CN102195127A - Double-frequency inverted-F-shaped antenna - Google Patents
Double-frequency inverted-F-shaped antenna Download PDFInfo
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- CN102195127A CN102195127A CN2010101310365A CN201010131036A CN102195127A CN 102195127 A CN102195127 A CN 102195127A CN 2010101310365 A CN2010101310365 A CN 2010101310365A CN 201010131036 A CN201010131036 A CN 201010131036A CN 102195127 A CN102195127 A CN 102195127A
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Abstract
The invention discloses a double-frequency inverted-F-shaped antenna which is applied to a notebook computer and comprises a grounding metal face and an oscillator, wherein a grounding point is arranged on the grounding metal face; a feeding point is arranged on the oscillator and is connected with the grounding point on the grounding metal face through a coaxial cable, one end of the oscillator is a low-frequency oscillator, the other end of the oscillator is a high-frequency oscillator, a common terminal of the low-frequency oscillator and the high-frequency oscillator is provided with a short-circuit loading arm, one end of the short-circuit loading arm is connected with the grounding metal face, and the other end of the low-frequency oscillator is of a bent shape. As the low-frequency oscillator of the double-frequency inverted-F-shaped antenna is of the bent shape, the size of the antenna is decreased, and the requirement for the development trend of the mechanism design of the notebook computer is met.
Description
[technical field]
The present invention relates to a kind of double-frequency inverted F-type antenna, particularly a kind of small-sized double-frequency inverted F-type antenna that adopts antenna meander technology to dwindle antenna size.
[background technology]
The informationization of modern society is more and more higher to the requirement of the communication technology, and development of Communication Technique is maked rapid progress especially.Radio communication is a kind of main communication form of modern communications, and WLAN (wireless local area network) is a kind of application wireless communication technology more and more widely.Along with the use of WLAN (wireless local area network), wireless lan antenna also becomes must accessory.The wireless lan antenna of notebook computer adopts inverted F shaped antenna mostly at present, owing to will reach the result of use (2.4GHz/5GHz) of double frequency, its antenna body volume is substantially about 20mm*30mm*0.2mm, along with the pressure of cost and the pressure in notebook computer mechanism design space, above-mentioned antenna size has not reached the requirement of present situation, and existing double-frequency inverted F-type antenna is as follows:
Fig. 1 illustrates the structural representation of existing double-frequency inverted F-type antenna.
With reference to shown in Figure 1, existing double-frequency inverted F-type antenna is applied in the notebook computer, and this double-frequency inverted F-type antenna comprises:
Oscillator 11, the feedback point 111 which is provided with is connected by a coaxial cable (not shown) with the earth point 101 on the above-mentioned grounding metal plane 10, one end of this oscillator 11 is a low frequency oscillator 112, the other end is a high frequency oscillator 113, the common port of the two is provided with a short circuit loading arm 114, one end of this short circuit loading arm 114 is connected with above-mentioned grounding metal plane 10, and this low frequency oscillator 112 is a linear pattern setting with high frequency oscillator 113.
From the above, the low frequency oscillator of double-frequency inverted F-type antenna of the prior art is a linear pattern with the high frequency oscillator and is connected, and causes the overall volume of antenna big, not meet the development trend of notebook computer mechanism design, has influenced the inner space of computer.
[summary of the invention]
The object of the present invention is to provide a kind of double-frequency inverted F-type antenna, excessive to solve existing double-frequency inverted F-type antenna volume, influence the problem of the inner space of notebook computer.
For achieving the above object, the invention provides a kind of double-frequency inverted F-type antenna, it is applied in the notebook computer, and this double-frequency inverted F-type antenna comprises:
Grounding metal plane which is provided with an earth point;
Oscillator, the feedback point which is provided with is connected by a coaxial cable with the earth point on the above-mentioned grounding metal plane, one end of this oscillator is a low frequency oscillator, the other end is a high frequency oscillator, the common port of the two is provided with a short circuit loading arm, one end of this short circuit loading arm is connected with above-mentioned grounding metal plane, and the other end of this low frequency oscillator is bending.
Compared to prior art, the low frequency oscillator of double-frequency inverted F-type antenna of the present invention is bending, thereby has reduced the size of antenna, has reached the demand of the development trend of notebook computer mechanism design.
For purpose of the present invention, structural feature and function thereof are had further understanding, conjunction with figs. is described in detail as follows now:
[description of drawings]
Fig. 1 illustrates existing double-frequency inverted F-type antenna structure chart.
Fig. 2 illustrates double-frequency inverted F-type antenna structure chart of the present invention.
[embodiment]
With reference to Fig. 2, it is a double-frequency inverted F-type antenna structure chart of the present invention, double-frequency inverted F-type antenna of the present invention, and it is applied in the notebook computer, and this double-frequency inverted F-type antenna comprises:
Oscillator 21, the feedback point 211 which is provided with is connected by a coaxial cable (not shown) with the earth point 201 on the above-mentioned grounding metal plane 20, one end of this oscillator 21 is a low frequency oscillator 212, the other end is a high frequency oscillator 213, the common port of the two is provided with a short circuit loading arm 214, one end of this short circuit loading arm 214 is connected with above-mentioned grounding metal plane 20, and the other end of this low frequency oscillator 214 is bending.
Wherein, the curved end of low frequency oscillator 214 can utilize paster meander technology to carry out bending according to the needs in the practical application, thereby reaches required result of use.
In present embodiment, the curved end of double-frequency inverted F-type antenna medium and low frequency oscillator 214 of the present invention adopts paster meander technology to reach, paster meander technology is a kind of antenna miniaturization technology by exciting current path, bent antenna paster surface, we know, on the metal covering of microstrip antenna, the CURRENT DISTRIBUTION difference of each resonance mode, if under identical resonance mode, slot, then this groove will destroy the current path of original resonance mode, make current path elongated, the resonant wavelength of antenna becomes big relatively like this, therefore the frequency of antenna changes with the length of groove, it is many more that the long more corresponding operating frequency of antenna of the groove that digs reduces, and utilizes the operating frequency that this conception of species just can control antenna, designs the antenna performance of needs.The operating frequency of the double-frequency inverted F-type antenna of making by this paster meander technology also can reach 2.4GHz/5GHz, the frequency range of its 2.4GHz is (2.4GHz～2.4835GHz), the frequency range of 5GHz is (5.15GHz～5.35GHz and 5.725GHz～5.825GHz), and make antenna be of a size of 17mm*17mm*0.2mm, reduction in bulk about 50%.Therefore, double-frequency inverted F-type antenna of the present invention has reduced the size of antenna, has reached the demand of the development trend of notebook computer mechanism design.
Claims (2)
1. double-frequency inverted F-type antenna, it is applied to it is characterized in that in the notebook computer that this double-frequency inverted F-type antenna comprises:
Grounding metal plane which is provided with an earth point;
Oscillator, the feedback point which is provided with is connected by a coaxial cable with the earth point on the above-mentioned grounding metal plane, one end of this oscillator is a low frequency oscillator, the other end is a high frequency oscillator, the common port of the two is provided with a short circuit loading arm, one end of this short circuit loading arm is connected with above-mentioned grounding metal plane, and the other end of this low frequency oscillator is bending.
2. double-frequency inverted F-type antenna as claimed in claim 1 is characterized in that, the frequency range of above-mentioned low frequency oscillator is 2.4GHz～2.4835GHz, and the frequency range of high frequency oscillator is 5.15GHz～5.35GHz and 5.725GHz～5.825GHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101310365A CN102195127A (en) | 2010-03-03 | 2010-03-03 | Double-frequency inverted-F-shaped antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101310365A CN102195127A (en) | 2010-03-03 | 2010-03-03 | Double-frequency inverted-F-shaped antenna |
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| Publication Number | Publication Date |
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| CN102195127A true CN102195127A (en) | 2011-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101310365A Pending CN102195127A (en) | 2010-03-03 | 2010-03-03 | Double-frequency inverted-F-shaped antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106058439A (en) * | 2016-05-12 | 2016-10-26 | 西北工业大学 | Miniature meander loop high frequency antenna and simulation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1365161A (en) * | 2001-01-17 | 2002-08-21 | 财团法人工业技术研究院 | Multiple frequency antenna device |
| US20060279464A1 (en) * | 2005-06-10 | 2006-12-14 | Hon Hai Precision Industry Co., Ltd. | Dual-band antenna for radiating electromagnetic signals of different frequencies |
| CN200979907Y (en) * | 2006-11-02 | 2007-11-21 | 中兴通讯股份有限公司 | A novel built-in antenna system for a mobile phone |
| CN101238612A (en) * | 2005-08-05 | 2008-08-06 | 索尼爱立信移动通讯股份有限公司 | Multi-band antenna device for radio communication terminal and radio communication terminal comprising the multi-band antenna device |
| CN201655958U (en) * | 2010-03-03 | 2010-11-24 | 神讯电脑(昆山)有限公司 | Double-frequency inverted-F type antenna |
-
2010
- 2010-03-03 CN CN2010101310365A patent/CN102195127A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1365161A (en) * | 2001-01-17 | 2002-08-21 | 财团法人工业技术研究院 | Multiple frequency antenna device |
| US20060279464A1 (en) * | 2005-06-10 | 2006-12-14 | Hon Hai Precision Industry Co., Ltd. | Dual-band antenna for radiating electromagnetic signals of different frequencies |
| CN101238612A (en) * | 2005-08-05 | 2008-08-06 | 索尼爱立信移动通讯股份有限公司 | Multi-band antenna device for radio communication terminal and radio communication terminal comprising the multi-band antenna device |
| CN200979907Y (en) * | 2006-11-02 | 2007-11-21 | 中兴通讯股份有限公司 | A novel built-in antenna system for a mobile phone |
| CN201655958U (en) * | 2010-03-03 | 2010-11-24 | 神讯电脑(昆山)有限公司 | Double-frequency inverted-F type antenna |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106058439A (en) * | 2016-05-12 | 2016-10-26 | 西北工业大学 | Miniature meander loop high frequency antenna and simulation method |
| CN106058439B (en) * | 2016-05-12 | 2018-12-18 | 西北工业大学 | A kind of emulation mode of miniaturization meander loop line high frequency antenna |
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Application publication date: 20110921 |