Broadband adjustable wideband RF Receiver

The utility model relates to a broadband adjustable wideband RF Receiver, comprising the hardware modules as following: an ultra-wide band low-noise high frequency amplifier, which is called an ultra-wide band low-noise amplifier and is connected with an external antenna; an ultra-wide band adjustable filter, which receives the signal output by the amplifier; a first radio frequency switch, which receives the signal output by the ultra-wide band adjustable filter; a radio frequency automatic gain amplifier, which receives the signal output by the first radio frequency switch; a second radio frequency switch, which receives the signal output by the radio frequency automatic gain amplifier and is coupled to a first short wave module; a mixer, which receives and processes the signal output by the second radio frequency switch and outputs a frequency mixing signal; a local oscillator, which is used for outputting a frequency signal to the mixer; and a microcontroller, which is used for controlling the ultra-wide band adjustable filter, the first radio frequency switch, the radio frequency automatic gain amplifier, the second radio frequency switch and the local oscillator respectively.