Title :
A new method for the computation of the insertion loss of magnetostatic-surface wave transducers
Author :
Freire, Manuel J. ; Marques, Ricardo ; Medina, Francisco
Author_Institution :
Dept. of Electron. & Electromagnetism, Univ. of Seville, Spain
Abstract :
A method is shown for the computation of the insertion loss of magnetostatic-surface wave transducers. In the first step of the method, a closed-form expression is derived for the solution of the telegrapher´s equations for the microstrip transducers. The insertion loss is then obtained from this solution as a function of three transmission line parameters, i.e., the propagation constant and the characteristic impedance of the YIG-loaded microstrip line and the mutual inductance between the two microstrips. In the second step, these transmission line parameters are numerically computed by applying a full-wave method of moments technique. The theoretical results obtained have been found to be in good agreement with experimental results.
Keywords :
loss measurement; magnetostatic surface waves; magnetostatic wave devices; method of moments; microstrip resonators; transducers; YIG-loaded microstrip line; characteristic impedance; closed-form expression; insertion loss; magnetostatic-surface wave transducers; method of moments; microstrip transducers; mutual inductance; propagation constant; telegraphers equations; three transmission line parameters; Closed-form solution; Equations; Insertion loss; Magnetic losses; Magnetostatic waves; Microstrip; Propagation constant; Propagation losses; Transducers; Transmission line theory;
Conference_Titel :
Microwave Conference, 2003. 33rd European
Print_ISBN :
1-58053-834-7
DOI :
10.1109/EUMC.2003.1262953
