1) bifilar helix
双臂螺旋天线
1.
A new type of bifilar helix for satellite navigation communication system is introduced,and the traving-wave bifilar helix is analyzed briefly.
介绍一种用于卫星导航通信系统的双臂螺旋天线,讲述爬行波式螺旋天线的设计过程,并给出最终测试结果。
3) quadrifilar helix antenna
四臂螺旋天线
1.
Review on ceramic-loaded quadrifilar helix antennas;
陶瓷介质加载四臂螺旋天线
2.
The method of moment(MoM) and its fast algorithms are employed to simulate the radiation behavior of the resonant quadrifilar helix antenna mounted on missiles.
本文采用矩量法及其快速算法对弹载谐振式四臂螺旋天线的辐射特性进行了仿真。
3.
A quadrifilar helix antenna with good radiation property is designed, and a scheme of feed source with the same four feed ports and the phase difference 90 degree between two ports is proposed.
研究设计了一种具有良好低仰角增益的宽波束圆极化四臂螺旋天线,该天线在上半空间的增益分布十分均匀,10°仰角的增益相对峰值增益下降不超过3dB。
4) two-wire Archimedian planar spiral antenna
双臂阿基米德平面螺旋天线
5) resonant quadrifilar helix antenna
谐振式四臂螺旋天线
1.
A novel resonant quadrifilar helix antenna for satellite communication is introduced in this pa-per.
介绍了一种用于卫星移动通信的新型谐振式四臂螺旋天线,谐振式四臂螺旋天线由于其结构简单、不需要参考地面、在低仰角处增益仍满足要求等特点在卫星通信中得到广泛的应用。
2.
The resonant quadrifilar helix antennas have been widely applied to space communication links because of its relatively small volume and light weight plus its capability of providing shaped-conical beam, end-fire radiation without requiring a ground plane.
谐振式四臂螺旋天线由于不需要参考地、能产生赋形方向图且重量轻、尺寸小,在空间通信中得到广泛的应用。
6) Conical quadrifilar helical antenna
圆锥四臂螺旋天线
补充资料:双[1-(4-二甲氨基)苯基2-苯基1,2-二硫代乙烯合镍]
分子式:
CAS号:
性质:紫黑色单斜晶体。熔点277~278℃。溶于苯、甲苯、三氯甲烷等大多数有机溶剂。红外频率υ(C=S)1190、1165、1140cm-1,红外频率υ(S-C-C-S)880cm-1。由对二甲氨基安息香、五硫化二磷在二噁烷(二氧六环)中反应后,加入镍(Ⅱ)盐溶液制得。用作光学非线性材料。
CAS号:
性质:紫黑色单斜晶体。熔点277~278℃。溶于苯、甲苯、三氯甲烷等大多数有机溶剂。红外频率υ(C=S)1190、1165、1140cm-1,红外频率υ(S-C-C-S)880cm-1。由对二甲氨基安息香、五硫化二磷在二噁烷(二氧六环)中反应后,加入镍(Ⅱ)盐溶液制得。用作光学非线性材料。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条