查询词典 antennas

The rigorous full-wave analysis of monolithic microwave integrated circuits and microstrip antennas has been made possible due to large increases in computing power and the development of a number of numerical techniques.

随着计算能力的提高和数值方法的发展，单片微波集成电路和微带天线的严格全波分析有了可能。

More specifically, the invention relates to an antenna (1) comprising: first (2) and second (3) linear sub-antennas which are equipped with sensors (21-2M, 31-3N) forming first and second line segments and generating a basic signal, the angle between the respective directional vectors of the first and second tangents to the midpoint respectively of the first and second line segments being between 30 DEG and 150 DEG ; an antenna processing device (4, 5) forming combined signals; a signal-processing device (6, 7) generating combined useful signals; a device (8) for calculating the correlation coefficients (Cij between the combined useful signals; and a device (8) for generating a detection signal (Rij when a correlation coefficient exceeds a threshold.

更具体地，本发明涉及一种天线(1)，包括：带有形成第一和第二线段并产生基本信号的传感器(21-2M，31-3N)的第一(2)和第二(3)线性子天线，第一和第二线段各自中点的第一和第二切线的对应方向矢量之间的夹角在30°和150°之间；形成组合信号的天线处理装置(4，5)；产生有用组合信号的信号处理装置(6，7)；计算有用组合信号之间的相关系数(Cij的装置(8)；以及当某相关系数超过阈值时产生检测信号(Rij的装置(8)。

I could come by any time for my antennas, the salesman said with a guffaw.

售货员笑着说，为了我的天线，我能够在任何时间赶过去。

In planar circuits and radiative antennas it is necessary to study plane waves propagating through a gyromagnetic medium magnetized at an arbitrary direction.

在铁氧体基片平面电路和发射天线中必须研究平面波在任意磁化方向旋磁媒质中的传播。

The pattern synthesis of horizontal plane and vertical plane of sector antennas is studied.

最后给出的算例验证了思路的正确性。2。

The traditional unitary space-time modulation system is generally based on the assumption of independent and identically distributed channel coefficients. However, this condition is hard to satisfy in practice, the spatial correlation among antennas deteriorates the performance.

传统的酉空时系统，通常假设信道衰落系数之间相互独立，这个条件在实际系统中却很难满足，天线之间的空间相关性造成系统性能恶化。

The data symbols may be sent on orthogonal spatial channels with the eigenmode matrix, on different spatial channels with the steering matrix, or from different transmit antennas with the identity matrix.

数据符号可以用本征矩阵在正交空间信道上进行发射，用导引矩阵在不同的空间信道上进行发射，或用单位矩阵从不同的发射天线进行发射。

First the FEM-BI (Finite Element – Boundary Integral Methods) base on vector element is presented to compute the electric field in the cavity backed antennas.

计算中首先采用基于矢量单元的"有限元－边界积分方程法"计算出背腔天线内部电场的分布；再采用互易原理求解天线的远区场，从而获得天线的辐射方向图。

Part 14 : external intermodulation products caused by two or more transmitters using the same or adjacent antennas .

第14部分：使用同样的或临近天线的两个或更多的发射机产生的外部相互调制产物

Some active antennas generate intermodulation products which can appear as spurious signals interfering with reception.

一些活跃天线引起可能出现作为假信号干涉招待会的相互调制产品。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48