Coplanar transformer with a capacitor
First Claim
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1. A coplanar transformer, comprising:
- a primary coil, said primary coil comprising a first end point and a second point located on a first metal layer;
a secondary coil, said secondary coil comprising a third end point and a fourth end point located on said first metal layer; and
a first capacitor, said first capacitor comprising a first upper electrode plate located on said first metal layer and a first lower electrode plate located on a second metal layer, said first upper electrode plate and said first lower electrode plate being respectively electrically coupled with said first end point and said second end point.
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Abstract
A coplanar transformer with a capacitor that has the advantage of high space utilization is provided. The coplanar transformer comprises a primary coil and a secondary coil constructed by many conductor segments in a first metal layer and connectors in a second metal layer. The upper plate and lower plate of the capacitor are electrically coupled with the two terminals of the primary coil separately. The upper plate comprises the extended plate from the connected terminal toward the other terminal and the connected conductor segment in the first metal layer, and the lower plate locates in the second metal layer corresponding to the upper plate.
19 Citations
19 Claims
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1. A coplanar transformer, comprising:
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a primary coil, said primary coil comprising a first end point and a second point located on a first metal layer; a secondary coil, said secondary coil comprising a third end point and a fourth end point located on said first metal layer; and a first capacitor, said first capacitor comprising a first upper electrode plate located on said first metal layer and a first lower electrode plate located on a second metal layer, said first upper electrode plate and said first lower electrode plate being respectively electrically coupled with said first end point and said second end point. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A coplanar transformer, comprising:
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a primary coil, said primary coil comprising a first end point, a second end point, and a plurality of first conductor segments located on a first metal layer, and a plurality of first connected conductors located on a second metal layer, said first connected conductors being used to connect two of said first conductor segments; a secondary coil, said secondary coil comprising a third end point, a fourth end point, and a plurality of second conductor segments located on said first metal layer, and a plurality of second connected conductors located on said second metal layer, wherein each of said second connected conductors being used to connect two of said second conductor segments; and a capacitor, said capacitor comprising a upper electrode plate located on said first metal layer and a lower electrode plate located on a second metal layer, said upper electrode plate and said lower electrode plate being respectively electrically coupled with said first end point and said second end point. - View Dependent Claims (16, 17, 18, 19)
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Specification