Patent ID: 6580902
Filing Date: 2003-06-17
Classification: H03C,H03D,H04B,H04L

Abstract:
A circuit for down-converting an electromagnetic signal, comprising:an energy transfer module having a switch module and an energy storage module, said energy transfer module sampling the electromagnetic signal at an energy transfer rate, according to an energy transfer signal, to obtain sampled energy, said sampled energy being stored by said energy storage module, a down-converted signal being generated from said sampled energy, wherein said energy transfer module further comprises: transistors coupled together, said transistors having a common first port, a common second port, and a common control port, wherein the electromagnetic signal is accepted at said common first port and said sampled energy is present at said common second port, and further wherein said common control port accepts said energy transfer signal, said energy transfer signal having a control frequency that is substantially equal to said energy transfer rate, and wherein each of said transistors has a drain, a source, and a gate, and said common first port couples together drains of said transistors, said common second port couples together sources of said transistors, and said common control port couples together gates of said transistors.