Wideband Differential Phase Shifters Using Waveguides Filled by Inhomogeneous Dielectrics
A new structure is proposed for wideband differential phase shifter. This structure utilizes a waveguide filed by a longitudinally inhomogeneous dielectric along with a simple uniform waveguide. To optimally design the structure, the electric permittivity function of the inhomogeneous waveguide is expanded in a truncated Fourier series, firstly. Then, the optimum values of the coefficients of the series are obtained through an optimization approach to have low phase shift error and low reflection coefficient in a desired frequency bandwidth. The usefulness of the proposed structure is studied using some examples in the X-Band.
Mohammad Khalaj-Amirhosseini
Iran University of Science and Technology,Iran
国际会议
Progress in Electromagnetics Research Symposium 2009(2009年电磁学研究新进展学术研讨会)(PIERS 2009)
北京
英文
1513-1516
2009-03-23（万方平台首次上网日期，不代表论文的发表时间）