Three-dimensional unshielded microwave circuits were modeled using full-wave vector finite element method. A two-dimensional eigenvalue analysis is applied at the input and output ports to evaluate the dominant field distribution, reference voltage, propagation constant, and characteristic impedance of the transmission lines. The field distribution at the input port is used to excite the three-dimensional circuit. The propagation constant is used in the implementation of the first-order absorbing boundary conditions at the two ports, whereas the reference voltage and characteristic impedance are both used in the evaluation of the corresponding S-parameters.
|Number of pages||4|
|Journal||IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)|
|Publication status||Published - 1997|