Akademik Veri Yönetim Sistemi
2024 IEEE International Symposium on Antennas and Propagation and INC/USNCURSI Radio Science Meeting, AP-S/INC-USNC-URSI 2024, Florence, İtalya, 14 - 19 Temmuz 2024, ss.2113-2114
Mutual impedance between two closely spaced an-tennas is analytically computed using spherical harmonics and reaction theorem. When two antennas are closely spaced, a reaction surface that lies completely in the convergence region of spherical wave expansion of both antennas can not be found. In this study, a method that overcomes this problem is introduced. The mutual impedance is expressed as a summation of the product of spherical harmonic coefficients of antennas. The validity of the proposed method is confirmed by analyzing half-wave dipoles and printed dipoles. In the latter case, the results are also confirmed by measurement.