CN104810606B - In a broadband dielectric resonator antenna - Google Patents

In a broadband dielectric resonator antenna Download PDF

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CN104810606B
CN104810606B CN201510108011.6A CN201510108011A CN104810606B CN 104810606 B CN104810606 B CN 104810606B CN 201510108011 A CN201510108011 A CN 201510108011A CN 104810606 B CN104810606 B CN 104810606B
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antenna
dielectric resonator
broadband
dielectric
ground
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CN104810606A (en
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洪劲松
卜婷婷
钟垒
罗超鸣
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电子科技大学
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Abstract

该发明公开了一种宽带介质谐振天线,属于天线技术领域。 The invention discloses a broadband dielectric resonator antennas belongs to the technical field of an antenna. 该天线包括:矩形接地金属板、设于接地金属版正上方刻蚀有缝隙的长方体辐射介质器、穿过接地金属板中心并深入到辐射介质器的同轴探针。 The antenna comprising: a rectangular ground plate, the ground metal plate disposed immediately above the slit etched rectangular parallelepiped radiating medium, a metal plate passes through the center of the ground and deep into the coaxial probe radiative dielectric filter. 通过在介质谐振器中刻蚀十字形缝隙以增加天线的带宽,在介质谐振器边缘刻蚀正方形缝隙以增加天线的增益。 By etching the cross-shaped slot in the dielectric resonator to increase the bandwidth of the antenna, slot etched in the dielectric resonator square edges to increase the gain of the antenna. 本发明天线结构简单,且具有较高的辐射效率。 The antenna structure of the present invention is simple, and has high radiation efficiency.

Description

一种宽带介质谐振天线 In a broadband dielectric resonator antenna

技术领域 FIELD

[0001]本发明属于天线领域,具体涉及一种宽带介质谐振天线。 [0001] The present invention belongs to the field of antennas, in particular to a broadband dielectric resonator antennas.

背景技术 Background technique

[0002]近年来,随着无线通信的发展,介质谐振天线的研宄受到广泛关注。 [0002] In recent years, with the development of wireless communication, a study based on dielectric resonator antenna attracted widespread attention. 在现有天线类型中,介质天线因其自身具有易于馈电、体积小、辐射效率高以及功率容量高等优点得到了广泛的关注和应用。 In the conventional type antenna, a dielectric antenna having easy due to its own feed, small size, high radiation efficiency and power capacity of the advantages obtained extensive attention and application. 通常情况下,介质谐振天线的带宽都非常窄,通常低于10 %。 Typically, the bandwidth of a dielectric resonator antenna are very narrow, typically less than 10%. 但是随着宽带通信设备的涌现,具有宽带宽特性的天线具有很重要的使用价值。 But with the emergence of broadband communication device, the antenna having a wide bandwidth characteristic has very important value. 因此,宽带介质谐振天线的研究具有实际意义。 Therefore, the study of broadband dielectric resonator antenna has a practical significance.

[0(^3]目前,国内外进行了一系列有关介质天线的宽带特性的研究并取得了一些成果。 所采用的方法包括使用寄生单元、使用特殊形状的介质谐振器、使用新型的馈电方法以及采用混合型天线结构。下面分别各举一例。在《IEEE TRANSATIONS ON ANTENNAS AND PROPAGATION》2007年第55卷5期论文“broadband dielectric resonator antenna with metal coating”中,通过在介质谐振器三个面上覆盖金属层,使得天线的带宽增加到47%, 但是天线的加工比较复杂。在《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》2008 年第7卷论文“H-shaped dielectric resonator antenna for wideband applications” 中,使用了一款H形的介质谐振器以实现天线的宽带特性,天线的带宽为62%,但是在这个设计中,天线调节阻抗匹配的方式不易于加工<3在《1£££ ANTENNAS AND WIRELESS PROPAGATION LETTERS》2009年第8卷论文“Investigation of a novel wideband fe [0 (^ 3] Currently, domestic and studied a series of wideband characteristics of the antenna and the media had some success. The methods used include the use of parasitic elements, the use of specially shaped dielectric resonator using the new feed the method and the use of hybrid type antenna structure. give an example below, respectively. in the "IEEE TRANSATIONS oN aNTENNAS aND PROPAGATION" 2007, vol. 55 5 paper "broadband dielectric resonator antenna with metal coating" by three plane dielectric resonator overlying the metal layer, such that the bandwidth of the antenna to 47%, but the process is more complex antenna. in "IEEE aNTENNAS AND WIRELESS PROPAGATION LETTERS", 2008 Vol. 7 paper "H-shaped dielectric resonator antenna for wideband applications", a of an H-shaped dielectric resonator antenna to achieve a wideband characteristic bandwidth of the antenna is 62%, but in this design, the impedance matching antenna adjustment manner easy to process <3 "1 £££ aNTENNAS AND WIRELESS PROPAGATION LETTERS "2009 No. 8 roll paper" Investigation of a novel wideband fe eding technique for dielectric resonator antenna”中,采用L型的馈电结构对圆环形介质谐振器馈电,实现了天线的宽带性能。在《IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS》2008年第7卷论文“Design and implementation of an ultrawideband hybrid skirt monopole dielectric resonator antenna”中通过将单极子天线和介质谐振天线结合,实现了天线的超宽带性能。 eding technique for dielectric resonator antenna ", the use of L-type feed structure of circular dielectric resonator fed, to achieve broadband performance of the antenna. In" IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS ", 2008 Vol. 7 Paper" Design and implementation of an ultrawideband hybrid skirt monopole dielectric resonator antenna "in the dielectric resonator antenna and the monopole antenna by bonding, to achieve ultra wideband antenna performance.

发明内容 SUMMARY

[0004] 本发明的目的在于,提供一种宽带介质谐振天线,其特点是通过在介质谐振器中刻蚀十字形缝隙以增加天线的带宽,在介质谐振器边缘刻蚀正方形缝隙以增加天线的增益。 [0004] The object of the present invention is to provide a broadband dielectric resonator antenna, which is characterized by etching a slit in a cross-shaped dielectric resonator to increase the bandwidth of the antenna, the slot in the etching square edges to increase the dielectric resonator antenna gain. 本发明天线结构简单,且具有较高的福射效率。 The antenna structure of the present invention is simple, and has high emission efficiency blessing.

[0005] 本发明采用的技术方案为: [0005] aspect of the present invention is used are:

[0006] 一种宽带介质谐振天线,包括:矩形接地金属板、设于接地金属版正上方刻蚀有缝隙的长方体辐射介质器、穿过接地金属板中心并深入到辐射介质器的同轴探针,其特征在于:所述辐射介质器顶面为正方形、一角刻蚀有正方形缝隙、且开设有一与顶面对角线重合的贯穿顶面与底面的十字形缝隙的长方体辐射介质器,所述十字形缝隙的高度与正方形缝隙的高度高相等;所述十字形缝隙为中心对称结构。 [0006] in a broadband dielectric resonator antenna, comprising: a rectangular ground plate, the ground metal plate disposed immediately above the slit etched rectangular parallelepiped radiating medium, a metal plate passes through the center of the ground and deep into the radiation medium is a coaxial probe needle, wherein: said radiation medium is a square top surface, a square corner is etched slot, and defines a rectangular cross-shaped radiative dielectric gap through the top and bottom surfaces of a diagonal line of the top surface coincident, the height equal to the height of the square cross-shaped slit of said slits; the cruciform slit is symmetrical structure.

[0007] 所述十字形缝隙与正方形缝隙不连通。 The [0007] square cross slot is not in communication with the slit.

[0008] 所述同轴探针深入介质器的长度小于其边长。 [0008] The length of the dielectric coaxial probe depth is less than the side length thereof.

[0009] 本发明天线的十字形缝隙使得同轴探针可以在辐射介质器中激励起两个谐振频率,实现天线的宽带工作,正方形缝隙用以提高天线在高频段范围内的增益;同轴探针用以激励辐射介质器,实现天线的阻抗带宽。 [0009] The cross-shaped slot antenna of the present invention is such that the coaxial probe can be excited in a dielectric vessel radiation from the two resonant frequencies, the broadband operation of the antenna, the square slit to increase the antenna gain in the high frequency range; coaxially a probe for the excitation radiation medium, to achieve the impedance bandwidth of the antenna.

[0010] 与现有技术相比,本发明的优点在于: [0010] Compared with the prior art, advantages of the present invention:

[0011] (1)使用一个介质器实现了天线具有相对较宽的工作带宽,并且不仅有效地缩小了天线外观的体积,还降低了天线的加工成本。 [0011] (1) a medium implemented using an antenna having a relatively wide operating bandwidth, and not only reduces the effective volume of the antenna appearance, but also reduces the processing costs of the antenna.

[0012] (2)使用正方形介质器作为天线的辐射单元且刻蚀的缝隙都为规则形状,降低了天线的加工难度。 [0012] (2) using a square dielectric antenna radiating element as an etch crevice and regular shape, reduced processing difficulty antenna.

[0013] (3)采用同轴探针对天线馈电,避免了复杂的馈电网络,降低系统复杂性。 [0013] (3) coaxial antenna feed probe, to avoid the complex feeding network, reduce system complexity.

[0014] ⑷可以对天线各部分分别加工,且金属接地板1和同轴探针5可直接购买,然后采用玻璃胶将各部分链接为一体,更易于加工。 [0014] ⑷ can be processed separately for each part of the antenna, and the metal ground plate and a coaxial probe 5 can be purchased directly and then glue the glass portions of the link as a whole, easier to process.

附图说明 BRIEF DESCRIPTION

[0015] 图1为本发明实施例的俯视图; [0015] FIG 1 a top view of an embodiment of the present invention;

[0016] 图2为本发明实施例的A-A'截面图; [0016] FIG 2 cross-sectional view A-A of the embodiment of the present invention;

[0017] 图3为本发明实施例的回波损耗曲线图; [0017] FIG. 3 graph illustrating return loss of the embodiment of the present invention;

[0018] 图4为本发明实施例的增益曲线图; [0018] FIG 4 a graph of the gain to an embodiment of the present invention;

[0019] 图5为本发明实施例的辐射效率曲线图。 [0019] FIG. 5 radiation efficiency graphs of the embodiment of the present invention.

[0020] 附图标号说明:1 •接地金属版;2.辐射介质器;3 •十字形缝隙;4 •正方形缝隙;5 •同轴探针。 [0020] DESCRIPTION OF REFERENCE NUMERALS: 1 • grounding metal plate; 2 radiative dielectric filter; 3 • the cross-shaped slit; 4 • square slot; 5 • coaxial probe.

具体实施方式 Detailed ways

[0021] 下面结合附图对本发明的具体实施例的一种双频带圆极化介质天线作进一步详述。 [0021] The following drawings medium antenna for circularly polarized dual band embodiment of the present invention will be described in further detail in conjunction.

[0022] 如图1、图2所示,宽带介质谐振天线,包括介质金属板1,福射介质器2以及同轴探针5〇 [0022] FIG. 1 and FIG, 2 broadband dielectric resonator antenna, comprising 1, Fu 2 and the reflective media dielectric coaxial probe 5〇 metal plate

[0023] 辐射介质器2设于接地金属板1上方,同轴探针5穿过接地金属板1深入到辐射介质器2内部。 [0023] radiative dielectric 2 is disposed above the ground plate 1, a coaxial probe passing through the ground plate 5 1 2 deep into the interior of the radiation medium.

[0024] 福射介质器2的中心与接地金属板1的中心在垂直方向上重合。 [0024] Four reflective media center with the center of a grounded metal plate 2 is overlapped in the vertical direction. 本实例中,接地金属板1的尺寸为80mmX80mmXlmm。 In the present example, the size of the ground metal plate 1 is 80mmX80mmXlmm. 辐射介质器2的尺寸为4〇111111\4〇111111\24.5膽,辐射介质器2的介电常数为10。 2 medium size radiation is 4〇111111 \ 4〇111111 \ 24.5 bile, radiative dielectric permittivity is 2 to 10. 福射介质器2刻蚀有十字形缝隙3,由于十字形缝隙的存在,可以在福射介质器2内部激励起两个模式,实现天线的宽带工作。 Four reflective media 2 etched with cross slits 3, due to the presence of the cross-shaped slot can be excited in the medium inside Four exit 2 from two modes, broadband operation of the antenna. 十字形缝隙3的中心与辐射介质器2的中心在垂直方向上重合,十字形缝隙3的两条边长度和宽度相同,本实例中,十字形缝隙3的长度为22mm,宽度为2mm。 Media centers of the radiator 2 is a cross-shaped slit 3 is overlapped in the vertical direction, the cross-shaped slits with the same length and width two sides 3, in this example, the length of the cross-shaped slit 3 is 22mm, a width of 2mm. 辐射介质器2的一角如图所示,刻蚀有一正方形缝隙4,由于正方形缝隙4的存在,使得天线在工作频带的高频段范围内增益增加,本实例中,正方形缝隙4的边长为8mm。 Corner radiative dielectric filter shown in FIG. 2, a square etched with slits 4, 4 due to the presence of the slit the square, so that the antenna gain increases in the high frequency range of the operating frequency band, in this example, a square side length of the slot 4 is 8mm .

[0025] 同轴探针5的中心和辐射介质器2的中心、接地金属板1的中心在垂直方向上重合。 [0025] The center of the coaxial probe 5 and the center of the radiation medium 2, the center grounding plate 1 coincides in the vertical direction. 可通过调节同轴探针5深入到辐射介质器2中的尺寸,调节天线的阻抗带宽。 Coaxial probe 5 by adjusting the radiation deep into the vessel of the medium size 2, adjust the antenna impedance bandwidth. 本实例中,同轴探针5的深入到辐射介质器的长度为20mm。 In this example, coaxial probe 5 to the length of the radiation depth media filter is 20mm.

[0026]图3为本实例的阻抗带宽软件仿真结果,由图3可见,本发明有两个谐振频率,分别为2.45GHz和3.05GHz,天线阻抗带宽范围为2.2GHZ-3 • 52GHz,相对带宽为46 • 2%,因此,天线具有较宽的相对带宽。 [0026] Figure 3 impedance bandwidth software simulation results of the present example, Figure 3 shows, the present invention has two resonant frequencies, respectively, 2.45GHz and 3.05GHz, the impedance bandwidth of the antenna 2.2GHZ-3 • 52GHz, the relative bandwidth to 46 • 2%, thus, the antenna having a relatively wide bandwidth.

[0027] 如图4所示,本发明在2 • 2GHz-2.6GHz的范围内,天线的增益逐渐降低,在2.6GHz-3.47GHz的范围内,天线的增益稳定增加。 [0027] As shown in FIG. 4, the present invention is in the range of 2 • 2GHz-2.6GHz, the antenna gain decreases in the range of 2.6GHz-3.47GHz, a steady increase in gain of the antenna. 在整个工作频段内,天线的增益变化小于3dBi。 Over the entire operating frequency band, the antenna gain variation is less than 3dBi. [0028]由图5所示,本发明在天线的工作频段内,辐射效率都在85%以上,天线具有较高的辐射效率。 [0028] shown in FIG. 5, the present invention is in the operating band of the antenna, the radiation efficiency is more than 85%, the antenna having high radiation efficiency.

Claims (4)

1. 一种宽带介质谐振天线,包括:矩形接地金属板、设于接地金属版正上方刻蚀有缝隙的长方体辐射介质器、穿过接地金属板中心并深入到辐射介质器的同轴探针,其特征在于: 所述辐射介质器顶面为正方形、一角刻蚀有正方形缝隙、且开设有一与顶面对角线重合的贯穿顶面与底面的十字形缝隙的长方体辐射介质器,所述十字形缝隙的高度与正方形缝隙的高度高相等。 A broadband dielectric resonator antenna, comprising: a rectangular ground plate, the ground metal plate disposed immediately above the slit etched rectangular parallelepiped radiating medium, a metal plate passes through the center of the ground and deep into the radiation medium is coaxial probe characterized in that: said top surface radiative dielectric is a square corner of a square slot etching, and defines a rectangular cross-shaped radiative dielectric gap through the top and bottom surfaces of a diagonal line of the top surface coincident, the height equal to the height of the square cross-shaped slit gap.
2.如权利要求1所述的一种宽带介质谐振天线,其特征在于:所述十字形缝隙为中心对称结构。 2 in a broadband dielectric resonator antenna according to claim 1, wherein: said cross slit is symmetrical structure.
3.如权利要求1所述的一种宽带介质谐振天线,其特征在于:所述十字形缝隙与正方形缝隙不连通。 In a broadband dielectric resonator antenna according to claim 1, wherein: the cruciform slot with a square slot is not in communication.
4.如权利要求1所述的一种宽带介质谐振天线,其特征在于:所述同轴探针深入介质器的长度小于其边长。 4. A dielectric resonator in a broadband antenna according to claim 1, wherein: said dielectric coaxial probe depth is less than the length of the side length.
CN201510108011.6A 2015-03-12 2015-03-12 In a broadband dielectric resonator antenna CN104810606B (en)

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Citations (3)

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Publication number Priority date Publication date Assignee Title
CN1331856A (en) * 1998-09-09 2002-01-16 夸尔柯姆股份有限公司 Circularly polarized dielectric resonator antenna
CN1498445A (en) * 2000-03-11 2004-05-19 安蒂诺瓦有限公司 Multi-section medium resonator antenna
US7834815B2 (en) * 2006-12-04 2010-11-16 AGC Automotive America R & D, Inc. Circularly polarized dielectric antenna

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1331856A (en) * 1998-09-09 2002-01-16 夸尔柯姆股份有限公司 Circularly polarized dielectric resonator antenna
CN1498445A (en) * 2000-03-11 2004-05-19 安蒂诺瓦有限公司 Multi-section medium resonator antenna
US7834815B2 (en) * 2006-12-04 2010-11-16 AGC Automotive America R & D, Inc. Circularly polarized dielectric antenna

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