“lower-sideband upconverter”的概念、定义、翻译、参考文献-科学参考

单词	lower-sideband upconverter
释义	lower-sideband upconverter [`lō·ǝr ¦sīd´band `ǝp·kǝn´vǝrd·ǝr] ^ELECTRONICS Parametric amplifier in which the frequency, power, impedance, and gain considerations are the same as for the nondegenerate amplifier; here, however, the output is taken at the difference frequency, or the lower sideband, rather than the signal-input frequency.
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