Samsung Electro-mechanics Co., Ltd.

Gi Won Choi

Yoo Sam Na

Seung Min Oh

Hyo Seok Kwon

The present invention relate to a wideband frequency generating apparatus using a frequency dividing method of dividing a frequency signal of a voltage control oscillator to expand a frequency generating range. The apparatus comprises an oscillator unit generating a predetermined frequency signal, a mixer having a first input coupled to the oscillator unit to generate a difference signal by mixing the predetermined frequency signal with a signal inputted to a second input of the mixer, a first switch tuned on/off and coupling the predetermined frequency signal to an output of the mixer, a second switch turned on/off and coupling the output of the mixer to the second input of the mixer to form a feedback loop, a &#xbd; frequency divider dividing the output of the mixer by &#xbd; to generate a divided signal, a third switch tuned on/off and coupling the divided signal of the &#xbd; frequency divider to the second input of the mixer unit, and a control logic unit generating on/off control signals turning on/off the mixer, the first switch, the second switch, the third switch in accordance with a selection of frequency generating ranges.

Growing community of inventors

Kyungki-do, South Korea

Gi Won Choi