| 摘要 |
<p>A system and a method are provided for supplying oscillating signals having suppressed even order harmonic components. Such oscillating signals can be supplied over broad frequency bands including RF signals of between 10 kilohertz (10 kHz) and 100,000 megahertz (100,000 MHz). In particular, symmetric square wave signals are supplied which have essentially no D.C. or second order harmonic components. Such signals are used for frequency shifting purposes. Any undesired mixing products generated by any odd order harmonics typically will not overlap signals desired from frequency shifting operations, and thus can typically be filtered off. Moreover, some common mixer designs yield minimal noise when driven by square wave signals, particularly when driven by the supplied symmetric square wave signals. <IMAGE></p> |
