CN102347526A - Double-frequency antenna - Google Patents
Double-frequency antenna Download PDFInfo
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- CN102347526A CN102347526A CN2010102461574A CN201010246157A CN102347526A CN 102347526 A CN102347526 A CN 102347526A CN 2010102461574 A CN2010102461574 A CN 2010102461574A CN 201010246157 A CN201010246157 A CN 201010246157A CN 102347526 A CN102347526 A CN 102347526A
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Abstract
The invention provides a double-frequency antenna. The double-frequency antenna comprises a feed part, a radiating body and a grounding part which are arranged on the first surface of a substrate, wherein the feed part is used for feeding an electromagnetic wave signal; the radiating body is connected with the feed part, is used for radiating the electromagnetic wave signal and comprises an inverted F-shaped radiating part, a C-shaped radiating part and a parasitic microstrip line; the inverted F-shaped radiating part comprises a first radiating part and a second radiating part which are mutually parallel as well as a third radiating part which is vertically connected with the first radiating part and the second radiating part; the third radiating part comprises a closed section and an opening section; the C-shaped radiating part is connected with the opening section of the third radiating section, and the opening of the C-shaped radiating part faces to the second radiating part; the parasitic microstrip line is of a strip shape and is vertically connected with the second radiating part; and the grounding part is connected with the radiating body. The double-frequency antenna can cover two frequency bands.
Description
Technical field
The present invention relates to antenna, relate in particular to a kind of dual-band antenna.
Background technology
Wireless communication field is used to various criterion has different band limits; Wherein, Micro-wave access global inter communication (World Interoperability for Microwave Access; WiMAX) frequency range that standard covered has 2.3GHz～2.4GHz; 2.496GHz～2.690GHz and 3.3GHz～3.8GHz; (Wireless Fidelity, Wi-Fi) frequency range that standard covered has 2.412GHz～2.472GHz and 5.170GHz～5.825GHz to WiMAX.The frequency that goes out of a kind of aerial radiation of structure often is merely able to cover some single frequency band in the prior art, covers if realize multiband, just must use multiple structure different antennas to cover a plurality of frequency ranges.The occupied area of antenna just certainly will increase in Wireless Telecom Equipment like this, does not meet the development trend of current Wireless Telecom Equipment miniaturization.So how under the band limits that satisfies the different wireless communication standard, designing microstrip antenna with less area then is a major challenge, also is that current industry is badly in need of improved target.
Summary of the invention
In view of this, a kind of antenna need be provided, cover to realize multiband.
The dual-band antenna that embodiment of the present invention provided is arranged on the substrate, and said dual-band antenna comprises feeding portion, radiant body and grounding parts, and wherein, said radiant body comprises the shape of falling F Department of Radiation, C shape Department of Radiation and parasitic microstrip line.Feeding portion is arranged at the first surface of said substrate, is used for the feed-in electromagnetic wave signal.Radiant body links to each other with said feeding portion, is arranged at the first surface of said substrate, is used for the radiated electromagnetic wave signal.The shape of falling F Department of Radiation comprise first Department of Radiation that is parallel to each other, second Department of Radiation and with all vertical the 3rd Department of Radiation that links to each other of said first Department of Radiation and said second Department of Radiation, said the 3rd Department of Radiation comprises closed section and open segment.C shape Department of Radiation is connected with the said open segment of said the 3rd Department of Radiation, and opening is towards said second Department of Radiation.Parasitic microstrip line is elongated, with said vertical linking to each other of second Department of Radiation.Grounding parts is arranged at the first surface of said substrate, and links to each other with said radiant body.
Preferably, said the 3rd Department of Radiation is said closed section between said first Department of Radiation and said second Department of Radiation, extends to said open segment from said closed section to the direction away from said second Department of Radiation.
Preferably, the width of the said open segment of said the 3rd Department of Radiation is greater than the width of said closed section.
Preferably, said parasitic microstrip line is parallel with said the 3rd Department of Radiation.
Preferably, said parasitic microstrip line extends to said first Department of Radiation, and forms the gap between the two.
Preferably, the other end of said parasitic microstrip line extends to said C shape Department of Radiation, and forms the gap between the two.
Preferably; Said C shape Department of Radiation comprises the 5th Department of Radiation, the 6th Department of Radiation and the 7th Department of Radiation, and wherein, said the 5th Department of Radiation and said the 6th Department of Radiation are parallel to each other; Said the 7th Department of Radiation and said vertical linking to each other of the 5th Department of Radiation, the other end and said vertical linking to each other of the 6th Department of Radiation.
Preferably, said the 5th Department of Radiation is connected with the said open segment of said the 3rd Department of Radiation, and is parallel to each other between said the 5th Department of Radiation, said the 6th Department of Radiation and the said parasitic microstrip line.
Preferably, said feeding portion is square, and is electrical connected with said the 3rd Department of Radiation.
Preferably, surround jointly by the said open segment of said second Department of Radiation, said the 3rd Department of Radiation, said C shape Department of Radiation and said parasitic microstrip line and form the shape of falling F headroom district.
The mode that above-mentioned dual-band antenna adopts the shape of falling F Department of Radiation, C shape Department of Radiation and strip Department of Radiation to combine can cover a plurality of frequency ranges, satisfies requirements of different users.
Description of drawings
Fig. 1 is the overall schematic of dual-band antenna 100 in an embodiment of the present invention.
Fig. 2 is the local enlarged diagram of dual-band antenna 100 in an embodiment of the present invention.
Fig. 3 and Fig. 4 are the dimensional drawing of dual-band antenna 100 in an embodiment of the present invention.
Fig. 5 is the return loss resolution chart of dual-band antenna 100 in an embodiment of the present invention.
The main element symbol description
Dual-band antenna 100
The shape of falling F Department of Radiation 200
First Department of Radiation 201
Second Department of Radiation 202
The 3rd Department of Radiation 203
Closed section 203a
C shape Department of Radiation 300
The 5th Department of Radiation 205
The 6th Department of Radiation 206
The 7th Department of Radiation 207
Embodiment
See also Fig. 1, be depicted as the overall schematic of dual-band antenna 100 in an embodiment of the present invention.In this execution mode, dual-band antenna 100 is arranged on the substrate, comprises feeding portion 10, radiant body 20 and grounding parts 30.Feeding portion 10 is square, is arranged at the first surface of substrate, is used for the feed-in electromagnetic wave signal.
See also Fig. 2, be depicted as the local enlarged diagram of dual-band antenna 100 in an embodiment of the present invention.In this execution mode, radiant body 20 links to each other with feeding portion 10, is arranged at the first surface of substrate, is used for the radiated electromagnetic wave signal, comprises the shape of falling F Department of Radiation 200, C shape Department of Radiation 300 and parasitic microstrip line 204.
The shape of falling F Department of Radiation 200 comprise first Department of Radiation 201 that is parallel to each other, second Department of Radiation 202 and with all vertical the 3rd Department of Radiation 203 that links to each other of first Department of Radiation 201 and second Department of Radiation 202.The 3rd Department of Radiation 203 comprises closed section 203a and open segment 203b, and closed section 203a extends to open segment 203b from closed section 203a to the direction away from second Department of Radiation 202 between first Department of Radiation 201 and second Department of Radiation 202.In this execution mode, the width of the open segment 203b of the 3rd Department of Radiation 203 is greater than the width of closed section 203a, and the 3rd Department of Radiation 203 is electrical connected with feeding portion 10.
C shape Department of Radiation 300 is connected with the open segment 203b of the 3rd Department of Radiation 203, and opening is towards second Department of Radiation 202.In this execution mode, C shape Department of Radiation 300 comprises the 5th Department of Radiation 205, the 6th Department of Radiation 206 and the 7th Department of Radiation 207.The 5th Department of Radiation 205 and the 6th Department of Radiation 206 are parallel to each other, an end of the 7th Department of Radiation 207 and 205 vertical linking to each other of the 5th Department of Radiation, the other end and 206 vertical linking to each other of the 6th Department of Radiation.In this execution mode, the 5th Department of Radiation 205 is connected with the open segment 203b of the 3rd Department of Radiation 203, and is parallel to each other between the 5th Department of Radiation 205, the 6th Department of Radiation 206 and the parasitic microstrip line 204.In this execution mode, the other end of parasitic microstrip line 204 extends to C shape Department of Radiation 300, and forms gap 204b with it.Open segment 203b, C shape Department of Radiation 300 and parasitic microstrip line 204 common encirclements by second Department of Radiation 202, the 3rd Department of Radiation 203 form the shape of falling F headroom district, by the closed section of first Department of Radiation 201, second Department of Radiation 202, the 3rd Department of Radiation 203 and parasitic microstrip line 204 jointly encirclement form rectangle headroom district.
In this execution mode, because having formed, the shape of falling F Department of Radiation 200, C shape Department of Radiation 300 and the 204 common encirclements of parasitic microstrip line are the shape of falling F headroom district and rectangle headroom district, can make radiant body 20 can give off the electromagnetic wave signal of two frequency ranges.
In this execution mode, grounding parts 30 is arranged at the first surface of substrate, and links to each other with radiant body 20.
See also Fig. 3 and Fig. 4, be depicted as the dimensional drawing of dual-band antenna 100 in an embodiment of the present invention.
In this execution mode, dual-band antenna 100 is arranged on the substrate, and substrate is the FR4 circuit board, and length is 50mm, and width is 20mm.The length of feeding portion 10 and width are respectively 0.8mm and 0.8mm.Grounding parts 30 comprises that length is 37.3mm, and width is that rectangle part and the length of 20mm is 12mm, and width is the ledge of 2mm.The length of first Department of Radiation 201 and width are respectively 4.5mm and 1.7mm.The length of second Department of Radiation 202 and width are respectively 3.75mm and 0.5mm.The length of the 3rd Department of Radiation 203 is 10mm, and wherein, the width of the open segment 203b of the 3rd Department of Radiation 203 is 2mm, and the width of closed section 203a is 1.5mm.The length and the width of parasitic microstrip line 204 are respectively 8mm and 0.25mm.The length of the 5th Department of Radiation 205 and width are respectively 3mm and 0.5mm.The length of the 6th Department of Radiation 206 and width are respectively 2.5mm and 0.75mm.The length of the 7th Department of Radiation 207 and width are respectively 1.5mm and 1.5mm.
See also Fig. 5, be depicted as the return loss resolution chart of dual-band antenna 100 in an embodiment of the present invention.As shown in the figure, as the size of dual-band antenna 100 such as Fig. 3 and when shown in Figure 4, its return loss is being the 5.225GHz～5.825GHz in 3.3GHz～3.8GHz and the WiFi standard in the WiMAX standard less than-frequency range that 10dB covered, satisfies user's demand.From figure, can know; The frequency that the mode that combines through the setting shape of falling F Department of Radiation, C shape Department of Radiation and strip Department of Radiation in this execution mode can make antenna give off covers the 5.225GHz～5.825GHz frequency range in 3.3GHz in the WiMAX standard～3.8GHz frequency range and the WiFi standard, thereby satisfies user's demand.
The mode of dual-band antenna 100 in the embodiment of the present invention through adopting the shape of falling F Department of Radiation, C shape Department of Radiation and strip Department of Radiation to combine can cover a plurality of frequency ranges, satisfies requirements of different users.
Claims (10)
1. a dual-band antenna is arranged on the substrate, it is characterized in that, said dual-band antenna comprises:
Feeding portion is arranged at the first surface of said substrate, is used for the feed-in electromagnetic wave signal;
Radiant body links to each other with said feeding portion, is arranged at the first surface of said substrate, is used for the radiated electromagnetic wave signal, comprising:
The shape of falling F Department of Radiation, comprise first Department of Radiation that is parallel to each other, second Department of Radiation and with all vertical the 3rd Department of Radiation that links to each other of said first Department of Radiation and said second Department of Radiation, said the 3rd Department of Radiation comprises closed section and open segment;
C shape Department of Radiation be connected with the open segment of said the 3rd Department of Radiation, and opening is towards said second Department of Radiation; And
Parasitic microstrip line, elongated, with said vertical linking to each other of second Department of Radiation; And
Grounding parts is arranged at the first surface of said substrate, and links to each other with said radiant body.
2. dual-band antenna as claimed in claim 1; It is characterized in that; Said the 3rd Department of Radiation is said closed section between said first Department of Radiation and said second Department of Radiation, extends to said open segment from said closed section to the direction away from said second Department of Radiation.
3. dual-band antenna as claimed in claim 2 is characterized in that the width of the said open segment of said the 3rd Department of Radiation is greater than the width of said closed section.
4. dual-band antenna as claimed in claim 1 is characterized in that, said parasitic microstrip line is parallel with said the 3rd Department of Radiation.
5. dual-band antenna as claimed in claim 4 is characterized in that, an end of said parasitic microstrip line extends to said first Department of Radiation, and forms the gap between the two.
6. dual-band antenna as claimed in claim 5 is characterized in that, the other end of said parasitic microstrip line extends to said C shape Department of Radiation, and forms the gap between the two.
7. dual-band antenna as claimed in claim 1; It is characterized in that; Said C shape Department of Radiation comprises the 5th Department of Radiation, the 6th Department of Radiation and the 7th Department of Radiation; Wherein, Said the 5th Department of Radiation and said the 6th Department of Radiation are parallel to each other; One end of said the 7th Department of Radiation and said vertical linking to each other of the 5th Department of Radiation, the other end and said vertical linking to each other of the 6th Department of Radiation.
8. dual-band antenna as claimed in claim 7 is characterized in that, said the 5th Department of Radiation is connected with the open segment of said the 3rd Department of Radiation, and is parallel to each other between said the 5th Department of Radiation, the 6th Department of Radiation and the parasitic microstrip line.
9. dual-band antenna as claimed in claim 1 is characterized in that, said feeding portion is square, and is electrical connected with said the 3rd Department of Radiation.
10. dual-band antenna as claimed in claim 1 is characterized in that, is surrounded jointly by the said open segment of said second Department of Radiation, said the 3rd Department of Radiation, said C shape Department of Radiation and said parasitic microstrip line and forms the shape of falling F headroom district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010246157.4A CN102347526B (en) | 2010-08-05 | 2010-08-05 | Double-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010246157.4A CN102347526B (en) | 2010-08-05 | 2010-08-05 | Double-frequency antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102347526A true CN102347526A (en) | 2012-02-08 |
| CN102347526B CN102347526B (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010246157.4A Expired - Fee Related CN102347526B (en) | 2010-08-05 | 2010-08-05 | Double-frequency antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111355025A (en) * | 2018-12-20 | 2020-06-30 | 和硕联合科技股份有限公司 | Dual-frequency circularly polarized antenna structure |
| TWI740601B (en) * | 2020-08-10 | 2021-09-21 | 國立高雄科技大學 | Label antennae for installation in conductive materials |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1507113A (en) * | 2002-12-06 | 2004-06-23 | ������������ʽ���� | Pattern antenna |
| CN201038319Y (en) * | 2007-04-27 | 2008-03-19 | 富港电子（东莞）有限公司 | Multi-frequency antenna |
| CN101297440A (en) * | 2005-10-25 | 2008-10-29 | 索尼爱立信移动通信日本株式会社 | Multiband antenna device and communication terminal device |
| CN101677148A (en) * | 2008-09-16 | 2010-03-24 | 鸿富锦精密工业（深圳）有限公司 | Multifrequency antenna |
-
2010
- 2010-08-05 CN CN201010246157.4A patent/CN102347526B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1507113A (en) * | 2002-12-06 | 2004-06-23 | ������������ʽ���� | Pattern antenna |
| CN101297440A (en) * | 2005-10-25 | 2008-10-29 | 索尼爱立信移动通信日本株式会社 | Multiband antenna device and communication terminal device |
| CN201038319Y (en) * | 2007-04-27 | 2008-03-19 | 富港电子（东莞）有限公司 | Multi-frequency antenna |
| CN101677148A (en) * | 2008-09-16 | 2010-03-24 | 鸿富锦精密工业（深圳）有限公司 | Multifrequency antenna |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111355025A (en) * | 2018-12-20 | 2020-06-30 | 和硕联合科技股份有限公司 | Dual-frequency circularly polarized antenna structure |
| CN111355025B (en) * | 2018-12-20 | 2022-05-27 | 和硕联合科技股份有限公司 | Dual-band circularly polarized antenna structure |
| TWI740601B (en) * | 2020-08-10 | 2021-09-21 | 國立高雄科技大學 | Label antennae for installation in conductive materials |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102347526B (en) | 2014-01-22 |
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Granted publication date: 20140122 Termination date: 20190805 |
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