Patent ID: 7098759
Filing Date: 2006-08-29
Classification: H01P,H05K

Abstract:
1. A harmonic spurious signal suppression filter fabricated on a printed circuit board, comprising: a microstrip input end, one end of the microstrip input end connecting an input end of the filter; a first microstrip line, one end of the first microstrip line perpendicularly connecting the other end of the microstrip input end; a microstrip output end, one end of the microstrip output end connecting to an output end of the filter; an additional microstrip line, one end of the additional microstrip line perpendicularly connecting the other end of the microstrip output end, the additional microstrip line and the first microstrip line being interwovenly disposed in a interdigital finger form; and a meandering microstrip line, two ends of the meandering microstrip line respectively connecting the other ends of the input end and the output end, and extending from said one end of the first microstrip line and said one end of the additional microstrip line; wherein the meandering microstrip line further comprises a second microstrip line, the second microstrip line being extended from both the microstrip input end and the microstrip output end.