Dielectric laminated filter

A dielectric laminated filter comprising:

• a dielectric block laminated with a plurality of dielectric sheets;
• a plurality of ground electrodes formed on first sides of the dielectric block;
• a plurality of input and output electrodes formed on second sides of the dielectric body to be separated from the ground electrodes;
• a plurality of internal ground patterns each formed on an inside portion of third sides of the dielectric block and coupled to the ground electrodes;
• a plurality of resonator patterns disposed between the third sides of the dielectric block and having ends coupled to one of the ground electrodes;
• a plurality of capacitor patterns disposed above/below the resonator patterns and having ends coupled to the input and output electrodes;
• and
• an inductor pattern disposed to be spaced-apart from the resonator patterns, having a shape of , having ends of the shape coupled the ground electrodes to form a closed loop to form an inductance coupling with the resonator patterns.

A dielectric laminated filter comprising:

• a dielectric block laminated with a plurality of dielectric sheets;
• a plurality of ground electrodes formed on first sides of the dielectric block;
• a plurality of input and output electrodes formed on second sides of the dielectric body to be separated from the ground electrodes;
• a plurality of internal ground patterns each formed on an inside portion of third sides of the dielectric block and coupled to the ground electrodes;
• a plurality of resonator patterns disposed between the third sides of the dielectric block and having ends coupled to one of the ground electrodes;
• a plurality of capacitor patterns disposed on a plane between the resonator patterns and one of the internal ground patterns, having ends coupled to the input and output electrodes, having the same number of the resonator patterns, and spaced-apart from the resonator patterns;
• and
• an inductor pattern disposed on one of the dielectric sheets on which the resonator patterns or the capacitor patterns are disposed, having a closed loop to form an inductance coupling with the resonator patterns.

A dielectric laminated filter comprising:

• a dielectric block laminated with a plurality of dielectric sheets;
• a plurality of ground electrodes formed on first sides of the dielectric block;
• a plurality of input and output electrodes formed on second sides of the dielectric body to be separated from the ground electrodes;
• a plurality of internal ground patterns each formed on an inside portion of third sides of the dielectric block and coupled to the ground electrodes;
• a plurality of resonator patterns disposed between the third sides of the dielectric block and having ends coupled to one of the ground electrodes;
• a plurality of capacitor patterns disposed on a plane between the resonator patterns and one of the internal ground patterns, having ends coupled to the input and output electrodes, having the same number of the resonator patterns, and spaced-apart from the resonator patterns;
• and
• an inductor pattern disposed on one of the dielectric sheets on which the resonator patterns or the capacitor patterns are disposed, disposed between the resonator patterns disposed adjacent to the input and output electrodes, spaced-apart from the resonator patterns by a distance, and having a closed loop to form an inductance coupling with the resonator patterns.

A dielectric laminated filter comprising:

• a dielectric block laminated with a plurality of dielectric sheets;
• a plurality of ground electrodes formed on first sides of the dielectric block;
• a plurality of input and output electrodes formed on second sides of the dielectric body to be separated from the ground electrodes;
• a plurality of internal ground patterns formed on an inside portion of third sides of the dielectric block and having ends coupled to corresponding ones of the ground electrodes;
• a plurality of resonator patterns disposed between the third sides of the dielectric block and having ends coupled to one of the ground electrodes;
• a plurality of capacitor patterns disposed on a plane between the resonator patterns and one of the internal ground patterns, having ends coupled to the input and output electrodes, having the same number of the resonator patterns, and spaced-apart from the resonator patterns;
• an impedance transformer disposed on one of the dielectric sheets disposed between the capacitor patterns and one of the internal ground patterns, having two sub-patterns disposed adjacent to the input and output electrodes and having first ends coupled to one of the ground electrodes and second ends coupled to the input and output electrodes;
• and
• an inductor pattern disposed on one of the dielectric sheets on which the resonator patterns or the capacitor patterns are disposed, disposed between the resonator patterns disposed adjacent to the input and output electrodes, spaced-apart from the resonator patterns by a distance, and having a closed loop to form an inductance coupling with the resonator patterns.