The present invention relates to a broadband frequency conversion device which includes: a first frequency mixer for down-converting a received frequency according to a first local oscillation frequency generated in a first local oscillator to a first intermediate frequency; a second frequency mixer for down-converting the first intermediate frequency according to a second local oscillation frequency generated in a second local oscillator to a second intermediate frequency; and a control unit for controlling the first local oscillator to make the first intermediate frequency correspond to an image frequency which is generated by the second local oscillation frequency and second intermediate frequency according to the received frequency. According to the present invention, a receivable frequency range can be extended while maintaining a sweep range of the first local oscillation frequency, and the spurious performance can be improved. [Reference numerals] (170) Control unit
申请公布号
KR20140021285(A)
申请公布日期
2014.02.20
申请号
KR20120087467
申请日期
2012.08.09
申请人
ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
发明人
KIM, SANG TAE;CHOI, YONG SEOK;PARK, GWANG MOON;LEE, SEONG YUN;RO, HAENG SOOK;SUK, MI KYUNG