The attempt to investigate the effects of the microstrip-slotline feeding structure parameters on radiation characteristics of the Vivaldi antenna involves the reduction of the parameters to three parts,the magnitudes of strip-stub,the sizes for slotline circle cavity and gradual rates of antenna and requires the optimization simulation design of the parameters.
为了研究微带线—槽线馈电结构参数对Vivaldi天线辐射性能的影响,将该天线的参数归纳成微带短截线的尺寸、槽线环形谐振器的尺寸、天线渐变指数及开口尺寸3个部分,并分别对这些参数进行优化仿真设计。
According to the specific characteristics of monopole antenna, feeding signal may be multi reflected at the terminals, which could seriously damage the radiation characteristics.
基本的单极子天线由于其本身的特性会在天线内部对馈入的信号进行多次反射 ,严重制约着它的辐射性能。
Optical transparency and irradiation resistance of some heavy metal germanate glasses doped with scintillating rare earth ions are characterized.
从新型抗辐射闪烁体材料的应用背景出发 ,对某些稀土离子掺杂重金属锗酸盐玻璃进行了紫外与可见光谱区的透过性能及抗辐射性能的表征 ,重点讨论玻璃基质组成与短波截止波长之间的关系以及一些元素对玻璃抗辐射性能的影响。
The physical properties,hot nitric acid resistance,hot air aging property,radiation resistance and compatibility of the blends were investigated.
研究了橡胶共混比、硫化体系、高耐磨炭黑用量及共混工艺等对ＥＰＤＭ／ＣＲ共混物性能的影响，考察了共混物的力学性能、耐高温硝酸性能、热空气老化性能、耐辐射性能和相容性。
Effect of HSBR content on the mechanical properties and radiation resistance under the condition of 50 kGy from cobalt 60 were investigated.
用自制加氢度为97%的氢化丁苯橡胶(HSBR)通过双螺杆挤出机制备了HSBR/聚丙烯(PP)共混物,考察了HSBR质量分数对共混物力学性能及其在放射量为50kGy的放射源钴-60下耐辐射性能的影响。
On the prediction of acoustic radiation of flexible linkage mechanism;
弹性连杆机构声辐射性能预报研究
The effects of the surface morphology,thickness of SiC coating and high temperature oxidation on the thermal radiation properties of 3D C/SiC were investigated.
利用稳态量热计法和傅里叶红外光谱仪分别测定了3D C/SiC复合材料在90℃时的半球向总发射率和室温法向光谱反射率,研究了表面形貌、涂层厚度及高温氧化对3D C/SiC热辐射性能的影响。
The thermal radiation properties of C/SiC composites is very important reference date to use and key parameter to design the thermal protect systems.
C/SiC复合材料热辐射性能是其使用时的重要参考数据和进行热防护设计的关键参数,它将极大地影响C/SiC热结构部件的工作效能及其使用寿命。
In the paper,the comparative experiment on radiation performance is introduced briefly;the system and radiant errors of radiation-proof devices are presented based on the statistical analysis of the comparative test data.
本文介绍了防辐射性能埘比试验的基本情况,通过对试验观测数据进行统计分析,得到了防辐射设备的系统误差和辐射误差。
Study on the Vibration and Radiation Characteristics of Stepped Circular Plates in Longitudinal-Flexural Airborne Transducer;
纵弯复合换能器阶梯辐射圆板的振动和辐射性能研究
Utilization of the Far-Infrared Radiation Characteristics of the Opal Quartz Glass
乳白石英玻璃远红外辐射性能的利用
Investigation of the Thermal Radiation Properties of C/SiC Composites;
C/SiC复合材料热辐射性能研究
Research on Radiation Performance of a Peano Fractal Loaded Monopole
Peano分形加载单极子辐射性能的研究
Ove the Air Performance Testing for MIMO Wireless Devices
MIMO无线设备的空间辐射性能测试
The Optimized Design for Radiation Performance of UHF Band Dual-frequency Feed
UHF频段双频馈源辐射性能的优化设计
In radiation, thermal energy is transformed into radiant energy, similar in nature to light.
热能在辐射时，转换成性质与光相似的辐射能。
Properties of radiation-proof thermoplastic polyurethane composites
热塑性聚氨酯防辐射复合材料的性能
Study on Preparation and Properties of ZrN_x/Ag/ZrN_x Low-e Coating;
ZrN_x/Ag/ZrN_x低辐射薄膜的制备及性能研究
Study of Generalization Ability of Solar Irradiance Forecast on the Basis of Neural Network;
太阳辐射预测神经网络泛化性能研究
Study on the Control Strategies for Radiant Floor Heating Systems;
低温地板辐射采暖系统调节性能研究
The Coherence Properties of Spontaneous Radiation in the Four-level Atom;
四能级原子自发辐射的量子相干特性
Flight performance of the radiant cooler for MERSI instrument
MERSI辐射制冷器在轨飞行性能
Improving compatibility of styrene-butadiene-styrene/polyamide 6 blends by radiation crosslinking of the SBS
SBS辐射交联对SBS/PA6共混物性能的影响
Study on the effect of stabilizers on discoloring of PVC by irradiation
稳定剂对PVC辐射变色性能影响的研究
THE PERFORMANCE ANALYSIS OF THE COMBUSTOR-EMITTER OF THERMO-PHOTOVOLTAIC SYSTEM
热光伏系统燃烧.辐射器的性能分析
Influence of radiation prevulcanization on properties of CⅡR/NR blend
辐射预硫化对CⅡR/NR并用胶性能的影响
Monte carlo simulation of screen-film system used in high energy radiography
高能辐射照相中屏片系统的响应特性