Lossless propagation.

التفاصيل البيبلوغرافية
العنوان: Lossless propagation.
المؤلفون: Johnson, Howard howie03@sigcon.com
المصدر: EDN. 12/3/2007, Vol. 52 Issue 25, p28-28. 1p.
مصطلحات موضوعية: RADIO wave propagation, ELECTRIC potential, FREQUENCY response, ELECTRIC lines, ELECTRIC impedance, ELECTRICAL engineering
مستخلص: The article presents a technical description of how a voltage waveform propagates without sensible degradation at a constant velocity without significant loss of amplitude. An L-C ladder model is provided to illustrate the behavior of a typical printed-circuit-board (PCB) transmission line from a digital application. Considering the difference between the voltage waveforms at different times, the article suggests that the properties of lossless propagation and resistive input impedance are inextricably linked. In addition, the input impedance may no longer appear purely resistive.
قاعدة البيانات: Business Source Index