| 摘要 |
Passive devices for signal routing such as directional couplers, hybrid splitters and power inserters, for use in CATV or similar signal distribution systems having improved operating characteristics are obtained by the incorporation of pi-section high-pass filters into such devices. Conventional splitters and directional couplers are modified by the addition of inductances and capacitances so that the required pi-section high-pass filters are formed, with one inductive element of such a filter being constituted by an inductive deviation, for example, a leakage inductance of an existing component of such a device. Improved radiofrequency signal return losses and inter-tap isolation are provided over a much greater frequency range than was heretofore possible.
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