The planar monopole antennas not only have these merits but also have the properties of wideband, low profile, and easily connecting to microstrip line feeding network. 平面单极天线以其结构尺寸小、工作频带宽、全向性能好、生产制作工艺简单等优点,广泛地应用于无线通信系统中。
New wideband source number estimation method based on line detection 基于直线检测的宽带信源个数估计新方法
A4~ 12GHz wideband power amplifier, using a balanced configuration with a strip line Lange coupler, is designed and fabricated. 该平衡放大器由一个4指的微带兰格耦合器实现。
Two kinds of typical wideband signal, Line Frequency Modulation ( LFM) signal and Hyperbola Frequency Modulation ( HFM) signal, is analyzed qualitatively with WAF. Then the author obtain Doppler tolerant signal and time-scale combine resolution signal. 以宽带模糊度函数为工具对线性调频信号和双曲调频信号在多径环境中进行了定性的分析,获得了多普勒宽容信号和时延尺度二维联合分辨信号。
A novel ultra wideband microstrip balun ( balanced to unbalanced transformer) based on Coplanar Waveguide Ground ( CPWG) and Coupled Strip Line ( CSL) is introduced. 根据接地共面波导和耦合微带线设计了一类新型超宽带微带巴伦(平衡/非平衡转换器)。
ADSL is one of the modulation techniques. Using the wideband capacity in copper twisted pair cable, high speed data can be transmitted on the subscriber line. ADSL技术是一种调制技术,在双绞铜线的两端分别接入ADSL调制解调器,即可利用其高频宽带特性传送高速数据。
Mathematic expression of temperature and rate of change of temperature to time at the point ( xO, yO, zO) at any time of laser rotating mirror scanning wideband temperature field is developed and "traveling-wave method of temperature wave line" is put forward. 提出了温度波线行波法,并推导出激光转镜扫描宽带温度场任意时刻点(x0,y0,z0)处的温度和温度对时间变化率的数学表达式。
Research on Key Technologies of Wideband Power Line Communication 宽带电力线通信关键技术的研究
Study of wideband microstrip transmission line baluns 宽频带微带传输线巴伦的研究
Study on Wideband Meander Line Antennas 宽带弯折线天线研究
A 40 μ s Wideband Optical Fiber Delay Line 40μs宽带光纤延迟线
KUROSHIO MEANDER AND EL-NInO EVENT Study on Wideband Meander Line Antennas 黑潮大弯曲与厄尔尼诺宽带弯折线天线研究
The wideband MIMO channel can be modeled as a tapped delay line and an exponential multipath intensity profile ( MIP) is assumed. 假定宽带MIMO信道可用抽头延迟线来模拟并具有指数型多径强度轮廓。
Then, based on the synthesis approach of non-equiripple responses for wideband bandpass filter, wideband parallel-coupled line bandpass filters of even number and odd number of transmission poles with non-equiripple responses have been proposed. 然后基于非等纹响应宽带带通滤波器的综合方法,研究设计了基于平行耦合线宽带带通滤波器结构的通带内具有偶数个和奇数个传输极点的非等纹响应宽带带通滤波器。