Artificial dielectric resonator and artificial dielectric filter using the same

An artificial dielectric filter, comprising:

• a plurality of artificial dielectric resonators coupled to each other and disposed adjacent to each other;
• and
• a first input/output terminal coupled to a first artificial dielectric resonator of the plurality of artificial dielectric resonators to which it is adjacent;
• and
• a second input/output terminal coupled to a second artificial dielectric resonator to which it is adjacent,
• wherein each of the plurality of artificial dielectric resonators includes:
• a first series metal strip group including a plurality of metal strips forming an annular shape and each in a thin sheet shape arranged with microscopic gaps provided in a longitudinal direction;
• and
• a second series metal strip group including a plurality of metal strips forming an annular shape and each in a thin sheet shape arranged with microscopic gaps provided in a longitudinal direction, wherein the center of the second series metal strip group does not contain any additional metal strip groups;
• a third series metal strip group that includes a plurality of metal strips each in a thin sheet shape arranged with microscopic gaps provided in a longitudinal direction and forming an annular shape, the third series metal strip group being disposed coaxially and longitudinally with the first series metal strip group;
• and
• a fourth series metal strip group that includes a plurality of metal strips each in a thin sheet shape arranged with microscopic gaps provided in a longitudinal direction and forming an annular shape, the fourth series metal strip group being disposed coaxially and longitudinally with the second series metal strip group
• wherein each metal strip of the first series metal strip group is disposed to face and extend across a microscopic gap of the microscopic gaps arranged in the plurality of metal strips included in the second series metal strip group.