| 摘要 |
<p>An amplifying system and method produces a substantial reduction in the D. C. and even-order harmonics in an output signal (xo) by employing a first inverting amplifying stage (22) cascaded with an attenuating stage (26) which is cascaded with a second inverting amplifying stage (30). The electrical characteristics of each of the two inverting amplifying stages (22.30) are substantially the same. The gain, in dB, exhibited by each of the amplifying stages (22,30) is substantially equal to the attenuation loss, in dB, produced by the attenuator stage (26). Conventional components and fabrication techniques allow substantial attenuation of the D. C. and even-order harmonic components produced by the non-linearities in the active devices of the amplifiers as compared to a single amplifier case producing the same gain A.</p> |
