| 摘要 |
In the present invention, a separating properties of the high-band signal to obtain a signal that can be made to maximize transmission efficiency on the low-high frequency coaxial line separator is disclosed. A frequency separator according to the present invention comprises a bandpass filter (BPF) that enables a high-frequency signal to be passed through a high-pass filter (HPF) and a high terminal, a signal delay circuit that can delay an output signal of the bandpass filter, a band rejection filter (BRF) which only allows the signals other than the high signals between the HPF and high terminal to be passed through, an inverting circuit that inverts the output signals of a band rejection filter, a parallel frequency converter which is connected to an output terminal of the inverting circuit so as to balance and correct the distortion of a signal, and a mixer which mixes the output signal of the parallel frequency converter and the output signal of the signal delay circuit and provides them to the high terminal. Accordingly, the present invention may remove the noise from the output signal of the bandpass filter which also provides a maximizing effect for a signal transmitting efficiency by achieving a separation characteristic of a high signal. Further, the output stage of the high pass filter can connect the bandpass filter and the band rejection filter in parallel, so that it may bring stability of the circuit by connecting the parallel frequency converter to the output terminal of the band rejection filter. [Reference numerals] (210) High frequency terminal; (275) Parallel frequency converter; (277) Signal delaying circuit; (279) Mixer |
