查询词典 in-line antenna

Element mutual coupling is one of the intrinsic characteristics, witch should be considered especially in the design of the arrays antenna. And it not only affects the antenna gain, beam width and sidelobe level, but also changes the amplitude and phase of the radio signals received.

互耦是阵列天线固有特性之一，是设计天线时必须要重点考虑的因素，它不但对天线阵的增益、波束宽度等参数会造成的影响，而且会改变阵列接收信号的幅度和相位。

In this paper, the statistical model for co channel interference is constructed based on multi beam smart antenna, the concepts of cellular communication system, and the feature of multi beam smart antenna.

根据蜂窝概念和多波束智能天线的特点建立了基于多波束智能天线的同频干扰统计模型，在考虑瑞利-对数正态分布衰落的传播特性后，得出中断概率的表达式。

The stable tracking technology which is one of the key technologies for mobile status communication system has become a hotspot. In order to develop the car-borne antenna stable tracking system, this paper discusses the whole scheme of the antenna system.

天线稳定跟踪技术作为各类移动载体卫星通讯系统中的关键技术之一，已成为了当前移动载体稳定跟踪系统应用领域的一大研究热点。

Conductive ink is a current flows of special business card printing and membership card making ink, it can be in different substrate business card printing and membership card making wire and antenna, the cards and membership cards produced by the antenna to receive reader by microwave signal, such as the American Flint lnk is conductive inks for major manufacturers.

导电油墨是一种允许电流流动的特殊制卡和会员卡制作油墨，它能在不同的承印物上制卡和会员卡制作导线和天线，制卡和会员卡制作的天线可接收阅读器所发射的微波信号，如美国的Flint lnk公司便是导电油墨的主要生产商。

SCR-521. The most significant improvement in the ASE was the use of an antenna duplexer, which permitted the use of just one send-receive antenna, rather than two separate units.

ASE上最重大的改进的使用了天线双工机，使得可以只使用一个收发天线而不是两个，这使飞行时的风阻明显减少，飞行性能得到显著的提高。

A controller processes the RF signals received at and transmitted from the duplexer and controls the whip antenna driver to extend the whip antenna in a speech state or upon a call attempt from a user.

控制器处理从双工器接收的RF信号和发送到双工器的RF信号，控制拉杆天线驱动器，以便在谈话状态下或一旦用户尝试呼叫时，伸出拉杆天线。

A small size MMW CP microstrip antenna is designed using sequential phase rotation method in this paper.The simulation result shows that this antenna has wider impedance bandwidth and axial ratio bandwidth.

采用连续相位旋转法设计了一种四单元的小尺寸的毫米波圆极化微带天线阵列，仿真表明：该天线具有较宽的阻抗带宽和轴比带宽。

This detector systems is fully self-contained in a sleek aluminum case and includes the transmitter, transmitting antenna with stand, receiver with neck strap,"SCAN GUN" receiving antenna, rechargeable gel cell battery with 110V charger, marker flags and user's manual.

该探测系统是完全装置在一个铝箱子里，里面包含传输器，传输天线，接收器，扫描枪接收天线，110伏的充电电池，标记小旗子和用户手册。

The proposed antenna consists of a rectangular metal patch on a printed circuit board fed by a 50- coplanar waveguide. By cutting a C-shaped slot in the rectangular radiating patch,a frequency band notch will be created. The proposed antenna yields an impedance bandwidth of 3.1-10.6GHz with VSWR,except the bandwidth of 5-6GHz for WLAN.

天线采用印刷电路板上的矩形贴片作为辐射单元，并由同一面上的共面波导馈电，通过在矩形贴片上开一个C形槽来实现陷波功能，电磁仿真软件Ansoft HFSS10的仿真结果显示，合适地选择C形槽的尺寸可以调整陷波的中心频率和带宽。

In this illustrated embodiment, the dipole antenna structure is a folded dipole antenna 104 having a first and second bend.

在所例示的实施例中，偶极天线结构是具有第一和第二弯曲的折叠偶极天线104。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。