ID 原文 译文
13664 该阵列的实测2:1驻波带宽为19.8%, 方向图带宽为12.2%, 在方向图带宽内, 阵列的实测副瓣电平低于-16dB, 阵列的带内测试增益高于11.7dBi, 实测结果和理论设计相吻合, 表明该天线阵列适用于一维相控阵天线。 The measured 2:1 standing wave bandwidth of the array is 19.8%, and the pattern bandwidth is 12.2%.Within the bandwidth of the pattern, the measured sidelobe level of the array is lower than -16 dB, and the measured gain of the array is higher than 11.7 dBi. The measured results show that the array is suitable for the application of one-dimensional phased array.
13665 提出一种新型的基于超表面的低剖面宽带高增益透镜天线, 该透镜采用宽带的电偶极子天线作为馈源, 设计中心频率工作在10GHz。 This paper proposes a new low-profile high-gain wideband gradient refractive index (GRIN) lens fed by a magnetic-electric (ME) dipole antenna.
13666 针对超表面透镜在不同位置的折射率的需求, 同时提出了一种新型的非谐振超材料单元, 该单元由三层介质板组成, 中间一层是印有十字形带状线的双层印刷板。 As a constituent part of this lens, a novel subwavelength nonresonant metamaterial unit cell composed of 3-layer substrates is also proposed.
13667 通过改变上下两层介质的介电常数, 可以达到不同的折射率变化范围, 从而实现透镜的中间层和阻抗匹配层对折射率的需求。 By applying Rogers 5880 and air as the top and bottom layers, high and low refractive indexes can be achieved for realizing the core layer and impedance matching layer (IML) , respectively.
13668 所提出的透镜天线设计方法可以获得21 dBi的最高增益以及58%的-10dB阻抗带宽。 Therefore, the proposed lens antenna can exhibit high gain of 19 dBi and -10 dB bandwidth of 58% (6.8-12.4 GHz).
13669 更重要的是所提出的具有高折射率的超材料单元可以实现只有0.32λ0的透镜厚度, 大大减小了透镜的剖面。 Moreover, due to the high refractive index which is realized by the bilayer cross-shaped rings meta unit cell, the total thickness of the lens is 0.32λ0, where λ0 is the wavelength at 10 GHz.
13670 W波段 (75～110GHz) 的电磁波大气吸收率低、波长短、可用频带宽, 在雷达、通信等领域应用广泛。 Due to low atmospheric absorption, short wavelength, and wide available bandwidth, Wband (75—110 GHz) is widely used in radar, communications and other fields.
13671 文章设计了一种W波段基片集成波导 (substrate integrated waveguide, SIW) 背腔缝隙天线, -10dB的阻抗带宽达到28.6% (78.93～105.24GHz) , 覆盖了W波段75%的频带范围。 A wideband substrate integrated waveguide (SIW) cavity-backed slot antenna is presented for W-band application in this paper. The -10 dB impedance bandwidth of 28.6% (78.93—105.24 GHz) is achieved, which covers 75% frequency range of the W-band.
13672 天线采用双层基片结构。 The antenna consists two substrate layers.
13673 上层为SIW谐振腔及四条辐射缝隙构成的谐振辐射单元, 谐振腔内同时存在TM130与TM310混合模、TM320模以及TM330模三种高次模, 和辐射缝隙一起形成多谐特性, 实现带宽拓展。 A resonant radiating-element composed of an SIW cavity resonator and four radiating slots is constructed in the upper substrate. The hybrid mode of TM130 and TM310, the TM320 mode, and the TM330 mode are excited in the resonant cavity simultaneously. Along with the radiating slots, a multi-resonances characteristic is achieved to form the wideband performance.