New Cad Model of the Microstrip Interdigital Capacitor
A new model for the microstrip line interdigital capacitor is proposed. This model consists of calculating the 2N×2N Y-matrix of the N coupled lines using the multiple coupled line tool. Then, this matrix is reduced to a 2×2 matrix using simple circuit theory. The capacitance at the end of each fing...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2004-01-01
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| Series: | Active and Passive Electronic Components |
| Online Access: | http://dx.doi.org/10.1080/08827510310001648870 |
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| _version_ | 1832545397739880448 |
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| author | Nihad Dib Qiu Zhangb Ulrich Rohde |
| author_facet | Nihad Dib Qiu Zhangb Ulrich Rohde |
| author_sort | Nihad Dib |
| collection | DOAJ |
| description | A new model for the microstrip line interdigital capacitor is proposed. This model consists of calculating the
2N×2N Y-matrix of the N coupled lines using the multiple coupled line tool. Then, this matrix is reduced to a
2×2 matrix using simple circuit theory. The capacitance at the end of each finger is taken into consideration using closed-form expression of the coplanar waveguide open-end capacitance. This model can predict the resonances that might appear around the quarter-wavelength frequency. These resonances are caused by the
coupling between the fingers and exist only in capacitors with four fingers or more. Very good agreement is obtained between the results of our model and those obtained using the software HFSS and measurements. |
| format | Article |
| id | doaj-art-c2da85eab0f44775a77514b3a63d3d8f |
| institution | Kabale University |
| issn | 0882-7516 1563-5031 |
| language | English |
| publishDate | 2004-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Active and Passive Electronic Components |
| spelling | doaj-art-c2da85eab0f44775a77514b3a63d3d8f2025-02-03T07:26:00ZengWileyActive and Passive Electronic Components0882-75161563-50312004-01-0127423724510.1080/08827510310001648870New Cad Model of the Microstrip Interdigital CapacitorNihad Dib0Qiu Zhangb1Ulrich Rohde2Electrical Engineering Department, Jordan University of Science and Technology, P.O. Box 3030, Irbid 22110, JordanAnsoft Corporation, Elmwood Park, NJ, USASynergy Microwave Corporation, Paterson, NJ, USAA new model for the microstrip line interdigital capacitor is proposed. This model consists of calculating the 2N×2N Y-matrix of the N coupled lines using the multiple coupled line tool. Then, this matrix is reduced to a 2×2 matrix using simple circuit theory. The capacitance at the end of each finger is taken into consideration using closed-form expression of the coplanar waveguide open-end capacitance. This model can predict the resonances that might appear around the quarter-wavelength frequency. These resonances are caused by the coupling between the fingers and exist only in capacitors with four fingers or more. Very good agreement is obtained between the results of our model and those obtained using the software HFSS and measurements.http://dx.doi.org/10.1080/08827510310001648870 |
| spellingShingle | Nihad Dib Qiu Zhangb Ulrich Rohde New Cad Model of the Microstrip Interdigital Capacitor Active and Passive Electronic Components |
| title | New Cad Model of the Microstrip Interdigital Capacitor |
| title_full | New Cad Model of the Microstrip Interdigital Capacitor |
| title_fullStr | New Cad Model of the Microstrip Interdigital Capacitor |
| title_full_unstemmed | New Cad Model of the Microstrip Interdigital Capacitor |
| title_short | New Cad Model of the Microstrip Interdigital Capacitor |
| title_sort | new cad model of the microstrip interdigital capacitor |
| url | http://dx.doi.org/10.1080/08827510310001648870 |
| work_keys_str_mv | AT nihaddib newcadmodelofthemicrostripinterdigitalcapacitor AT qiuzhangb newcadmodelofthemicrostripinterdigitalcapacitor AT ulrichrohde newcadmodelofthemicrostripinterdigitalcapacitor |