CN1996662A - Ultra-wide antenna with the base-integrated wave guide feedback structure - Google Patents
Ultra-wide antenna with the base-integrated wave guide feedback structure Download PDFInfo
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- CN1996662A CN1996662A CN 200610148205 CN200610148205A CN1996662A CN 1996662 A CN1996662 A CN 1996662A CN 200610148205 CN200610148205 CN 200610148205 CN 200610148205 A CN200610148205 A CN 200610148205A CN 1996662 A CN1996662 A CN 1996662A
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Abstract
This invention relates tone base integrating wave feedback structure super wide antenna in the wireless communication field, which comprises the following parts: input or output ends, micro band feedback unit, antenna unit, gradually change unit, even transmission unit, over hole unit, co-surface waveguide unit and each unit, wherein, four antenna units are in circle shape with even transmission units connected each two and with orderly decreased sizes from outside to center to form branch structure.
Description
Technical field
What the present invention relates to is a kind of antenna that is applied to wireless communication technology field, especially a kind of feeding substrate integrated waveguide structure ultra-wideband antenna.
Background technology
In recent years, ultra broadband (UWB) short-distance wireless communication had caused that the global communication technical field paid attention to greatly.Ultra broadband (Ultra-wideband, UWB) technology is compared with other communication technology, and Ultra-wideband Communication Technology is strong with its transmission rate height, anti-multipath interference performance, help advantage such as multifunctional all becomes short-distance wireless communication and have one of technology of competitiveness and development prospect.Simultaneously super-broadband tech has that the signal power spectrum density is low, high security, advantage such as is difficult for detecting, system complexity is low, is particularly useful for the indoor high-speed radio in multi-path dense place that waits and inserts and military communication.Ultra-wideband antenna structure of the prior art, as traveling-wave antenna, logarithm periodic antenna, equiangular spiral antenna, ridge waveguide horn antenna etc., these antenna can be realized the working band of several octaves.But these classical ultra-wideband antenna structures all have a common shortcoming, and are promptly many greatly than the physical dimension of narrow-band antenna of the same type, do not satisfy the little requirement of UWB system configuration.At the development and the application of Ultra-wideband Communication Technology system, need the novel ultra-wideband antenna of development, as: standing-wave ratio is little, gain is high, volume is little, cost is low, section is low and it is integrated etc. to be convenient to.(Substrate Integrated Waveguide is a kind of novel high quality factor, low-loss integrated wave guide structure SIW) to substrate integration wave-guide, is easy to design and processing, can be widely used in the microwave and millimeter wave integrated circuit.Therefore utilize the paster antenna of the feed structure of substrate integration wave-guide realization to become one of first-selected antenna form.
Find through literature search prior art, Nanjing Univ. of Posts and Telecommunications: people such as Lv Wenjun are at the microwave journal, the 22 volume fourth phases were delivered " design and research of coplanar wave guide feedback small-sized plane ultra-wideband antenna ", this antenna has adopted the tuning detail of prong like, and its radiating slot is designed to polygon.This antenna has the characteristic of broadband impedance conversion, can effectively cover 3.1～10.6GHz working frequency range.But the input reflection coefficient of the high band of this antenna is bigger and working band omits to high-end skew.And because this antenna needs a very big co-planar waveguide to realize feed, therefore make that the size of antenna is bigger, be unfavorable for the miniaturization Design of antenna.
Also find number of patent application 200510130662.1 in the retrieval, patent name is: micro band superwide band antenna, patent publication No. CN 1787286, the signal metal of this ultra-wideband antenna and ground level metal are printed on the tow sides of pcb board respectively, and the major part of antenna is made up of a wine glass-shaped signal metal and two blocks of ground level metals.Though this antenna can satisfy transmitting and receiving to cover the 3.1-10.6GHz working frequency range of ultra-wideband impulse signal.But the resonance point skewness of the frequency characteristic of this antenna be difficult for to be realized linear phase, and the impedance matching that needs size by changing the wine glass-shaped metal and feed angle to realize antenna in design is unfavorable for the miniaturization Design of antenna.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art and defective, a kind of feeding substrate integrated waveguide structure ultra-wideband antenna is provided, make its monopole micro-strip paster antenna that can realize utilizing the feeding substrate integrated waveguide structure realize the frequency range requirement of IEEE 802.15.3a standard, simultaneously this micro band superwide band antenna have that volume is less relatively, structure is simple and clear, cost is low, section is low and it is integrated to be convenient to, easy conformal advantage.
The present invention is achieved by the following technical solutions:
The present invention includes: the input output port, microstrip-fed unit, ground unit, the transition line unit, the uniform transmission line unit, antenna element, dielectric-slab, co-planar waveguide unit and through-hole unit, antenna element links to each other with the uniform transmission line unit by the transition line unit, microstrip-fed unit connect respectively the input output port and antenna element, be positioned at the front of dielectric-slab, input the core and the microstrip-fed unit of output port join, the co-planar waveguide unit is positioned at the dielectric-slab front portion, through-hole unit and co-planar waveguide unit, ground unit connects, ground unit is positioned at the dielectric-slab back side, antenna element, the co-planar waveguide unit, transmission line unit and transition line unit are conductor, through-hole unit all is an airport, two co-planar waveguide unit and input the outer conductor of output port be connected.
Described antenna element has four, and antenna element links to each other with the uniform transmission line unit by the transition line unit between any two; Antenna element all is positioned at the dielectric-slab front, and all presents annular; Advance its size to reduce successively to the center from the outside, and form fractal structure.
Described co-planar waveguide unit, totally two, two co-planar waveguide unit all are 1/4 circular microstrip pasters, the effect of co-planar waveguide unit and the parallel realization signal ground in microstrip-fed unit.
Described through-hole unit has ten, and being symmetrically distributed respectively connects between co-planar waveguide unit and the ground unit.
Described ground unit, semicircular in shape, profile is consistent with two co-planar waveguide unit, and is symmetrically distributed between two co-planar waveguide unit and the ground unit; The number of via hole is arithmetic progression and is arranged by six two of being decremented to both sides successively near microstrip-fed unit in each through-hole unit.
Described microstrip-fed unit, its left end connect input output port, right-hand member connects first antenna element, all there is the slit microstrip-fed unit and two co-planar waveguide unit, and realize the characteristic impedance of 50 Ω.
Described transition line unit, the width between first antenna element and second antenna element be than the described narrow 0.2mm in microstrip-fed unit, and the 0.2mm that successively decreases successively respectively between the antenna element in twos realizes the wide band frequency characteristics of millimeter wave antenna.
Described uniform transmission line unit and transition line unit are perpendicular, and link to each other with four antenna elements respectively.
Described input output port outer signal source, the pumping signal that adds is transferred to four antenna elements, transition line unit and uniform transmission line unit by microstrip-fed unit, go out by four antenna element space radiations towards periphery then, realize transmitting and receiving of ultra-broadband signal.
The present invention and prior art contrast has following positive effect: the present invention is by realizing wide band frequency characteristics by fractal antenna element, between each fractal antenna unit and adopt transition line to connect and to realize good impedance matching, increase its bandwidth characteristic, between each fractal antenna unit, adopt uniform transmission line to link to each other simultaneously and fetch the omnidirectional radiation of realizing antenna.The operating frequency of feeding substrate integrated waveguide structure ultra-wideband antenna of the present invention is 2GHz-22GHz, can effectively realize 200% relative bandwidth.Return loss is less than-10dB in operating frequency range in the present invention, and greater than 2dBi, and this antenna is of a size of 40mm * 40mm in the gain of 2GHz-22GHz scope internal antenna, has that relative volume is little, cost is low, section is low and be convenient to advantages such as integrated.Because what antenna of the present invention adopted is the feeding substrate integrated waveguide structure, can on monolithic, realize and radio circuit integrated.
Description of drawings
Fig. 1 is a three-dimensional structure schematic diagram of the present invention
Fig. 2 is a Facad structure schematic diagram of the present invention
Fig. 3 is a reverse side structural representation of the present invention
Fig. 4 is a side structure schematic diagram of the present invention
Wherein: 1 for input output port, 2 for microstrip-fed unit, 3 be the first co-planar waveguide unit, 4 be the second co-planar waveguide unit, 5-14 be first through-hole unit to the, ten through-hole unit, 15 be first antenna element, 16 for transition line unit, 17 be second antenna element, 18 for the uniform transmission line unit, 19 for the third antenna unit, 20 for dielectric-slab, 21 be that the 4th antenna element, 22 is for ground unit.
Fig. 5 is the frequency characteristic schematic diagram of emulation of the present invention
Fig. 6 is the 2.6GHz direction schematic diagram of emulation of the present invention
Fig. 7 is the 5.4GHz direction schematic diagram of emulation of the present invention
Fig. 8 is the 8.6GHz direction schematic diagram of emulation of the present invention
Fig. 9 is the 12GHz direction schematic diagram of emulation of the present invention
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated: present embodiment is being to implement under the prerequisite with the technical solution of the present invention, provided detailed execution mode and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
Shown in Fig. 1-4, present embodiment comprises: the input output port 1, microstrip-fed unit 2, the first co-planar waveguide unit 3, the second co-planar waveguide unit 4, first through-hole unit 5, second through-hole unit 6, the 3rd through-hole unit 7, the 4th through-hole unit 8, the 5th through-hole unit 9, the 6th through-hole unit 10, the 7th through-hole unit 11, the 8th through-hole unit 12, the 9th through-hole unit 13, the tenth through-hole unit 14, first antenna element 15, transition line unit 16, second antenna element 17, uniform transmission line unit 18, third antenna unit 19, dielectric-slab 20, the 4th antenna element 21 and ground unit 22, present embodiment first antenna element 15, second antenna element 17, third antenna unit 19 links to each other with uniform transmission line unit 18 by transition line unit 10 between any two with the 4th antenna element 21, four antenna elements 15,17,19,21 all are positioned at dielectric-slab 20 fronts, and all present annular, advance its size to reduce successively to the center from the outside, and form fractal structure;
Described two co-planar waveguide unit 3,4 all are 1/4 circular microstrip pasters, are positioned at dielectric-slab 20 front portions, with the effect of the parallel realization signal ground in microstrip-fed unit;
Described ten through- hole unit 5,6,7,8,9,10,11,12,13,14 are symmetrically distributed between two co-planar waveguide unit 3,4 and the ground unit 22;
Described ground unit 22 semicirculars in shape, profile is consistent with two co-planar waveguide unit 3,4, the number of via hole is by 62 of being decremented to both sides successively near microstrip-fed unit 2 in each through-hole unit, being arithmetic progression arranges, described uniform transmission line unit 18 is perpendicular with transition line unit 16, and links to each other with four antenna elements 15,17,19,21 respectively;
Described microstrip-fed unit 2 is uniform microstrip lines, microstrip-fed unit 2 is positioned at the front of dielectric-slab 20, left end connect input output port 1, right-hand member connects first antenna element 15, between the microstrip-fed unit 2 and the first co-planar waveguide unit 3 and the first co-planar waveguide unit 4 slit is arranged all, and realize the characteristic impedance of 50 Ω;
Described transition line unit 16 is microstrip lines heterogeneous, width between first antenna element 15 and second antenna element 17 is than the narrow 0.2mm in microstrip-fed unit, the 0.2mm that successively decreases successively respectively between the antenna element in twos realizes the wide band frequency characteristics of ultra-wideband antenna;
Described first antenna element 15, second antenna element 17, third antenna unit 19, the 4th antenna element 21, microstrip-fed unit 2, the first co-planar waveguide unit 3, the second co-planar waveguide unit 4, ground unit 22, uniform transmission line unit 18 and transition line unit 16 are conductor, ten through- hole unit 5,6,7,8,9,10,11,12,13,14 all are airports, two co-planar waveguide unit 3,4 and input the outer conductor of output port 1 be connected.
As shown in Figure 5, the frequency characteristic of present embodiment is a return wave loss parameter.Wherein abscissa is represented frequency variable, and unit is GHz; Ordinate is represented the amplitude variable, and unit is dB.The working band of a kind of feeding substrate integrated waveguide structure of present embodiment ultra-wideband antenna is 2GHz-22GHz, return wave loss parameter in passband less than-10dB.
As shown in Figure 6, the gain characteristic of present embodiment is the directional diagram parameter.Wherein polar angle changes the angle of representing this plane and changes, and unit is degree; The unit of amplitude variable is dBi.The maximum gain of a kind of feeding substrate integrated waveguide structure of present embodiment ultra-wideband antenna when operating frequency is 2.6GHz is 2.0dBi.
As shown in Figure 7, the maximum gain of a kind of feeding substrate integrated waveguide structure of present embodiment ultra-wideband antenna when operating frequency is 5.4GHz is 2.7dBi.
As shown in Figure 8, the maximum gain of a kind of feeding substrate integrated waveguide structure of present embodiment ultra-wideband antenna when operating frequency is 8.6GHz is 4.9dBi.
As shown in Figure 9, the maximum gain of a kind of feeding substrate integrated waveguide structure of present embodiment ultra-wideband antenna when operating frequency is 12GHz is 4.5dBi.
Claims (10)
1, a kind of feeding substrate integrated waveguide structure ultra-wideband antenna, comprise the input output port, microstrip-fed unit, ground unit, the transition line unit, the uniform transmission line unit, antenna element, dielectric-slab, co-planar waveguide unit and through-hole unit, it is characterized in that, antenna element links to each other with the uniform transmission line unit by the transition line unit, microstrip-fed unit connect respectively the input output port and antenna element, be positioned at the front of dielectric-slab, input the core and the microstrip-fed unit of output port join, the co-planar waveguide unit is positioned at the dielectric-slab front portion, through-hole unit and co-planar waveguide unit, ground unit connects, ground unit is positioned at the dielectric-slab back side, antenna element, the co-planar waveguide unit, transmission line unit and transition line unit are conductor, through-hole unit all is an airport, two co-planar waveguide unit and input the outer conductor of output port be connected.
2, feeding substrate integrated waveguide structure ultra-wideband antenna as claimed in claim 1 is characterized in that, described antenna element has four, and antenna element links to each other with the uniform transmission line unit by the transition line unit between any two.
3, feeding substrate integrated waveguide structure ultra-wideband antenna as claimed in claim 1 is characterized in that described antenna element all is positioned at the dielectric-slab front, and all presents annular, advances its size to reduce successively to the center from the outside, and forms fractal structure.
4, feeding substrate integrated waveguide structure ultra-wideband antenna as claimed in claim 1 is characterized in that, described co-planar waveguide unit, and totally two, two co-planar waveguide unit all are 1/4 circular microstrip pasters.
5, feeding substrate integrated waveguide structure ultra-wideband antenna as claimed in claim 1 is characterized in that, described through-hole unit has ten, and being symmetrically distributed respectively connects between co-planar waveguide unit and the ground unit.
6, feeding substrate integrated waveguide structure ultra-wideband antenna as claimed in claim 1 is characterized in that, described ground unit, and semicircular in shape, profile is consistent with two co-planar waveguide unit, and is symmetrically distributed between two co-planar waveguide unit and the ground unit; The number of via hole is arithmetic progression and is arranged by six two of being decremented to both sides successively near microstrip-fed unit in each through-hole unit.
7, feeding substrate integrated waveguide structure ultra-wideband antenna as claimed in claim 1, it is characterized in that, described microstrip-fed unit, its left end connect input output port, right-hand member connects first antenna element, all there is the slit microstrip-fed unit and two co-planar waveguide unit, and realize the characteristic impedance of 50 Ω.
8, feeding substrate integrated waveguide structure ultra-wideband antenna as claimed in claim 1, it is characterized in that, described transition line unit, width between first antenna element and second antenna element is than the described narrow 0.2mm in microstrip-fed unit, the 0.2mm that successively decreases successively respectively between the antenna element in twos realizes the wide band frequency characteristics of millimeter wave antenna.
9, feeding substrate integrated waveguide structure ultra-wideband antenna as claimed in claim 1 is characterized in that, described uniform transmission line unit and transition line unit are perpendicular, and links to each other with four antenna elements respectively.
10, feeding substrate integrated waveguide structure ultra-wideband antenna as claimed in claim 1 is characterized in that,
Described input output port outer signal source, the pumping signal that adds is transferred to four antenna elements, transition line unit and uniform transmission line unit by microstrip-fed unit, go out by four antenna element space radiations towards periphery then, realize transmitting and receiving of ultra-broadband signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200610148205XA CN1996662B (en) | 2006-12-28 | 2006-12-28 | Ultra-wide antenna with the base-integrated wave guide feedback structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200610148205XA CN1996662B (en) | 2006-12-28 | 2006-12-28 | Ultra-wide antenna with the base-integrated wave guide feedback structure |
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| CN1996662A true CN1996662A (en) | 2007-07-11 |
| CN1996662B CN1996662B (en) | 2012-03-21 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103259096A (en) * | 2013-05-16 | 2013-08-21 | 厦门大学 | Oval intersecting nesting multi-loop recursive microstrip antenna for compass system |
| CN103337701A (en) * | 2013-07-08 | 2013-10-02 | 江苏大学 | Small opened annular coplanar waveguide omnidirectional ultra-wide band antenna comprising fork radiating unit |
| CN103762417A (en) * | 2013-12-31 | 2014-04-30 | 电子科技大学 | Three-frequency-band monopole antenna |
| CN105742809A (en) * | 2016-05-16 | 2016-07-06 | 哈尔滨共阳科技咨询有限公司 | Near field communication (NFC) antenna |
| CN106532244A (en) * | 2016-11-03 | 2017-03-22 | 云南大学 | Multiband circular slot antenna for substrate integrated waveguide |
| CN107732446A (en) * | 2017-09-29 | 2018-02-23 | 崔洁 | A kind of circular patch microstrip antenna |
| CN109768377A (en) * | 2019-02-26 | 2019-05-17 | 重庆邮电大学 | A kind of three frequency of millimeter wave, three polarization substrate integration wave-guide antenna |
| CN109888475A (en) * | 2019-02-26 | 2019-06-14 | 重庆邮电大学 | A kind of millimeter wave dual-band dual-circular polarization substrate integration wave-guide antenna |
Family Cites Families (3)
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| KR100665007B1 (en) * | 2004-11-15 | 2007-01-09 | 삼성전기주식회사 | Ultra wide band internal antenna |
| CN100369323C (en) * | 2005-03-10 | 2008-02-13 | 上海大学 | Super broad band ladder-shape floor printing single pole antenna |
| CN100414770C (en) * | 2005-12-08 | 2008-08-27 | 上海交通大学 | Coplane waveguide feed ultra wideband fractal antenna |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259096A (en) * | 2013-05-16 | 2013-08-21 | 厦门大学 | Oval intersecting nesting multi-loop recursive microstrip antenna for compass system |
| CN103337701A (en) * | 2013-07-08 | 2013-10-02 | 江苏大学 | Small opened annular coplanar waveguide omnidirectional ultra-wide band antenna comprising fork radiating unit |
| CN103762417A (en) * | 2013-12-31 | 2014-04-30 | 电子科技大学 | Three-frequency-band monopole antenna |
| CN103762417B (en) * | 2013-12-31 | 2016-02-10 | 电子科技大学 | Three frequency range monopole antennas |
| CN105742809A (en) * | 2016-05-16 | 2016-07-06 | 哈尔滨共阳科技咨询有限公司 | Near field communication (NFC) antenna |
| CN105742809B (en) * | 2016-05-16 | 2019-04-23 | 广州市城域信息科技有限公司 | A kind of NFC near-field communication aerial |
| CN106532244A (en) * | 2016-11-03 | 2017-03-22 | 云南大学 | Multiband circular slot antenna for substrate integrated waveguide |
| CN107732446A (en) * | 2017-09-29 | 2018-02-23 | 崔洁 | A kind of circular patch microstrip antenna |
| CN109768377A (en) * | 2019-02-26 | 2019-05-17 | 重庆邮电大学 | A kind of three frequency of millimeter wave, three polarization substrate integration wave-guide antenna |
| CN109888475A (en) * | 2019-02-26 | 2019-06-14 | 重庆邮电大学 | A kind of millimeter wave dual-band dual-circular polarization substrate integration wave-guide antenna |
| CN109768377B (en) * | 2019-02-26 | 2021-06-18 | 重庆邮电大学 | Millimeter wave three-frequency three-polarization substrate integrated waveguide antenna |
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