Title :
A coupler with losses in millimetre waves
Author :
Fernandes, Humberto César Chaves ; De Freitas, Luiz Carlos, Jr. ; Silva, Sidney Alexandre Pinto
Author_Institution :
Dept. of Electr. Eng., Univ. Fed. do Rio Grande do Norte, Natal, Brazil
Abstract :
An electromagnetic application to obtain the coupling parameters of the unilateral fin lines coupler asymmetric in the E-plane, with semiconductor substrate is presented. The effective dielectric constant, the attenuation constant and the characteristic impedance, for the odd and even-modes excitation are obtained by Transverse Transmission Line method-TTL. Computer programs, developed in FORTRAN 77 language, given the results of the coupling in 3-D, obtained as function of the frequency, conductivity and permittivity. These results are compared with references and present good agreement
Keywords :
electric impedance; electrical engineering computing; fin line components; losses; millimetre wave couplers; permittivity; waveguide theory; E-plane asymmetry; EHF; FORTRAN 77 language; MM-wave coupler; attenuation constant; characteristic impedance; computer programs; conductivity; coupling parameters; effective dielectric constant; even-mode excitation; losses; millimetre wave region; odd-mode excitation; permittivity; semiconductor substrate; transverse transmission line method; unilateral fin lines coupler; Application software; Attenuation; Conductivity; Dielectric constant; Dielectric substrates; Electromagnetic coupling; Frequency; Impedance; Permittivity; Transmission lines;
Conference_Titel :
Microwave and Optoelectronics Conference, 1997. Linking to the Next Century. Proceedings., 1997 SBMO/IEEE MTT-S International
Conference_Location :
Natal
Print_ISBN :
0-7803-4165-1
DOI :
10.1109/SBMOMO.1997.646796
