Title :
On the modal expansion of resonator field in the source region
Author :
Omar, A.S. ; Jensen, E. ; Lutgert, S.
Author_Institution :
Arbeitsbereich Hochfrequenztechnik, Tech. Univ. Hamburg-Harburg, Germany
fDate :
8/1/1992 12:00:00 AM
Abstract :
Two field expansions for the electromagnetic field radiated by electric and magnetic currents in a cavity resonator are presented. The first utilizes the cavity resonant modes only, while the other utilizes, in addition, the irrotational modes. The first expansion is shown to be more suitable if the exciting currents have volume distributions. On the other hand, the second expansion is more suitable if the resonator contains surface or filamentary current distributions. Typical examples are given to demonstrate the convergence behavior of the two expansions near and within the source region
Keywords :
cavity resonators; current distribution; electromagnetic fields; cavity resonator; convergence behavior; electromagnetic field; field expansions; filamentary current distributions; irrotational modes; magnetic currents; modal expansion; resonant modes; resonator field; source region; volume distributions; Antennas and propagation; Feedback; Frequency domain analysis; Magnetic resonance; Microstrip antennas; Microwave propagation; Microwave theory and techniques; NIST; Nonlinear equations; Notice of Violation;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
