second gap, and first The length and width of the minor face in gap is respectively less than the minor face in the second gap.

Further, the long skirt in four criss-cross second gaps becomes the square of a non-closed.

Further, the distributing point of microstrip antenna is between the first gap and the second gap.

Further, the material of dielectric layer is politef.

The present invention is by offering 5 criss-cross gaps in radiation patch, it is possible to be effectively reduced antenna Resonant frequency, the size of this microstrip antenna not only reduces, and also assures that certain gain simultaneously.

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-sized microstrip antenna, it is characterised in that include dielectric layer and be formed at described medium The radiation patch of layer upper and lower surface and grounding parts, described radiation patch offers gap, and this gap includes Criss-cross first gap and be symmetrically distributed in four criss-cross second of described first gap surrounding Gap.

Small-sized microstrip antenna the most according to claim 1, it is characterised in that: described radiation patch is Square.

Small-sized microstrip antenna the most according to claim 2, it is characterised in that: described first position, gap Center in described radiation patch.

Small-sized microstrip antenna the most according to claim 1, it is characterised in that: four described crosses Second seam shape of shape and equivalently-sized.

Small-sized microstrip antenna the most according to claim 1, it is characterised in that: described first gap The length and width on long limit is respectively less than the long limit in described second gap, the length of the minor face in described first gap With the minor face that width is respectively less than described second gap.

Small-sized microstrip antenna the most according to claim 1, it is characterised in that: described four crosss The long skirt in the second gap become the square of a non-closed.

Small-sized microstrip antenna the most according to claim 1, it is characterised in that: described microstrip antenna Distributing point is between described first gap and the second gap.

Small-sized microstrip antenna the most according to claim 1, it is characterised in that: the material of described dielectric layer Matter is politef.