CN103618136A - Ring-encircled wideband coplanar antenna - Google Patents
Ring-encircled wideband coplanar antenna Download PDFInfo
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- CN103618136A CN103618136A CN201310547088.4A CN201310547088A CN103618136A CN 103618136 A CN103618136 A CN 103618136A CN 201310547088 A CN201310547088 A CN 201310547088A CN 103618136 A CN103618136 A CN 103618136A
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- rectangular metal
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Abstract
The invention discloses a ring-encircled wideband coplanar antenna. The ring-encircled wideband coplanar antenna includes a substrate, a square-shaped frame radiating patch, an impedance matching input transmission line, a left rectangular metal grounding plate, a right rectangular metal grounding plate and an opening metal ring; the square-shaped frame radiating patch, the impedance matching input transmission line, the left rectangular metal grounding plate, the right rectangular metal grounding plate and the opening metal ring are arranged on the substrate; the opening metal ring is provided with a downward opening; the square-shaped frame radiating patch is located inside the opening metal ring; the left end of the opening metal ring is connected with the upper right end of the left rectangular metal grounding plate; the right end of the opening metal ring is connected with the upper left end of the right rectangular metal grounding plate; the lower end of the impedance matching input transmission line, the lower end of the left rectangular metal grounding plate and the lower end of the right rectangular metal grounding plate are connected with the bottom end of the substrate. The ring-encircled wideband coplanar antenna of the invention is advantageous in stable radiation characteristic, low loss, wide frequency band, small and simple structure, low cost, and convenient integration.
Description
Technical field
The present invention relates to antenna, relate in particular to a kind of annulus and surround the coplanar antenna of shape wideband.
Background technology
Antenna is the indispensable part of institute's wire/wireless communication system, bear the signal that transmitter is sent and changing into electromagnetic form with to spatial, or become high-frequency signal to receive for receiver the electromagnetic signal development of evil in febrile disease in free space, thereby realize the spacing wave exchange process of radio communication.Development along with wireless communication technology, the continuous progress of hardware research and development condition, in order to realize better the transmission of wireless signal, to also having higher requirement in the performance of antenna, under the overall situation of current Wireless Telecom Equipment extensive use, the importance of antenna grows with each passing day especially, and the requirement of the research of various antenna technologies and higher technical indicator makes antenna technology welcome the major opportunity of another development.
In order to adapt to bandwidth requirement more and more higher in current wireless telecommunications, the design that improves microstrip antenna narrow-band characteristic also becomes one of important research topic.Microstrip antenna have volume little, be convenient to structure the formation, planar structure, be convenient to integrated, be convenient to and the many advantages such as carrier is conformal, these advantages just broadband system are needed.Therefore how to develop miniaturization, planar structure, low cost, high performance broadband microstrip antenna, also become the research direction of domestic and international researcher emphasis.
Summary of the invention
The invention provides a kind of annulus and surround the coplanar antenna of shape wideband, technical scheme is as follows:
Annulus surrounds the coplanar antenna of shape wideband and comprises substrate, square box radiation patch, impedance matching input transmission line, left side rectangular metal ground plate, right side rectangular metal ground plate, open metal annulus; Substrate is provided with square box radiation patch, impedance matching input transmission line, left side rectangular metal ground plate, right side rectangular metal ground plate, open metal annulus; Open Side Down for open metal annulus, and it is inner that square box radiation patch is positioned at open metal annulus, and open metal annulus left end is connected with left side rectangular metal ground plate upper right side, and open metal annulus right-hand member is connected with right side rectangular metal ground plate left upper end; Impedance matching input transmission line upper end is connected with square box radiation patch lower end, and impedance matching input transmission line lower end, rectangular metal ground plate lower end, left side, rectangular metal ground plate lower end, right side are connected with substrate bottom.
Described substrate is glass-epoxy material, and the length of substrate is 40mm～42mm, and width is 45mm～47mm.The outer length of side of described square box radiation patch is 11mm～12mm, and the interior length of side is 7mm～8mm.The length of described impedance matching input transmission line is 13mm～14mm, and width is 4mm～5mm.Described left side rectangular metal ground plate is identical with the dimensional parameters of right side rectangular metal ground plate, and length is 17mm～18mm, and width is 11mm～12mm.The exradius of described open metal annulus is 14mm～15mm, and central angle is 316 °～318 °; Interior radius of circle is 12.5mm～13.5mm, and central angle is 333 °～335 °.
Annulus of the present invention surrounds in the coplanar antenna working band of shape wideband has stable radiation characteristic, and loss is low, broadband, and simple in structure small-sized, cost is low, is convenient to integrated.
Accompanying drawing explanation
Fig. 1 is the structural representation that annulus surrounds the coplanar antenna of shape wideband;
Fig. 2 is the S parametric plot that annulus surrounds the coplanar antenna of shape wideband;
Fig. 3 is the E surface radiation directional diagram of antenna when 4.58GHz;
Fig. 4 is the H surface radiation directional diagram of antenna when 4.58GHz;
Fig. 5 is the E surface radiation directional diagram of antenna when 6.95GHz;
Fig. 6 is the H surface radiation directional diagram of antenna when 6.95GHz.
Embodiment
As shown in Figure 1, the coplanar antenna of annulus encirclement shape wideband comprises substrate 1, square box radiation patch 2, impedance matching input transmission line 3, left side rectangular metal ground plate 4, right side rectangular metal ground plate 5, open metal annulus 6; Substrate 1 is provided with square box radiation patch 2, impedance matching input transmission line 3, left side rectangular metal ground plate 4, right side rectangular metal ground plate 5, open metal annulus 6; Open Side Down for open metal annulus 6, square box radiation patch 2 is positioned at open metal annulus 6 inside, open metal annulus 6 left ends are connected with left side rectangular metal ground plate 4 upper right sides, and openings metal ring 6 right-hand members are connected with right side rectangular metal ground plate 5 left upper ends; Impedance matching input transmission line 3 upper ends are connected with square box radiation patch 2 lower ends, and impedance matching input transmission line 3 lower ends, rectangular metal ground plate 4 lower ends, left side, rectangular metal ground plate 5 lower ends, right side are connected with substrate 1 bottom.
Described substrate 1 is glass-epoxy material, and the length of substrate 1 is 40mm～42mm, and width is 45mm～47mm.The outer length of side of described square box radiation patch 2 is 11mm～12mm, and the interior length of side is 7mm～8mm.The length of described impedance matching input transmission line 3 is 13mm～14mm, and width is 4mm～5mm.Described left side rectangular metal ground plate 4 is identical with the dimensional parameters of right side rectangular metal ground plate 5, and length is 17mm～18mm, and width is 11mm～12mm.The exradius of described open metal annulus 6 is 14mm～15mm, and central angle is 316 °～318 °; Interior radius of circle is 12.5mm～13.5mm, and central angle is 333 °～335 °.
embodiment 1
Annulus surrounds the coplanar antenna of shape wideband:
Select the glass-epoxy material that dielectric constant is 4.4 to make micro-belt substrate, thickness is 1.5mm.The length of substrate is 40mm, and width is 45mm.The outer length of side of square box radiation patch is 11mm, and the interior length of side is 7mm.The length of impedance matching input transmission line is 13mm, and width is 4mm.Left side rectangular metal ground plate is identical with the dimensional parameters of right side rectangular metal ground plate, and length is 17mm, and width is 11mm.The exradius of open metal annulus is 14mm, and central angle is 316 °; Interior radius of circle is 12.5mm, and central angle is 333 °.The property indices that annulus surrounds the coplanar antenna of shape wideband adopts CST software to test, and the S parameter curve of gained is as accompanying drawing 2.As seen from the figure ,-working frequency range below 10dB is 4.28GHz～9.0GHz.Fig. 3-4 are depicted as E face and the H face directional diagram of antenna when 4.58GHz, as seen from the figure, when frequency is 4.58GHz, gain as 3.1dBi, and half power lobe width is 97.6 °.Fig. 5-6 are depicted as E face and the H face directional diagram of antenna when 6.95GHz, as seen from the figure, when frequency is 6.95GHz, gain as 2.5dBi, and half power lobe width is 59.7 °.
Claims (6)
1. annulus surrounds the coplanar antenna of shape wideband, it is characterized in that comprising substrate (1), square box radiation patch (2), impedance matching input transmission line (3), left side rectangular metal ground plate (4), right side rectangular metal ground plate (5), open metal annulus (6); Substrate (1) is provided with square box radiation patch (2), impedance matching input transmission line (3), left side rectangular metal ground plate (4), right side rectangular metal ground plate (5), open metal annulus (6); Open Side Down for open metal annulus (6), square box radiation patch (2) is positioned at open metal annulus (6) inside, open metal annulus (6) left end is connected with left side rectangular metal ground plate (4) upper right side, and openings metal ring (6) right-hand member is connected with right side rectangular metal ground plate (5) left upper end; Impedance matching input transmission line (3) upper end is connected with square box radiation patch (2) lower end, and impedance matching input transmission line (3) lower end, left side rectangular metal ground plate (4) lower end, right side rectangular metal ground plate (5) lower end are connected with substrate (1) bottom.
2. a kind of annulus as claimed in claim 1 surrounds the coplanar antenna of shape wideband, it is characterized in that described substrate (1) is glass-epoxy material, and the length of substrate (1) is 40mm～42mm, and width is 45mm～47mm.
3. a kind of annulus as claimed in claim 1 surrounds the coplanar antenna of shape wideband, it is characterized in that the outer length of side of described square box radiation patch (2) is 11mm～12mm, and the interior length of side is 7mm～8mm.
4. a kind of annulus as claimed in claim 1 surrounds the coplanar antenna of shape wideband, it is characterized in that the length of described impedance matching input transmission line (3) is 13mm～14mm, and width is 4mm～5mm.
5. a kind of annulus as claimed in claim 1 surrounds the coplanar antenna of shape wideband, it is characterized in that described left side rectangular metal ground plate (4) is identical with the dimensional parameters of right side rectangular metal ground plate (5), length is 17mm～18mm, and width is 11mm～12mm.
6. a kind of annulus as claimed in claim 1 surrounds the coplanar antenna of shape wideband, it is characterized in that the exradius of described open metal annulus (6) is 14mm～15mm, and central angle is 316 °～318 °; Interior radius of circle is 12.5mm～13.5mm, and central angle is 333 °～335 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310547088.4A CN103618136A (en) | 2013-11-07 | 2013-11-07 | Ring-encircled wideband coplanar antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310547088.4A CN103618136A (en) | 2013-11-07 | 2013-11-07 | Ring-encircled wideband coplanar antenna |
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| CN103618136A true CN103618136A (en) | 2014-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310547088.4A Pending CN103618136A (en) | 2013-11-07 | 2013-11-07 | Ring-encircled wideband coplanar antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108258387A (en) * | 2016-12-28 | 2018-07-06 | 上海圣丹纳电子科技股份有限公司 | A kind of mobile unit antenna of closed loop configuration |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020122010A1 (en) * | 2000-08-07 | 2002-09-05 | Mccorkle John W. | Electrically small planar UWB antenna apparatus and related system |
| CN1168182C (en) * | 1998-05-28 | 2004-09-22 | 阿尔卡塔尔公司 | Radiocommunications device, and slot loop antenna |
| CN202662814U (en) * | 2012-06-01 | 2013-01-09 | 中国计量学院 | Multi-slot coplanar ultra-wideband microstrip antenna |
| CN202662799U (en) * | 2012-06-25 | 2013-01-09 | 中国计量学院 | Diamond coplanar multi-band micro-strip antenna |
-
2013
- 2013-11-07 CN CN201310547088.4A patent/CN103618136A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1168182C (en) * | 1998-05-28 | 2004-09-22 | 阿尔卡塔尔公司 | Radiocommunications device, and slot loop antenna |
| US20020122010A1 (en) * | 2000-08-07 | 2002-09-05 | Mccorkle John W. | Electrically small planar UWB antenna apparatus and related system |
| CN202662814U (en) * | 2012-06-01 | 2013-01-09 | 中国计量学院 | Multi-slot coplanar ultra-wideband microstrip antenna |
| CN202662799U (en) * | 2012-06-25 | 2013-01-09 | 中国计量学院 | Diamond coplanar multi-band micro-strip antenna |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108258387A (en) * | 2016-12-28 | 2018-07-06 | 上海圣丹纳电子科技股份有限公司 | A kind of mobile unit antenna of closed loop configuration |
| CN108258387B (en) * | 2016-12-28 | 2023-09-05 | 上海圣丹纳无线科技有限公司 | Vehicle-mounted equipment antenna with closed-loop structure |
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Application publication date: 20140305 |