CN209056592U - A kind of sleeve antenna of omnidirectional radiation - Google Patents
A kind of sleeve antenna of omnidirectional radiation Download PDFInfo
- Publication number
- CN209056592U CN209056592U CN201822071540.5U CN201822071540U CN209056592U CN 209056592 U CN209056592 U CN 209056592U CN 201822071540 U CN201822071540 U CN 201822071540U CN 209056592 U CN209056592 U CN 209056592U
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- Prior art keywords
- sleeve
- high frequency
- antenna
- coaxial line
- matching
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Abstract
A kind of sleeve antenna of omnidirectional radiation, the sleeve antenna includes: pcb board, coaxial line, radiation medium, high frequency choke sleeve, low frequency chokes sleeve and matching sleeve, high frequency choke sleeve and the opening of low frequency chokes sleeve are towards identical, it is opposite with the opening of high frequency choke sleeve direction to match sleeve, coaxial line is connect with pcb board and the radiation medium simultaneously, high frequency choke sleeve has gap with matching between sleeve, radiation medium extends to matching sleeve from high frequency choke sleeve.Sleeve antenna with above structure, not only ensure that the omni-directional of the directional diagram of height frequency range, but also not need setting CPW transmission line, therefore appearance the case where can effectively avoid jitter.
Description
Technical field
The utility model relates to sleeve antenna more particularly to a kind of sleeve antennas of omnidirectional radiation.
Background technique
Currently, the direction of radio communication equipment towards multifunction, miniaturization and ultra wide band is developed, it is related to antenna
Wideband impedance match technology, the loading technique of antenna, the reactance compensation technique of antenna, optimization design of miniature antenna shape etc. first
Into technology and technique.
Chinese patent CN207116684U discloses a kind of telescopic LTE broad frequency micro-band omnidirectional antenna, includes pcb board,
Pcb board is equipped with RF coaxial line and antenna radiator, and the core layer of RF coaxial line is connect with antenna radiator, RF coaxial
High frequency choke sleeve and low frequency chokes sleeve are equipped between line and antenna radiator, pcb board further includes having and high frequency choke set
The opposite matching sleeve of cylinder opening direction.Above structure advantageously ensures that the directional diagram omni-directional of height frequency range, passes through setting
It can be realized with sleeve and improve antenna impedance bandwidth.
However, due to above-mentioned antenna by radiator be arranged in upper end, it is therefore desirable to matching sleeve and radiator CPW transmit
Line causes the assembly technology for matching sleeve complicated, and when antenna is in the poor environment of stability, CPW transmission line holds
Easily there is a phenomenon where bendings, cause jitter.
Utility model content
Technical solutions of the utility model provide a kind of omnidirectional radiation for above situation to solve the above-mentioned problems
Sleeve antenna, the sleeve antenna include: pcb board, coaxial line, radiation medium, high frequency choke sleeve, low frequency chokes sleeve and
Match sleeve, the high frequency choke sleeve and the opening of the low frequency chokes sleeve towards identical, the matching sleeve with it is described
The opening of high frequency choke sleeve is towards on the contrary, the coaxial line is connect with the pcb board and the radiation medium simultaneously, the height
Frequency chokes sleeve has gap with described match between sleeve, the radiation medium extends to described from the high frequency choke sleeve
Match sleeve.
Further, the inside of the high frequency choke sleeve has the first quoit, and the inside of the low frequency chokes sleeve has
There is the second quoit, the inside of the matching sleeve has third quoit, and first quoit is in the high frequency choke set
Short circuit, second quoit shape between the low frequency chokes sleeve and the coaxial line are formed between cylinder and the coaxial line
At short circuit, the third quoit forms short circuit between the matching sleeve and the coaxial line.
Further, the pcb board and the coaxial line all extend to the matching sleeve from the high frequency choke sleeve.
Further, the length of the high frequency choke sleeve is the quarter-wave of high frequency centre frequency, and the low frequency is gripped
The length for flowing sleeve is the quarter-wave of low frequency centre frequency.
Further, there is feeding point and oscillator, the feeding point is connect with the pcb board, the vibration on the coaxial line
It is sub to be connect with the radiation medium.
Further, the radiation medium includes: the first radiator, the second radiator and third radiator, first spoke
There is gap between beam and second radiator, also there is seam between second radiator and the third radiator
Gap.
After adopting the above technical scheme, the effect of the utility model is.
Detailed description of the invention
Fig. 1 be the utility model relates to sleeve antenna schematic diagram；
Fig. 2 be the utility model relates to sleeve antenna sectional view；
Fig. 3 be the utility model relates to partial enlarged view of the sleeve antenna at location A.
Specific embodiment
Technical solutions of the utility model are further described below by embodiment:
The utility model provides a kind of sleeve antenna of omnidirectional radiation, and referring to figs. 1 and 2, sleeve antenna includes:
Pcb board 1, coaxial line 2, radiation medium 3, high frequency choke sleeve 4, low frequency chokes sleeve 5 and matching sleeve 6, high frequency choke sleeve 4
With the opening of low frequency chokes sleeve 5 towards identical, the opening of matching sleeve 6 and high frequency choke sleeve 4 is towards on the contrary, coaxial line 2
Connect simultaneously with pcb board 1 and radiation medium 3, high frequency choke sleeve 4 with match between sleeve 6 with gap, radiation medium 3 from
High frequency choke sleeve 4 extends to matching sleeve 6.When above-mentioned sleeve antenna works, high frequency choke sleeve 4 and low frequency chokes sleeve 5
It can guarantee the omni-directional of the directional diagram of height frequency range, antenna impedance bandwidth can be improved in matching sleeve 6.In addition, practical new at this
In type, since radiation medium 3 extends to matching sleeve 6 from high frequency choke sleeve 4, and directly it connect, does not need with coaxial line 2
The case where CPW transmission line is set, therefore can effectively avoid jitter appearance, but also S parameter in bandwidth can be optimized.
The band limits of above-mentioned sleeve antenna meets 230 ~ 500MHz, and entire gain promotes 0.4dBi with respect to traditional scheme.
Specifically, the inside of high frequency choke sleeve 4 has the first quoit 41, and the inside of low frequency chokes sleeve 5 has the
Two quoits 51, matching sleeve 6 inside have third quoit 61, the first quoit 41 high frequency choke sleeve 4 with it is coaxial
Short circuit is formed between line 2, the second quoit 51 forms short circuit, third quoit 61 between low frequency chokes sleeve 5 and coaxial line 2
Short circuit is formed between matching sleeve 6 and coaxial line 2.By above-mentioned setting, the impedance of sleeve antenna can be further improved, increase
The anti-interference ability of strong sleeve antenna.
Specifically, pcb board 1 and coaxial line 2 all extend to matching sleeve 6 from high frequency choke sleeve 4.One side of such setting
Face is conducive to the miniaturization of sleeve antenna, and reverse feeding on the other hand may be implemented, and shortens current path, reduces energy loss.
Specifically, the length of high frequency choke sleeve 4 is the quarter-wave of high frequency centre frequency, low frequency chokes sleeve 5
Length be low frequency centre frequency quarter-wave.Above-mentioned setting is so that containment low-and high-frequency current direction RF coaxial line 2
The effect of extexine is good
Specifically, in conjunction with shown in Fig. 2 and Fig. 3, there is feeding point 21 and oscillator 22, feeding point 21 and pcb board on coaxial line 2
Connection, oscillator 22 are connect with radiation medium 3.The signal that can receive pcb board by feeding point 21 can will be believed by oscillator 22
It number is transmitted on radiation medium 3.
Specifically, with continued reference to FIG. 3, radiation medium 3 includes: the first radiator 31, the second radiator 32 and third spoke
Beam 33, has a gap 34 between the first radiator 31 and the second radiator 32, the second radiator 32 and third radiator 33 it
Between also have gap 34.Above-mentioned setting is of coupled connections so that passing through gap 34 between each radiator, is conducive to widen radio-frequency head
The impedance bandwidth divided.
More specifically, the first radiator 31 from matching sleeve 6 internal stretch to outside, the second radiator 32 is located at high frequency
Chokes sleeve 4 with match in gap between sleeve 6, third radiator 33 is from the internal stretch of high frequency choke sleeve 4 to outside.
This set can be convenient the position that user adjusts each radiator, guarantee the omni-directional of each frequency range directional diagram.
As it can be seen that the sleeve antenna with above structure, not only ensure that the omni-directional of the directional diagram of height frequency range, but also not
The case where needing to be arranged CPW transmission line, therefore capable of effectively avoiding jitter appearance.
It is emphasized that term " first ", " second ", " third " in the present invention are used for description purposes only, and cannot
It is interpreted as indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic.Define as a result, " the
One ", " second ", " third " feature can explicitly or implicitly include at least one of the features.In description of the invention,
The meaning of " plurality " is at least two, such as two, three etc., unless otherwise specifically defined.In the embodiment of the present invention
The directional instruction (such as up, down, left, right, before and after ...) of institute is only used for explaining a certain particular pose (as shown in the picture)
Under relative positional relationship, motion conditions etc. between each component, if the particular pose changes, directionality instruction
Also it correspondingly changes correspondingly.In addition, term " includes " and " having " and their any deformations, it is intended that cover non-exclusive
Include.Such as contain a series of steps or units process, method, system, product or equipment be not limited to it is listed
Step or unit, but optionally further comprising the step of not listing or unit, or optionally further comprising for these processes, side
The intrinsic other step or units of method, product or equipment.
Embodiment described above, only preferred embodiments of the invention, be not to limit practical range of the invention, therefore it is all according to
The equivalent change or modification that structure, feature and principle described in scope of the present invention patent is done, should be included in the present invention
In patent claim.
Claims (6)
1. a kind of sleeve antenna of omnidirectional radiation, the sleeve antenna includes: pcb board, coaxial line, radiation medium, high frequency choke
Sleeve, low frequency chokes sleeve and matching sleeve, the high frequency choke sleeve and the opening of the low frequency chokes sleeve towards identical,
The opening of the matching sleeve and high frequency choke sleeve direction on the contrary, the coaxial line simultaneously with the pcb board and described
Radiation medium connection, it is characterised in that: the high frequency choke sleeve has gap with described match between sleeve, the radiation is situated between
Matter extends to the matching sleeve from the high frequency choke sleeve.
2. the sleeve antenna of omnidirectional radiation according to claim 1, it is characterised in that: the inside of the high frequency choke sleeve
With the first quoit, the inside of the low frequency chokes sleeve has the second quoit, and the inside of the matching sleeve has the
Three quoits, first quoit form short circuit, second gold medal between the high frequency choke sleeve and the coaxial line
Belong to circle and form short circuit between the low frequency chokes sleeve and the coaxial line, the third quoit in the matching sleeve and
Short circuit is formed between the coaxial line.
3. the sleeve antenna of omnidirectional radiation according to claim 1, it is characterised in that: the pcb board and the coaxial line
All the matching sleeve is extended to from the high frequency choke sleeve.
4. the sleeve antenna of omnidirectional radiation according to claim 1, it is characterised in that: the length of the high frequency choke sleeve
For the quarter-wave of high frequency centre frequency, the length of the low frequency chokes sleeve is the quarter-wave of low frequency centre frequency
It is long.
5. the sleeve antenna of omnidirectional radiation according to claim 1, it is characterised in that: have feeding point on the coaxial line
And oscillator, the feeding point are connect with the pcb board, the oscillator is connect with the radiation medium.
6. according to the sleeve antenna of omnidirectional radiation described in claim 1, it is characterised in that: the radiation medium includes: the first spoke
Beam, the second radiator and third radiator, have a gap between first radiator and second radiator, and described the
Also there is gap between two radiators and the third radiator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822071540.5U CN209056592U (en) | 2018-12-11 | 2018-12-11 | A kind of sleeve antenna of omnidirectional radiation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822071540.5U CN209056592U (en) | 2018-12-11 | 2018-12-11 | A kind of sleeve antenna of omnidirectional radiation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209056592U true CN209056592U (en) | 2019-07-02 |
Family
ID=67054984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822071540.5U Expired - Fee Related CN209056592U (en) | 2018-12-11 | 2018-12-11 | A kind of sleeve antenna of omnidirectional radiation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209056592U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114094320A (en) * | 2021-11-24 | 2022-02-25 | 上海海积信息科技股份有限公司 | GNSS antenna and combined antenna |
-
2018
- 2018-12-11 CN CN201822071540.5U patent/CN209056592U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114094320A (en) * | 2021-11-24 | 2022-02-25 | 上海海积信息科技股份有限公司 | GNSS antenna and combined antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190702 Termination date: 20191211 |