INTERDIGITAL CAPACITOR, INDUCTOR, AND TRANSMISSION LINE AND COUPLER USING THEM
First Claim
1. A capacitor comprising:
- a first set of fingers including at least two fingers disposed spaced apart from each other and connected at one ends thereof to each other; and
a second set of fingers including at least two fingers disposed spaced apart from each other and connected at one ends thereof to each other, the second finger set being spaced apart from the first finger set by a predetermined interval in such a fashion as to be substantially in parallel with the first finger set.
2 Assignments
0 Petitions
Accused Products
Abstract
There is herein disclosed an interdigital capacitor, an inductor, and an LH transmission line and a coupler using the interdigital capacitor and the inductor. The interdigital capacitor comprises two finger sets which are substantially disposed in parallel with each other. Fingers of each finger set are overlapped at outer edges thereof with each other to thereby generate capacitance. The inductor is formed substantially spirally inside the transmission line, so that it can have a large inductance in a compact shape and can be used in a broad frequency band. The LH transmission line has a broad frequency band in a compact shape, which includes interdigital capacitors connected in series with each other and inductors connected in parallel with each other. In addition, the coupler employing the LH transmission line has an excellent couplability.
31 Citations
11 Claims
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1. A capacitor comprising:
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a first set of fingers including at least two fingers disposed spaced apart from each other and connected at one ends thereof to each other; and a second set of fingers including at least two fingers disposed spaced apart from each other and connected at one ends thereof to each other, the second finger set being spaced apart from the first finger set by a predetermined interval in such a fashion as to be substantially in parallel with the first finger set. - View Dependent Claims (2, 3)
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- 4. An inductor which is connected at one end thereof to a transmission line and is connected at the other end thereof to a ground plane, the inductor being formed inside the transmission line in such a fashion as to have a substantially spiral shape.
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6. A transmission line having an LH characteristic, comprising:
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a capacitor which comprises;
a first set of fingers including at least two fingers disposed spaced apart from each other and connected at one ends thereof to each other; and
a second set of fingers including at least two fingers disposed spaced apart from each other and connected at one ends thereof to each other, the second finger set being spaced apart from the first finger set by a predetermined interval in such a fashion as to be substantially in parallel with the first finger set; andan inductor which is connected at one end thereof to the second finger set and is connected at the other end thereof to a ground plane. - View Dependent Claims (7, 8, 9, 10, 11)
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Specification