Patent ID: 6677830
Filing Date: 2004-01-13
Classification: H01P

Abstract:
A broadband circuit for providing impedance matching between a broadband electrical signal source and an optical device, the circuit comprisinga microstrip transmission line coupled at a first end to the optical device and coupled at a second, opposite end to the broadband electrical signal source, said transmission line defined as comprising a predetermined length L and width W for supporting propagation of an electrical signal from said broadband signal source; and at least three pair of open stubs, each pair joined to the microstrip transmission line and exhibiting unique dimensions with respect to the remaining pairs of stubs such that each pair has a different length and width, with each stub in a pair of stubs having a substantially identical length li, and width wi, and disposed on opposite sides of said transmission line in a symmetrical arrangement, the subscript i denoting a particular pair of stubs in the set of at least three pair of open stubs and used to define the unique length and width of that particular pair of open stubs.