DEVICE FOR EXPANDING AN FA OF AN ANALOG UP-CONVERTER ASSEMBLY, PARTICULARLY FOR INCREASING AN FA BY USING A DIVERSITY PATH FOR EXPANDING THE FA WITHOUT ADDITIONAL MOUNTING THE ANALOG UP-CONVERTER ASSEMBLY

摘要

PURPOSE: A device for expanding an FA(Frequency Assignment) of an AUCA(Analog Up-Converter Assembly) is provided to solve a problem that designing of a base station unit incurs much cost and the size of a device is increased by additionally mounting an AUCA. CONSTITUTION: A combiner(201) combines expanding FAs applied to a diversity path. The first pad(202) buffers an output signal of the combiner(201). An LPF(Low Pass Filter)(203) filters an output signal of the first pad(202). The second pad(204) buffers an output signal of the LPF(203). The first mixer(205) mixes an intermediate frequency signal outputted from the second pad(204) with a local signal. The third pad(206) buffers an output signal of the first mixer(205). The first BPF(Band Pass Filter)(207) filters an output signal of the third pad(206). An attenuator(208) attenuates an output signal of the first BPF(207) with a pre-set gain. The first amplifier(209) amplifies an output signal of the attenuator(208) to a certain level. The fourth pad(210) buffers an output signal of the first amplifier(209). The second amplifier(211) amplifies an output signal of the fourth pad to a certain level. The second BPF(212) filters an output signal of the second amplifier(211) to a certain band. The fifth pad(213) buffers an output signal of the second BPF(212). The second mixer(214) mixes an output signal of the fifth pad(213) with a local signal to up-convert it into a radio frequency. The sixth pad(215) buffers an output signal of the second mixer(214). The third and fourth BPFs(216,217) sequentially filter an output signal of the sixth pad(215).