CN1783581A - Multiple frequency antenna structure - Google Patents
Multiple frequency antenna structure Download PDFInfo
- Publication number
- CN1783581A CN1783581A CNA200510102618XA CN200510102618A CN1783581A CN 1783581 A CN1783581 A CN 1783581A CN A200510102618X A CNA200510102618X A CN A200510102618XA CN 200510102618 A CN200510102618 A CN 200510102618A CN 1783581 A CN1783581 A CN 1783581A
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- metal arm
- ground plane
- antenna structure
- short circuit
- frequency range
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Abstract
This invention relates to a multiple frequency antenna structure including an earth, a first radiation metal arm, a first parasitic short circuit metal arm and a second parasitic short circuit metal arm, in which, the first radiation metal arm is taken as the main emitting antenna and has a first feeding point to be connected with the first feeding line, the first parasitic short circuit arm extends to outside from the earth and is placed between the earth and the first radiation metal arm for coupling with it to resonate on the first band, the second parasitic short circuit arm also extends to outside from the earth and is placed between the first radiation arm and the first parasitic short circuit arm to couple with the first radiation arm to resonate on the second band.
Description
Technical field:
The present invention is a kind of multiple frequency antenna structure, particularly about a kind of operation of reaching a plurality of frequency ranges by parasitic short circuit metal arm.
Background technology:
Along with the development of Wi-Fi technology, utilize Wi-Fi to carry out browsing page, data transmission, inquiry, transaction, teaching, line recreation and send and receive e-mail, also be ready-made computer user pipeline and shortcut quite important and communication fast.Simultaneously, Radio Transmission Technology also develops and multiple communication protocol and technology, as: WLAN, GSM, GPS, GPRS, CDMA, WCDMA etc., so various transmission technology is widely used on various occasions and the equipment gradually.Above-mentioned Radio Transmission Technology now all can be as the transmission medium of Wi-Fi online.
Yet, the most basic transfer element of Radio Transmission Technology still relies on antenna and transmits, therefore, the design of antenna will influence the quality of transmission of wireless signals, hereat, the inventor inquires into based on many practical experience and special topic, satisfies in the present invention to propose a kind of multiple frequency antenna structure with as the implementation of stating expectation and foundation.
Summary of the invention:
Because above-mentioned problem, purpose of the present invention is for providing a kind of multiple frequency antenna structure, particularly about a kind of operation of reaching a plurality of frequency ranges by parasitic short circuit metal arm.
For reaching above-mentioned purpose,, include ground plane, the first radiation metal arm, the first parasitic short circuit metal arm and the second parasitic short circuit metal arm at least according to the disclosed multiple frequency antenna structure of the present invention.By the first radiation metal arm as main transmitting antenna and have first load point to connect the first feed-in line.The first parasitic short circuit metal arm is by the outward extending metal arm of ground plane, this first parasitic short circuit metal arm between the ground plane and the first radiation metal arm, in order to the first radiation metal arm coupled resonance in first frequency range.The second parasitic short circuit metal arm also is by the outward extending metal arm of ground plane, this second parasitic short circuit metal arm between the first radiation metal arm and the first parasitic short circuit metal arm, in order to the first radiation metal arm coupled resonance in second frequency range.
Description of drawings:
Fig. 1 is an embodiment schematic diagram of multiple frequency antenna structure of the present invention;
Fig. 2 is another embodiment schematic diagram of multiple frequency antenna structure of the present invention;
Fig. 3 is that voltage standing wave ratio (VSWR) performance of multiple frequency antenna structure of the present invention measures curve chart;
Fig. 4 is the measurement curve chart of the input impedance of multiple frequency antenna structure of the present invention;
Fig. 5 is an embodiment schematic diagram again of multiple frequency antenna structure of the present invention;
Fig. 6 is that voltage standing wave ratio (VSWR) performance of multiple frequency antenna structure of the present invention measures curve chart;
Fig. 7 is the measurement curve chart of the input impedance of multiple frequency antenna structure of the present invention;
Fig. 8 is the schematic perspective view of the multiple frequency antenna structure applied metal moulding of Fig. 5.
The figure number simple declaration:
S: multiple frequency antenna structure; 11: ground plane;
12: the first radiation metal arms; 121 first load points;
122 and 123: the radiation metal arm; 13: the first parasitic short circuit metal arms;
131 and 132: metal arm; 14: the second parasitic short circuit metal arms;
141 and 142: metal arm; 21: ground plane;
22: the first radiation metal arms; 221: the first load points;
222 and 223: the radiation metal arm; 224: end;
23: the first parasitic short circuit metal arms; 231 and 232: metal arm;
233: end; 24: the second parasitic short circuit metal arms;
241,242 and 243: metal arm; 5: the trixenie short circuit metal arms;
251 and 252: metal arm; 26: another ground plane;
A, b, c and d: frequency range; M: multiple frequency antenna structure;
51: the second radiation metal arms; 511: the second load points;
512 and 513: the radiation metal arm; 52: the three radiation metal arms
521: the radiation metal arm; 53: the short circuit metal arm;
E, f, g and h: frequency range; 61: the first feed-in lines;
611: outer earthing conductor; 62: the second feed-in lines; 621: outer earthing conductor.
Execution mode:
Now further understand and understanding for the auditor is had architectural feature of the present invention and the effect reached, sincerely help with preferred embodiment and cooperate detailed explanation, illustrate as after:
See also Fig. 1, be an embodiment schematic diagram of multiple frequency antenna structure of the present invention.This multiple frequency antenna structure S includes ground plane 11, the first radiation metal arm, 12, the first parasitic short circuit metal arm 13 and the second parasitic short circuit metal arm 14 at least.
The first radiation metal arm 12 is as main transmitting antenna and have first load point 121 to connect the first feed-in line, this first radiation metal arm 12 is a L type radiation metal arm, it is first load point 121 perpendicular to a radiation metal arm 122 of ground plane 11 near ground plane 11 end points, and another radiation metal arm 123 then is connected in respect to another end points near ground plane 11 end points and is parallel to ground plane 11.
The first parasitic short circuit metal arm 13, by ground plane 11 stretch out and in order to the first radiation metal arm, 12 coupled resonances in first frequency range.This first parasitic short circuit metal arm 13 can be L type metal arm, its metal arm 131 1 ends perpendicular to ground plane 11 are connected with ground plane 11, connect another metal arm 132 that is parallel to ground plane 11 in the other end, this metal arm 132 is between the first radiation metal arm 12 and ground plane 11.
The second parasitic short circuit metal arm 14, by ground plane 11 stretch out and in order to the first radiation metal arm, 12 coupled resonances in second frequency range.This second parasitic short circuit metal arm 14 can be L type metal arm, its metal arm 141 1 ends perpendicular to ground plane are connected with ground plane 11, connect another metal arm 142 that is parallel to ground plane 11 in the other end, this metal arm 142 is between the first parasitic short circuit metal arm 13 and ground plane 11.
Wherein, the first feed-in line is a coaxial transmission line, and the outer earthing conductor that is coated on coaxial transmission line then is connected to ground plane, and in addition, the first parasitic short circuit metal arm 13 and the first radiation metal arm, 12 coupled resonances are in as first frequency range between 824MHz and 960MHz.The second parasitic short circuit metal arm 14 and the first radiation metal arm, 12 coupled resonances are in as second frequency range between 1575MHz and 2170MHz.This multiple frequency antenna structure S can be used for the wireless communication frequency band of GSM850, GSM900, DCS1800, PCS1900, GPS and UMTS.
See also Fig. 2, be another embodiment schematic diagram of multiple frequency antenna structure of the present invention.This antenna structure includes ground plane 21, the first radiation metal arm, 22, first parasitic short circuit metal arm 23, second parasitic short circuit metal arm 24 and the trixenie short circuit metal arm 25 at least.
The first radiation metal arm 22 is as main transmitting antenna and have first load point 221 to connect the first feed-in line, this first radiation metal arm 22 is a L type radiation metal arm, it is first load point 221 perpendicular to a radiation metal arm 222 of ground plane 21 away from ground plane 21 end points, another radiation metal arm 223 then is connected in respect to another end points away from ground plane 21 end points and is parallel to ground plane 21, and this radiation metal arm 223 that is parallel to ground plane 21 dwindles its width in terminal 224 1 segment length.
The first parasitic short circuit metal arm 23, by ground plane 21 stretch out and in order to the first radiation metal arm, 22 coupled resonances in first frequency range.This first parasitic short circuit metal arm 23 can be L type metal arm, its metal arm 231 1 ends perpendicular to ground plane are connected with ground plane 21, connect another metal arm 232 that is parallel to ground plane 21 in the other end, this metal arm 232 that is parallel to ground plane 21 dwindles its width in terminal 233 1 segment length, and is provided with a radiation metal arm 223 and the ground plane 21 of the first radiation metal arm, 22 its parallel ground planes in the one side.
The second parasitic short circuit metal arm 24, by ground plane 21 stretch out and in order to the first radiation metal arm, 22 coupled resonances in second frequency range.This second parasitic short circuit metal arm 24 can be L type metal arm, its metal arm 241 1 ends perpendicular to ground plane 21 are connected with ground plane 21, connect another metal arm 242 that is parallel to ground plane 21 in the other end, this metal arm 242 dwindles its width in terminal 243 1 segment length, and between the first radiation metal arm 22 and ground plane 21.
Trixenie short circuit metal arm 25 is another second parasitic short circuit metal arm, by ground plane 26 stretch out and in order to the first radiation metal arm, 22 coupled resonances in second frequency range.This trixenie short circuit metal arm 25 can be L type metal arm, it is arranged at the opposite side of the first parasitic short circuit metal arm 23 with respect to the first radiation metal arm 22 and ground plane 21, these trixenie short circuit metal arm 25 one metal arms 251 are parallel to an arm 232 of the first parasitic short circuit metal arm 23 parallel ground planes, another metal arm 252 is vertical and it is terminal away from ground plane 21, and the end of this metal arm 252 is connected to another ground plane 26.
Wherein, the first feed-in line is a coaxial transmission line, and the outer earthing conductor that is coated on coaxial transmission line then is connected to ground plane, and in addition, the first parasitic short circuit metal arm 23 and the first radiation metal arm, 22 coupled resonances are in as first frequency range between 824MHz and 960MHz.The second parasitic short circuit metal arm 24 and trixenie short circuit metal arm 25 and the first radiation metal arm, 22 equal coupled resonances are in as second frequency range between 1710MHz and 2170MHz.
See also Fig. 3, be voltage standing wave ratio (VSWR) the performance measurement curve chart of multiple frequency antenna structure of the present invention.In figure, the voltage standing wave ratio of 824MHz to the frequency range a of 960MHz and 1575MHz to the frequency range b of 2170MHz is all minimum, so the antenna frequency range can contain GSM850, GSM900, DCS1800, PCS1900, GPS and UMTS and all have good aerial radiation gain.
See also Fig. 4, be the measurement curve chart of the input impedance of multiple frequency antenna structure of the present invention.The observation of the reflection loss of curve chart thus (return loss) can further be confirmed, multiple frequency antenna structure of the present invention in 824MHz to the frequency range c of 960MHz and 1575MHz to the frequency range d of 2170MHz, be good operation frequency range.
See also Fig. 5, be an embodiment schematic diagram again of multiple frequency antenna structure of the present invention.Increase by the second radiation metal arm 51, the 3rd radiation metal arm 52 and short circuit metal arm 53 for multiple frequency antenna structure S shown in Figure 1 again in the contiguous first radiation metal arm 12 among the figure.
The second radiation metal arm 51, resonate in one the 3rd frequency range, has second load point 511 to connect the second feed-in line, this second radiation metal arm 51 is a L type radiation metal arm, it is second load point 511 perpendicular to a radiation metal arm 512 of ground plane 11 near ground plane 11 end points, and another radiation metal arm 513 then is connected in respect to another end points near ground plane 11 end points and is parallel to ground plane 11.
The 3rd radiation metal arm 52 resonates in one the 4th frequency range, extends from the second radiation metal arm 51 near these second load point, 511 places.This 3rd radiation metal arm 52 is a ㄈ type radiation metal arm, and one in its two parallel radiation metal arm 521 is in order to be connected to the second radiation metal arm 51 and to be parallel to ground plane 11.
Short circuit metal arm 53 in order to the second radiation metal arm 51 and the 3rd radiation metal arm 52 are electrically connected to ground plane 11, extends perpendicularly to the 3rd radiation metal arm 52 by ground plane 11.
Wherein, the second feed-in line is a coaxial transmission line, and the outer earthing conductor that is coated on coaxial transmission line then is connected to ground plane.In addition, the second radiation metal arm resonates separately in as the 3rd frequency range between 4900MHz and 5800MHz, and the parasitic radiation metal arm resonates separately in as the 4th frequency range between 2400MHz and 2500MHz.This multiple frequency antenna structure M has more increased the wireless communication frequency band of WLAN except can be used for the wireless communication frequency band of GSM850, GSM900, DCS1800, PCS1900, GPS and UMTS.
See also Fig. 6, be voltage standing wave ratio (VSWR) the performance measurement curve chart of multiple frequency antenna structure of the present invention.In figure, the voltage standing wave ratio of 2400MHz to the frequency range e of 2500MHz and 4900MHz to the frequency range f of 5800MHz is all minimum, so the antenna frequency range more can contain WLAN and all have good aerial radiation gain.
See also Fig. 7, be the measurement curve chart of the input impedance of multiple frequency antenna structure of the present invention.The observation of the reflection loss of curve chart thus (return loss) can further be confirmed, multiple frequency antenna structure of the present invention in 2400MHz to the frequency range g of 2500MHz and 4900MHz to the frequency range h of 5800MHz, be good operation frequency range.
But modes such as multiple frequency antenna structure using flexible of the present invention printing or metal forming are made.See also Fig. 8, be the schematic perspective view of the multiple frequency antenna structure applied metal moulding of Fig. 5.Among the figure, the coaxial transmission line of the first feed-in line 61 is connected in first load point 121 of the first radiation metal arm 12, and the outer earthing conductor 611 of coaxial transmission line is connected to ground plane 11.The coaxial transmission line of the second feed-in line 62 is connected in second load point 511 of the second radiation metal arm 51, and the outer earthing conductor 621 of coaxial transmission line is connected to ground plane 11.
The above, it only is preferred embodiment of the present invention, be not to be used for limiting scope of the invention process, all according to the described shape of the present patent application claim, structure, feature and principle etc. change and modify, all should be contained in the claim of the present invention.
Claims (11)
1, a kind of multiple frequency antenna structure comprises at least:
One ground plane;
One first radiation metal arm has one first load point and connects one first feed-in line;
One first parasitic short circuit metal arm, by this ground plane stretch out and in order to this first radiation metal arm coupled resonance in one first frequency range;
At least one second parasitic short circuit metal arm, by this ground plane stretch out and in order to this first radiation metal arm coupled resonance in one second frequency range.
2, as the 1st described multiple frequency antenna structure of claim, wherein this first feed-in line is a coaxial transmission line, and an outer earthing conductor that is coated on this coaxial transmission line is connected to this ground plane.
3, as the 1st described multiple frequency antenna structure of claim, wherein this first frequency range is between 824 MHz and 960 MHz.
4, as the 1st described multiple frequency antenna structure of claim, wherein this second frequency range is between 1575 MHz and 2170 MHz.
5, a kind of multiple frequency antenna structure comprises at least:
One ground plane;
One first radiation metal arm has one first load point and connects one first feed-in line;
One first parasitic short circuit metal arm, by this ground plane stretch out and in order to this first radiation metal arm coupled resonance in one first frequency range;
At least one second parasitic short circuit metal arm, by this ground plane stretch out and in order to this first radiation metal arm coupled resonance in one second frequency range;
One second radiation metal arm resonates in one the 3rd frequency range, has one second load point and connects one second feed-in line;
One the 3rd radiation metal arm extends from nearly this second load point place of this second radiation metal arm rest, resonates in one the 4th frequency range;
One short circuit metal arm is in order to be electrically connected to this ground plane with this second radiation metal arm and the 3rd radiation metal arm.
6, as the 1st described multiple frequency antenna structure of claim, wherein this first feed-in line is a coaxial transmission line, and an outer earthing conductor that is coated on this coaxial transmission line is connected to this ground plane.
7, as the 1st described multiple frequency antenna structure of claim, wherein this second feed-in line is a coaxial transmission line, and an outer earthing conductor that is coated on this coaxial transmission line is connected to this ground plane.
8, as the 1st described multiple frequency antenna structure of claim, wherein this first frequency range is between 824 MHz and 960 MHz.
9, as the 1st described multiple frequency antenna structure of claim, wherein this second frequency range is between 1575 MHz and 2170 MHz.
10, as the 1st described multiple frequency antenna structure of claim, wherein the 3rd frequency range is between 4900 MHz and 5800 MHz.
11, as the 1st described multiple frequency antenna structure of claim, wherein the 4th frequency range is between 2400 MHz and 2500 MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200510102618XA CN1783581A (en) | 2005-09-12 | 2005-09-12 | Multiple frequency antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200510102618XA CN1783581A (en) | 2005-09-12 | 2005-09-12 | Multiple frequency antenna structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1783581A true CN1783581A (en) | 2006-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200510102618XA Pending CN1783581A (en) | 2005-09-12 | 2005-09-12 | Multiple frequency antenna structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1783581A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102117966A (en) * | 2011-03-17 | 2011-07-06 | 华为终端有限公司 | Printed antenna |
| CN102148423A (en) * | 2010-02-10 | 2011-08-10 | 上海安费诺永亿通讯电子有限公司 | Method for improving coupling isolation between microstrip antennas |
| CN102340050A (en) * | 2010-07-16 | 2012-02-01 | 富士康(昆山)电脑接插件有限公司 | Multi-frequency antenna and multi-frequency antenna array |
| CN101308949B (en) * | 2007-05-17 | 2012-06-13 | 光宝科技股份有限公司 | Wide-band dipolar antenna |
| CN101308948B (en) * | 2007-05-17 | 2012-06-27 | 光宝科技股份有限公司 | Double by-pass circuit wide-band antenna |
| CN101359778B (en) * | 2007-07-30 | 2012-07-18 | 富士康(昆山)电脑接插件有限公司 | Antenna assembly piece |
| CN101420061B (en) * | 2007-10-24 | 2012-08-29 | 耀登科技股份有限公司 | Reverse-F type antennae |
| CN102810721A (en) * | 2011-06-03 | 2012-12-05 | 启碁科技股份有限公司 | Antenna with multiple resonance modes |
| CN104412450A (en) * | 2014-04-28 | 2015-03-11 | 华为终端有限公司 | Antenna and mobile terminal |
| TWI648906B (en) * | 2017-05-04 | 2019-01-21 | 啓碁科技股份有限公司 | Mobile device and antenna structure |
| CN110444877A (en) * | 2019-08-07 | 2019-11-12 | 浙江金乙昌科技股份有限公司 | A kind of 5G communication terminal antenna |
-
2005
- 2005-09-12 CN CNA200510102618XA patent/CN1783581A/en active Pending
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101308949B (en) * | 2007-05-17 | 2012-06-13 | 光宝科技股份有限公司 | Wide-band dipolar antenna |
| CN101308948B (en) * | 2007-05-17 | 2012-06-27 | 光宝科技股份有限公司 | Double by-pass circuit wide-band antenna |
| CN101359778B (en) * | 2007-07-30 | 2012-07-18 | 富士康(昆山)电脑接插件有限公司 | Antenna assembly piece |
| CN101420061B (en) * | 2007-10-24 | 2012-08-29 | 耀登科技股份有限公司 | Reverse-F type antennae |
| CN102148423A (en) * | 2010-02-10 | 2011-08-10 | 上海安费诺永亿通讯电子有限公司 | Method for improving coupling isolation between microstrip antennas |
| CN102340050A (en) * | 2010-07-16 | 2012-02-01 | 富士康(昆山)电脑接插件有限公司 | Multi-frequency antenna and multi-frequency antenna array |
| CN102117966A (en) * | 2011-03-17 | 2011-07-06 | 华为终端有限公司 | Printed antenna |
| CN102117966B (en) * | 2011-03-17 | 2013-12-04 | 华为终端有限公司 | Printed antenna |
| CN102810721A (en) * | 2011-06-03 | 2012-12-05 | 启碁科技股份有限公司 | Antenna with multiple resonance modes |
| CN104412450A (en) * | 2014-04-28 | 2015-03-11 | 华为终端有限公司 | Antenna and mobile terminal |
| TWI648906B (en) * | 2017-05-04 | 2019-01-21 | 啓碁科技股份有限公司 | Mobile device and antenna structure |
| CN110444877A (en) * | 2019-08-07 | 2019-11-12 | 浙江金乙昌科技股份有限公司 | A kind of 5G communication terminal antenna |
| CN110444877B (en) * | 2019-08-07 | 2021-02-26 | 浙江金乙昌科技股份有限公司 | 5G communication terminal antenna |
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