Broadband linear frequency modulation continuous wave signal generating device

• Main Authors: WANG XIUTAO, SHI CHUNRONG, SUN YONG, GU DONGMEI
• Format: Patent
• Language: Chinese; English
• Published: 10.08.2011
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The utility model discloses a broadband linear frequency modulation continuous wave signal generating device which is used for a signal source of a millimeter wave speed and distance testing radar. The device comprises a signal generation control module, a power supply module, an up-conversion module and a signal conditioning circuit, wherein the signal generation control module comprises a controller and a digital frequency synthesizer connected with a controller signal; the up-conversion module comprises an upper mixer and a band pass filter, and the output end of the upper mixer is connected with the input end of the band pass filter; the signal conditioning circuit comprises a radio-frequency transformer, a power amplifier and an analog low-pass filter which are in a signal connection sequentially; the output of the digital frequency synthesizer is connected with the input of the upper mixer; the power supply module is used for supplying power to all components. Compared with the prior art, the broadband