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2019 IEEE Conference on Antenna Measurements & Applications (CAMA)最新文献

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Bandwidth Enhancement Substrate Integrated Waveguide (SIW) Antenna V-Shape Slot for X Band Application 用于X波段应用的带宽增强基板集成波导(SIW)天线v形槽
Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959813
Anshari Akbar, F. Zulkifli, E. Rahardjo
Substrate Integrated Waveguide (SIW) antenna is a planar form of conventional waveguide antenna. SIW is designed to reduce the size and cost of rectangular waveguide (RWG) and make it easy to be integrated with planar component. There are many studies on SIW antennas have been carried out to improve bandwidth, one of the methods used is designing the slot model of SIW. This study discusses the efforts to increase the bandwidth of the antenna using the SIW dual Slot V shape Antenna facing out towards the center line SIW. The antenna is designed at a frequency of 10 GHz. Based on the simulation results obtained bandwidth of 803 MHz, and the measurement results of 780 MHZ. While the results of the radiation pattern simulation obtained an antenna gain of 8.7dB and the measurement results obtained at 9.52 dB.
基片集成波导(SIW)天线是传统波导天线的平面形式。矩形波导的设计是为了减小矩形波导的尺寸和成本,使其易于与平面元件集成。为了提高带宽,人们对SIW天线进行了大量的研究,其中一种方法就是设计SIW的缝隙模型。本研究讨论了使用面向中线SIW的双槽V形天线来增加天线带宽的努力。天线的设计频率为10ghz。根据仿真结果得到的带宽为803 MHz,而实测结果为780 MHz。而辐射方向图仿真结果得到的天线增益为8.7dB,测量结果为9.52 dB。
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引用次数: 2
Improving the Angular Resolution of a Scanning Radar with Imperfectly Known Antenna Patterns 提高天线方向图不完全已知的扫描雷达的角分辨率
Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959779
Romain Fouenilloux, L. Ferro-Famil, S. Mérie, Olivier Lacrouts
This paper proposes a technique able to improve the angular resolution of a scanning radar, i.e. to discriminate the responses of objects located in the main beam of the radar scan, in the extreme case of an unknown antenna pattern. The blind estimation of the effective antenna scattering features is conducted in the angular spectral domain, exploiting the principle of circular convolution. Angular resolution improvement may be achieved through numerous techniques, and a well-known deconvolution approach, called the Richardson-Lucy iterative techniques, is used in this study for illustration purposes. The effectiveness of the proposed approach is demonstrated using both simulated signals and real acquisitions performed using an X-Band maritime navigation radar designed within the Diades Marine company. Results indicate that applying deconvolution techniques using erroneous antenna diagrams leads to numerous false alarms and globally poor discrimination performance. The proposed technique permits to overcome this limitation and reaches comparable to the ones obtained in the case of an ideal antenna diaaram.
本文提出了一种能够提高扫描雷达的角分辨率的技术,即在天线方向图未知的极端情况下,区分位于雷达扫描主波束中的物体的响应。利用圆卷积原理,在角谱域对有效天线散射特性进行盲估计。角分辨率的提高可以通过许多技术来实现,并且在本研究中使用了一种众所周知的反卷积方法,称为Richardson-Lucy迭代技术,用于说明目的。采用Diades Marine公司设计的x波段海上导航雷达进行模拟信号和实际采集,证明了所提出方法的有效性。结果表明,使用错误天线图的反褶积技术会导致大量误报和全局差的识别性能。所提出的技术允许克服这一限制,并达到与在理想天线diaaram的情况下获得的相当的效果。
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引用次数: 1
Broadband RF Attenuation Standards for Traceability of Antenna and EMC Measurements in Japan 日本天线和电磁兼容测量溯源的宽带射频衰减标准
Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959583
A. Widarta
Attenuation standards in the frequency range of 9 kHz to 50 GHz have been established at the National Metrology Institute of Japan (NMIJ/AIST) for ensuring traceability of antenna and EMC measurements in Japan. The standards were realized by two originally developed precision attenuation measurement systems based on the intermediate frequency (IF) substitution method. The first system works in the frequency range of 9 kHz to 1 GHz, built in the highest accuracy dual channel null detection configuration using an inductive voltage divider (IVD) at 1 kHz as IF reference standard. The second system functions to extend the frequency range of 1 GHz to 50 GHz, built in a simple single channel configuration using a step attenuator at 30 MHz as IF reference standard. Traceability of the IVD is obtained directly to the Japan national standard of low-frequency voltage ratio, however, the traceability of the step attenuator standard is obtained through calibration using the first system. Attenuation calibration and measurement capabilities range from 0 to 110 dB with a frequency range of 9 kHz to 50 GHz and an expanded uncertainty range of 0.002 dB to 0.068 dB.
日本国家计量研究所(NMIJ/AIST)制定了9 kHz至50 GHz频率范围内的衰减标准,以确保日本天线和EMC测量的可追溯性。这些标准是由最初开发的两套基于中频替代法的精密衰减测量系统实现的。第一个系统工作在9 kHz至1 GHz的频率范围内,内置高精度双通道零检测配置,使用1 kHz的电感分压器(IVD)作为中频参考标准。第二个系统的功能是将1 GHz的频率范围扩展到50 GHz,内置在一个简单的单通道配置中,使用30 MHz的阶跃衰减器作为中频参考标准。IVD的可追溯性直接与日本低频电压比国标挂钩,而阶跃衰减器标准的可追溯性则是通过使用第一个系统进行校准获得的。衰减校准和测量能力范围为0至110 dB,频率范围为9 kHz至50 GHz,扩展不确定度范围为0.002 dB至0.068 dB。
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引用次数: 0
Design of MIMO Antennas for 5G C-band/WLAN Operation in the Laptop Computer 笔记本电脑5G c波段/WLAN操作的MIMO天线设计
Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959684
Ming-Han Liang, Yu-ren Chen, Wen‐Shan Chen
The paper presents a design of 5G C-band and WLAN MIMO antennas for laptop computers. There are two sets of MIMO antennas operating at 5G C-band with a loop antenna operating at WLAN and acting as an isolation device between two sets. The set of MIMO antennas is designed with a coupled-fed meandered loop located at the top edge of the display ground. Loop antenna is placed between two sets of MIMO antennas. The MIMO antennas can cover the 5G C-band (3.3–3.8 GHz). The loop antenna resonates the band of WLAN. The MIMO antennas size is 12 × 75 × 4 mm3 and the loop antenna size is 15.8. × 15.8 mm3. And the antennas implemented on 0.8mm thick substrate of FR-4. The size of the system ground made of copper sheet with a thickness of 0.1 mm is 200 × 310 mm2.
提出了一种笔记本电脑用5G c波段和WLAN MIMO天线的设计方案。有两组MIMO天线在5G c波段工作,环路天线在WLAN工作,并作为两组之间的隔离装置。MIMO天线组在显示地面的上边缘设计了一个耦合馈电弯曲环路。环形天线位于两组MIMO天线之间。MIMO天线可以覆盖5G c波段(3.3-3.8 GHz)。环形天线在无线局域网的频段内谐振。MIMO天线尺寸为12 × 75 × 4mm3,环形天线尺寸为15.8。× 15.8 mm3。天线实现在0.8mm厚的FR-4基板上。系统接地采用0.1 mm厚度的铜片,其尺寸为200 × 310 mm2。
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引用次数: 2
Stacked Interdigital Filtering Antenna with Slant Polarization 倾斜极化叠加数字间滤波天线
Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959695
Dwi Astuti Cahyasiwi, F. Zulkifli, E. Rahardjo
The studies of the filtering antenna have performed many methods and type of resonators used in co-design between the filter and antenna. But none of them using the interdigital resonator with a via through hole. Interdigital resonator with a via through hole has a unique characteristic for it is short-circuited at one end and open circuited at the other. This condition is expected to have an effect to the electric field and the surface current direction. This paper performs a second order of the interdigital filter co-design with a proximity fed rectangular patch antenna. The simulation shows that the interdigital resonator with a via through hole affects the polarization of the antenna from a vertical polarization alter to a slant polarization. The design is fabricated and measured, both the simulation and measurement show a good agreement with a bandwidth of 330 Mhz at 4.65 GHz center frequency, maximum gain of 6.72 dBi and a −75° slant polarization.
对滤波天线的研究已经提出了多种滤波器与天线协同设计的方法和谐振器类型。但他们都没有使用带通孔的数字间谐振器。带通孔的数字间谐振器具有一端短路,另一端开路的独特特性。这种情况预计会对电场和表面电流方向产生影响。本文进行了与邻近馈电矩形贴片天线的二阶数字间滤波器协同设计。仿真结果表明,带通孔的数字间谐振器使天线的极化由垂直极化转变为斜极化。仿真和测量结果表明,该设计在4.65 GHz中心频率下的带宽为330 Mhz,最大增益为6.72 dBi,倾斜极化为- 75°。
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引用次数: 3
Permeability Determination of Metallic Wires by a Method Combining Measurement and Computer Simulation 测量与计算机模拟相结合的金属导线磁导率测定方法
Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959616
Chi-Fang Huang, H. Chao
This work is to present a method combing measurement and computer simulation techniques to determine the relative permeability of metallic wires. By constructing a test bed on which the wire under evaluation, it is used to form a two-wire transmission line. The permeability is found out when its set value in the simulation model offers the same simulated characteristic impedance with the measured one on the test bed by a TDR (Time-Domain Reflectometry).
本文提出了一种结合测量和计算机模拟技术来测定金属丝相对磁导率的方法。通过搭建一个试验台,将待测导线置于其上,形成两线传输线。通过时域反射法(TDR)计算,当仿真模型中的渗透率设定值与试验台上的测量值具有相同的模拟特性阻抗时,即为渗透率。
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引用次数: 0
Zeroth-Order Resonator Based on Mushroom-like Structure for Liquid Mixture Concentration Sensing of Sodium Chloride Solution 基于蘑菇状结构的零阶谐振器用于氯化钠溶液混合液浓度传感
Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959565
Tanaporn Pechrkool, Nonchanutt Chudnooti, Nattapong Duangrit, S. Chaimool, P. Akkaraekthalin
This paper presents the liquid-mixture sensor using a zeroth-order resonator (ZOR) based on mushroom-like structure. The mushroom-like structure is designed using Jerusalem shape for reducing the size of a resonator and providing a high Q-factor that operating frequency at 5.90 GHz. By using the perturbation theory, each dielectric properties of the liquid-mixture affect to the resonance frequency. In this paper, four conditions, only zeroth-order resonator sensor, with empty Teflon tube, inserting deionized water and inserting Sodium Chloride solution (NaCl), are investigated the sensor performance with the reflection coefficient,| S11|, technique. The measured can classify the liquid under test (LUT) by detecting the resonant frequency change of the reflection coefficient,| S11|. The zeroth-order resonator sensor also offers other advantages, e.g., non-destructive method, real-time monitoring and no life-cycle limitation.
本文提出了一种基于蘑菇状结构的零阶谐振器(ZOR)的液体混合传感器。蘑菇状结构采用耶路撒冷形状设计,以减小谐振器的尺寸,并提供高q因子,工作频率为5.90 GHz。利用微扰理论分析了液-混合物的介电特性对谐振频率的影响。本文研究了仅零级谐振腔传感器、空聚四氟乙烯管、插入去离子水和插入氯化钠溶液(NaCl)四种条件下反射系数技术对传感器性能的影响。被测对象通过检测反射系数的谐振频率变化,对被测液体进行分类。零阶谐振器传感器还具有其他优点,例如,非破坏性方法,实时监控和无生命周期限制。
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引用次数: 3
Experimental Investigation of Active Antenna 有源天线的实验研究
Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959564
E. Shirokova, I. Shirokov
Further investigations in design and operation of the active RX-TX antenna are discussed in the paper. The design of active antenna is realized due to the use of regenerative reflective amplifier, which has an opened resonant system. This resonant system (microstrip patch) effectively radiates and receives the microwave. The experimental investigations in gain increasing of active RX-TX antenna are presented in this section of studies. It is shown the active antenna can operate in receiving and transmitting modes. No switching between these modes does need to be implemented. Described active antenna can operate in both modes simultaneously. The active antenna possesses the simplest design, it has perfect electrical characteristics, and in conjunction with mentioned above operation features one makes this active antenna irreplaceable in a lot of applications, first of all in transponder design of RFID system, in antenna array design etc.
本文对有源RX-TX天线的设计和运行进行了进一步的研究。采用开放式谐振系统的再生反射放大器实现了有源天线的设计。该谐振系统(微带贴片)有效地辐射和接收微波。本部分介绍了有源RX-TX天线增益增加的实验研究。实验结果表明,该有源天线可以在接收和发射两种模式下工作。不需要在这些模式之间进行切换。所述有源天线可同时在两种模式下工作。有源天线具有最简单的设计,它具有完善的电气特性,结合上述的工作特点,使有源天线在许多应用中不可替代,首先是在RFID系统的应答器设计,天线阵列设计等。
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引用次数: 1
Non-Resonant E-Field Coaxial Probe for Very Near and Near Field Measurements 用于近场和近场测量的非谐振e场同轴探头
Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959778
A. Katsuta, H. Arai, Masami Arai
This paper proposes a non-resonant E-field probe consisting of open ended semi-ridged cable with partly shorted by conductor strip. Non-resonant and electrically small coupling aperture do not affect measured antenna characteristics in very near and near filed measurement. The principle of its single polarization characteristic is explained by showing electric field distributions near the aperture and the coupling with measured antennas are also presented. We fabricate prototype probe by semi-ridge cable of 3.58mm in diameter and evaluate its antenna factor by Near-field to Far-field transformation(NFFFT).
本文提出了一种非谐振电磁场探头,该探头由开端半脊状电缆组成,部分被导体带短路。在极近场和近场测量中,非谐振和电小耦合孔径对被测天线特性没有影响。通过显示孔径附近的电场分布来解释其单极化特性的原理,并给出了与被测天线的耦合。利用直径为3.58mm的半脊状电缆制作了原型探头,并利用近场到远场变换(NFFFT)对其天线系数进行了评价。
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引用次数: 1
CNN Localization using AP Inverse Position Estimation 使用AP逆位置估计的CNN定位
Pub Date : 2019-10-01 DOI: 10.1109/CAMA47423.2019.8959663
S. Aikawa, Shinichiro Yamamoto, Takuma Muramatsu
This contribution focuses on indoor localization by Finger Print method using RSSI of wireless LAN access point (AP). In recent years, there are lively animated discussions on the localization methods using Deep Learning. We proposed Finger Print based on the Convolutional Neural Network (CNN). Establish the adjacency relationship among APs as a two-dimensional model and use it to make the CNN model for Finger Print localization. In order to confirm the improvement of the localization accuracy by this proposal, we verified by experimental data.
本文主要研究了基于无线局域网接入点(AP) RSSI的指纹定位方法。近年来,关于深度学习定位方法的讨论非常活跃。我们提出了基于卷积神经网络(CNN)的指纹识别方法。建立ap之间的邻接关系作为二维模型,并利用它来制作指纹定位的CNN模型。为了验证该方案对定位精度的提高,我们用实验数据进行了验证。
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引用次数: 5
期刊
2019 IEEE Conference on Antenna Measurements & Applications (CAMA)
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