Design of Power Dividers using Defected Microstrip Structure and an Analytically Calculated Characteristic Line Impedance

  • Jongsik Lim

Abstract

In this work, a defected microstrip structure (DMS), methods to calculate the new characteristic impedance of DMS line, and, as an application example, a design of microwave wilkinson power dividers using DMS pattern are described. DMS patterns are inserted for the desirable effects of periodic structure such as size-reduction and increased line width for high characteristic impedance. In order to calculate the proper characteristic impedance of DMS microstrip line, the quarter-wavelength transformer model method and an analytic calculation method are adopted. As an example, the DMS microstrip line with 70.7  characteristic impedance is designed, calculated and inserted into the wilkinson power divider. The size of designed power divider with DMS patterns is only 82% of a reference power divider composed of normal microstrip lines, while the circuit performances are very well preserved even after the size-reduction.
Published
2014-12-31
How to Cite
Lim, J. (2014). Design of Power Dividers using Defected Microstrip Structure and an Analytically Calculated Characteristic Line Impedance . International Journal of Control and Automation, 7(2), 11 - 20. Retrieved from https://sersc.org/journals/index.php/IJCA/article/view/142
Section
Articles