CN103531893B - The antenna structure of unipolar broadband - Google Patents
The antenna structure of unipolar broadband Download PDFInfo
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- CN103531893B CN103531893B CN201210230265.1A CN201210230265A CN103531893B CN 103531893 B CN103531893 B CN 103531893B CN 201210230265 A CN201210230265 A CN 201210230265A CN 103531893 B CN103531893 B CN 103531893B
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- unipolar
- elongated end
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- broadband
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Abstract
A kind of antenna structure of unipolar broadband, comprise: an antenna field, this antenna field comprises independently a radiating principal and independently a frequency band frequency range adjustment district, this radiating principal includes one first elongated end, one second elongated end and a FD feed end, and this first elongated end forms one first impedance matching adjustment district along first direction; This second elongated end engages with this first elongated end and forms a main radiation area along second direction; This FD feed end is connected with this two elongated ends joint and extends along third direction; This frequency band frequency range adjustment district is arranged between this two elongated end folded one-tenth region; One access area, is adjacent to this FD feed end; And one second impedance matching adjustment district, increase and decrease area with the region between this access area and this antenna field contiguous and do an adjustment.The present invention is the wall-hanging Uni-pole wide band antenna that can adjust easily, has the advantage of large wideband, is applicable to multiple electronic product, can directly be shaped in circuit boards, has low cost and the light and handy advantage of volume.
Description
Technical field
The present invention relates to a kind of antenna structure of unipolar broadband, particularly relate to a kind of printing-type wall-hanging Uni-pole wide band antenna.
Background technology
In the epoch now that development in science and technology is maked rapid progress, electronic product needs the antenna of multiple light and handy size, the electronic product of application for example, can comprise: mobile phone, mobile computer or circumscribed radio transmitting device (wireless network base stations (Access Point, AP) or in wireless network card (Card Bus)), generally speaking, inverted F shaped antenna (the Planar Inverse-F Antenna of plane, or two kind antennas of unipole antenna (Monopole Antenna) PIFA), there is light structure and transmit the excellent characteristic of usefulness, extensively be present in hand-held electronic product.And existing two kinds of traditional antennas, the inner conductor layer of the most coaxial cable of its design and outer contact layer are welded in signal feed-in point and the signal ground point of the inverted F shaped antenna of plane respectively, then are exported by the inverted F shaped antenna of signal transmission via plane.And unipole antenna is also use comparatively early and be still stored in the antenna structure of general available handheld electronic product.
An existing wide frequency antenna is disclosed by TaiWan, China patent No. TW 200824289, this antenna structure is unstable, have easily to cause and topple over and problem that production technology difficulty is higher, and this antenna is arranged in electronic product and needs an antenna fixing structure to be fixed, so substantially increase production cost.
Existing another two wide frequency antennas are disclosed by TaiWan, China patent No. TW M260011 and TW M325616, this two external antenna is in response to electronic wireless frequency range section, design adopts the antenna structure of larger volume, for exquisite light and handy electronic product, add the inconvenience in use undoubtedly.
Summary of the invention
The object of the invention is to the antenna structure proposing a kind of unipolar broadband, it is for providing a kind of wall-hanging Uni-pole wide band antenna that can adjust easily.
Another object of the present invention is to the antenna structure that a kind of unipolar broadband is provided, the operation frequency range of the antenna of the unipolar broadband of the application is via easy adjustment and correction, be applicable to forth generation mobile communication standard long-term evolution technology (Long Term Evolution, LTE), WiFi(802.11a), the communications band of related electronic products of ultra-wideband UWB (UltraWideband) and global intercommunication microwave access (Worldwide Interoperability for MicrowaveAccess, WiMAX).
For reaching above-mentioned purpose, the present invention is a kind of antenna structure of unipolar broadband, and it is made on a printed circuit board (PCB), includes:
One antenna field, this antenna field comprises independently a radiating principal and independently a frequency band frequency range adjustment district, this radiating principal includes one first elongated end, one second elongated end and a FD feed end, and wherein this first elongated end forms one first impedance matching adjustment district along first direction; This second elongated end engages with this first elongated end and forms a main radiation area along second direction; This FD feed end is connected with this two elongated ends joint and extends along third direction; This frequency band frequency range adjustment fauna is arranged between this two elongated end folded one-tenth region;
One access area, is adjacent to this FD feed end; And
One second impedance matching adjustment district increases and decreases area with the region between this access area and this antenna field contiguous to do an adjustment.
Preferably, this FD feed end is more connected with a resistance, and the resistance value of this resistance is 50 Ω.
Preferably, the shape of this radiating principal is close to " Y " font.
Preferably, the operation frequency range of the antenna structure of this unipolar broadband is 4GHz to 7GHz.
Preferably, the shape in this frequency band frequency range adjustment district is close to triangle island block, and wherein a drift angle is adjacent to this second elongated end.
Preferably, this radiating principal is formed by a microstrip line.
Preferably, this radiating principal extends to a predetermined resonant length, and this second elongated end length equals 1/4th length of designed frequency range frequency of utilization resonance.
Preferably, the part of this second elongated end broadens gradually to second direction.
Preferably, this first elongated end has at least one bending.
Preferably, this printed circuit board (PCB) is formed by a dielectric substrates.
The antenna structure of unipolar broadband of the present invention is a kind of wall-hanging Uni-pole wide band antenna that can adjust easily.Have the advantage of large wideband, therefore be applicable in multiple electronic product, the antenna of the unipolar broadband of the application is directly shaped in circuit boards, has low cost and the light and handy advantage of volume.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the forward sight structure chart of Uni-pole wide band antenna of the present invention;
Fig. 2 is the three-dimensional structure diagram of Uni-pole wide band antenna of the present invention;
Fig. 3 A ~ C is that Uni-pole wide band antenna of the present invention utilizes first and second impedance matching of access area adjustment district and frequency band frequency range adjustment district to make band width adjustment schematic diagram;
Fig. 4 is the voltage standing wave ratio of Uni-pole wide band antenna of the present invention and the curve chart of frequency.
Wherein, Reference numeral:
1 ~ printed circuit board (PCB)
11 ~ antenna field
111 ~ radiating principal
1111 ~ the second elongated ends
1112 ~ the first elongated ends
1113 ~ FD feed end
112 ~ frequency band frequency range adjustment district
12 ~ access area
121 ~ the second impedance matching adjustment districts
Embodiment
Hereby coordinate following graphic explanation detailed construction of the present invention and connection relationship thereof.
Refer to shown in figure mono-to figure two, for the structure chart of Uni-pole wide band antenna of the present invention, it is for being made on a printed circuit board (PCB) 1, this printed circuit board (PCB) 1 is formed by a dielectric substrates, include: an antenna field 11, this antenna field 11 comprises independently a radiating principal 111 and independently a frequency band frequency range adjustment district 112, this radiating principal 111 includes one first elongated end 1112, one second elongated end 1111 and a FD feed end 1113, the shape of this radiating principal 111 is close to " Y " font, wherein this first elongated end 1112 forms one first impedance matching adjustment district along first direction, and this first elongated end 1112 has at least one bending, this second elongated end engages with this first elongated end 1112 and forms a main radiation area along second direction, and the part of this second elongated end 1111 broadens gradually to second direction, this FD feed end 1113 is connected with this two elongated end (1111,1112) joint and extends along third direction, this FD feed end 1113 is more connected with a resistance (not shown), and the resistance value of this resistance is 50 Ω, certain those skilled in the art can change arbitrarily resistance value and carry out all whole different frequency bandwidths, above-mentioned this frequency band frequency range adjustment district 112 is arranged between this two elongated end (1111,1112) folded one-tenth region, one access area 12, is adjacent to this FD feed end 1113, one second impedance matching adjustment district (seeing figure tri-A) increases and decreases area with the region between this access area 12 and this antenna field contiguous to do an adjustment.The operation frequency range of the antenna structure of this unipolar broadband is 4GHz to 7GHz.
Refer to shown in figure tri-A to figure three C, band width adjustment schematic diagram is made for Uni-pole wide band antenna of the present invention utilizes first and second impedance matching of access area to adjust district and frequency band frequency range adjustment district, wherein figure tri-A is the antenna structure before adjustment, and wherein the first impedance matching adjustment district 1112 of this radiating principal 111 can carry out widening (as dashed region) to adjust frequency band frequency range; Simultaneously also can by the second impedance matching adjustment district 121(outside this access area 12 as dashed region, script three stairsteppings are revised as two stairsteppings) filled up, the adjust structure as figure tri-B can be formed, by changing the first impedance matching adjustment district 1112 and the second impedance matching adjustment district 121, the object of simple and easy adjustment frequency band frequency range can be reached.
Hold above-mentioned, moreover equally with figure tri-A for the antenna structure before adjustment, wherein the frequency band frequency range of triangle island block adjustment district 112 is removed, the adjust structure as figure tri-C can be formed, also can reach the object of simple and easy adjustment frequency band frequency range.
The above-mentioned wall-hanging Uni-pole wide band antenna be made on a printed circuit board (PCB) 1, this unipole antenna is printed with a microstrip line (Microstrip Line) in a side of a dielectric substrates, this microstrip line is a kind of ribbon conductor, and keep apart with a kind of dielectric medium between ground level, the direct ingress of air of its another side, only have a ground level as reference aspect, and using its one end as signal feed side.Grounding metal plane is not printed in the position that the another side of this dielectric substrates is corresponding to this microstrip line, and another side corresponding to non-aerial position can be divided into prints grounding metal plane (three ply board) or two kinds of different structures without metal (doubling plate).
The radiating principal 111 of described antenna field 11 by its one end as signal feed side 1113, the position that the other end of this microstrip line corresponds to beyond this access area 12 extends to two different directions, to form the radiating principal 111 of antenna, this radiating principal 111 extends to a predetermined resonant length, and the second elongated end 1111 length equals 1/4th length of designed frequency range frequency of utilization resonance, this radiating principal 111 can do aerial radiation band signal.The other direction of radiating principal 111 extends the impedance matching of corresponding adjustment antenna, makes the voltage standing wave ratio of antenna (VSWR) reach specification.The shape in this frequency band frequency range adjustment district 112 is close to triangle island block, and wherein a drift angle is adjacent to this second elongated end 1111, in order to increase the width of applying frequency.
Refer to shown in figure tetra-, for the voltage standing wave ratio of Uni-pole wide band antenna of the present invention and the curve chart of frequency, when the maximum of voltage standing wave ratio (VSWR) is set as 2, full frequency band at 4.2GHz to 7.3GHz can be gone out all in the below of the maximum of this voltage standing wave ratio (VSWR) by observable, the antenna representing the application have can effect for all band of radio communication, meet about Long Term Evolution (Long TermEvolution completely, LTE), WiFi(802.11a), ultra-wideband UWB (Ultra Wideband) and global intercommunication microwave access (Worldwide Interoperability for Microwave Access, the standard of the communications band of related electronic products WiMAX).
By the exposure of above-mentioned figure mono-to figure four, the antenna structure that the present invention is a kind of unipolar broadband can be understood, main purpose is for providing a kind of wall-hanging Uni-pole wide band antenna that can adjust easily, there is the advantage of large wideband, therefore be applicable in multiple electronic product, the antenna of the unipolar broadband of the application is directly shaped in circuit boards, has the advantage of low cost.
In sum, architectural feature of the present invention and each embodiment all disclose in detail, and fully can demonstrate case of the present invention all dark progressive implemented of composing in object and effect, has the value of industry, and be utilization not seen before on the market at present, according to Patent Law spirit described in, case of the present invention meets the important document of patent of invention completely.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art can make various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection range that all should belong to the claims in the present invention.
Claims (9)
1. an antenna structure for unipolar broadband, it is made on a printed circuit board (PCB), it is characterized in that, includes:
One antenna field, this antenna field comprises independently a radiating principal and independently a frequency band frequency range adjustment district, this radiating principal includes one first elongated end, one second elongated end and a FD feed end, and wherein this first elongated end forms one first impedance matching adjustment district along first direction; This second elongated end engages with this first elongated end and forms a main radiation area along second direction; This FD feed end is connected with this two elongated ends joint and extends along third direction; This frequency band frequency range adjustment district is arranged between this two elongated end folded one-tenth region;
One access area, is adjacent to this FD feed end; And
One second impedance matching adjustment district, increases and decreases area with the region between this access area and this antenna field contiguous and does an adjustment;
The shape in this frequency band frequency range adjustment district is close to triangle island block, and a drift angle is adjacent to this second elongated end.
2. the antenna structure of unipolar broadband according to claim 1, is characterized in that, this FD feed end is more connected with a resistance, and the resistance value of this resistance is 50 Ω.
3. the antenna structure of unipolar broadband according to claim 1, is characterized in that, the shape of this radiating principal is close to Y-shaped.
4. the antenna structure of unipolar broadband according to claim 1, is characterized in that, the operation frequency range of the antenna structure of this unipolar broadband is 4GHz to 7GHz.
5. the antenna structure of unipolar broadband according to claim 1, is characterized in that, this radiating principal is formed by a microstrip line.
6. the antenna structure of unipolar broadband according to claim 1, is characterized in that, this radiating principal extends to a predetermined resonant length, and this second elongated end length equals 1/4th length of designed frequency range frequency of utilization resonance.
7. the antenna structure of unipolar broadband according to claim 1, is characterized in that, this printed circuit board (PCB) is formed by a dielectric substrates.
8. the antenna structure of unipolar broadband according to claim 1, is characterized in that, the part of this second elongated end broadens gradually to second direction.
9. the antenna structure of unipolar broadband according to claim 1, is characterized in that, this first elongated end has at least one bending.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210230265.1A CN103531893B (en) | 2012-07-04 | 2012-07-04 | The antenna structure of unipolar broadband |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210230265.1A CN103531893B (en) | 2012-07-04 | 2012-07-04 | The antenna structure of unipolar broadband |
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| Publication Number | Publication Date |
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| CN103531893A CN103531893A (en) | 2014-01-22 |
| CN103531893B true CN103531893B (en) | 2015-08-12 |
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| CN201210230265.1A Expired - Fee Related CN103531893B (en) | 2012-07-04 | 2012-07-04 | The antenna structure of unipolar broadband |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108258408B (en) * | 2018-02-11 | 2024-06-21 | 上海健康医学院 | Antenna for communication |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6424304B1 (en) * | 2001-06-11 | 2002-07-23 | Acer Neweb Corp. | Antenna apparatus |
| CN102044755A (en) * | 2009-10-26 | 2011-05-04 | 华硕电脑股份有限公司 | Plane multi-frequency antenna |
| US8144072B2 (en) * | 2009-08-04 | 2012-03-27 | Auden Techno Corp. | Multi-band antenna for notebook computer |
| CN102422486A (en) * | 2009-03-11 | 2012-04-18 | 雷斯潘公司 | High gain metamaterial antenna device |
| CN202275947U (en) * | 2011-11-01 | 2012-06-13 | 哈尔滨工程大学 | Ultra-wideband antenna of integrated stepped impedance tuning bar |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI345335B (en) * | 2006-04-07 | 2011-07-11 | Arcadyan Technology Corp | Dual band inverted-f antenna |
| WO2011163139A1 (en) * | 2010-06-21 | 2011-12-29 | Rftelligent, Inc. | Wideband printed circuit board-printed antenna for radio frequency front end circuit |
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2012
- 2012-07-04 CN CN201210230265.1A patent/CN103531893B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6424304B1 (en) * | 2001-06-11 | 2002-07-23 | Acer Neweb Corp. | Antenna apparatus |
| CN102422486A (en) * | 2009-03-11 | 2012-04-18 | 雷斯潘公司 | High gain metamaterial antenna device |
| US8144072B2 (en) * | 2009-08-04 | 2012-03-27 | Auden Techno Corp. | Multi-band antenna for notebook computer |
| CN102044755A (en) * | 2009-10-26 | 2011-05-04 | 华硕电脑股份有限公司 | Plane multi-frequency antenna |
| CN202275947U (en) * | 2011-11-01 | 2012-06-13 | 哈尔滨工程大学 | Ultra-wideband antenna of integrated stepped impedance tuning bar |
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| CN103531893A (en) | 2014-01-22 |
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