CN204243190U

CN204243190U - Double square split ring microstrip antenna

Info

Publication number: CN204243190U
Application number: CN201420778022.6U
Authority: CN
Inventors: 刘娈
Original assignee: China Jiliang University
Current assignee: China Jiliang University
Priority date: 2014-12-11
Filing date: 2014-12-11
Publication date: 2015-04-01
Anticipated expiration: 2024-12-11

Abstract

The utility model discloses a kind of double square split ring microstrip antenna.It comprises substrate, single radial cut large rectangle ring paster, single radial cut annulus paster, the little straight-flanked ring paster of single radial cut; The surface of substrate is provided with single radial cut large rectangle ring paster, single radial cut annulus paster, the little straight-flanked ring paster of single radial cut; The little straight-flanked ring paster of single radial cut is at substrate center position, and the outside of the little straight-flanked ring paster of single radial cut is single radial cut annulus paster, carries out feed at single radial cut annulus paster opening part to antenna, and the outside of single radial cut annulus paster is single radial cut large rectangle ring paster.Have stable radiation characteristic in utility model works frequency band, loss is low, and structure is simple, and volume is little, easy to make.

Description

Double square split ring microstrip antenna

Technical field

The utility model relates to antenna, particularly relates to a kind of double square split ring microstrip antenna.

Background technology

In the engineering systems such as radio communication, radio and television, navigation, in order to realize the transmission of information, the effect of antenna is indispensable.As radiation in communication system or the equipment receiving radio wave, the effect of antenna is that the high-frequency current (or guided wave) sent here by transmitter is transformed to radio wave and is sent to space, the radio wave transmitted in space is converted to the high-frequency current that receiver can transmit, and is a kind of energy conversion device.Antenna achieves the conversion of guided wave and radiated wave.Antenna of a great variety, form is varied, a member in the microstrip antenna Jin Shi antenna numerous member of family.The appearance of microstrip antenna is that usual microstrip antenna is made up of the radiation patch be attached to on the dielectric substrate of metal floor in eighties of last century seventies.Microstrip antenna mainly contains following characteristics: (1) section is low, and volume is little, lightweight, easily conformal; (2) variation of electrical property.The different designs of micro-band unit can make the antenna pattern of antenna change in radiating surface; Be easy to obtain different polarization; (3) easy and active device, circuit etc. integrate.

In technical field of radio, for the transmission of information, the effect of antenna is indispensable.Along with social development and progress, also more and more higher to the requirement of information transmission, therefore the development of antenna is in the ascendant.In many actual design, the plurality of advantages of microstrip antenna makes it be widely used and development.Believe along with the raising to microstrip antenna function understanding, microstrip antenna is bound to obtain being applied more widely in field more widely.Therefore, in the urgent need to working out small size, the micro-strip paster antenna that radiation characteristic is good.

Summary of the invention

The utility model provides a kind of adjustable multi-frequency slot antenna, and technical scheme is as follows:

Double square split ring microstrip antenna comprises substrate, single radial cut large rectangle ring paster, single radial cut annulus paster, the little straight-flanked ring paster of single radial cut; The surface of substrate is provided with single radial cut large rectangle ring paster, single radial cut annulus paster, the little straight-flanked ring paster of single radial cut; The little straight-flanked ring paster of single radial cut is at substrate center position, and the outside of the little straight-flanked ring paster of single radial cut is single radial cut annulus paster, carries out feed at single radial cut annulus paster opening part to antenna, and the outside of single radial cut annulus paster is single radial cut large rectangle ring paster.

Described substrate is glass-epoxy material, and length and the width of substrate are 63mm ~ 65mm.Described single radial cut large rectangle ring paster, single radial cut annulus paster is identical with the patch width of single radial cut little straight-flanked ring paster, is 0.5mm ~ 1.5mm.Total length and the overall width of described single radial cut large rectangle ring paster are 51mm ~ 53mm, and aperture position is in middle, straight-flanked ring upper end, and A/F is 3mm ~ 4mm.The outer radius of described single radial cut annulus paster is 21mm ~ 23mm, and aperture position is bottom annulus, and A/F is 2mm ~ 3mm.Total length and the overall width of the little straight-flanked ring paster of described single radial cut are 20mm ~ 21mm, and aperture position is in middle, straight-flanked ring upper end, and A/F is 2mm ~ 3mm.

Have stable radiation characteristic in utility model works frequency band, loss is low, and structure is simple, and volume is little, easy to make.

Accompanying drawing illustrates:

Fig. 1 is the structural front view of double square split ring microstrip antenna;

Fig. 2 is the return loss plot figure of double square split ring microstrip antenna;

Fig. 3 is the E face of antenna when 3.31GHz, H surface radiation directional diagram;

Fig. 4 is the surface current density distribution map of antenna when 3.31GHz.

Embodiment

As shown in Figure 1, double square split ring microstrip antenna comprises substrate 1, single radial cut large rectangle ring paster 2, single radial cut annulus paster 3, the little straight-flanked ring paster 4 of single radial cut; The surface of substrate 1 is provided with single radial cut large rectangle ring paster 2, single radial cut annulus paster 3, the little straight-flanked ring paster 4 of single radial cut; The little straight-flanked ring paster 4 of single radial cut is at substrate center position 1, the outside of the little straight-flanked ring paster 4 of single radial cut is single radial cut annulus pasters 3, carry out feed at single radial cut annulus paster 3 opening part to antenna, the outside of single radial cut annulus paster 3 is single radial cut large rectangle ring pasters 2.

Described substrate 1 is glass-epoxy material, and length and the width of substrate 1 are 63mm ~ 65mm.Described single radial cut large rectangle ring paster 2, single radial cut annulus paster 3 is identical with the patch width of single radial cut little straight-flanked ring paster 4, is 0.5mm ~ 1.5mm.Total length and the overall width of described single radial cut large rectangle ring paster 2 are 51mm ~ 53mm, and aperture position is in middle, straight-flanked ring upper end, and A/F is 3mm ~ 4mm.The outer radius of described single radial cut annulus paster 3 is 21mm ~ 23mm, and aperture position is bottom annulus, and A/F is 2mm ~ 3mm.Total length and the overall width of the little straight-flanked ring paster 4 of described single radial cut are 20mm ~ 21mm, and aperture position is in middle, straight-flanked ring upper end, and A/F is 2mm ~ 3mm.

Embodiment 1

Double square split ring microstrip antenna:

Select dielectric constant be 4.4 glass-epoxy material make micro-belt substrate, thickness is 1.6mm.The width of paster ring is 1mm.Length and the width of substrate are 64mm.Total length and the overall width of single radial cut large rectangle ring paster are 52mm, and aperture position is in middle, straight-flanked ring upper end, and A/F is 4mm.The outer radius of single radial cut annulus paster is 22mm, and aperture position is bottom annulus, and A/F is 2mm.Total length and the overall width of the little straight-flanked ring paster of single radial cut are 20mm, and aperture position is in middle, straight-flanked ring upper end, and Opening length is 2mm.The property indices of double square split ring microstrip antenna adopts CST software to test, and the return loss plot of gained is as accompanying drawing 2, and as seen from the figure, the working frequency range of below-10dB is 3.25GHz ~ 3.45GHz.Figure 3 shows that the E face of double square split ring microstrip antenna when 3.31GHz and H face directional diagram, as seen from the figure, when frequency is 3.31GHz, gain is 2.0dBi, and half power lobe width is 138.1 °.Fig. 4 is the surface current density distribution map of antenna when 3.31GHz.

Claims

1. a double square split ring microstrip antenna, is characterized in that comprising substrate (1), single radial cut large rectangle ring paster (2), single radial cut annulus paster (3), the little straight-flanked ring paster (4) of single radial cut; The surface of substrate (1) is provided with single radial cut large rectangle ring paster (2), single radial cut annulus paster (3), the little straight-flanked ring paster (4) of single radial cut; The little straight-flanked ring paster (4) of single radial cut is in substrate center position (1), the outside of the little straight-flanked ring paster (4) of single radial cut is single radial cut annulus paster (3), carry out feed at single radial cut annulus paster (3) opening part to antenna, the outside of single radial cut annulus paster (3) is single radial cut large rectangle ring paster (2).

2. a kind of double square split ring microstrip antenna as claimed in claim 1, it is characterized in that described substrate (1) is glass-epoxy material, length and the width of substrate (1) are 63mm ~ 65mm.

3. a kind of double square split ring microstrip antenna as claimed in claim 1, it is characterized in that described single radial cut large rectangle ring paster (2), single radial cut annulus paster (3) is identical with the patch width of single radial cut little straight-flanked ring paster (4), is 0.5mm ~ 1.5mm.

4. a kind of double square split ring microstrip antenna as claimed in claim 1, it is characterized in that total length and the overall width of described single radial cut large rectangle ring paster (2) are 51mm ~ 53mm, aperture position is in middle, straight-flanked ring upper end, and A/F is 3mm ~ 4mm.

5. a kind of double square split ring microstrip antenna as claimed in claim 1, it is characterized in that the outer radius of described single radial cut annulus paster (3) is 21mm ~ 23mm, aperture position is bottom annulus, and A/F is 2mm ~ 3mm.

6. a kind of double square split ring microstrip antenna as claimed in claim 1, it is characterized in that total length and the overall width of the little straight-flanked ring paster (4) of described single radial cut are 20mm ~ 21mm, aperture position is in middle, straight-flanked ring upper end, and A/F is 2mm ~ 3mm.