Investigation Of Gyroelectric Waveguides With Anisotropic Dielectric Layer

• Main Authors: Darius Plonis, Vacius Mališauskas
• Format: Article
• Language: English
• Published: Vilnius Gediminas Technical University 2014-05-01
• Series: Mokslas: Lietuvos Ateitis
• Subjects: gyroelectric waveguides, anisotropic dielectric layer, differential phase shift, mode attenuation coefficient.
• Online Access: http://www.mla.vgtu.lt/index.php/mla/article/view/643

<p class="14AbstracttekstasAbstract"><span lang="EN-GB">In this paper the open, circular cross-section cylindrical gyro- electric <em>p</em>-GaAs (semiconductor-dielectric) waveguides with temperature-sensitive anisotropic dielectric layer are investigated. The gyroelectric phase shifters without anisotropic dielectric layer are not effective. The anisotropic layer increases the mode HE₁₁ differential phase shift to 1060° and 1250°, when temperature<em> T </em>= (125–200) K, <em>N</em> = 5∙10¹⁹ and <em>N</em> = 10²⁰ m^–3 respectively. Propagated mode HE₁₁ in gyroelectric <em>p</em>-GaAs waveguides, the attenuation coefficient increases, increasing the concentration of holes. The anisotropic dielectric layer reduces the mode attenuation, it is appropriate to create gyroelectric mode phase shifters with a lower hole concentration and anisotropic dielectric layer.</span></p>