宽带

The new kid on the radio block is ultrawideband, also known as UWB or digital pulse wireless.

这个无线电领域中新东西就是超，也称UWB或数字脉冲无线。

The Advantest TR4135 is suitable for measurements on 900-MHz mobile radiotelephone equipment, fixed broadcast stations and mobile A-band equipment.

该爱德tr4135适合测量900兆移动无线电话备，固定广播站和移动备。

A new dynamic model is developed for simulating the widely tunable grating assisted codirectional coupler with rear sampled grating reflector (GCSR) lasers.

提出了个新分析模型，用于可调谐GCSR激光器动态特性模拟。

For general exploringobjects requirement, narrow pulse signal with tens millimicro second to millimicrosecond has the frequency spectrum from DC to thousands MHz.

按照对地目标探测般需要,通常采用纳秒到十纳秒量级电磁探测窄脉冲,信号频谱具有从直流低频直到千兆。

Meanwhile, experiment data and results are provided.Comparison with other methods indicates this circuit is an easy and useful noncorrelation detection method,and can get good ...

与其他方式比较表明,该电路是种简单实用非相关检测方式,与其原有基相关处理部分结合可获得良好超信号接收效果。

Secondly, the structures of various multicouplers and their matching networks are introduced and discussed, and the design period of broadband matching network in multicoupler is presented in brief.

然后，本文对多种多路耦合器结构方案进行了分析和比较，并讨论了匹配网络计方法，其中简要讲述了匹配网络优化计过程。