In the previous blog, we discussed about the first drawback of the Heterodyne transmitter which is DC offset. The second drawback is Mixing Spurs, which will be discussed in this blog. What is Mixing Spurs? In simple language, if there …
Heterodyne Transmitter Heterodyne Transmitter is a two-step upconversion, just like heterodyne receiver which is a two-step downconversion. Read about the heterodyne receiver. This structure involves two steps of mixing and there is no oscillator pulling problem, however, just like other …
This blog talks about the carrier leakage within the transmitter. The analog base circuitry producing the quadrature signals in a transmitter exhibits DC offset. What is DC offset? DC offset is coming from local oscillator leakage. The local oscillator leakage …