CN2924817Y - Spiral antenna - Google Patents
Spiral antenna Download PDFInfo
- Publication number
- CN2924817Y CN2924817Y CN 200620068893 CN200620068893U CN2924817Y CN 2924817 Y CN2924817 Y CN 2924817Y CN 200620068893 CN200620068893 CN 200620068893 CN 200620068893 U CN200620068893 U CN 200620068893U CN 2924817 Y CN2924817 Y CN 2924817Y
- Authority
- CN
- China
- Prior art keywords
- helicon
- straight line
- antenna
- line portion
- axis
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a helical antenna, the antenna includes a first helicon that can decide the first working frequency, a linear oscillator that can decide the second working frequency, a second helicon that can decide the third working frequency and a linear part which connects the first helicon and the second helicon, the first helicon and the second helicon are connected with their own one ends through the linear part, the axis lines of the first helicon and the second helicon are the same straight line, and the straight line of the linear part which connects the axis line of the first helicon and the second helicon is also the same straight line with the axis line, the linear oscillator has the same axis line, an inner core line of a feed point which is close to one end of the linear oscillator is electrically connected with one end of the first helicon which is far from the second helicon, the linear oscillator is penetrated into the first helicon along the axis line of the first helicon, and the axial length of the first helicon is longer than the linear oscillator.
Description
[technical field]
The utility model relates to a kind of helical antenna, particularly relates to the three-frequency antenna that a kind of wire oscillator combines and realized with helicon.
[background technology]
It is very general in actual applications that helical antenna is used for wireless communication technology, and this technology will be gradually improved.
For example relevant patent, the granted patent of China's Mainland, the patent No. is 95224302.4 the soft antenna of spiral, this antenna is used for the wireless hand-held phone, the soft antenna of this spiral comprises a Metal Substrate pipe and a telescopic soft pipe, the rear end of soft pipe have one with the metal connecting piece of Metal Substrate inside pipe wall sliding contact, soft pipe is made up of tube core, helical coil and the insulating sleeve of insulation, helical coil is outside tube core, and the end that insulating sleeve is enclosed within helical coil links to each other with metal connecting piece.The helical coil of the soft antenna of this spiral can be selected the different coiling numbers of turn for use, can change the resonance cycle of antenna, thereby improves the sensitivity of receiver, changes the length that soft pipe pulls out and also can play the effect of adjusting the resonance cycle.
With above-mentioned antenna is the helical antenna of representative, its common feature is that work only is a frequency range, popularizing along with Wireless Telecom Equipment in the whole world, when passing different system or having, the user use Wireless Telecom Equipment to communicate in the geographic area of a system of surpassing, wish that this Wireless Telecom Equipment can not be subjected to the restriction of a system, and can be used for surpassing a system, just wish on different frequency bands, to carry out the communication of Wireless Telecom Equipment.A plurality of antennas of different frequency bands are used for same Wireless Telecom Equipment and may bring inconvenience concerning the user, and WLAN (wireless local area network) and Bluetooth technology that Wireless Telecom Equipment uses are at present realized under high frequency, thereby the trend to high frequency and microminiaturization of Wireless Telecom Equipment is obvious day by day.So, it is desirable use single antenna structure to be operated in surpassing a working frequency range, and the antenna technology that development is adapted has also proposed requirement.
In order to satisfy above-mentioned requirements, people have developed the double-spiral structure antenna again, and this structure has adopted helical structure heterogeneous to make double frequency.It approximately is 1/3 of a conventional whip antenna length, and gain is identical with conventional whip antenna.It has certain requirement to the apparent size of antenna, promptly enough big external diameter and enough antenna longitudinal lengths.So, single antenna structure just can satisfy the demand that can be chosen in two different frequency work.
Helical antenna mentioned above, it is having certain progress aspect gain of antenna or the size.Yet, these antenna or be operated in single frequency, or be operated in alternative two frequencies.Along with the raising of user's request, be necessary to provide a kind of single antenna structure just can satisfy three frequency helical antennas of three operating frequencies in fact, and this antenna satisfy the characteristics that directivity is good, gain is good.
[summary of the invention]
In view of above problems of the prior art, the purpose of this utility model is to provide a kind of helical antenna, this antenna is combined with helicon by the wire oscillator and is realized, this antenna applications is in WAP (wireless access point), and this antenna can be realized being chosen in three operating frequency work than prior art by the single antenna structure.
For reaching above-mentioned purpose, the utility model provides a kind of helical antenna, this antenna includes first helicon that determines first operating frequency, one determines the wire oscillator of second operating frequency, one determines second helicon of the 3rd operating frequency and connects this first helicon and the straight line portion of this second helicon, this first helicon is connected its end separately by this straight line portion with this second helicon, the axis of the axis of this first helicon and this second helicon is same straight line, and the straight line that connects the straight line portion place of the axis of this first helicon and second helicon is same straight line with this axis also, this wire oscillator is a coaxial line, the internal core wire of feedback contact and the electrically connecting of this first helicon of close one end on this wire oscillator away from second helicon, one end, and this wire oscillator penetrates this first helicon along this first helicon axial location, and the axial length of this first helicon is greater than the length of this wire oscillator.
Internal core wire and the microwave receiving on the electronic equipment/transmitting element near an end of presenting contact on this wire oscillator electrically connect, and the screen at this place and the earth element on the electronic equipment electrically connect.
Especially, the mode of its exterior shield layer of ring cutting and two insulating barriers is adopted in this wire oscillator coaxial line and this first helicon junction, and the corresponding position of this first helicon is punctured into corresponding ring-type, and with its electric connection.
Especially, this first helicon is vertical with this straight line portion with the straight line portion coupling part.
Especially, this second helicon is vertical with this straight line portion with the straight line portion coupling part.
Compared with prior art, the mode that the utility model antenna has adopted the wire oscillator to combine with helicon possesses single antenna structure and just can satisfy three characteristics that can select operating frequency.And the utility model adopts the normal direction helical structure, has good directivity, and the gain that the utility model is worked under each operating frequency is also good.
For making the purpose of this utility model, structural feature and function thereof there are further understanding, cooperate diagram to be described in detail as follows now:
[description of drawings]
Fig. 1 illustrates the structural representation into a preferred embodiment of a kind of helical antenna of the present utility model.
Fig. 2 illustrates and is the voltage standing wave ratio of a preferred embodiment of a kind of helical antenna of the present utility model (VoltageStanding Wave Ratio, VSWR) test schematic diagram.
[embodiment]
See also Fig. 1, Fig. 1 illustrates the structural representation into a preferred embodiment of a kind of helical antenna of the present utility model.The utility model provides a kind of helical antenna, this antenna includes first helicon 1 that determines first operating frequency, one determines the wire oscillator 2 of second operating frequency, one determines second helicon 3 of the 3rd operating frequency and connects this first helicon and the straight line portion 4 of this second helicon, this first helicon 1 is connected its end separately by this straight line portion 4 with this second helicon 3, the axis of the axis of this first helicon 1 and this second helicon 3 is same straight line, and the straight line that connects straight line portion 4 places of the axis of this first helicon 1 and second helicon 3 is same straight line with this axis also, this wire oscillator is a coaxial line, the internal core wire of feedback contact 20 and the electrically connecting of this first helicon 1 of close one end on this wire oscillator 2 away from second helicon, 3 one ends, and this wire oscillator 2 penetrates this first helicon 1 along this first helicon, 1 axial location, and the axial length of this first helicon 1 is greater than the length of this wire oscillator 2.
Especially, the mode of its exterior shield layer of ring cutting and two insulating barriers is adopted in these wire oscillator 2 coaxial lines and this first helicon, 1 junction, and the corresponding position 11 of this first helicon 1 is punctured into corresponding ring-type, and with its electric connection.
Especially, this first helicon 1 is vertical with this straight line portion with straight line portion 4 coupling parts 10.
Especially, this second helicon 3 is vertical with this straight line portion with straight line portion 4 coupling parts 30.
Internal core wire (not shown) and the microwave receiving/transmitting element (not shown) on the electronic equipment near an end of presenting contact on this wire oscillator electrically connect, and the earth element (not shown) on screen at this place (not shown) and the electronic equipment electrically connects.
In present embodiment, this first helicon 1 is identical with each coil outer diameter in this second helicon 3 and respectively the pitch between circle is equal.
In present embodiment, this first helicon 1, its axial length are 16.5mm, and external diameter is 2.9mm, and pitch is 1.5mm, and the number of turns is 11.75, in order to realize this first operating frequency 2.4GHz-2.5GHz;
In present embodiment, wire oscillator 2 coaxial inner conductors, length 11mm is in order to realize this second operating frequency 5.15GHz-5.35GHz;
In present embodiment, second helicon 3, its axial length are 10.5mm, and external diameter is 1.7mm, and pitch is 2.1mm, and the number of turns is 5.25, in order to realize this first operating frequency 5.47GHz-5.85GHz;
In present embodiment, the straight line portion 4 that connects first helicon 1 and second helicon 3 is regulated between 3-6mm according to different adaptive needs.
See also Fig. 2, Fig. 2 illustrates and is the voltage standing wave ratio of a preferred embodiment of a kind of antenna of the present utility model (Voltage Standing Wave Ratio, VSWR) test schematic diagram.By the test result of this figure as can be seen, when a preferred embodiment of a kind of antenna of the present utility model is operated in first operating frequency, fundamental frequency is 2.45GHz, and when frequency range was 2.4GHz-2.5GHz, the voltage standing wave ratio VSWR of this antenna was not more than 2; When a preferred embodiment of a kind of antenna of the present utility model is operated in second operating frequency, fundamental frequency is 5.25GHz, and when frequency range was 5.15GHz-5.35GHz, the voltage standing wave ratio VSWR of this antenna was not more than 2; One preferred embodiment of a kind of antenna of the present utility model is operated in the 3rd operating frequency, and fundamental frequency is 5.66GHz, and when frequency range was 5.47GHz-5.85GHz, the voltage standing wave ratio VSWR of this antenna was not more than 2; So satisfy antenna in its three working frequency range scopes, voltage standing wave ratio otherwise, make the utility model antenna possess good gain greater than 2.0 requirement.
Below only for making a preferred embodiment of the utility model helical antenna, can be under the situation that does not change its operating frequency, adjust coil pitch, outer gauge structure, coil turn, diameter, length, quantity and screw diameter of two helicons wherein or the like according to actual needs; Coil pitch, outer gauge structure, coil turn, diameter, length, quantity and the screw diameter or the like of perhaps adjusting two helicons wherein according to actual needs are to adapt to first operating frequency, second operating frequency and the 3rd operating frequency of setting according to actual needs.
Compared with prior art, the mode that the utility model antenna has adopted the wire oscillator to combine with helicon possesses single antenna structure and just can satisfy three characteristics that can select operating frequency.And the utility model adopts the normal direction helical structure, has good directivity, voltage standing wave ratio (Voltage Standing Wave Ratio by the utility model one preferred embodiment, VSWR) test schematic diagram as can be seen, the gain that the utility model is worked under each operating frequency is also good.
Claims (4)
1, a kind of helical antenna, it is characterized in that, this antenna includes first helicon that determines first operating frequency, one determines the wire oscillator of second operating frequency, one determines second helicon of the 3rd operating frequency and connects this first helicon and the straight line portion of this second helicon, this first helicon is connected its end separately by this straight line portion with this second helicon, the axis of the axis of this first helicon and this second helicon is same straight line, and the straight line that connects the straight line portion place of the axis of this first helicon and second helicon is same straight line with this axis also, this wire oscillator is a coaxial line, the internal core wire of feedback contact and the electrically connecting of this first helicon of close one end on this wire oscillator away from second helicon, one end, and this wire oscillator penetrates this first helicon along this first helicon axial location, and the axial length of this first helicon is greater than the length of this wire oscillator.
2, a kind of helical antenna as claimed in claim 1, it is characterized in that, the mode of its exterior shield layer of ring cutting and two insulating barriers is adopted in this wire oscillator coaxial line and this first helicon junction, and the corresponding position of this first helicon is punctured into corresponding ring-type, and with its electric connection.
3, a kind of helical antenna as claimed in claim 1 is characterized in that, this first helicon is vertical with this straight line portion with the straight line portion coupling part.
4, a kind of helical antenna as claimed in claim 1 is characterized in that, this second helicon is vertical with this straight line portion with the straight line portion coupling part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068893 CN2924817Y (en) | 2006-01-23 | 2006-01-23 | Spiral antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620068893 CN2924817Y (en) | 2006-01-23 | 2006-01-23 | Spiral antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2924817Y true CN2924817Y (en) | 2007-07-18 |
Family
ID=38261245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620068893 Expired - Fee Related CN2924817Y (en) | 2006-01-23 | 2006-01-23 | Spiral antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2924817Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011011923A1 (en) * | 2009-07-31 | 2011-02-03 | 海能达通信股份有限公司 | Dual frequency antenna |
| CN102299401A (en) * | 2011-05-25 | 2011-12-28 | 北京理工大学 | Signal interference antenna device |
| CN103117448A (en) * | 2011-11-16 | 2013-05-22 | 卜放 | Composite helical antenna |
| CN111585017A (en) * | 2020-05-15 | 2020-08-25 | 广东工业大学 | Normal mode helical antenna |
-
2006
- 2006-01-23 CN CN 200620068893 patent/CN2924817Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011011923A1 (en) * | 2009-07-31 | 2011-02-03 | 海能达通信股份有限公司 | Dual frequency antenna |
| CN102299401A (en) * | 2011-05-25 | 2011-12-28 | 北京理工大学 | Signal interference antenna device |
| CN102299401B (en) * | 2011-05-25 | 2013-07-03 | 北京理工大学 | Signal interference antenna device |
| CN103117448A (en) * | 2011-11-16 | 2013-05-22 | 卜放 | Composite helical antenna |
| CN111585017A (en) * | 2020-05-15 | 2020-08-25 | 广东工业大学 | Normal mode helical antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070718 |