Abstract: In a directional tap, a splitting circuit receives a video signal from an input port and outputs a distributed video signal corresponding to the video signal from the input port at each of multiple directional output ends. Each of multiple directional output terminals is connected electrically to a respective one of the directional output ends for outputting the distributed video signal to a client end. One of multiple surge protection circuit units is connected between the input port and an input of the splitting circuit. The remaining surge protection circuit units are connected between a respective directional output end of the splitting circuit and a respective directional output terminal. Each surge protection circuit unit includes an inductor having a first terminal connected electrically to the splitting circuit, and a second terminal cooperating with a ground terminal to define a gap.

Abstract: An input/output port for a directional tap includes an insulating seat, a conductive seat and a tubular terminal holder. The terminal holder is in electrical connection with the conductive seat and has a uniform-diameter portion and a converging portion, which extends from an end of the uniform-diameter portion, which is generally shaped as a truncated cone, and which has a small-diameter end that is distal to the uniform-diameter portion and that has a diameter smaller than that of the uniform-diameter portion. The converging portion is formed with a plurality of axial slits therethrough that define a plurality of jaws so as to be adapted to clamp a terminal of an input/output cable within the small-diameter end of the converging portion of the terminal holder, thereby establishing electrical connection between the terminal and the terminal holder.

Abstract: A predistortion circuit includes a first splitter for splitting an input signal into primary and secondary electrical paths, a first combiner for combining a main signal on the primary electrical path and a predistorted signal on the second electrical path into a single signal for modulating a nonlinear device with predictable distortion characteristics, a distortion signal generator for receiving a branch signal from the first splitter and for producing first and second intermodulation products, a second splitter for receiving the first intermodulation products and for outputting two sets of the first intermodulation products, a third splitter for receiving the second intermodulation products and for outputting two sets of the second intermodulation products, an even-order signal processing unit for processing one set of the first intermodulation products and one set of the second intermodulation products to generate even-order intermodulation products, an odd-order signal processing unit for processing the

Abstract: A device is to be coupled and used with a standard non-power providing directional tap and includes a power coupling unit and a power combining unit. The power coupling unit is adapted to be connected to an output port of the directional tap. The power coupling unit filters out RF signals from the output port and outputs an AC power signal from the output port. The power combining unit includes at least two sets of combining circuits with a common input port connected to the power coupling unit so as to receive the AC power signal therefrom. Each combining circuit has an RF input signal port adapted to be connected to a respective one of the RF signal ports of the directional tap so as to receive the RF signal therefrom, and a combined output signal port with an output which is the AC power signal from the common input port and the RF signal from the RF input signal port.