1) Broad coupling impedance
宽带耦合阻抗
2) Narrow band coupling impedance
窄带耦合阻抗
3) impedance bandwidth
阻抗带宽
1.
Characteristic investigation impedance bandwidth and impulse radiation of dipole antenna with resistance loading;
电阻加载偶极天线阻抗带宽及脉冲辐射特性研究
2.
8mm),the impedance bandwidth is approximately 150%(S11≤-10dB) and the frequency range is 1.
8mm),获得了150%的阻抗带宽(S11≤-10 dB),频率范围是1。
3.
By optimizing the sizes of the proposed slot antenna,a-10dB impedance bandwidth of 67% can be obtained.
通过对天线尺寸参数进行优选,有效展宽了该缝隙天线的阻抗带宽,其-10 dB阻抗带宽可达67%。
4) broadband impedance
宽带阻抗
5) broadband coupling
宽带耦合
1.
The design of broadband coupling for low-voltage power line communications systems is described.
设计了适合低压电力线载波通信系统的宽带耦合电路,为高频信号的高速传输提供了具有良好的阻抗特性和较小的工作衰减的接口电路,并有效地抑制了电路瞬时现象。
6) coupling bandwidth
耦合带宽
1.
The auther also makes a comparison between reflection coefficient group delay method and coupling bandwidth method and proposes a mixed method of phase and group delay which has both advatages of two former method.
文章对比了反射系数群时延法和耦合带宽法,综合其优点提出相位与时延混合的方法,定性地分析了该方法减少读数次数,降低读数误差,提高调谐效率的特点并以实例验证。
补充资料：宽带和窄带业务
宽带业务是相对窄带业务而言的，一般来说，对于速率低于2Mb/s的通信业务统称窄带业务，如电话网、N-ISDN所提供的业务。对于高于2Mb/s的通信业务，如帧中继业务、视频点播、ATM业务、TV会议等称为宽带通信业务。 目前投入应用的宽带接入技术主要有两种：ADSL和FTTX＋LAN。
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