Based on a duality relationship between magnetic and dielectric substrates, the characteristic impedance, propagation content and phase shift characteristic of microstrip line on longitudinally-ferrite substrates are ...Based on a duality relationship between magnetic and dielectric substrates, the characteristic impedance, propagation content and phase shift characteristic of microstrip line on longitudinally-ferrite substrates are researched. The conclusion can be drawn that they are proportional to bandwidth of microstrip line, and the higher the frequency is, the better the linearity is, and greater bandwidth can be achieved. The research can provide theoretical basis for the design of microstrip ferrite derices.展开更多
In this work, a compact finite-difference time-domain (FDTD) algorithm with a memory-reduced technique is proposed for the dispersion analysis of rectangular waveguides either fully or partially loaded with longitudin...In this work, a compact finite-difference time-domain (FDTD) algorithm with a memory-reduced technique is proposed for the dispersion analysis of rectangular waveguides either fully or partially loaded with longitudinally-magnetized ferrite. In this algorithm, the divergence theorem is used to eliminate the longitudinal components of the electric and magnetic flux densities. The mobius transform (MT) technique is applied for the first time to obtain the equations relating the magnetic field to the magnetic flux density in a ferrite medium. Some examples are presented to validate the obtained algorithm with numerical results: good agreement is obtained with a significant reduction in the memory space requirement compared to the conventional algorithm.展开更多
基金Scientific Research Foundation of Shandong University of Science and Technology for Recruited Talents
文摘Based on a duality relationship between magnetic and dielectric substrates, the characteristic impedance, propagation content and phase shift characteristic of microstrip line on longitudinally-ferrite substrates are researched. The conclusion can be drawn that they are proportional to bandwidth of microstrip line, and the higher the frequency is, the better the linearity is, and greater bandwidth can be achieved. The research can provide theoretical basis for the design of microstrip ferrite derices.
文摘In this work, a compact finite-difference time-domain (FDTD) algorithm with a memory-reduced technique is proposed for the dispersion analysis of rectangular waveguides either fully or partially loaded with longitudinally-magnetized ferrite. In this algorithm, the divergence theorem is used to eliminate the longitudinal components of the electric and magnetic flux densities. The mobius transform (MT) technique is applied for the first time to obtain the equations relating the magnetic field to the magnetic flux density in a ferrite medium. Some examples are presented to validate the obtained algorithm with numerical results: good agreement is obtained with a significant reduction in the memory space requirement compared to the conventional algorithm.
