CN103066379B - A kind of broad band low profile conic sleeve monopole antenna - Google Patents
A kind of broad band low profile conic sleeve monopole antenna Download PDFInfo
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- CN103066379B CN103066379B CN201310019813.0A CN201310019813A CN103066379B CN 103066379 B CN103066379 B CN 103066379B CN 201310019813 A CN201310019813 A CN 201310019813A CN 103066379 B CN103066379 B CN 103066379B
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Abstract
The invention discloses a kind of broad band low profile conic sleeve monopole antenna, comprise monopole (1), taper top load sleeve (2), top loading disk (3), floor (6), the first grounding probe (4), the second grounding probe (5), radio frequency connector part (8); Monopole (1) is placed perpendicular to floor (6), pushes up loading disk (3) and is placed in monopole (1) top, with screw, top is loaded disk (3) and is connected with monopole (1), and top loads disk (3) and carries out top loading to monopole (1); Top is loaded disk (3) and carries out short circuit by four first grounding probes (4) and floor (6); The present invention by adding conical sleeve to monopole, and carries out the loading of annulus top to sleeve, and the broadening impedance bandwidth of antenna, reduces antenna size simultaneously effectively.
Description
Technical field
The present invention relates to monopole antenna, especially relate to a kind of broad band low profile conic sleeve monopole antenna.
Background technology
Along with the development of science and technology, it is universal that radio communication cause obtains energetically, and the requirement of people to the properties of antenna requisite in wireless communication system also improves day by day thus, as miniaturization, low section, broadband etc.And monopole antenna is as a kind of omnidirectional antenna, due to its good reliability, stability is high, structure is simple, cost is lower, is used widely in actual applications.
In order to realize the low section of monopole antenna, the method usually adopted carries out top to load, but while top is carried in reduction antenna height, increase the lateral dimension of antenna; Thick oscillator has lower characteristic impedance, and dissymmetrical structure form can play the staggered tuning effect in similar circuit, thus broadening impedance bandwidth effectively.The method of the conventional asymmetric feed of overstriking Harmonic Oscillators, is outside radiant body, add a coaxial with it metal sleeve, forms sleeve antenna.But the degree of the common cylindrical sleeve sky line broadening beamwidth of antenna is limited, and sleeve itself has certain volume.
Summary of the invention
The object of the invention is the deficiency overcoming above-mentioned prior art, propose a kind of broad band low profile conic sleeve monopole antenna.
The present invention adopts following technical scheme:
A kind of broad band low profile conic sleeve monopole antenna, comprises monopole (1), taper top load sleeve (2), top loading disk (3), floor (6), the first grounding probe (4), the second grounding probe (5), radio frequency connector part (8); Monopole (1) is placed perpendicular to floor (6), pushes up loading disk (3) and is placed in monopole (1) top, with screw, top is loaded disk (3) and is connected with monopole (1), and top loads disk (3) and carries out top loading to monopole (1); Top is loaded disk (3) and carries out short circuit by four first grounding probes (4) and floor (6); To monopole (1) in addition taper top load sleeve (2), the loading of annulus top is carried out on taper top load sleeve (2), and top loads the top that annulus (7) is welded on taper top load sleeve (2); The top on taper top load sleeve (2) loads annulus (7) by four second grounding probes (5) and floor (6) short circuit.
Described broad band low profile conic sleeve monopole antenna, described taper top load sleeve (2) is enclosed within monopole (1) conical sleeve outward, and pushed up loading annulus (7) at conical sleeve top.
Compared to the prior art, the invention has the beneficial effects as follows:
(1) loading by introducing top the height that disk reduces antenna, with probe, top loading disk and ground short circuit being efficiently reduced the lateral dimension of antenna;
(2) adopt conical sleeve, and carry out the loading of annulus top to sleeve, top loads and ground short circuit, efficiently reduces the size of sleeve;
(3) by adding taper top load sleeve, the broadening impedance bandwidth of antenna;
(4) top of tube-in-tube structure loads annulus energy and pushes up to load between disk and ground and forms capacitive couplings, effectively can compensate the perception of monopole and the introducing of short circuit post, by holding the input impedance of the balance adjustment antenna port of perception, antenna is made to meet voltage standing wave ratio in whole working band.Or can be understood as inductance that the electric capacity and short circuit post that are formed between annulus and disk and monopole formed to have encouraged and be positioned at main resonance point second resonance point nearby, thus the broadening bandwidth of operation of antenna;
(5) Fig. 3 gives actual measurement and the emulation voltage standing wave ratio curve of middle width strip of the present invention low section conical sleeve monopole antenna, the impedance bandwidth that antenna is less than 2 in 450M-750M voltage standing wave ratio reaches 48.6%, effectively can cover Digital Television (DVB-H) application band, achieve the miniaturization of antenna, low section and broadband, and have good omnidirectional radiation characteristic.
Accompanying drawing explanation
Fig. 1 is the entirety assembling schematic diagram of middle width strip of the present invention low section conical sleeve monopole antenna;
Fig. 2 is the decomposition texture schematic diagram of middle width strip of the present invention low section conical sleeve monopole antenna;
Fig. 3 is the actual measurement voltage standing wave ratio of middle width strip of the present invention low section conical sleeve monopole antenna;
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
With reference to figure 1 and Fig. 2, a kind of broad band low profile conic sleeve monopole antenna, comprises monopole 1, taper top load sleeve 2 loads annulus 7 with top, top loads disk 3, floor 6, short circuit top load the second grounding probe 5, the radio frequency connector part 8 that disk 3 and first grounding probe 4 on floor 6, the top of short circuit taper top load sleeve 2 load annulus 7 and floor 6.Monopole 1 is placed perpendicular to floor 6, and top loads disk 3 and is placed in monopole 1 top, with screw, top is loaded disk 3 and is connected with monopole 1, and top loading disk 3 pairs of monopoles 1 carry out top and load, and effectively can reduce the height of antenna; Top is loaded disk 3 and carry out short circuit by four first grounding probes 4 with floor 6, the lateral dimension of antenna can be reduced.To monopole 1 in addition taper top load sleeve 2, taper top load sleeve 2 also carries out the loading of annulus top, and top loads the top that annulus 7 is welded on taper top load sleeve 2; The top of taper top load sleeve 2 loads annulus 7 also by four second grounding probes 5 and floor 6 short circuit simultaneously, reduces the size of sleeve, thus further reduces the lateral dimension of antenna.
Taper top load sleeve 2 and the top of tube-in-tube structure load between disk 3, all can form capacitive couplings between taper top load sleeve 2 and floor 6, effectively can compensate the perception of monopole 1 and the introducing of the first grounding probe 4, second grounding probe 5.The input impedance of antenna port can well be regulated by the physical dimension of the position and thickness and taper top load sleeve 2 that regulate the first grounding probe 4, second grounding probe 5, grounding probe 4 and the nearlyer perception of grounding probe 5 decentre stronger, the thinner perception of its diameter is stronger, the larger capacitive of diameter that taper top loads disk is stronger, and each physical dimension of reasonable adjusting can make antenna meet voltage standing wave ratio in wider working band.
Adding taper top load sleeve 2 to monopole 1 can the broadening beamwidth of antenna effectively.Taper top load sleeve 2 relative to cylindrical sleeve small volume, and carries out to taper top load sleeve 2 size that the loading of disk top further reduces sleeve.
Utilize vector network analyzer Agilent E8363B to test antenna model, Fig. 3 gives the measured result of the voltage standing wave ratio of antenna, give also full-wave simulation software emulation result simultaneously and contrasts.As shown in the figure, the measured result of aerial voltage standing-wave ratio and simulation result are substantially identical, and antenna frequency band is overall to low frequency skew about 3MHz, and this difference causes due to mismachining tolerance.Test result in kind shows, the working band of antenna model VSWR≤2 is 446MHz ~ 732MHz, and relative bandwidth is 48.6%, meets the basic demand of Digital Television DVB-H (470 ~ 706MHz) bandwidth of operation.
The broad band low profile conic sleeve monopole antenna that the present invention proposes has good electrical performance indexes, meet the basic demand of Digital Television DVB-H frequency range, antenna has good omnidirectional radiation characteristic and the simple feature of structure simultaneously, and antenna achieves low section, effectively can realize indoor location and beautify surrounding environment.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve and convert the protection range that all should belong to claims of the present invention.
Claims (1)
1. a broad band low profile conic sleeve monopole antenna, it is characterized in that, comprise monopole (1), taper top load sleeve (2), top loading disk (3), floor (6), the first grounding probe (4), the second grounding probe (5), radio frequency connector part (8); Monopole (1) is placed perpendicular to floor (6), top loads disk (3) and is placed in monopole (1) top, with screw, top is loaded disk (3) to be connected with monopole (1), top loads disk (3) and carries out top loading to monopole (1); Top is loaded disk (3) and carries out short circuit by four first grounding probes (4) and floor (6); To monopole (1) in addition taper top load sleeve (2), the loading of annulus top is carried out on taper top load sleeve (2), and top loads the top that annulus (7) is welded on taper top load sleeve (2); The top on taper top load sleeve (2) loads annulus (7) by four second grounding probes (5) and floor (6) short circuit;
Described taper top load sleeve (2) is enclosed within monopole (1) conical sleeve outward, and pushed up loading annulus (7) at conical sleeve top.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310019813.0A CN103066379B (en) | 2013-01-18 | 2013-01-18 | A kind of broad band low profile conic sleeve monopole antenna |
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| CN201310019813.0A CN103066379B (en) | 2013-01-18 | 2013-01-18 | A kind of broad band low profile conic sleeve monopole antenna |
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| CN103066379A CN103066379A (en) | 2013-04-24 |
| CN103066379B true CN103066379B (en) | 2015-09-09 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3955385A1 (en) * | 2020-08-10 | 2022-02-16 | Antonics - ICP GmbH | Exciter structure for broadcasting and / or receiving radio signals |
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| EP3002826B1 (en) * | 2014-07-03 | 2024-04-17 | Swisscom AG | Antenna apparatus |
| GB2527836B (en) * | 2014-07-03 | 2016-05-18 | Swisscom Ag | Low profile monocone and ground conductor antenna arrangement |
| CN105932414B (en) * | 2016-05-25 | 2018-11-23 | 佛山市粤海信通讯有限公司 | Ultrathin frequency multiplication single polarization omnidirectional antenna |
| CN106299689B (en) * | 2016-08-31 | 2019-04-19 | 电子科技大学 | A kind of ultra wide band low section vertical depolarized omnidirectional antenna |
| CN107732425A (en) * | 2017-09-01 | 2018-02-23 | 哈尔滨工业大学 | Broadband low section vertical depolarized omnidirectional antenna |
| CN109449578B (en) * | 2018-10-24 | 2020-02-04 | 西安电子科技大学 | Quasi-omnidirectional antenna with compact structure and wide frequency band |
| CN110350300B (en) * | 2018-12-12 | 2021-02-19 | 北京交通大学 | Multi-frequency band antenna |
| CN110277647B (en) * | 2019-06-05 | 2020-10-27 | 华南理工大学 | Antenna for secret communication |
| CN110797628B (en) * | 2019-11-09 | 2022-01-04 | 南京信息工程大学 | Top loading sleeve antenna applied to UAV |
| CN114256606B (en) * | 2021-12-21 | 2024-03-29 | 上海海积信息科技股份有限公司 | Antenna |
| CN114583458B (en) * | 2022-05-06 | 2022-07-15 | 南京容测检测技术有限公司 | Small reverberation chamber excitation antenna |
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| EP0963004B1 (en) * | 1998-06-04 | 2004-02-04 | Matsushita Electric Industrial Co., Ltd. | Monopole antenna |
| JP3651594B2 (en) * | 2001-10-24 | 2005-05-25 | 日本電気株式会社 | Antenna element |
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| A Monopolar Patch Antenna With Very Wide Impedance Bandwidth;Ka-Leung Lau et al;《IEEE TRANSACTIONS ON ANTENNAS AND PROPAGAION》;20050314;第53卷(第3期);第1004-1006页 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3955385A1 (en) * | 2020-08-10 | 2022-02-16 | Antonics - ICP GmbH | Exciter structure for broadcasting and / or receiving radio signals |
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| CN103066379A (en) | 2013-04-24 |
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Application publication date: 20130424 Assignee: Guangdong Wei Tong Communication Technology Co., Ltd. Assignor: Xidian University Contract record no.: 2015440000800 Denomination of invention: Broad band low profile conic sleeve monopole antenna Granted publication date: 20150909 License type: Exclusive License Record date: 20151126 |
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Assignee: Guangdong Wei Tong Communication Technology Co., Ltd. Assignor: Xidian University Contract record no.: 2015440000800 Date of cancellation: 20180427 |
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