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MMWCAS-RF-EVM: 重叠天线的位置是否有误差

Part Number: MMWCAS-RF-EVM

我想利用MMWCAS-RF-EVM的重叠天线的相位差进行速度扩展和TDMA相位补偿,水平方向上有很多对重叠天线,我想知道这些重叠天线对的物理位置是否严格相等,会不会有误差,如果有误差的话在重叠天线的相位差上会多一个误差项,从而影响多普勒频率的计算