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1.发明公开ANALOG BASEBAND FILTERING APPARATUS OF MULTIMODE MULTIBAND WIRELESS TRANSCEIVER AND CONTROL METHOD THEREOF 审中-公开多模式多频带无线传输接收机的模拟基带过滤装置及其控制方法
公开(公告)号：EP3025465A4
公开(公告)日：2017-04-05
申请号：EP14829780
申请日：2014-07-24
发明人： HAN BYUNGKI , AHN SUSEOB , LEE JONGWOO
CPC分类号： H03H11/12 , H03H7/24 , H03H11/0405 , H03H11/0455 , H03H11/1252 , H03H11/1291 , H03H2011/0494 , H03H2250/00 , H04L25/03
摘要： The ABB blocks 332, 334, 336, and 318 are configured to process the I/Q signals corresponding to the first or the second HB independently or the I/Q signals corresponding to the LB in cooperation by two. In detail, the first ABB I block 332 and the first ABB Q block 334 operate independently in the 3G/4G mode but they are configured to process the I signal (or Q signal) of the LB in the 2G mode. Likewise, the second ABB Q block 336 and the second ABB I block 318 operate independently in the 3G/4G mode but they are configured to process the Q signal (or I signal) of the LB in the 2G mode. The first ABB I/Q blocks 332 and 334 and the second ABB I/Q blocks 336 and 318 are arranged symmetrically to processing the I/Q signals cooperatively in the 2G mode. In detail, the second ABB Q block 336 is arranged close to the first ABB Q block 334 such that the capacitor regions included in the first ABB I/Q blocks 332 and 334 are connected to each other and the capacitor regions included in the second ABB I/Q blocks 336 and 338 are connected to each other.
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