CN202150545U - Multi-frequency antenna - Google Patents
Multi-frequency antenna Download PDFInfo
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- CN202150545U CN202150545U CN201120281843U CN201120281843U CN202150545U CN 202150545 U CN202150545 U CN 202150545U CN 201120281843 U CN201120281843 U CN 201120281843U CN 201120281843 U CN201120281843 U CN 201120281843U CN 202150545 U CN202150545 U CN 202150545U
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Abstract
The utility model discloses a multi-frequency antenna, comprising a grounding part, a monopolar antenna, short circuit lines and parasitic lines. The monopolar antenna possesses a first part and a second part, one end of the first part is connected with the second part, and the other end is equipped with an infeed part; the two ends of the second part are a first radiation end and a second radiation end respectively, and the frequency band scopes of the first radiation end and the second radiation end are not same with each other; the short circuit lines are located at one side of the first radiation end, the two ends of the short circuit lines are connected with one side of the infeed part and the grounding part respectively, and the middle of the short circuit lines shows a bending structure; the parasitic lines possess a third part connected with the other side of the infeed part and located at one side of the second radiation end, the third part possesses a third radiation end, and the frequency band scope of the third radiation end is not same as the frequency band scopes of the first and second radiation ends.
Description
Technical field
The utility model is particularly to a kind of multiple frequency antenna structure relevant for a kind of antenna.
Background technology
Along with the wireless telecommunications development of science and technology; Make the electronic product of wireless communication technique; For example mobile computer (Notebook Computer), mobile phone, personal digital assistant (Personal Digital Assistant; PDA) etc. the quantity and the kind of portable electronic devices grow with each passing day, and the antenna that is used for receiving and dispatching electromagnetic wave signal promptly becomes one of considerable assembly of wireless communication apparatus.
With the mobile computer is example, and for the demand in response to the user, mobile computer is is on the market all designed and developed towards lightening.Therefore, must relatively dwindle in order to the size of the antenna of transmitting/receiving wireless electromagnetic wave signal, or change its structure kenel, so that smoothly antenna is equipped in the inner confined space of mobile computer.
In general; Present antenna rough classification on the market is inverted-F antenna (Planar Inverted-F Antenna; PIFA), unipole antenna (Monopole Antenna) and loop antenna (Loop Antenna) etc., and the existing agreement that is applied to communication field has GSM850, GSM900, DCS1800, PCS1900, WCDMA2000 etc.Yet, though above-mentioned various antennas can be loaded into smoothly in the frivolous portable electronic devices of volume because antenna is in size reduction or after changing kenel and can't possess the ability of multifrequency transmitting-receiving.
At present by high-speed downloads packet access (High Speed Download Packet Access; HSDA); Being commonly called as the 3.5th generation (3.5G) mechanics of communication marches toward in the 4th generation (4G) mechanics of communication gradually; And Long Term Evolution (long term evolution LTE) is a new generation action wireless broad band technology that gets most of the attention in the market, and has become the one preferred technique of 4G communication field.Yet existing various types of antenna assemblies only possess the function of double frequency transmitting-receiving or three emission/reception electromagnetic wave signal frequently, and can't satisfy the bandwidth of 4G communication field now, still many restrictions in the use.
Summary of the invention
In view of above problem, the utility model is to provide a kind of multifrequency antenna, uses the ability that makes antenna possess the multifrequency transmitting-receiving, to satisfy the demand of 4G mechanics of communication now.
A kind of multifrequency antenna disclosed in the utility model comprises a grounding parts, a unipole antenna, a short circuit line and a parasitic circuit.Unipole antenna has one first position and one second position; One end at first position is connected in second position; And the other end at first position has a feeding portion; Two ends at second position are respectively first spoke side and second spoke side, and the frequency band range of the frequency band range of first spoke side and second spoke side is different.Short circuit line is positioned at a side of first spoke side, and two ends of short circuit line connect a side and the grounding parts of feeding portion respectively, and the centre of short-circuit line presents a warp architecture.Parasitic circuit has one the 3rd position; The 3rd position is connected in the opposite side of feeding portion and is positioned at a side of second spoke side; And the 3rd position has one the 3rd spoke side, and wherein the frequency band range of the frequency band range of the 3rd spoke side and first spoke side and second spoke side is different.
In one embodiment; The aforementioned parasitic circuit more comprises one the 4th position; The 4th position has one the 4th spoke side; And an end at the 4th position is connected in a side at the 3rd position, and the other end at the 4th position links to each other with grounding parts, wherein the frequency band range of the 4th spoke side and first spoke side, second spoke side, and the frequency band range of the 3rd spoke side different.
In one embodiment; The aforementioned parasitic circuit more comprises one the 5th position; The 5th position has one the 5th spoke side, and the 5th position is connected with this short circuit line, and between first spoke side and short circuit line; Wherein the frequency band range of the 5th spoke side and first spoke side, second spoke side, and the frequency band range of the 3rd spoke side different, the frequency band range of the 5th spoke side is identical with the frequency band range of the 4th spoke side.
In one embodiment, aforementioned multifrequency antenna comprises a substrate, and grounding parts, unipole antenna, short circuit line and parasitic circuit are formed on the substrate.
In one embodiment, aforementioned multifrequency antenna comprises a substrate, and the 3rd position and the 4th position of this grounding parts, this unipole antenna, this short circuit line and this parasitism circuit are formed on this substrate.
In one embodiment, aforementioned multifrequency antenna comprises a substrate, and the 3rd position of this grounding parts, this unipole antenna, this short circuit line and this parasitism circuit, the 4th position and the 5th position are formed on this substrate.
In one embodiment, aforementioned multifrequency antenna more comprises a cable, and cable has a heart yearn, and it is connected in the feeding portion of unipole antenna.
In one embodiment, aforementioned grounding parts is a sheet metal.
In one embodiment, aforementioned warp architecture is shaped as the U-shaped or the shape of a hoof.
A kind of multifrequency antenna disclosed in the utility model; Arrange setting by unipole antenna and parasitic circuit with adjacent mode; And at least three spoke sides of formation different frequency bands, make the antenna of the utility model possess the ability that multifrequency is received and dispatched, to satisfy the demand of 4G mechanics of communication now.
About the characteristic and real work of the utility model, conjunction with figs. is done the most preferred embodiment detailed description as follows now.
Description of drawings
Fig. 1 is the plane top view of multifrequency antenna of first embodiment of the utility model;
Fig. 2 is the plane top view of multifrequency antenna of second embodiment of the utility model;
Fig. 3 is the plane top view of multifrequency antenna of the 3rd embodiment of the utility model;
Fig. 4 be the utility model multifrequency antenna via the test after voltage standing wave ratio numeric distribution figure.
Wherein, Reference numeral:
100 multifrequency antennas, 110 substrates
120 grounding parts, 130 unipole antennas
132 second positions, 131 first positions
133 feeding portions, 134 first spoke sides
135 second spoke sides, 140 short circuit lines
150 parasitic circuits 151 the 3rd position
152 the 3rd spoke sides 153 the 4th position
154 the 4th spoke sides 155 the 5th position
156 the 5th spoke sides, 160 cables
161 heart yearns
Embodiment
Please refer to shown in Figure 1ly, it is the plane top view of multifrequency antenna of first embodiment of the utility model.It is inner that the multifrequency antenna 100 of present embodiment can be installed in a portable electronic devices (not shown), and mobile computer (Notebook Computer) for example is in order to receive the radio magnetic wave signal.Multifrequency antenna 100 comprises substrate 110, grounding parts 120, unipole antenna 130, short circuit line 140, parasitic circuit 150 and cable 160.Substrate 110 can be the FR4 glass mat, with carrier as multifrequency antenna 100, but not as limit.Grounding parts 120 is formed on the substrate 110, and grounding parts 120 can be a sheet metal, and its material for example is aluminum metal or copper metal, but does not exceed with disclosed kenel of present embodiment and material.
Unipole antenna 130, short circuit line 140 can be formed on the substrate 110 with parasitic circuit 150, and its material can be metal material.The end that unipole antenna 130 has first position 131 and 132, the first positions 131, second position is connected on second position 132, and makes unipole antenna 130 summarys constitute T shape structure, and the other end at first position 131 has feeding portion 133.
Please refer to shown in Figure 2ly, it is the plane top view of the multifrequency antenna of the utility model second embodiment.The multifrequency antenna 100 of present embodiment is similar with first embodiment; Except the 3rd position 151 and cable 160 of substrate 110, grounding parts 120, unipole antenna 130, short circuit line 140, parasitic circuit 150, the parasitic circuit 150 of second embodiment more comprises one the 4th position 153.
Wherein, the 3rd position 151 of substrate 110, grounding parts 120, unipole antenna 130, short circuit line 140, parasitic circuit 150 and the configuration relation of cable 160 and related description can be said with reference to first embodiment, so repeat no more at this.
In the present embodiment; The 4th position 153 has the 4th spoke side 154; And an end at the 4th position 153 is connected in a side at the 3rd position 151, and the other end at the 4th position 153 is connected with grounding parts 120, and the 4th position 153 can produce resonance mode with the 3rd spoke side 152 at the 3rd position 151.Wherein, the frequency band range of the 4th spoke side 154 and first spoke side 134, second spoke side 135 and the 3rd spoke side 152 radio magnetic wave signal that receives is different.
Please refer to shown in Figure 3ly, it is the plane top view of the multifrequency antenna of the utility model the 3rd embodiment.The multifrequency antenna 100 of present embodiment is similar with second embodiment; Except the 3rd position 151 and the 4th position 153 and cable 160 of substrate 110, grounding parts 120, unipole antenna 130, short circuit line 140, parasitic circuit 150, the parasitic circuit 150 of second embodiment more comprises one the 5th position 155.
Wherein, the 3rd position 151 of substrate 110, grounding parts 120, unipole antenna 130, short circuit line 140, parasitic circuit 150 and the configuration relation of the 4th position 153 and cable 160 and related description can be said with reference to second embodiment, so repeat no more at this.
In the present embodiment; One end at the 5th position 155 has the 5th spoke side 156; And the other end at the 5th position 155 is connected with short circuit line 140; And the 5th position 155 makes the 5th position 155 and first spoke side 134 be opposed facing relation between a side and short circuit line 140 of first spoke side 134.Wherein, The frequency band range of the 5th spoke side 156 and first spoke side 134, second spoke side 135 and the 3rd spoke side 152 radio magnetic wave signal that receives is different, and the 5th spoke side 156 is identical with the frequency band range of the 4th spoke side 154 radio magnetic wave signal that receives.
Please refer to shown in Figure 4, its be the utility model multifrequency antenna via the test after voltage standing wave ratio ((voltage standing wave ratio, VSWR) numeric distribution figure.In Fig. 4, the 1st is about 0.704GHz, and the 2nd is about 0.96GHz, and the 3rd is about 1.71GHz, and the 4th is about 2.17GHz, and the 5th is about 2.5GHz, and the 6th is about 2.7GHz.Wherein, The 1st for example is the frequency band range of first spoke side 134; The 2nd for example is the frequency band range of second spoke side 135, and the 3rd o'clock to the 4th for example is the frequency band range of the 3rd spoke side 152, and the 5th o'clock to the 6th for example is the frequency band range of the 4th spoke side 154 and the 5th spoke side 156.Learn by knowing among the figure; The multifrequency antenna of the utility model is by the combination of unipole antenna, short circuit line and parasitic circuit; But the frequency acceptance band scope proves thus that at the radio magnetic wave signal of 700MHz to 2700MHz the multifrequency antenna 100 of the utility model possesses the transmitting-receiving ability of multi-frequency radio signal really.
Please refer to shown in the 1st table, it is the antenna performance gain table of multifrequency antenna 100 when reality is tested of the utility model.
| Frequency (MHz) | Average gain value (dBi) | Frequency (MHz) | Average gain value (dBi) |
| ?704 | ?-3.15296 | ?1710 | ?-3.81293 |
| ?710 | ?-3.06417 | ?1750 | ?-3.07766 |
| ?716 | ?-3.18849 | ?1785 | ?-3.40854 |
| ?734 | ?-3.31915 | ?1805 | ?-3.39718 |
| ?740 | ?-3.27143 | ?1840 | ?-3.34971 |
| ?746 | ?-3.22914 | ?1850 | ?-3.31512 |
| 751 | -3.06999 | 1880 | -2.47471 |
| 756 | -2.85382 | 1910 | -2.23787 |
| 777 | -2.64252 | 1920 | -2.59495 |
| 782 | -2.83748 | 1930 | -2.67759 |
| 787 | -3.01844 | 1950 | -2.40649 |
| 791 | -3.12816 | 1960 | -2.44534 |
| 806 | -3.23015 | 1980 | -2.75232 |
| 821 | -3.09944 | 1990 | -2.72931 |
| 824 | -3.02686 | 2110 | -3.20575 |
| 832 | -2.93014 | 2140 | -3.46684 |
| 836 | -3.01489 | 2170 | -3.83319 |
| 847 | -3.24653 | 2300 | -3.66712 |
| 849 | -3.30002 | 2350 | -3.47987 |
| 862 | -3.96728 | 2400 | -3.28946 |
| 869 | -3.97523 | 2450 | -3.04784 |
| 880 | -3.67648 | 2500 | -2.85977 |
| 894 | -3.62842 | 2535 | -2.99545 |
| 900 | -3.46633 | 2570 | -3.29637 |
| 915 | -3.28655 | 2620 | -3.01054 |
| 925 | -3.39542 | 2655 | -2.59831 |
| 940 | -3.66774 | 2690 | -2.97944 |
| 960 | -3.86112 |
The 1st table
By provable in the 1st table, the multifrequency antenna 100 of the utility model can be under the operating position of different frequency scope, and its yield value is quite good and no problem.
The multifrequency antenna that embodiment provided of the utility model; It is provided with adjacent mode by unipole antenna and parasitic circuit; And be formed with at least three spoke sides of different frequency bands scope; Make the antenna of the utility model possess good multifrequency transmitting-receiving ability, can satisfy the demand of 4G mechanics of communication now fully.
Claims (15)
1. a multifrequency antenna is characterized in that, comprising:
One grounding parts;
One unipole antenna; This unipole antenna has one first position and one second position; One end at this first position is connected in this second position; And the other end at this first position has a feeding portion, and two ends at this second position are respectively one first spoke side and one second spoke side, and the frequency band range of the frequency band range of this first spoke side and this second spoke side is different;
One short circuit line is positioned at a side of this first spoke side, and two ends of this short circuit line connect a side and this grounding parts of this feeding portion respectively, and the centre of this short circuit line presents a warp architecture; And
One parasitic circuit; This parasitism circuit has one the 3rd position; The 3rd position is connected in the opposite side of this feeding portion and is positioned at a side of this second spoke side; And the 3rd position has one the 3rd spoke side, and wherein the frequency band range of the frequency band range of the 3rd spoke side and this first spoke side and this second spoke side is different.
2. multifrequency antenna as claimed in claim 1; It is characterized in that; This parasitism circuit more comprises one the 4th position, and the 4th position has one the 4th spoke side, and an end at the 4th position is connected in a side at the 3rd position; The other end at the 4th position links to each other with this grounding parts, wherein the frequency band range of the 4th spoke side and this first spoke side, this second spoke side, and the frequency band range of the 3rd spoke side different.
3. multifrequency antenna as claimed in claim 2 is characterized in that, more comprises a substrate, and the 3rd position and the 4th position of this grounding parts, this unipole antenna, this short circuit line and this parasitism circuit are formed on this substrate.
4. multifrequency antenna as claimed in claim 2 is characterized in that multifrequency antenna more comprises a cable, and this cable has a heart yearn, and it is connected in this feeding portion of this unipole antenna.
5. frequency antenna as claimed in claim 2 is characterized in that, this grounding parts is a sheet metal.
6. multifrequency antenna as claimed in claim 2 is characterized in that, this warp architecture be shaped as the U-shaped or the shape of a hoof.
7. multifrequency antenna as claimed in claim 2; It is characterized in that; This parasitism circuit more comprises one the 5th position; One end at the 5th position has one the 5th spoke side, and the other end at the 5th position is connected with this short circuit line, and the 5th position is between a side and this short circuit line of this first spoke side; Wherein the frequency band range of the 5th spoke side and this first spoke side, this second spoke side, and the frequency band range of the 3rd spoke side different, the frequency band range of the 5th spoke side is identical with the frequency band range of the 4th spoke side.
8. multifrequency antenna as claimed in claim 7 is characterized in that, more comprises a substrate, and the 3rd position of this grounding parts, this unipole antenna, this short circuit line and this parasitism circuit, the 4th position and the 5th position are formed on this substrate.
9. multifrequency antenna as claimed in claim 7 is characterized in that multifrequency antenna more comprises a cable, and this cable has a heart yearn, and it is connected in this feeding portion of this unipole antenna.
10. frequency antenna as claimed in claim 7 is characterized in that, this grounding parts is a sheet metal.
11. multifrequency antenna as claimed in claim 7 is characterized in that, this warp architecture be shaped as the U-shaped or the shape of a hoof.
12. multifrequency antenna as claimed in claim 1 is characterized in that, more comprises a substrate, this grounding parts, this unipole antenna, this short circuit line and this parasitism circuit are formed on this substrate.
13. multifrequency antenna as claimed in claim 1 is characterized in that, multifrequency antenna more comprises a cable, and this cable has a heart yearn, and it is connected in this feeding portion of this unipole antenna.
14. frequency antenna as claimed in claim 1 is characterized in that, this grounding parts is a sheet metal.
15. multifrequency antenna as claimed in claim 1 is characterized in that, this warp architecture be shaped as the U-shaped or the shape of a hoof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120281843U CN202150545U (en) | 2011-08-02 | 2011-08-02 | Multi-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120281843U CN202150545U (en) | 2011-08-02 | 2011-08-02 | Multi-frequency antenna |
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| Publication Number | Publication Date |
|---|---|
| CN202150545U true CN202150545U (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201120281843U Expired - Fee Related CN202150545U (en) | 2011-08-02 | 2011-08-02 | Multi-frequency antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI509878B (en) * | 2012-11-07 | 2015-11-21 | Hon Hai Prec Ind Co Ltd | Multi-band antenna |
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2011
- 2011-08-02 CN CN201120281843U patent/CN202150545U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI509878B (en) * | 2012-11-07 | 2015-11-21 | Hon Hai Prec Ind Co Ltd | Multi-band antenna |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120222 Termination date: 20160802 |
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| CF01 | Termination of patent right due to non-payment of annual fee |