Patent ID: 6252476
Filing Date: 2001-06-26
Classification: H01P

Abstract:
A microstrip bandpass filter comprising:an input;an output; anda plurality of resonators coupled in series between the input and output each resonator comprising:a first line conductor having first and second ends; anda second line conductor having first and second ends, the first and second line conductors of each resonator positioned such that the second end of the first line conductor is connected to the second end of the second line conductor to form a first angle of each resonator which is substantially less than 180 degrees;wherein at least one of the plurality of resonators further comprise an open ended line conductor connected to the second ends of the first and second line conductors, the open ended line conductor and the first line conductor forming a second angle of each open ended resonator, the open ended line conductor and the second line conductor forming a third angle of each open ended resonator, with the second and third angles of each open ended resonator being substantially greater than 90 degrees.