Implementation considerations.qualcomm saw filters

　　Although power dividers are very simple, they can still cause problems if not applied correctly. For example, pay attention to the DC offset at the input end. The hybrid combiner using transformers does not generate direct current.

　　In resistive power dividers, the presence of direct current reduces their power ratings. All passive power combiners adopt a symmetrical topology, and designers must maintain this symmetry when applying them. It is necessary to match and balance the load. Using mismatched load impedance will result in unequal output levels.

　　In applications that require a fixed phase difference, such as feeding a local oscillator to an orthogonal modulator or demodulator, the output path length must be equal to prevent phase mismatch of the mixer.

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