发明名称 |
Vector modulator using time delay and phase shifter |
摘要 |
An vector modulator using a time delay and a phase shifter is disclosed, the vector modulator including a time delay (110) varying a phase of an input signal by time-delaying the input signal; a first coupler (120) converting the signal outputted in changed phase through the time delay to an I channel signal and a Q channel signal each having a 90° phase difference and outputting the I/Q channel signals; a first phase shifter (130) varying the phase of the I channel signal outputted from the first coupler within a predetermined phase range and outputting the phase-variable I channel signal; a second phase shifter (140) varying the Q channel signal outputted from the first coupler within a predetermined phase range and outputting the phase-variable Q channel signal; and a second coupler (150) coupling phase-variable I/Q channel signals and outputting the coupled signals. |
申请公布号 |
US8400229(B2) |
申请公布日期 |
2013.03.19 |
申请号 |
US201113042376 |
申请日期 |
2011.03.07 |
申请人 |
CHOI HEON SOO;CHOI CHANG SU;JEON HYUNG JUN;KIM YEONG CHAN;IM JAE HWAN;HONG JIN KUK;LS INDUSTRIAL SYSTEMS CO., LTD. |
发明人 |
CHOI HEON SOO;CHOI CHANG SU;JEON HYUNG JUN;KIM YEONG CHAN;IM JAE HWAN;HONG JIN KUK |
分类号 |
H03K7/08 |
主分类号 |
H03K7/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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