High frequency amplification in quantum well oscillators

B. Jogai, K. L. Wang, K. W. Brown

研究成果: Article同行評審

4 引文 斯高帕斯(Scopus)

摘要

We have calculated the frequency limit of negative differential resistance and a.c. amplification of quantum well oscillators. From the time development of resonant tunneling, negative resistance is expected to occur at very high frequencies. However, the large device impedance results in a resistive cut-off frequency that is several orders of magnitude below that predicted from transit time considerations. This cut-off frequency is estimated from an equivalent circuit model, and the power of an oscillator as a function of frequency and negative resistance is found from a transmission line model.

原文English
頁(從 - 到)259-265
頁數7
期刊Superlattices and Microstructures
2
發行號3
DOIs
出版狀態Published - 1986

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)
  • 凝聚態物理學
  • 電氣與電子工程

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