| 摘要 |
<p>A filter circuit directed primarily to use in the CATV industry includes at least one frequency dependent component, such as an RF choke, capacitor, or inductor, for attenuating signals over at least a portion of the frequency range of signals which pass through the filter. In a typical application, signals are transmitted and received in both forward and return paths at each end of a multi-channel, two-way communication system. Signals in the frequency range of the return path, or of both paths, are attenuated y a desired amount, which amount is essentially constant over the frequency range of attenuation. The circuit component providing the attenuation is frequency dependent, thus providing a number of advantages such as reducing the number of circuit components, reducing filter size and cost, and/or increasing electric surge and power handling capabilities of the filter.</p> |
