CN103337698A - Multi-frequency microstrip patch antenna - Google Patents
Multi-frequency microstrip patch antenna Download PDFInfo
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- CN103337698A CN103337698A CN2013102271889A CN201310227188A CN103337698A CN 103337698 A CN103337698 A CN 103337698A CN 2013102271889 A CN2013102271889 A CN 2013102271889A CN 201310227188 A CN201310227188 A CN 201310227188A CN 103337698 A CN103337698 A CN 103337698A
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- medium substrate
- impedance matching
- little band
- band medium
- incoming feeder
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Abstract
The invention discloses a multi-frequency microstrip patch antenna. The requirements are satisfied through slotting a triangular patch and arranging a radiation patch. The AnsoftHFSS software simulation result shows that four stopbands are formed in the frequency bands of 1.69-1.89 GHz, 2.13-2.97 GHz, 3.39-3.94 GHz and 5.09-7.23 GHz. The multi-frequency microstrip patch antenna has the characteristics of simple structure, small size, light weight, low profile, low cost, easiness in integration and batch processing, and the like, displays favorable radiation direction property within the whole working frequency band range, and can be widely used in mobile communication, a wireless local area network, a worldwide interoperability for microwave access network, a Bluetooth system and the like.
Description
Technical field
The invention belongs to mobile communication system and wireless communication field, be specifically related to a kind of four band microstrip paster antennas.
Background technology
High speed development along with modern communication systems and electronic technology, the volume of various communication apparatus constantly reduces, communication band is constantly to the development of broadband, high band, to the requirement of communication equipment also become more and more higher, thereby promoted the development of the antenna of one of the critical component as communication system.Microstrip antenna is as a kind of new antenna of studying the seventies in 20th century successfully, low with its section, volume is little, and is in light weight, is easy to microwave integrated circuit processing integrated, and be convenient to realize miniaturization, be widely used in radio astronomy, in the modern communicationses such as satellite communication and UWB.
In recent years, along with the particularly continuous development of mobile communication, Bluetooth system, wireless lan (wlan) and worldwide interoperability for microwave access network (WIMAX) of wireless communication technique, more and more stronger for the demand of the double frequency that can be integrated in the miniaturization on the portable terminal or multifrequency antenna.Because having caused widely, the above-mentioned advantage of microstrip antenna, printed monopole antenna pay close attention to, such as T shape, G shape, Y shape, L shaped etc.But they can only be applied to the single communication system, the antenna that also has some can be applied to WLAN and WIMAX system simultaneously also is suggested, but the complex structure of these antenna or size are unfavorable for the integrated of printed antenna more greatly, and radiation characteristic is bad, and its range of application is restricted.Therefore, be necessary very much to design the simple mobile terminal antenna of the miniaturization structure that possesses multiband or broadband character.
Summary of the invention
The object of the present invention is to provide a kind of multifrequency micro-strip paster antenna, realize simplified structure, reduce cost and size, increase frequency range, and can be operated in effects such as mobile communication system and WLAN, WIMAX, Bluetooth communication frequency range simultaneously, microstrip antenna structure is simple, volume is little in order to satisfy, in light weight, section is low, be easy to and technical characterstic that microwave integrated circuit processing is integrated.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is as follows:
A kind of multifrequency micro-strip paster antenna comprises little band medium substrate (1), impedance matching incoming feeder (5), rectangular metal radiant panel (6) and primary radiation unit (8); Primary radiation unit (8), impedance matching incoming feeder (5) and rectangular metal radiant panel (6) are printed on little band medium substrate (1) with on the one side; It is characterized in that: the length of little band medium substrate (1) is Ls, and wide is Ws; Described primary radiation unit (8) is on base and triangle patch (2) that little band medium substrate (1) top overlaps, cuts out the last part in a right angle dovetail groove (4) and dovetail groove (7) back; The height of described right-angled trapezium groove (4) is S, go up bottom side length is W3, and the top edge of upper base back gauge triangle patch (2) distance is H5, and the oblique waist of described right-angled trapezium groove (4) is positioned on the waist of three butt chocks (2);
The width of impedance matching incoming feeder (5) is Wf, and an end of impedance matching incoming feeder (5) links to each other as shown in Figure 1 with triangle patch (2) top, and the other end links to each other with little band medium substrate (1) bottom; Be respectively equipped with the rectangular metal radiant panel (6) contour with distance impedance matching incoming feeder (5) in the both sides in the equidistant gap of distance impedance matching incoming feeder (5); The side of two rectangular metal radiant panels (6) and base overlap respectively at side and the base of little band medium substrate (1), and the length of rectangular metal radiant panel (6) is Lg, the wide Wg of being;
The following Ls:47-48mm of described each parameter range; Ws:43-44mm; Lg:20-20.5mm; Wg:19-19.5mm; Wf:3.5-4mm; S:1.5-1.8mm; W1:16-18mm; W2:6-8mm; W3:25-25.5mm; W4:1.5-2mm; H1:5-7mm; H2:16-18mm; H3:12-13.5mm; H5:1-2mm;
Described little band medium substrate (1), triangle patch (2), impedance matching incoming feeder (5) and metal radiant panel (6) are symmetrically distributed along same vertical central axis.
By optimizing described right-angled trapezium groove (4) upper base edge lengths W3, antenna can be operated in the GSM1800 frequency range, and obtaining S11 is 1.69-1.89GHz less than the scope of-10dB.By optimizing the longitudinal length H3 of rectangular patch (3) part in the described primary radiation unit (8), realize that S11 is 3.39-3.94GHz less than the scope of-10dB.
The present invention adopts coplanar wave guide feedback, by three butt chocks flutings and in institute slots the method for interpolation parasitic patch make antenna can be operated in a plurality of frequency ranges simultaneously, and medium substrate adopts the FR4 material, make the present invention compared with prior art have the gain height, loss is low, and cost is low, and cross polarization characteristics and radial pattern are good, simple in structure, be convenient to advantages such as integrated.
Description of drawings
Fig. 1 is structural front view of the present invention;
Fig. 2 is the S11 Parameter Map after the Ansoft HFSS emulation;
Fig. 3 is the VSWR Parameter Map after the Ansoft HFSS emulation;
Among the figure: 1 little band medium substrate, 2 triangle patch, 3 rectangular patches, 4 right-angled trapezium grooves, 5 impedance matching incoming feeders, 6 rectangular metal radiant panels, 7 dovetail grooves, 8 primary radiation unit.
Embodiment
Below in conjunction with drawings and Examples the present invention is further detailed.
Basic thought of the present invention is the groove that utilizes katal setting shape on paster, realizes that antenna structure is simple, the characteristic of multifrequency.
Fig. 1 is the design's front view.The design's multifrequency micro-strip paster antenna, comprise little band medium substrate 1, be positioned at the primary radiation unit 8 of little band medium substrate 1 upper surface, impedance matching input transmission feeder 5, two rectangular metal radiant panels 6, it is characterized in that: the length of little band medium substrate (1) is adjustable in the 47-48mm scope, wide adjustable in the 43-44mm scope, being shaped as on triangle patch 2 of primary radiation unit 8, offer the high 1.5-1.8mm that is in the top edge 1-1.5mm scope apart from triangle patch 2 downwards, last bottom side length is the right-angled trapezium groove 4 of 25-25.5mm, and the waist of right-angled trapezium groove 4 is positioned on the waist of three butt chocks 2; The shape of the dovetail groove of offering at triangle patch 27 and position as shown in Figure 1, along longitudinal axis symmetry; Width is that an end of the impedance matching incoming feeder 5 of 3.5-4mm links to each other as shown in Figure 1 with triangle patch 2 tops, and the other end links to each other with little band medium substrate (1) bottom; Be respectively equipped with the rectangular metal radiant panel 6 contour with distance impedance matching incoming feeder 5 in the both sides in distance impedance matching incoming feeder 5 equidistant gaps, the length of rectangular metal radiant panel 6 is 20-20.5mm, and wide is 19-19.5mm; The side of two rectangular metal radiant panels 6 and base overlap respectively at side and the base of little band medium substrate 1; Primary radiation unit 8, impedance matching incoming feeder 5 and rectangular metal radiant panel 6 are printed on little band medium substrate 1 with on the one side; Little band medium substrate 1, triangle patch (2), impedance matching incoming feeder 5 and metal radiant panel 6 are symmetrically distributed along the longitudinal axis.
Trough of belt coplanar wave guide feedback paster microstrip antenna is by opening dovetail groove, quadrangle groove and adding rectangular patch and realize increasing frequency, spread spectrum in groove at three butt chocks, above structure working frequency comprises 1.69 ~ 1.89GHz, 2.13 ~ 2.97GHz, 3.39 ~ 3.94GHz, 5.09 ~ 7.23GHz.
Adopt the device shown in the accompanying drawing 1 to realize the multifrequency characteristic of antenna, and by the HFSS software emulation, draw simulation result such as accompanying drawing 2, shown in Figure 3, desired working frequency range satisfy S11＜-10dB, VSWR＜2.By opening right-angled trapezium groove 4 at triangle patch 2, in the 25-25.5m scope, change its base length W3, antenna can be worked, by HFSS emulation in the 1.69-1.89GHz frequency range, when W3 was set at 25mm, can obtain its working frequency range was 1.69-1.8GHz; When W3 was set at 25.2mm, obtaining its working frequency range was 1.71-1.85GHz; When W3 was set at 25.5mm, can obtain its working frequency range was 1.75-1.89mm.Hence one can see that, by changing the length on right-angled trapezium bottom land limit, antenna can be worked in the 1.69-1.89GHz frequency range.
Adopt the device shown in the accompanying drawing 1 to realize the multifrequency characteristic of antenna, by on triangle patch 2, opening dovetail groove 7, in the 12.9-14.5mm scope, change the size of H3, antenna can be worked in the 3.39-3.94GHz frequency range, by HFSS emulation, respectively H3 is set at 12.9mm, 13.5mm, 14.5mm, its working frequency range is 3.45-3.94GHz, 3.2-3.9GHz, 3.39-3.9GHz.Hence one can see that, by changing the size of H3, antenna can be worked in the 3.39-3.94GHz frequency range.
Adopt the device shown in the accompanying drawing 1 to realize the multifrequency characteristic of antenna, by in the 1.5-2mm scope, changing the size of W4, antenna can be worked, by HFSS emulation in the 3.39-3.94GHz frequency range, respectively W4 is set at 1.5mm, 1.8mm, 2mm, its working frequency range is 3.39-3.94GHz.
Below by reference to the accompanying drawings the specific embodiment of the present invention has been made explanation; and provide embodiment feasibility of the present invention has been described; but these explanations can not be construed as limiting the scope of the invention; protection scope of the present invention is limited by the claims of enclosing, and any change on claim of the present invention basis all is protection scope of the present invention.
Claims (2)
1. multifrequency micro-strip paster antenna comprises little band medium substrate (1), impedance matching incoming feeder (5), rectangular metal radiant panel (6) and primary radiation unit (8); Primary radiation unit (8), impedance matching incoming feeder (5) and rectangular metal radiant panel (6) are printed on little band medium substrate (1) with on the one side; It is characterized in that: the length of little band medium substrate (1) is Ls, and wide is Ws; Described primary radiation unit (8) is on base and triangle patch (2) that little band medium substrate (1) top overlaps, cuts out the last part in a right angle dovetail groove (4) and dovetail groove (7) back; The height of described right-angled trapezium groove (4) is S, go up bottom side length is W3, and the top edge of upper base back gauge triangle patch (2) distance is H5, and the oblique waist of described right-angled trapezium groove (4) is positioned on the waist of three butt chocks (2);
The width of impedance matching incoming feeder (5) is Wf, and an end of impedance matching incoming feeder (5) links to each other as shown in Figure 1 with triangle patch (2) top, and the other end links to each other with little band medium substrate (1) bottom; Be respectively equipped with the rectangular metal radiant panel (6) contour with distance impedance matching incoming feeder (5) in the both sides in the equidistant gap of distance impedance matching incoming feeder (5); The side of two rectangular metal radiant panels (6) and base overlap respectively at side and the base of little band medium substrate (1), and the length of rectangular metal radiant panel (6) is Lg, the wide Wg of being;
Described each parameter range is Ls:47-48mm; Ws:43-44mm; Lg:20-20.5mm; Wg:19-19.5mm; Wf:3.5-4mm; S:1.5-1.8mm; W1:16-18mm; W2:6-8mm; W3:25-25.5mm; W4:1.5-2mm; H1:5-7mm; H2:16-18mm; H3:12-13.5mm; H5:1-2mm;
Described little band medium substrate (1), triangle patch (2), impedance matching incoming feeder (5) and metal radiant panel (6) are symmetrically distributed along same vertical central axis.
2. multifrequency micro-strip paster antenna as claimed in claim 1, it is characterized in that: described little band medium substrate (1) is the FR4 material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102271889A CN103337698A (en) | 2013-06-08 | 2013-06-08 | Multi-frequency microstrip patch antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102271889A CN103337698A (en) | 2013-06-08 | 2013-06-08 | Multi-frequency microstrip patch antenna |
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| CN103337698A true CN103337698A (en) | 2013-10-02 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868232A (en) * | 2015-05-25 | 2015-08-26 | 华南理工大学 | Printing type multiband WLAN/WiMAX antenna with compact structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4012741A (en) * | 1975-10-07 | 1977-03-15 | Ball Corporation | Microstrip antenna structure |
| CN102664307A (en) * | 2012-05-18 | 2012-09-12 | 哈尔滨工业大学 | Slot-loaded multi-frequency printed antenna |
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2013
- 2013-06-08 CN CN2013102271889A patent/CN103337698A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4012741A (en) * | 1975-10-07 | 1977-03-15 | Ball Corporation | Microstrip antenna structure |
| CN102664307A (en) * | 2012-05-18 | 2012-09-12 | 哈尔滨工业大学 | Slot-loaded multi-frequency printed antenna |
Non-Patent Citations (3)
| Title |
|---|
| YINSHENG WEI等: "A Compact CPW-Fed Microstrip Patch Antenna Combining Koch Boundary and Triangle Slot", 《IEEE ICMMT 2010 PROCEEDINGS》 * |
| 毕丹宏: "新型超宽带微带天线的研究与设计", 《硕士学位论文》 * |
| 蔡润南，高嘉楠，刘晓峰: "印刷型多频缝隙天线的设计与实现", 《科学技术与工程》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104868232A (en) * | 2015-05-25 | 2015-08-26 | 华南理工大学 | Printing type multiband WLAN/WiMAX antenna with compact structure |
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Application publication date: 20131002 |