本發(fā)明提供一種用來將一輸入信號(hào)降頻為一輸出信號(hào)的混頻器.The invention provides a mixer which an input signal into an output signal through frequency reduction.直接降頻轉(zhuǎn)換接收器架構(gòu)能夠以較低成本提高無線系統(tǒng)基站接收器的性能.Framework of direct - down conversion receiver can provi...