CN101826650A - Dual-frequency dual-polarized printing antenna - Google Patents
Dual-frequency dual-polarized printing antenna Download PDFInfo
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- CN101826650A CN101826650A CN201010163322A CN201010163322A CN101826650A CN 101826650 A CN101826650 A CN 101826650A CN 201010163322 A CN201010163322 A CN 201010163322A CN 201010163322 A CN201010163322 A CN 201010163322A CN 101826650 A CN101826650 A CN 101826650A
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- dual
- feed structure
- dielectric plate
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- antenna
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Abstract
The invention discloses a dual-frequency dual-polarized printing antenna. The antenna comprises a medium board, a radiation unit, a feed structure and an earthing board, wherein the disc-shaped medium is divided into an upper medium board and a lower medium board; the radiation unit is printed on the upper surface of the upper medium board; the feed structure is printed on the upper surface of the lower medium board; the feed structure is integrated by a disc loaded probe coupled feed structure in the center of the medium board and a microstrip line coupled feed structure along the radius direction; and the earthing board is printed on the lower surface of the lower medium board. The antenna is easy for wearing, can be integrated with other portable equipment, and does not have the problems of buckling, shrinkage, wrinkle and the like.
Description
Technical field
The present invention relates to a kind of printed antenna, the particularly a kind of human body communication that is operated in industry, science and medical frequency range Worn type antenna.
Background technology
At present, the wearing of human body communication/wearing type antenna has been seen in report abroad, its structure roughly has two classes: a class is the conductive fabric antenna that adopts conventional printed antenna form to make, there is problems such as easily bending, easily shrink, crease easily in this class antenna, and is also higher for the requirement of manufacturing materials and technology; Another kind of is the conventional hard antenna of distortion, makes accessory such as button, waistband etc. on antenna and the clothing conformal, makes the part of clothing, and this antenna is can't the plane integrated and need machining.On the other hand, be seen in the wearing of report/Worn type antenna or the communication or be used for body surface communication of being used for exsomatizing, this antenna can only one-segment, single polarization work.
Summary of the invention
Goal of the invention: the objective of the invention is to overcome deficiency of the prior art, provide a kind of and do not bend, shrink-proof, wrinkle resistant, can the integrated two-band dual polarization Worn type printed antenna in plane.
Technical scheme: dual-frequency dual-polarized printing antenna of the present invention, comprise dielectric-slab, radiating element, feed structure and ground plate, described dielectric-slab is a disc, is divided into top dielectric plate and layer dielectric plate; Described radiating element is printed on the upper surface of described top dielectric plate; Described feed structure is printed on the upper surface of described layer dielectric plate; Described feed structure loads probe coupling feed structure and integrated along the microstrip line coupling feed structure of radial direction by the disk that is positioned at described dielectric-slab center; Described ground plate is printed on the lower surface of described layer dielectric plate.
Described disk loads probe coupling feed structure and is made of rosette and metal probe, described rosette is concentric with described layer dielectric plate, one end of described metal probe links to each other with described rosette, and the other end runs through described layer dielectric plate and described ground plate, external coaxial feeder.This feeder line structure is the port 2 of feed structure;
Described microstrip line coupling feed structure along radial direction is that etching has the bandreject filtering structure on the described metal band, external microstrip feed line along the metal band of the radial direction extension of described layer dielectric plate.This feeder line structure is the port one of feed structure.
Described radiating element is the circular metal paster, has the slit along the radial direction of described metal patch, and described slit quantity can be used two or many according to actual needs.The radius of described circular metal paster can be by formula R
2=3.832c/ (2 π f
R2ε
r 1/2) the approximate calculation, wherein c is the light velocity, ε
rBe the relative dielectric constant of dielectric-slab, f
R2Represent second higher resonance frequency, corresponding feed port 2.Behind the radius of determining the circular metal paster, first resonance frequency that frequency is lower can be by formula f
R1=1.841c/ (2 π R
2ε
r 1/2) the approximate calculation, can optimize along paster slit quantity, length and angle radially, and then regulate resonance frequency f
R1Requirement with impedance frequency bandwidth application band of broadening port one to satisfy.Bandreject filtering structure on the described microstrip feed line is made of 1/4 wavelength high impedance line, stops f
R2The signal entry port 1 of frequency range.The selection of the concentric discs radius that described tips of probes connects should make the imaginary part of the input impedance of port 2 approach 0.
Beneficial effect: the present invention compared with prior art, its beneficial effect is: (1) product of the present invention is easy to wear use, can be integrated with other portable sets, do not have bending, shrink, problem such as wrinkling; (2) product of the present invention becomes one the communication antenna of two kinds of one-segment, single polarization without interfering with each other, has double frequency, dual polarization function; Adopt the microband printing technology, be beneficial to batch process, reduce cost; (3) product of the present invention can be applicable to body surface and the stripped communication link in the human body communication simultaneously, and during the port one feed, antenna resonance is in the lower f of frequency
R1, on circular patch, evoke TM
11Mould, polarization of ele are parallel to antenna surface and the greatest irradiation direction deviates from antenna surface, is fit to far away than the stripped communication and the communication distance of low-frequency range; During port 2 feeds, antenna resonance is in the higher f of frequency
R2, evoke TM on the circular patch
01The greatest irradiation direction is parallel to antenna surface perpendicular to antenna surface for mould, polarization of ele, is applicable to that the body surface communication and the communication distance of higher frequency band is nearer; (4) the present invention has improved the isolation of two feed port effectively by etching high impedance structures on microstrip feed line, helps to improve the performance of communication system; (5) the present invention implements the disk loading to probe feed, is that the antenna port impedance coupling has been introduced new design freedom by regulating the radius that loads disk; (6) product of the present invention has function expansibility preferably, also can realize multiband, broadband, circular polarization, functions such as multipolarization by length, quantity and the relative position of suitable selection radial gap; (7) product of the present invention has good versatility, can be applicable to WLAN (wireless local area network), wireless home network, fields such as satellite navigation and location system, vehicle communication system.
Description of drawings
Fig. 1 is the structural representation of embodiment of the invention product;
Fig. 2 is RL return loss and the isolation frequency response simulation curve of antenna in 2.40GHz and 5.80GHz frequency range;
Fig. 3 is when frequency is 2.40GHz, near the actual measurement directional pattern of antenna free space and human body;
Fig. 4 is when frequency is 5.80GHz, near the actual measurement directional pattern of antenna free space and human body;
Fig. 5 is in the 2.40GHz frequency range, near the actual measurement gain frequency response curve of antenna free space and human body;
Fig. 6 is in the 5.80GHz frequency range, near the actual measurement gain frequency response curve of antenna free space and human body.
Embodiment
Below in conjunction with accompanying drawing, most preferred embodiment is elaborated, but protection scope of the present invention is not limited to described embodiment.
Embodiment: the human body communication dual-frequency dual-polarized printing antenna that works in 2.40GHz and 5.80GHz frequency range simultaneously.As shown in Figure 1, its radiating element 2 and feed structure 3 are printed on respectively on the circular dielectric-slab 1 of polytetrafluoroethylene of two-layer equal thickness, and the radius of this dieelctric sheet is R
1, thickness is h=1.6mm, relative dielectric constant ε
r=4.4, loss tangent value tan σ=0.02; Radiating element 2 is a circular patch; The feed structure 3 of this antenna adopts the two-port feed, and wherein port one is the microstrip line coupling feed structure 32 along radial direction, is used to encourage the TM of circular patch
11Mould makes it work in the 2.40GHz frequency range, and port 2 is used to encourage the TM of circular patch for the probe coupling feed structure 31 that disk loads
01Mould makes it work in the 5.80GHz frequency range; Round metal grounding plate 4 is printed on the lower surface of layer dielectric plate 12; Described disk loads probe coupling feed structure 31 and is made of rosette and metal probe, described rosette is concentric with layer dielectric plate 12, one end of described metal probe links to each other with described rosette, and the other end runs through layer dielectric plate 12 and ground plate 4, external coaxial feeder; Described microstrip line coupling feed structure 32 along radial direction is that etching has the bandreject filtering structure on the described metal band, external microstrip feed line along the metal band of the radial direction extension of layer dielectric plate 12; Described bandreject filtering structure is made of 1/4 wavelength high impedance line corresponding to the 5.80GHz frequency range;
The radius of circular patch can be by high band TM
01The resonance frequency f of mould
R2=5.80GHz determines, utilizes formula R
2=3.832c/ (2 π f
R2ε
r 1/2) approximate calculate R
2=15.1mm, but its corresponding low-frequency range TM
11The resonance frequency f of mould
R1=1.841c/ (2 π R
2ε
r 1/2)=2.79GHz, need be on circular patch suitably slot make resonance frequency be reduced to 2.40GHz to prolong current path, cut axisymmetric two narrow slits along radial direction with x for this reason, be with the x axle respectively ± the β angle, length is l
1, l
2Two of unequal lengths radially narrow slit do not influence TM
01The electric current line that mould radially distributes is to TM
11Mould also has staggered tuning effect, the effective impedance matching frequency band of broadening 2.40GHz, the taking off of impedance bandwidth that causes when with compensation antenna being worn on human body.
As shown in Figure 1, the length of metal band is l
3, width is w
1, the high impedance live width that constitutes the bandreject filtering structure is w
2, the radius that loads disk is R
3Utilize the Electromagnetic Simulation software HFSS-11.0 of Ansoft company to carry out simulation analysis, optimize satisfactory antenna physical dimension: R
1=28mm, R
2=13.2mm, R
3=3mm; l
1=12.8mm, l
2=11mm, β=28 °; l
3=20.6mm, l
4=5.8mm; w
1=1.5mm, w
2=0.2mm, w
3=0.15mm.The characteristic impedance of port one and port 2 external feeder lines all is 50 Ω.Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 have provided the emulation or the test result of this example antenna respectively.
The personage who knows this area will understand, though described specific embodiment for the ease of explaining here, can make various changes under the situation that does not deviate from spirit and scope of the invention.Therefore, except claims, can not be used to limit the present invention.
Claims (6)
1. a dual-frequency dual-polarized printing antenna comprises dielectric-slab (1), radiating element (2), feed structure (3) and ground plate (4), it is characterized in that: described dielectric-slab (1) is a disc, is divided into top dielectric plate (11) and layer dielectric plate (12); Described radiating element (2) is printed on the upper surface of described top dielectric plate (11); Described feed structure (3) is printed on the upper surface of described layer dielectric plate (12); Described feed structure (3) loads probe coupling feed structure (31) and integrated along the microstrip line coupling feed structure (32) of radial direction by the disk that is positioned at described dielectric-slab (1) center; Described ground plate (4) is printed on the lower surface of described layer dielectric plate (12).
2. dual-frequency dual-polarized printing antenna according to claim 1, it is characterized in that: described disk loads probe coupling feed structure (31) and is made of rosette and metal probe, described rosette is concentric with described layer dielectric plate (12), one end of described metal probe links to each other with described rosette, the other end runs through described layer dielectric plate (12) and described ground plate (4), external coaxial feeder.
3. dual-frequency dual-polarized printing antenna according to claim 1, it is characterized in that: the described metal band that extends for radial direction along the microstrip line coupling feed structure (32) of radial direction along described layer dielectric plate (12), etching has the bandreject filtering structure on the described metal band, external microstrip feed line.
4. dual-frequency dual-polarized printing antenna according to claim 3 is characterized in that: described bandreject filtering structure is made of 1/4 wavelength high impedance line.
5. dual-frequency dual-polarized printing antenna according to claim 1 is characterized in that: described radiating element (2) is the circular metal paster, has slit (21) along the radial direction of described metal patch.
6. dual-frequency dual-polarized printing antenna according to claim 5 is characterized in that: described slit (21) are two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010163322 CN101826650B (en) | 2010-05-05 | 2010-05-05 | Dual-frequency dual-polarized printing antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010163322 CN101826650B (en) | 2010-05-05 | 2010-05-05 | Dual-frequency dual-polarized printing antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101826650A true CN101826650A (en) | 2010-09-08 |
| CN101826650B CN101826650B (en) | 2012-12-19 |
Family
ID=42690432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010163322 Expired - Fee Related CN101826650B (en) | 2010-05-05 | 2010-05-05 | Dual-frequency dual-polarized printing antenna |
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| Country | Link |
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| CN (1) | CN101826650B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163767A (en) * | 2011-03-24 | 2011-08-24 | 清华大学 | Coplane-integrated global positioning system (GPS)/intelligent transportation system (ITS) antenna |
| CN102468534A (en) * | 2010-11-04 | 2012-05-23 | 北京和协航电科技有限公司 | Single-layer double-frequency microstrip antenna |
| CN102623800A (en) * | 2012-04-25 | 2012-08-01 | 湖南航天电子科技有限公司 | Multimode high-accuracy satellite navigation antenna |
| CN107331949A (en) * | 2017-06-14 | 2017-11-07 | 南京邮电大学 | A kind of design method of car antenna |
| CN107732446A (en) * | 2017-09-29 | 2018-02-23 | 崔洁 | A kind of circular patch microstrip antenna |
| WO2018166300A1 (en) * | 2017-03-14 | 2018-09-20 | 中兴通讯股份有限公司 | Filtering antenna |
| CN108761218A (en) * | 2018-05-24 | 2018-11-06 | 广东曼克维通信科技有限公司 | Dual polarization near-field measurement probe |
| CN109586007A (en) * | 2018-10-26 | 2019-04-05 | 西安电子科技大学 | Planar tracks angular momentum antenna based on Butler matrix |
| CN112201936A (en) * | 2020-09-30 | 2021-01-08 | 东南大学 | Dual-band triple-polarized antenna based on closed mushroom-shaped unit structure |
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| JPH06112728A (en) * | 1992-09-29 | 1994-04-22 | Sony Corp | Ring-shaped microstrip antenna |
| JP2003338709A (en) * | 2002-03-11 | 2003-11-28 | Matsushita Electric Ind Co Ltd | Antenna device |
| CN101154767A (en) * | 2006-09-28 | 2008-04-02 | 香港城市大学 | Wideband antenna |
| CN101257142A (en) * | 2008-04-15 | 2008-09-03 | 北京航空航天大学 | Annular satellite navigation aerial and manufacturing method thereof |
| CN201797036U (en) * | 2010-05-05 | 2011-04-13 | 东南大学 | Double-frequency dual-polarized printed antenna |
-
2010
- 2010-05-05 CN CN 201010163322 patent/CN101826650B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06112728A (en) * | 1992-09-29 | 1994-04-22 | Sony Corp | Ring-shaped microstrip antenna |
| JP2003338709A (en) * | 2002-03-11 | 2003-11-28 | Matsushita Electric Ind Co Ltd | Antenna device |
| CN101154767A (en) * | 2006-09-28 | 2008-04-02 | 香港城市大学 | Wideband antenna |
| CN101257142A (en) * | 2008-04-15 | 2008-09-03 | 北京航空航天大学 | Annular satellite navigation aerial and manufacturing method thereof |
| CN201797036U (en) * | 2010-05-05 | 2011-04-13 | 东南大学 | Double-frequency dual-polarized printed antenna |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102468534A (en) * | 2010-11-04 | 2012-05-23 | 北京和协航电科技有限公司 | Single-layer double-frequency microstrip antenna |
| CN102163767A (en) * | 2011-03-24 | 2011-08-24 | 清华大学 | Coplane-integrated global positioning system (GPS)/intelligent transportation system (ITS) antenna |
| CN102163767B (en) * | 2011-03-24 | 2014-09-24 | 清华大学 | Coplane-integrated global positioning system (GPS)/intelligent transportation system (ITS) antenna |
| CN102623800A (en) * | 2012-04-25 | 2012-08-01 | 湖南航天电子科技有限公司 | Multimode high-accuracy satellite navigation antenna |
| WO2018166300A1 (en) * | 2017-03-14 | 2018-09-20 | 中兴通讯股份有限公司 | Filtering antenna |
| CN108574140A (en) * | 2017-03-14 | 2018-09-25 | 中兴通讯股份有限公司 | Filter antenna |
| CN108574140B (en) * | 2017-03-14 | 2019-11-19 | 中兴通讯股份有限公司 | Filter antenna |
| CN107331949A (en) * | 2017-06-14 | 2017-11-07 | 南京邮电大学 | A kind of design method of car antenna |
| CN107732446A (en) * | 2017-09-29 | 2018-02-23 | 崔洁 | A kind of circular patch microstrip antenna |
| CN108761218A (en) * | 2018-05-24 | 2018-11-06 | 广东曼克维通信科技有限公司 | Dual polarization near-field measurement probe |
| CN109586007A (en) * | 2018-10-26 | 2019-04-05 | 西安电子科技大学 | Planar tracks angular momentum antenna based on Butler matrix |
| CN109586007B (en) * | 2018-10-26 | 2020-10-09 | 西安电子科技大学 | Planar orbital angular momentum antenna based on Butler matrix |
| CN112201936A (en) * | 2020-09-30 | 2021-01-08 | 东南大学 | Dual-band triple-polarized antenna based on closed mushroom-shaped unit structure |
| CN112201936B (en) * | 2020-09-30 | 2021-06-11 | 东南大学 | Dual-band triple-polarized antenna based on closed mushroom-shaped unit structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101826650B (en) | 2012-12-19 |
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