Title :
Efficient impedance coupling formulas for rectangular segment in planar microstrip circuits
Author :
Lim, Eng Gee ; Korolkiewicz, E. ; Scott, S. ; Aljibouri, B. ; Gao, Shi-Chang
Author_Institution :
Commun. Syst. Res. Group, Univ. of Northumbria, Newcastle upon Tyne, UK
Abstract :
A rectangular patch is one of the most common microstrip segments for which the Green´s function is known and is used in the segmentation and desegmentation analysis of complex antenna structures. The coupling impedances between ports on a microstrip segment are derived by integrating the associated Green´s function to obtain a result which involves the evaluation of double infinite series. In this paper the double infinite series is replaced by a single term together with a single infinite series to produce a computationally more efficient formula for the coupling impedance. Three coupling port configurations are examined and in each case numerically efficient formulas are derived.
Keywords :
Green´s function methods; electric impedance; electromagnetic coupling; integration; microstrip antennas; microstrip circuits; series (mathematics); Green´s function integration; antenna structures; coupling impedance; coupling port configurations; desegmentation analysis; double infinite series; efficient impedance coupling formulas; microstrip segment; numerical efficient formulas; planar microstrip circuits; rectangular patch antenna; rectangular segment; segmentation analysis; Copper; Coupling circuits; Dielectric losses; Feeds; Geometry; Impedance; Microstrip antennas; Patch antennas; Surface waves;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2003.814741
