CN101689709A - 具有两个频率选择表面的导体 - Google Patents
具有两个频率选择表面的导体 Download PDFInfo
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- CN101689709A CN101689709A CN200880010363A CN200880010363A CN101689709A CN 101689709 A CN101689709 A CN 101689709A CN 200880010363 A CN200880010363 A CN 200880010363A CN 200880010363 A CN200880010363 A CN 200880010363A CN 101689709 A CN101689709 A CN 101689709A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/02—Refracting or diffracting devices, e.g. lens, prism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0018—Space- fed arrays
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0013—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective
- H01Q15/0026—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective said selective devices having a stacked geometry or having multiple layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/005—Antennas or antenna systems providing at least two radiating patterns providing two patterns of opposite direction; back to back antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
Abstract
公开了一种具有两个频率选择表面的天线。该天线包括:第一频率选择表面(FSS),其具有多个孔以形成网状物;第二FSS,其具有多个孔以形成网状物;以及理想电导体,其位于第一FSS和第二FSS之间。
Description
优先权声明
本申请依据美国法典第35篇119款(e)(1)要求于2007年3月29日提交的临时申请60/908712号的优先权,其内容通过引用合并于此。
技术领域
本发明一般性地涉及天线,尤其涉及具有两个频率选择表面的导体。
背景技术
在用于长距离点对点应用的微波中继系统(在常规系统中大量被掩埋光纤线缆所替代)以及最近的用于移动电话技术或蜂窝电话的扇区天线系统中,已经广泛利用了能够在不同方向上提供独立工作的天线系统。能够在不同方向上提供独立工作的天线系统通常大而且机械上复杂,并且由抛物面反射器(如在微波中继站中)或多金属结构(如在小区天线中)构成。类似地,在飞行器的外壳上和在用于电子束控制的大型相控阵结构中已经利用了平面天线。平面阵列尚未被用于在不同方向上需要独立工作的应用。
任何提供高表面电流阻抗的表面装置被称为高阻抗表面(HIS)。如果将电场天线置于靠近HIS处,其中该HIS包括靠近理想电导体(PEC)的频率选择表面(FSS),那么从HIS反射的能量会以和从HIS辐射出的能量相同的相位返回,由此放大该天线信号。这种装置允许使用像那些为印刷电路板开发的图案化和蚀刻技术来构造高效的、低剖面的平面天线和阵列。
发明内容
根据本发明的优选实施例,一种天线反射器系统包括第一频率选择表面(FSS)、第二FSS和理想电导体。尽管FSS结构变化并且可以采取多种形式,但是在所示出的实施中,第一FSS和第二FSS都具有多个孔(即,像网状物)。理想电导体位于第一FSS和第二FSS之间。
在下面的详细写出的说明中,本发明的所有特征和优点将变得明显。
附图说明
结合附图,参考下面对说明性实施例的详细说明,会最佳地理解本发明本身以及其优选使用模式、其它目的和优点,其中:
图1是根据本发明的优选实施例的具有多个频率选择表面和理想电导体的天线反射器系统的图示;
图2是根据本发明的优选实施例的背靠背的高阻抗表面的图示;以及
图3是根据本发明的优选实施例的四个独立天线子空间的图示。
具体实施方式
下面参考附图,尤其参考图1,描绘了根据本发明的优选实施例的具有多个频率选择表面(FSS)的天线反射器系统的图示。如图所示,双面天线反射器100包括位于FSS 112和FSS 115之间的理想电导体(PEC)110。如此处所使用的,PEC被定义为以最小电阻承载表面电流的任何导电平面,并且FSS被定义为通过任何方式提供正确的波阻抗以反射电磁波,使得反射波与入射波的相位基本上相同的任何表面。印刷线路板中的金属化层是PEC的一个例子。在图1中,例如FSS 115的FSS是用以孔(例如多个孔120a-120n)进行图案化以形成网状物的屏蔽面(例如金属化层)来实现的。
现在参考图2,其描绘了根据本发明优选实施例的双面天线反射器100上的背靠背高阻抗表面(HIS)的图示。如图所示,将PEC 110置于平行并且靠近FSS 112和FFS 115的位置,但不与FSS 112和FFS 115电接触。由平行且靠近第一HIS 200的第一天线210生成第一天线方向图(antenna pattern)211,由平行且靠近第二HIS 205的第二天线214生成第二天线方向图215。在靠近PEC 110的FSS 112的位置旁形成第一HIS 200。类似地,在靠近PEC 110的FSS 115的位置旁形成第二HIS 205。第一HIS 200和第二HIS 205能够以相同频率或以不同频率共振。
在可替选的实施例中,可以将分离的天线阵列置于第一HIS 200和第二HIS 205之上,并且每个天线阵列可以具有不同的控制(steering)和/或多输入多输出(MIMO)标准。在另一个实施例中,天线方向图210和215的工作频率相差足够远,使得能够去掉间隔导电平面(即,PEC110),从而减少金属化层的数量并降低总体天线系统成本。
现在参考图3,其描绘了根据本发明的优选实施例的四个独立天线子空间的图示。如图所示,由相互垂直放置以形成象限的两组背靠背HIS形成第一天线子空间300、第二天线子空间305、第三天线子空间310和第四天线子空间315。可替选地,可以以除90°之外的角度放置背靠背HIS。此外,可以利用多于两组的背靠背HIS以形成多于四个的独立天线子空间(例如,将空间划分为六个天线子空间的三个双面结构)。
如图3所示,由HIS 320和HIS 325限定第一天线子空间300。由HIS 330和HIS 335限定第二天线子空间305。由HIS 340和HIS 345限定第三天线子空间310。由HIS 350和HIS 355限定第四天线子空间315。最多四个不同天线(未示出)或最多四个不同天线阵列(未示出)能够独立工作,并且能够调整其相位使能量集中在子空间300、305、310和315内的任何角度。
如已经描述的,本发明提供具有频率选择表面的天线反射器系统。本发明使得能够将一个或多个天线整合在协调的天线系统中,从而相对于诸如喇叭形或抛物面反射器的常规背靠背天线装置提供显著的尺寸和成本优势。本发明使得能够制造对于诸如中继站和扇区天线系统的多种应用有用的低成本蚀刻印刷线路板天线反射器。本发明以常规天线反射器系统的部分成本提供很好的隔离(通常与背靠背抛物面反射器相关)。
尽管已经参考优选实施例示出并描述了本发明,但是本领域的技术人员会理解可以做出各种形式和细节的改变而不脱离本发明的精神和范围。
Claims (7)
1.一种天线,其包括:
第一频率选择表面FSS,其具有多个孔以形成网状物;
第二FSS,其具有多个孔以形成网状物;以及
理想电导体,其位于所述第一FSS和所述第二FSS之间。
2.根据权利要求1所述的天线,其中,所述理想电导体是以最小电阻承载表面电流的任何导电平面。
3.根据权利要求1所述的天线,其中,所述第一FSS和所述第二FSS是任何提供波阻抗以反射电磁波使得反射波与入射波基本上同相的表面。
4.根据权利要求1所述的天线,其中,所述理想电导体靠近所述第一FSS和所述第二FSS,但不与所述第一FSS和所述第二FSS电接触。
5.根据权利要求1所述的天线,其中,所述天线还包括第一天线,其位置与第一高阻抗表面平行靠近,用于产生第一天线方向图。
6.根据权利要求5所述的天线,其中,所述天线还包括第二天线,其位置与第二高阻抗表面平行靠近,用于产生第二天线方向图。
7.根据权利要求6所述的天线,其中,所述第一和第二高阻抗表面能够以相同频率或以不同频率共振。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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US90871207P | 2007-03-29 | 2007-03-29 | |
US60/908,712 | 2007-03-29 | ||
PCT/US2008/058606 WO2008121789A1 (en) | 2007-03-29 | 2008-03-28 | Conductor having two frequency-selective surfaces |
Publications (1)
Publication Number | Publication Date |
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CN101689709A true CN101689709A (zh) | 2010-03-31 |
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Application Number | Title | Priority Date | Filing Date |
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CN200880010363A Pending CN101689709A (zh) | 2007-03-29 | 2008-03-28 | 具有两个频率选择表面的导体 |
Country Status (6)
Country | Link |
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US (1) | US7990328B2 (zh) |
EP (1) | EP2140520A4 (zh) |
JP (1) | JP4982607B2 (zh) |
KR (1) | KR20090126294A (zh) |
CN (1) | CN101689709A (zh) |
WO (1) | WO2008121789A1 (zh) |
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CN102769201A (zh) * | 2012-06-29 | 2012-11-07 | 深圳光启创新技术有限公司 | 双频带通透波材料及其天线罩和天线系统 |
CN103004023A (zh) * | 2010-04-27 | 2013-03-27 | 格勒诺布尔综合理工学院 | 用于过滤多个频段的表面 |
CN103378421A (zh) * | 2012-04-27 | 2013-10-30 | 深圳光启创新技术有限公司 | 多天线组件及其无线移动互联设备 |
WO2015184867A1 (zh) * | 2014-09-15 | 2015-12-10 | 中兴通讯股份有限公司 | 一种镜面反射器和无线终端天线装置 |
CN105244619A (zh) * | 2015-11-12 | 2016-01-13 | 电子科技大学 | 双频带宽带频率选择表面 |
CN107425290A (zh) * | 2017-09-05 | 2017-12-01 | 杭州泛利科技有限公司 | 一种双边陡降带宽可调频率选择表面 |
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CN103004023A (zh) * | 2010-04-27 | 2013-03-27 | 格勒诺布尔综合理工学院 | 用于过滤多个频段的表面 |
CN103004023B (zh) * | 2010-04-27 | 2014-12-24 | 格勒诺布尔综合理工学院 | 用于过滤多个频段的表面 |
CN103378421A (zh) * | 2012-04-27 | 2013-10-30 | 深圳光启创新技术有限公司 | 多天线组件及其无线移动互联设备 |
CN102769201A (zh) * | 2012-06-29 | 2012-11-07 | 深圳光启创新技术有限公司 | 双频带通透波材料及其天线罩和天线系统 |
CN102769201B (zh) * | 2012-06-29 | 2016-06-22 | 深圳光启创新技术有限公司 | 双频带通透波材料及其天线罩和天线系统 |
WO2015184867A1 (zh) * | 2014-09-15 | 2015-12-10 | 中兴通讯股份有限公司 | 一种镜面反射器和无线终端天线装置 |
CN105244619A (zh) * | 2015-11-12 | 2016-01-13 | 电子科技大学 | 双频带宽带频率选择表面 |
CN105244619B (zh) * | 2015-11-12 | 2018-06-01 | 电子科技大学 | 双频带宽带频率选择表面 |
CN107425290A (zh) * | 2017-09-05 | 2017-12-01 | 杭州泛利科技有限公司 | 一种双边陡降带宽可调频率选择表面 |
CN107425290B (zh) * | 2017-09-05 | 2023-09-12 | 杭州泛利科技有限公司 | 一种双边陡降带宽可调频率选择表面 |
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EP2140520A4 (en) | 2012-01-04 |
JP2010522524A (ja) | 2010-07-01 |
EP2140520A1 (en) | 2010-01-06 |
KR20090126294A (ko) | 2009-12-08 |
JP4982607B2 (ja) | 2012-07-25 |
WO2008121789A1 (en) | 2008-10-09 |
US20080238801A1 (en) | 2008-10-02 |
US7990328B2 (en) | 2011-08-02 |
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