CN1979947A - Single-pole antenna - Google Patents
Single-pole antenna Download PDFInfo
- Publication number
- CN1979947A CN1979947A CN 200510122792 CN200510122792A CN1979947A CN 1979947 A CN1979947 A CN 1979947A CN 200510122792 CN200510122792 CN 200510122792 CN 200510122792 A CN200510122792 A CN 200510122792A CN 1979947 A CN1979947 A CN 1979947A
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- CN
- China
- Prior art keywords
- radiation
- department
- grounding parts
- unipole antenna
- insulated substrate
- 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.)
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Abstract
The unipole antenna includes insulated base plate, radiation part, grounding part, and feed line. Being in inverse trapezoid, the radiation part is attached to the insulated base plate. There is trapezoidal notch on winder end of the insulated base plate, and there is 'U' shaped slot on narrower end. Being as a rectangular metal plate, the grounding part includes opening in middle, and rectangular channels on two sides of the opening. Inner conductor and outer conductor are setup on feed line. Passing through the opening on the grounding part, the inner conductor is connected to the radiation part electrically, and outer conductor is connected to sheet metal of the grounding part electrically. The disclosed antenna can increase bandwidth effectively, and possesses preferred impedance matching.
Description
[technical field]
The present invention is a kind of antenna, relates in particular to a kind of unipole antenna that is used on the electronic installation.
[background technology]
For the antenna on being applied to Digital Television, its acceptance/transmit and reliability are very important, and require antenna volume the smaller the better.Compared to prior art, can be with reference to No. the 239677th, TaiWan, China patent announcement, it discloses a kind of wideband unipole antenna, comprises ground plane, roughly is positioned at the radiation sheet metal and the feed-in coaxial transmission line at the top edges place of this ground plane.Wherein ground plane shape is roughly a rectangle, has a top edges and a lower edge with respect to this top edges, and have an earth point and a short dot near the top edges of this ground plane.Radiation sheet metal comprises the first sub-sheet metal, the second sub-sheet metal and a short circuit metal arm.The feed-in coaxial transmission line comprises center conductor and outer earthing conductor.But this antenna volume is bigger.
Existing multifrequency antenna 1 ' as shown in Figure 1 in addition, it comprises insulated substrate 10 ', first grounding parts 40 ', in low frequency portion 20 ' that forms on the insulated substrate surface and radio-frequency head 30 ', be located at resonant cavity 60 ' and feeder line 70 ' between first grounding parts 40 ' and the radio-frequency head 30 '.Wherein, described feeder line 70 ' is made up of inner sandwich layer 71 ' and braid 72 ', and inner sandwich layer 71 ' and braid 72 ' are welded in the radio-frequency head 30 ' and first grounding parts 40 ' respectively.Yet this antenna low frequency portion is owing to be a complete prismatoid, and its impedance matching is short of to some extent.Therefore, be necessary to provide a kind of modified model antenna to overcome the defective of prior art.
[summary of the invention]
The object of the present invention is to provide the unipole antenna that a kind of volume is less and frequency range is enough big.
For achieving the above object, the present invention adopts following technical scheme: a kind of antenna comprises insulated substrate, Department of Radiation, grounding parts and feeder line.Wherein Department of Radiation depends on described insulated substrate surface, is the lengthwise trapezoidal shape, and an end of broad hollows out mid portion; Grounding parts is substantially perpendicular to described insulated substrate; Feeder line has the inner wire and the outer conductor that is connected grounding parts that connects Department of Radiation.
Compared with prior art, the present invention has following beneficial effect: volume is littler, and utilizes the shape and structure of antenna effectively to increase frequency range, and preferable impedance matching is arranged, and more adapts to the requirement that the modern electronic product volume is more and more littler and performance requirement is more and more higher.
[description of drawings]
Fig. 1 is the stereogram of prior art multifrequency antenna.
Fig. 2 is the stereogram of unipole antenna of the present invention.
Fig. 3 is the stereogram of another angle of unipole antenna of the present invention.
Fig. 4 is the stereogram of an angle again of unipole antenna of the present invention.
Fig. 5 is for irising out the partial enlarged drawing at position among Fig. 2.
Fig. 6 is for irising out the partial enlarged drawing at position among Fig. 3.
[embodiment]
Please refer to Fig. 2 to Fig. 6, unipole antenna 1 of the present invention comprises insulated substrate 10, Department of Radiation 20, grounding parts 30 and feeder line 40.Wherein Department of Radiation 20 and grounding parts 30 are made of sheet metal, and Department of Radiation 20 is formed at the surface of insulated substrate 10.
It is trapezoidal that Department of Radiation 20 is lengthwise, and a part in the middle of its broad one end hollows out forms less trapezoidal fluting 21, and this fluting 21 is divided into first radiation arm 201 and second radiation arm 202 with Department of Radiation 20.Department of Radiation 20 narrower ends have one " U " shape slit 22, and it makes Department of Radiation 20 narrower ends form the first rectangular arm 24a, the second rectangular arm 24b and protuberance 23.Department of Radiation 20 sticks on the insulated substrate 10.
Insulated substrate 10 two bottom sides have projection 11a, 11b.During installation projection 11a, the 11b of insulated substrate 10 passed conduit 31a, the 31b of grounding parts 30 respectively, thereby be fixed on the grounding parts 30.
Experiment shows that unipole antenna 1 of the present invention has enough frequency ranges, and under the less situation of volume, the Department of Radiation of antenna is designed to trapezium structure wide at the top and narrow at the bottom has increased its frequency range effectively.
In addition, broad one end of Department of Radiation 20 has fluting 21, makes to pass through the size adjustment impedance matching of fluting, thereby makes the impedance matching of antenna reach requirement.
Claims (10)
1. unipole antenna comprises: an insulated substrate, Department of Radiation, grounding parts and feeder line, and wherein Department of Radiation depends on described insulated substrate surface, it is characterized in that: described Department of Radiation is the lengthwise trapezoidal shape, and an end of broad hollows out mid portion; Grounding parts and described insulated substrate are at angle; Feeder line has the inner wire and the outer conductor that is connected grounding parts that connects Department of Radiation.
2. unipole antenna as claimed in claim 1 is characterized in that: the vertical described insulated substrate of described grounding parts.
3. unipole antenna as claimed in claim 1 is characterized in that: described insulated substrate bottom has in order to insulated substrate is retained on two projections on the grounding parts.
4. unipole antenna as claimed in claim 1 is characterized in that: the nearly grounding parts of the trapezoidal narrower termination of described Department of Radiation, and its to hollow out mid portion be a trapezoidal fluting.
5. unipole antenna as claimed in claim 1 is characterized in that: described Department of Radiation extends to form strip first radiation arm and second radiation arm of lengthwise to broad one end from a narrower end.
6. unipole antenna as claimed in claim 3 is characterized in that: described grounding parts is a rectangular metal plate, and an opening that is positioned at the center is arranged.
7. unipole antenna as claimed in claim 6 is characterized in that: described grounding parts has two to lay respectively at described opening both sides and do not link to each other with opening in order to the rectangular duct of the projection of accommodating insulated substrate.
8. unipole antenna as claimed in claim 1 is characterized in that: the narrower end of wherein said Department of Radiation has one " U " shape slit.
9. unipole antenna as claimed in claim 7 is characterized in that: the narrower end of wherein said Department of Radiation comprises a protuberance, is positioned at first rectangular arm and second rectangular arm of protuberance both sides, forms " U " shape groove between the three.
10. unipole antenna as claimed in claim 9 is characterized in that: the inner wire of described feeder line passes the opening of described grounding parts and the protuberance of described Department of Radiation electrically connects, and outer conductor and described grounding parts electrically connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101227920A CN1979947B (en) | 2005-11-30 | 2005-11-30 | Single-pole antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101227920A CN1979947B (en) | 2005-11-30 | 2005-11-30 | Single-pole antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1979947A true CN1979947A (en) | 2007-06-13 |
| CN1979947B CN1979947B (en) | 2011-11-16 |
Family
ID=38131020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005101227920A Expired - Fee Related CN1979947B (en) | 2005-11-30 | 2005-11-30 | Single-pole antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1979947B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259083A (en) * | 2008-05-22 | 2013-08-21 | 原田工业株式会社 | Dual-band antenna |
| CN103594787A (en) * | 2013-11-07 | 2014-02-19 | 中国计量学院 | U-shaped multifrequency coplane mobile phone antenna |
| CN104134853A (en) * | 2014-07-06 | 2014-11-05 | 胡洁维 | Single-polarized oscillator |
| CN110474157A (en) * | 2019-08-27 | 2019-11-19 | 南京邮电大学 | A kind of mobile communication frequency range printed monopole antenna |
-
2005
- 2005-11-30 CN CN2005101227920A patent/CN1979947B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103259083A (en) * | 2008-05-22 | 2013-08-21 | 原田工业株式会社 | Dual-band antenna |
| CN103259083B (en) * | 2008-05-22 | 2016-06-01 | 原田工业株式会社 | Two frequency antenna |
| CN103594787A (en) * | 2013-11-07 | 2014-02-19 | 中国计量学院 | U-shaped multifrequency coplane mobile phone antenna |
| CN104134853A (en) * | 2014-07-06 | 2014-11-05 | 胡洁维 | Single-polarized oscillator |
| CN110474157A (en) * | 2019-08-27 | 2019-11-19 | 南京邮电大学 | A kind of mobile communication frequency range printed monopole antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1979947B (en) | 2011-11-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20141130 |
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| EXPY | Termination of patent right or utility model |