CN201282193Y - Millimeter-wave quasi light integration dielectric lens antenna and array thereof - Google Patents

Millimeter-wave quasi light integration dielectric lens antenna and array thereof Download PDF

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CN201282193Y
CN201282193Y CNU200820163086XU CN200820163086U CN201282193Y CN 201282193 Y CN201282193 Y CN 201282193Y CN U200820163086X U CNU200820163086X U CN U200820163086XU CN 200820163086 U CN200820163086 U CN 200820163086U CN 201282193 Y CN201282193 Y CN 201282193Y
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array
antenna
dielectric lens
lens
dielectric
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阮树成
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阮树成
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Abstract

The utility model relates to the technical field of radars, in particular to a millimeter wave quasi-optical integrated dielectric lens antenna and an array thereof. The millimeter wave quasi-optical integrated dielectric lens antenna comprises a micro-strip integrated antenna, a dielectric lens, an objective lens, an array base, a reflecting mirror, a shield and a wave beam switcher; one end surface of the dielectric lens is in the shape a hemisphere or an ellipsoid, and the other end surface thereof adopts a cylindrical section; the micro-strip integrated antenna is generated by the dielectric substrates; the front side which is tightly stuck on the cylindrical section of the dielectric lens serves as a feed source; the back side is grounded; the semi-sphere or ellipsoid end surface of the dielectric lens servrs as an antenna radiating surface; the length of the cylindrical part of the dielectric lens can be changed; the antenna array is designed as a line array or a surface array; the array base and the reflecting mirror adopt cone-shaped quasi-optical reflecting mirror surfaces; the focal point of the objective lens of the line array or the surface array is aligned with the center line of the dielectric lens; the shield is arranged outside; and the antenna array is controlled by the wave beam switcher. The antenna structure has the advantages of strong anti-shake property and dustproof property, and is suitable for receiving/transmitting sense of radars and telecommunication devices of millimeter wave airplanes, automobiles and ships.

Description

毫米波准光集成介质透镜天线及其阵列 Quasi-optical millimeter-wave dielectric lens antenna and integrated array

技术领域 FIELD

本实用新型涉及通信和雷达天线技术领域,具体是一种毫米波准光集成介质透镜天线及其阵列。 The present invention relates to the field of communications and radar antenna technology, in particular a quasi-optical millimeter-wave dielectric lens antenna and integrated array. 背景技术 Background technique

毫米波通信和雷达天线常用喇叭辐射天线、抛物面反射型卡塞格伦天线、 微带天线等类型,毫米波高端频率波段的喇叭天线结构尺寸相对很小的,加工制造困难,价格昂贵。 Conventional millimeter wave communication and radar antenna radiating horn antenna, a parabolic reflector-type Cassegrain antenna, a microstrip type antenna, etc., the millimeter wave high frequency bands of the horn antenna structure size is relatively small, manufacturing is difficult and expensive. 而且,配馈拋物面反射型卡格天线跟踪机动目标,机械传动扫描速度慢,精度较差,在恶劣环境中使用故障率高,如装备在汽车的防撞雷达环境尘土飞扬,振动强烈,温差大,要求天线传感具备极高的环境适应性,犹如"眼睛"每时每刻须在复杂环境中看清楚路面发生的各种情况,实时避免碰撞。 Further, with the feed parabolic antenna tracking maneuvering target type Kage, slow scanning speed mechanical transmission, poor precision and high failure in harsh environments, such as in an automobile collision avoidance radar equipment dusty environment, strong vibration, temperature difference requiring antenna sensor with a high environmental adaptability, like "eyes" all the time required to look at a variety of road situations that occur in complex environments, real-time to avoid a collision. 此外,毫米波微带天线由于工作波长短,馈元尺寸小、基片介质损耗大,要得到高增益天线窄波束的方向性,简单地搬用微波微带天线技术结构是难以实现的。 Further, since the length of the millimeter wave microstrip antenna operating wavelength, the small size of the feed element, a large dielectric loss substrate, to obtain a high gain antenna having a directivity narrower beam, simply copying of microwave technology microstrip antenna structure is difficult to achieve. 发明内容 SUMMARY

本实用新型的目的是提供具有准光高斯束辐射特性的一种毫米波准光集成介质透镜天线及其阵列。 The object of the present invention to provide quasi-optical millimeter-wave integrated to have a dielectric lens antenna array radiation characteristics and quasi-optical Gaussian beams.

本实用新型技术方案,由微带集成天线、介质透镜、物镜、阵列基座、反射镜、防护罩、波束转换开关构成,介质透镜一端面是半球或椭球,另一端面是圆柱体截面,微带集成天线是由双面金属层介质基片生成,其正面至少由单个微带贴片馈元或双偶极振子或对数振子或螺旋振子为馈元,紧密粘置在介质透镜的圆柱截面为馈源,背面金属层接地,介质透镜半球或椭球端面为天线辐射面,介质透镜的圆柱体部分长度可改变,天线阵列设成线阵或面阵,阵列基座、反射镜呈圆锥形准光反射镜面,介质透镜固定在阵列基座上,线阵或面阵 Aspect of the present invention, a microstrip integrated antenna, a dielectric lens, an objective lens, the base array, a mirror, guard beam switch configuration, a dielectric lens is hemispherical or ellipsoidal end face, the other end face is a cylindrical cross-section, integrated microstrip antennas are generated by a double-sided metal layer of the dielectric substrate, at least its front side microstrip patch fed by a single-or double-dipole or logarithmic spiral transducer or transducers of the feed element, disposed in closely adhered cylindrical dielectric lens a feed section, a metal-layer ground back surface, a hemispherical dielectric lens antenna or radiating end surface ellipsoid, the length of the cylindrical portion of the dielectric lens can be changed, the antenna array is set to linear or planar array, the array base, a conical mirror shaped quasi-optical mirror, a dielectric lens fixed to the base array, a linear array or area array

物镜焦点对准介质透镜中心线,外置防护罩,天线阵列由波束转换开关控制; Focus lens center of the lens medium, an external protective cover, the antenna beam is controlled by a switch array;

其中,介质透镜的半球或椭球及圆柱体由芯体和外表匹配层合成,芯体材料是由硅或石英、聚四氟乙烯介质制成,外表面由聚苯乙烯塑料紧密包封为共形匹配层; Wherein the dielectric lens and a hemispherical or ellipsoidal cylinder, the core material is made of a core and an outer matching layer made of silicon or quartz, Teflon synthetic medium, the outer surface of polystyrene plastic is closely co-encapsulated matching layer;

波束转换开关它是在天馈鳍线波导设置两个以上的PIN管或场效应晶体管芯片串、并联组合成单刀单掷开关,PIN管或场效应晶体管偏置控制电压通过低通滤波网络接入。 Beam switch which is disposed a PIN diode, or two or more field effect transistor chip antenna feeder string fin line waveguide into the parallel combination of SPST switches, PIN diode or a field effect transistor bias control voltage through a low pass filter network access .

本实用新型技术方案的天线具有准光高斯束辐射特性,高效传输,频率响应极宽,可在毫米波至亚毫米波范围具有很高的天线增益和尖锐的波束方向性, 通过改变圆柱体长度可控制天线增益和波束方向性的大小,能适应不同场合要求使用,其结构机械性能坚固,对温度变化不敏感,防尘抗污染性能强,使用寿命长,复制性好,批量生产成本低。 The antenna of the present invention having a quasi-optical aspect of the Gaussian beam radiation characteristic, efficient transmission, very wide frequency response, may have a high antenna gain and sharp directivity beam in the millimeter wave to sub-millimeter range, by varying the length of the cylinder may control the beam size of the antenna gain and directivity, can adapt to different situations require, sturdy structure mechanical properties, is not sensitive to temperature variations, dust and strong anti-pollution performance, long life, good reproducibility and low cost mass production. 附图说明 BRIEF DESCRIPTION

图1本实用新型集成介质透镜天线结构示意图 Invention integrated lens antenna structure diagram of FIG medium 1

图2集成介质透镜天线阵列结构示意图图3集成介质透镜天线辐射方向图图4天线波束转换开关电路具体实施方法 FIG 2 integrated dielectric lens antenna array structure diagram of Figure 3 integrated dielectric lens antenna radiation directions of antenna beams of FIG. 4 switch circuit specific embodiment of the method

参照图l、图2,本实用新型具体实施方法和实施例,由微带集成天线5、 介质透镜1、物镜7、阵列基座9、反射镜8、防护罩10、波束转换开关11构成, 介质透镜1一端面是半球或椭球2,另一端面是圆柱体3截面,微带集成天线5 是由双面金属层介质基片4生成,其正面至少由单个微带贴片馈元或双偶极振子或对数振子或螺旋振子为馈元,紧密粘置在介质透镜1的圆柱体3截面为馈源,背面金属层6接地,介质透镜1的半球或椭球2端面为天线辐射面,介质透镜l的圆柱体3部分长度可改变,天线阵列设成线阵或面阵,阵列基座9、反射镜8呈圆锥形准光反射面,介质透镜1固定在阵列基座9上,线阵或面阵物镜7焦点对准介质透镜1中心线,外置防护罩10,天线阵列由波束转换开关11 控制。 Referring to FIG. L, FIG. 2, the specific embodiment of the present invention methods and embodiments, a microstrip integrated antenna 5, a dielectric lens, an objective lens 7, an array of base 9, the mirror 8, the shield 10, switch 11 is switched beam configuration, a dielectric lens is a hemisphere or a spheroid end surface 2, the other end face of the cylinder 3 is a cross-sectional, microstrip integrated antenna 5 is generated by a double-sided metal layer of the dielectric substrate 4, at least the front side microstrip patch fed by a single-membered or dual dipole elements or the number of transducers or a helical element of the feed element, tightly adhered disposed in the cylinder body 3 shaped dielectric lens 1 is feed ground back metal layer 6, dielectric lens hemispherical or ellipsoidal 1 2 end surface antenna radiation surface 3 of the cylinder portion of the length l of the dielectric lens can be changed, the antenna array is set to linear or planar array, the array base 9, the mirror 8 quasi-conical light reflecting surface, the dielectric lens array 1 is fixed on the base 9 , linear or area array 7 of the objective lens 1 in focus dielectric lens centerline, the external shield 10, the antenna array control switch 11 by the beam.

图3,本实用新型毫米波准光集成介质透镜天线辐射方向图,纵坐标表示为天线相对功率增益(dB),横坐标表示为其介质透镜天线波束方向性大小e (°), 改变圆柱体长度可得到不同的增益和波束,如图所示的天线增益、波束是一例典型值。 3, the present invention is quasi-optical millimeter-wave integrated dielectric lens antenna radiation pattern, the ordinate represents the relative power of the antenna gain (dB), the abscissa represents the dielectric lens for an antenna beam directivity size e (°), changing the cylinder different gain and the length of the beam is obtained, as shown in FIG antenna gain, beam are typical one case. 由于椭球焦点较半球为远,点源射线受其折射后平行辐射,容易获得窄波束辐射的方向性。 Since the focus of the ellipsoid is far more hemisphere, subject to parallel ray point source of radiation refracted beam radiation readily obtain a narrow directivity.

图4,本实用新型天线波束转换开关电路,它是控制汽车防撞雷达收/发两用准光集成介质透镜天线阵列,按车辆行驶路面车道量在车体前、后方向设置左、中、右6个波束循环扫描,警戒主车道危险目标,预警左、右车道潜在危险目标,天线介质基片微带集成天线双偶极振子粘置在介质透镜的圆柱体截面为馈源,用来作辐射源,模拟集成天线的无穷厚介质基片,消除表面波,改变圆柱体长度获得准光辐射方向性,物镜焦点对准介质透镜半球面体中心轴线, 高斯束辐射进一步得到窄波束高辨力的方向性。 4, the present invention is the antenna beam switch circuit, which is controlled automotive collision avoidance radar receiver / transmitter integrated dual collimation dielectric lens antenna array, according to the vehicle travels the road before the vehicle lane amount, rear left direction, in 6 the right beam scanning cycles, main road hazard warning target, warning the left and right lane potentially dangerous targets, the antenna dielectric substrate microstrip dipole antenna integrated oscillator disposed in a cylindrical cross-section adhered to the dielectric lens feed, used as the radiation source, the analog integrated antenna infinitely thick medium substrate, eliminating wave, quasi-optical changing the cylinder length of the radiation directivity is obtained, the objective lens focus hemispherical dielectric lens body central axis, a Gaussian beam radiation further narrow beam of high resolution power directionality. 介质透镜芯体表面所设置共形聚苯乙烯匹配层为1/4工作波长入相匹配,以消除与空气接触界面产生的反射。 Dielectric lens core surface provided conformal polystyrene matching layer is 1/4 the working wavelength matched to eliminate reflections and air generated by the contact interface. 波束转换开关是在天馈波导设置由两个以上的PIN管或场效应晶体管芯片 Beam switch is provided by two or more PIN diode or FET chip on day feeding waveguides

串、并、串联的单刀单掷开关SPST,天线阵列单元之间有较高的隔离度,它由数字信号处理器DSP输出按车道编码脉冲分配序列循环扫描转换波束开关,达到切换各车道波束的控制,循环扫描多个车道探测路障目标,当汽车行驶在高速公路时通过路况摄像传感器信号在雷达信号处理器DSP控制为"多选一"开关工作模式,即按一个车道发射一个波束照射路面。 Series, and the series of SPST SPST, a higher degree of isolation between the antenna array unit, it is assigned sequence loop beam scan conversion by the encoding pulse switch as lane digital signal processor DSP outputs, to switch the beam of each lane control, a plurality of lane detection roadblocks cyclic scan target, when the vehicle is traveling on a highway, "a multi-select" switch in the operating mode the radar signal processor (DSP) controlled by a traffic signal image sensor, i.e., transmit a beam by irradiating a road lane. 汽车行驶在单个车道路面时据路况摄像传感器DSP控制变为单一波束检测。 According to the traffic control becomes a single DSP image sensor detects the beam in a single lane road cars. 本实用新型天线回波接收在道路直线行驶有良好的方位角度分辨力,在道路弯曲或坡较大行驶时也能控制天线波束较低旁辨,水平方向空域视野开阔,方位角分辨精度高,透镜天线抗振和防尘能力强。 Echo receiving antenna of the present invention in the straight running road azimuth angle with good resolution, but also to control the antenna beam next lower resolution, the horizontal spatial vision when the road slope or curved with a large, high-resolution azimuthal accuracy, lens antenna strong vibration and dust resistance. 控制信号经过低通滤波网络接入PIN管或场效应晶体管芯片, 能防止毫米波射频RF进入控制电路DSP。 Control signal is low pass filtered network access PIN diode or FET chip can be prevented from entering the millimeter wave (RF) control circuit DSP.

基于毫米波所对应载频波长准光集成介质透镜天线口径尺寸小,增益高, 介质透镜性能稳定,机械结构牢固。 Based on the millimeter wave carrier frequency corresponding to the wavelength of the integrated quasi-optical dielectric lens antenna aperture of small size, high gain, stable dielectric lens performance, solid mechanical structure. 天线准光高斯束辐射传输效率高,收/发互易性强,造价低,广泛适用于飞机、汽车、船只及地面固定场合毫米波雷达和通信设备。 Quasi-optical Gaussian beam by a high antenna radiation efficiency transmission, receive / transmit reciprocity, low cost, is widely used in aircraft, automobiles, ships and ground fixed communication device and millimeter-wave radar applications.

Claims (3)

1、一种毫米波准光集成介质透镜天线及其阵列其特征在于:由微带集成天线、介质透镜、物镜、阵列基座、反射镜、防护罩、波束转换开关构成,介质透镜一端面是半球或椭球,另一端面是圆柱体截面,微带集成天线是由双面金属层介质基片生成,其正面至少由单个微带贴片馈元或双偶极振子或对数振子或螺旋振子为馈元,紧密粘置在介质透镜的圆柱截面为馈源,背面金属层接地,介质透镜半球或椭球端面为天线辐射面,介质透镜的圆柱体部分长度可改变,天线阵列设成线阵或面阵,阵列基座、反射镜呈圆锥形准光反射镜面,介质透镜固定在阵列基座上,线阵或面阵物镜焦点对准介质透镜中心线,外置防护罩,天线阵列由波束转换开关控制。 A quasi-optical millimeter-wave dielectric lens antenna and integrated array comprising: a microstrip integrated antenna, a dielectric lens, an objective lens, the base array, a mirror, guard beam switch configuration, the end face is a dielectric lens hemispherical or ellipsoidal, cylindrical cross-section is the other end face, microstrip integrated antenna is generated by a double-sided metal layer of the dielectric substrate, at least its front side microstrip patch fed by a single-or double-dipole transducers or logarithmic spiral, or feeding element of the transducer, disposed in cylindrical sections tightly adhered to the dielectric lens feed back grounded metal layer, a hemispherical dielectric lens antenna or radiating end surface ellipsoid, the length of the cylindrical portion of the dielectric lens may be changed into an antenna array line array or an area array, an array of the base, the conical mirror form quasi-optical mirror, a dielectric lens fixed to the base array, a linear array or area array focus lens center of the lens medium, an external protective cover, the antenna array beam control switch.
2、 根据权利要求l所述的毫米波准光集成介质透镜天线及其阵列,其特征在于:介质透镜的半球或椭球及圆柱体由芯体和外表匹配层合成,芯体材料是由硅或石英或聚四氟乙烯介质制成,外表面由聚苯乙烯塑料紧密包封为共形匹配层。 2, quasi-optical millimeter-wave dielectric lens antenna and an integrated array of claim l, wherein: the dielectric lens and a hemispherical or ellipsoidal cylinder synthesized from the core and the outer matching layer, the core material is made of silicon made of quartz or Teflon, or medium, the outer surface of polystyrene plastic encapsulated closely conformal matching layer.
3、 根据权利要求l所述的毫米波准光集成介质透镜天线及其阵列,其特征在于:波束转换开关是在天馈鳍线波导设有两个以上的PIN管或场效应晶体管芯片串、并、串联组合成单刀单掷开关,PIN管或场效应晶体管芯片控制偏置电压经低通滤波网络接入。 3. The quasi-optical millimeter-wave dielectric lens antenna and an integrated array of claim l, wherein: the beam switch is provided with two or more PIN diode or FET chip antenna feeder string fin line waveguide, and, to a series combination of SPST switches, PIN FET chip tube or control the bias voltage via the low-pass filter network access.
CNU200820163086XU 2008-08-28 2008-08-28 Millimeter-wave quasi light integration dielectric lens antenna and array thereof CN201282193Y (en)

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