Patent ID: 6091940
Filing Date: 2000-07-18
Classification: H03C,H03D,H04B

Abstract:
An apparatus for communicating, comprising:a first switch module that receives a first oscillating signal and a first bias signal, wherein said first oscillating signal causes said first switch module to gate said first bias signal and thereby generate a first periodic signal having a first plurality of harmonics, said first periodic signal having an amplitude that is a function of said first bias signal;a second switch module that receives a second oscillating signal and a second bias signal, wherein said second oscillating signal causes said second switch module to gate said second bias signal and thereby generate a second periodic signal having a second plurality of harmonics, said second periodic signal having an amplitude that is a function of said second bias signal;a summer coupled to said first switch module and to said second switch module, said summer to receive and combine said first periodic signal and said second periodic signal, and to output a combined periodic signal having a combined plurality of harmonics; anda filter coupled to said summer, said filter to isolate at least one of said combined plurality of harmonics.