Patent ID: 6023206
Filing Date: 2000-02-08
Classification: H01P

Abstract:
A slot line transmission media band pass filter, comprising:a substrate of electrically insulating material;input slot line transmission media formed on said substrate and having a positive conductor and a negative conductor, said positive and negative input signal conductors being oppositely disposed about a center line and equally spaced therefrom;output slot line transmission media formed on said substrate and having a positive conductor and a negative conductor, said positive and negative output conductors being oppositely disposed about said center line and equally spaced therefrom;a positive filter conductor formed on said substrate and directly coupled to the positive conductors of said input and said output transmission media, said positive filter conductor having a first positive segment and a second positive segment linearly disposed and separated from one another by a physical gap;a negative filter conductor formed on said substrate and directly coupled to the negative conductors of said input and said output transmission media, said negative filter conductor having a first negative segment and a second negative segment linearly disposed and separated from one another by a physical gap;a positive coupling conductor arrangement provided on said substrate at least in part in a spaced, substantially parallel relationship with portions of said first and second segments of said positive filter conductor so as to couple a signal between said positive filter conductor segments; anda negative coupling conductor arrangement provided on said substrate at least in part in a spaced, substantially parallel relationship with portions of said first and second segments of said negative filter conductor so as to couple a signal between said negative filter conductor segments;wherein said positive filter conductor and said negative filter conductor are oppositely disposed about said center line and spaced from said center line a greater distance than said positive and negative conductors of said input and output slot line transmission media are spaced from said center line.