A Circuit model to Compute Impedance of Electromagnetically Coupled Ring Antenna

Conference: EuCAP 2009 - 3rd European Conference on Antennas and Propagation
03/23/2009 - 03/27/2009 at Berlin, Germany

Proceedings: EuCAP 2009

Pages: 3Language: englishTyp: PDF

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Mahajan, Madhurika (Department of Physics, Chitkara University, Barotiwala, Distt-Solan (HP), India)
Chakarvarty, T. (Embedded systems Innovation Lab, Tata Consultancy Services, Abhilash, Banglore-560066, India)
Khah, Sunil Kumar (Department of Physics, Jaypee University of Information Technology, Waknaghat, Distt-Solan-173215 (HP), India)

In the present work a new numerical model using, the cavity model along with circuit theory has been used to calculate input impedance of a ring resonator loaded by a microstrip line. This type of model has not been investigated yet. A ring resonator is fed by a narrow microstrip line underneath the ring. The proposed structure is analyzed and the input impedance is computed. The computed results are then compared with simulation. This model is a simple method to predict the input impedance of a loaded ring resonator by a microstrip line. In this proposed model a ring is used for the purpose of radiation in its fundamental mode.