| 摘要 |
PURPOSE: An RF(Radio Frequency) repeater including a dualization module is provided to successively transmit signals regardless of malfunction complexly using a frequency filter channel filtering method and a frequency band filtering method. CONSTITUTION: An LNA(Low Noise Amplifier)(110) amplifies the signal component of a forward direction signal. The LNA reduces noise components. A filtering unit(101) filters the output signal of the LNA to an IF(Intermediate Frequency) band. An intermediate amplifier unit(150) amplifies the output signal of the filtering unit. The intermediate amplification unit controls the gain of the amplified output signal. An HPA(High Power Amplifier)(160) amplifies the output signal of the intermediate amplification unit to effective power for wireless transmission. [Reference numerals] (110) Low noise amplification unit; (120) Divider; (130) Channel card unit; (140) Channel/band mixing intermediate amplification unit; (150) Intermediate amplification unit; (160) High output amplification unit; (210) Low noise amplification unit; (220) Divider; (230) Channel card unit; (240) Channel/band mixing unit; (250) Intermediate amplification unit; (260) High output amplification unit; (310,320) Duplexer; (330) Doner-antenna; (340) Service antenna
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