Multi-layered band-pass filter device
AssigneeTDK Corporation
InventorsLongfei Yi, Shigemitsu Tomaki
Life of this patent
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Abstract
A filter includes first and second resonators and first and second stub resonators. Each of the first and second resonators includes a first conductor part and a second conductor part electrically connected to the first conductor part and having an impedance smaller than an impedance of the first conductor part. The first stub resonator is electrically connected to the first conductor part of the first resonator. The second stub resonator is electrically connected to the first conductor part of the second resonator. The shape of the first stub resonator and the shape of the second stub resonator are different from each other.
Claims14
A filter comprising:
- a first resonator and a second resonator each including a first conductor part and a second conductor part having an impedance smaller than an impedance of the first conductor part;
- a first stub resonator composed of a distributed constant line that is electrically and directly connected to the first conductor part of the first resonator;
- and
- a second stub resonator composed of a distributed constant line that is electrically and directly connected to the first conductor part of the second resonator, wherein
- a shape of the first stub resonator and a shape of the second stub resonator are different from each other.
Dependencies are inferred from the claim text.