Abstract
Accurate MWM-based closed-form expressions are presented to determine total lumped capacitance C1 and effective radius Reff of a microstrip circular patch in the range 0.1 ≤ h / R ≤ 10 and ∈r ≤ 1, with maximum errors of 5% and 2.5% for Ct and Reff, respectively, on ∈r = 1. The results are compared to those obtained with Noble's variational method. For ∈r > 1, the error of the present model decreases. A graphical method is also presented to determine the Reff of the circular patch, which has an accuracy of < 1.5% versus the calculated value.
Original language | English |
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Pages (from-to) | 217-221 |
Number of pages | 5 |
Journal | Microwave and Optical Technology Letters |
Volume | 14 |
Issue number | 4 |
Publication status | Published - Mar 1997 |
Externally published | Yes |
Keywords
- Capacitance
- Circular patch
- Microstrip circular disk
- Resonators