CN2572695Y - Double-frequency antenna - Google Patents
Double-frequency antenna Download PDFInfo
- Publication number
- CN2572695Y CN2572695Y CN02254134U CN02254134U CN2572695Y CN 2572695 Y CN2572695 Y CN 2572695Y CN 02254134 U CN02254134 U CN 02254134U CN 02254134 U CN02254134 U CN 02254134U CN 2572695 Y CN2572695 Y CN 2572695Y
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- Prior art keywords
- dual
- radiation
- department
- band antenna
- grounding parts
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Abstract
The utility model relates to a double-frequency antenna, which comprises an antenna body, and comprises a base plate and a feed line, which bear the body of the antenna, wherein, the antenna body comprises a first radiation part, a second radiation part, and a grounding part, and the first radiation part, the second radiation part and the grounding part are all in the same plane. Through such arrangement and matching, the double-frequency antenna, which occupies less space, is realized.
Description
[technical field]
The utility model relates to a kind of dual-band antenna, refers in particular to the lower dual-band antenna of a kind of profile.
[background technology]
Along with the trend of electronic installation microminiaturization and design simplification, the electronic installation trend with communication receiving function is used the lower small size antenna of profile.Related art please refer to United States Patent (USP) the 5th, 764, and shown in No. 190, the antenna that above-mentioned patent disclosed is operated in single-frequency, the developing direction of incompatibility electronic installation multi-frequency multi-mode.So, double frequency or multifrequency antenna have appearred.Related art please refer to United States Patent (USP) the 6th, 002, No. 367, the paper of being delivered by Ming-Sze Tong, Yingchao Chen etc. " mobile phone receiver with the finite difference time domain analysis of double-band printed planar inverted F-shape antenna " (the relevant antenna of IEEE and propagate journal, March calendar year 2001, the 367th page to 376 pages) and the paper " the novel horseshoe clamp face printed antenna that is used for mobile phone communications " delivered by Mingwu Yang, Yinchao Chen (the relevant antenna of IEEE and propagate journal, June calendar year 2001, the 1002nd page to 1004 pages).But above-mentioned patent and the dual-band antenna that document disclosed all are stereochemical structures, take bigger space in electronic installation, and this is unfavorable for further reducing the overall volume of electronic installation.And the paper of being delivered by Fan Yang, Xue-Xia Zhang and Xiaoning Ye " the broadband E type paster antenna that is used for radio communication " (the relevant antenna of IEEE and propagate journal, July calendar year 2001, the 1094th page to 1100 pages) disclose a kind of dual-band antenna with planar structure, comprise Department of Radiation and the grounding parts about ten to 15 millimeters apart from Department of Radiation.But the profile that should have antenna now is higher, also is unfavorable for further reducing the overall volume of electronic installation.
[utility model content]
The utility model purpose is to provide a kind of dual-band antenna that takies less space.
The purpose of this utility model is achieved through the following technical solutions: the utility model comprises the substrate and the feeder line of antenna body, carrying antenna body, wherein antenna body comprises first Department of Radiation, second Department of Radiation and grounding parts, and described first Department of Radiation, second Department of Radiation and grounding parts all are in same plane.
Compared to prior art, each parts of antenna body of the present utility model all are in same plane, thereby realize a kind of dual-band antenna that takies less space.
[description of drawings]
Fig. 1 is the user mode schematic diagram of the utility model first embodiment dual-band antenna.
Fig. 2 is the antenna body of dual-band antenna shown in Figure 1 and the vertical view of substrate.
Voltage standing wave ratio when Fig. 3 lays respectively at the 2.4GHz and the 5.2GHz left and right sides for the working frequency range of dual-band antenna shown in Figure 1 is measured curve.
Fig. 4 be dual-band antenna operating frequency shown in Figure 1 when 2.5GHz, the horizontal polarization radiation field pattern on the X-Y plane.
Fig. 5 be dual-band antenna operating frequency shown in Figure 1 when 2.5GHz, the perpendicular polarization radiation field pattern on the X-Y plane.
Fig. 6 be dual-band antenna operating frequency shown in Figure 1 when 5.35GHz, the horizontal polarization radiation field pattern on the X-Y plane.
Fig. 7 be dual-band antenna operating frequency shown in Figure 1 when 5.35GHz, the perpendicular polarization radiation field pattern on the X-Y plane.
Fig. 8 is the stereogram of the utility model second embodiment dual-band antenna.
Voltage standing wave ratio when Fig. 9 lays respectively at the 2.4GHz and the 5.2GHz left and right sides for dual-band antenna working frequency range shown in Figure 8 is measured curve.
[embodiment]
Please refer to Fig. 1, Fig. 2 and shown in Figure 3, the utility model first embodiment dual-band antenna 1 comprises planar substrates 10, is tiled in the flat plane antenna body (not label) and the feeder line 14 of substrate 10 upper surfaces, wherein substrate 10 is made by insulating material, and antenna body comprises first Department of Radiation 11, second Department of Radiation 12 and the grounding parts 13 that all is banded, and described first Department of Radiation 11 and second Department of Radiation 12 extend upward and bend from the top edge of grounding parts 13 respectively.
First Department of Radiation 11 roughly is the T type, comprises the first arm 110 parallel with grounding parts 13, and first connecting portion 111 that connects the first arm 110 middle parts and grounding parts 13 middle parts.Second Department of Radiation 12 roughly is the L type, comprises second arm 120 and second connecting portion 121 that be connected second arm 120 one ends and grounding parts 13 parallel with grounding parts 13.The first arm 110 and second arm 120 are respectively along the relative horizontal parallel setting of lateral margin of first connecting portion 111 and second connecting portion 121.
Described feeder line 14 mainly comprises internal core wire 140 and shielding layer 141, and wherein internal core wire 140 is welded on the first arm 110, and shielding layer 141 is welded on the grounding parts 13.By changing the input impedance matching that dual-band antenna 1 can be regulated in the welding position of internal core wire 140 on the first arm 110.
Please refer to shown in Figure 1, during use, the grounding parts 13 of the utility model first embodiment dual-band antenna 1 and the earthing component 15 (being ground strip in the present embodiment) in the electronic installation (not shown) electrically connect, and wherein grounding parts 13 roughly is in same plane with earthing component 15.
In the present embodiment, the length of the first arm 110 is that the height of 49mm, first connecting portion 111 is 5.4mm, and the length of second arm 120 is that the height of 7mm, second connecting portion 121 is 3.6mm, is spaced apart 1.8mm between the first arm 110 and second arm 120.The operating frequency of the utility model dual-band antenna 1 is respectively 2.4GHZ frequency band (2.38GHZ-2.67GHZ) and 5GHZ frequency band (5.02GHZ-5.40GHZ).Thereby produce the resonance electric field by first Department of Radiation 11 and grounding parts 13 and excite generation 2.4GHZ band signal, second Department of Radiation 12 excites by electromagnetic induction and produces the 5GHZ band signal, so the utility model dual-band antenna 1 only just can be realized double frequency reception/emission with a feeder line 14.
The voltage standing wave ratio of the utility model dual-band antenna 1 is measured curve and be please refer to shown in Figure 3, in the frequency range of 2.4GHZ (2.38GHZ-2.67GHZ) and 5GHZ (5.02GHZ-5.40GHZ), the voltage standing wave ratio of the utility model dual-band antenna 1 satisfies the proportion requirement of industry for voltage standing wave ratio or antenna energy radiation and reflection less than 2.
Please refer to Fig. 4 and shown in Figure 5, when the operating frequency of present embodiment is 2.5GHz, dual-band antenna in the maximum gain of the horizontal polarization of X-Y plane is-1.95dBi, average gain is-7.43dBi, the maximum gain of perpendicular polarization is-3.01dBi, average gain is-5.711dBi, as seen, when present embodiment is operated in the 2.4GHz frequency band, the radiation field pattern of this dual-band antenna 1 on X-Y plane do not have tangible dead angle, in error range, the radiance of the utility model dual-band antenna 1 meets the demands.
Please refer to Fig. 6 and shown in Figure 7, when the operating frequency of present embodiment was 5.35GHz, dual-band antenna was about-0.89dBi in the maximum gain of the horizontal polarization of X-Y plane, and average gain is-7.454dBi, the maximum gain of perpendicular polarization is about-4.73dBi, and average gain is-10.243dBi.When present embodiment was operated in the 5GHz frequency band, the radiation pattern of this dual-band antenna 1 on X-Y plane do not have tangible dead angle, and in error range, the radiance of the utility model dual-band antenna 1 meets the demands.
Please refer to shown in Figure 8, the grounding parts 23 of the antenna body of the utility model second embodiment dual-band antenna 2 (not label) roughly is rectangle, area is bigger, can be installed on the installed surface of electronic installation (not shown) during use easily, because the structure and first embodiment of other assembly of second embodiment are similar, this place repeats no more.
The voltage standing wave ratio that measures in above-mentioned second embodiment is measured curve and be please refer to shown in Figure 9, in the frequency range of 2.4GHz (2.35GHz-2.48GHz) and 5GHz (5.00GHz-5.25GHz), the voltage standing wave ratio of the utility model second embodiment dual-band antenna 2 satisfies the proportion requirement of industry for voltage standing wave ratio or antenna energy radiation and reflection less than 2.
Compared to prior art, all parts of antenna body of the present utility model all is in same plane, from And realize the dual-band antenna 1,2 in the littler space of a kind of Zhan Yong.
Claims (10)
1. dual-band antenna, be installed on the electronic installation that is provided with earthing component, comprise antenna body, the substrate of carrying antenna body and the feeder line that is connected with antenna body, wherein antenna body comprises first Department of Radiation, second Department of Radiation and grounding parts, it is characterized in that: first Department of Radiation, second Department of Radiation and grounding parts all are arranged on same plane.
2. dual-band antenna according to claim 1 is characterized in that: described first and second Department of Radiation extends from the same lateral margin of grounding parts respectively.
3. dual-band antenna according to claim 2 is characterized in that: first Department of Radiation comprises the first arm parallel with grounding parts and first connecting portion that is connected the first arm and grounding parts.
4. dual-band antenna according to claim 2 is characterized in that: second Department of Radiation comprises second arm parallel with grounding parts and second connecting portion that is connected second arm and grounding parts.
5. dual-band antenna according to claim 4 is characterized in that: described feeder line has internal core wire and shielding layer, and wherein the first arm of the internal core wire and first Department of Radiation electrically connects, and shielding layer then electrically connects with grounding parts.
6. dual-band antenna according to claim 5 is characterized in that: can regulate the impedance matching of dual-band antenna in the welding position of the first arm by the internal core wire that changes feeder line.
7. dual-band antenna according to claim 1 is characterized in that: the earthing component of grounding parts and electronic installation electrically connects.
8. dual-band antenna according to claim 1 is characterized in that: first Department of Radiation works in lower frequency, and second Department of Radiation works in upper frequency.
9. dual-band antenna according to claim 1 is characterized in that: first Department of Radiation roughly is the T type, and second Department of Radiation roughly is the L type.
10. dual-band antenna according to claim 1 is characterized in that: grounding parts is the lengthwise banded structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02254134U CN2572695Y (en) | 2002-09-10 | 2002-09-10 | Double-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN02254134U CN2572695Y (en) | 2002-09-10 | 2002-09-10 | Double-frequency antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2572695Y true CN2572695Y (en) | 2003-09-10 |
Family
ID=33723063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN02254134U Expired - Lifetime CN2572695Y (en) | 2002-09-10 | 2002-09-10 | Double-frequency antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2572695Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365867C (en) * | 2003-12-31 | 2008-01-30 | 广达电脑股份有限公司 | Multi-frequency antenna |
| CN100380829C (en) * | 2005-01-17 | 2008-04-09 | 英华达（南京）科技有限公司 | Single antenna GSM/PHS dual mode mobile telephone |
| CN1773770B (en) * | 2004-11-09 | 2010-06-23 | 启碁科技股份有限公司 | Antenna applied to portable electronic device |
| CN101882707A (en) * | 2009-05-06 | 2010-11-10 | 鸿富锦精密工业（深圳）有限公司 | Electronic equipment and multi-frequency antenna thereon |
| CN102148421A (en) * | 2010-12-30 | 2011-08-10 | 连展科技电子（昆山）有限公司 | Ground crushing antenna |
| CN101047276B (en) * | 2006-03-30 | 2011-08-31 | 达创科技股份有限公司 | Multiple frequency band planar antenna |
| CN101459271B (en) * | 2007-12-12 | 2012-10-31 | 富士康(昆山)电脑接插件有限公司 | Multi-frequency antenna |
-
2002
- 2002-09-10 CN CN02254134U patent/CN2572695Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100365867C (en) * | 2003-12-31 | 2008-01-30 | 广达电脑股份有限公司 | Multi-frequency antenna |
| CN1773770B (en) * | 2004-11-09 | 2010-06-23 | 启碁科技股份有限公司 | Antenna applied to portable electronic device |
| CN100380829C (en) * | 2005-01-17 | 2008-04-09 | 英华达（南京）科技有限公司 | Single antenna GSM/PHS dual mode mobile telephone |
| CN101047276B (en) * | 2006-03-30 | 2011-08-31 | 达创科技股份有限公司 | Multiple frequency band planar antenna |
| CN101459271B (en) * | 2007-12-12 | 2012-10-31 | 富士康(昆山)电脑接插件有限公司 | Multi-frequency antenna |
| CN101882707A (en) * | 2009-05-06 | 2010-11-10 | 鸿富锦精密工业（深圳）有限公司 | Electronic equipment and multi-frequency antenna thereon |
| CN101882707B (en) * | 2009-05-06 | 2014-01-15 | 鸿富锦精密工业（深圳）有限公司 | Electronic equipment and multi-frequency antenna thereon |
| CN102148421A (en) * | 2010-12-30 | 2011-08-10 | 连展科技电子（昆山）有限公司 | Ground crushing antenna |
| CN102148421B (en) * | 2010-12-30 | 2014-01-01 | 连展科技电子（昆山）有限公司 | Ground crushing 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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120910 Granted publication date: 20030910 |