Title :
Comparison of the forward and backward logarithmic axicons
Author :
Yu, Yanzhong ; Dou, Wenbin
Author_Institution :
Sch. of Phys. & Inf. Eng., Quanzhou Normal Univ., Quanzhou, China
Abstract :
A logarithmic axicon can extend the depth of field (DOF). A comparison of diffractive/refractive behaviors is made between the forward and backward logarithmic axicons when illuminated by a uniform plane wave at millimeter wavelengths. To determine accurately their diffractive/refractive fields, a rigorous electromagnetic analysis method is adopted in the present paper. The comparison results and conclusions are given in the last section.
Keywords :
diffraction; electromagnetic fields; lenses; refraction; backward logarithmic axicons; depth of field; diffractive behaviors; forward logarithmic axicons; millimeter wavelengths; refractive behaviors; rigorous electromagnetic analysis method; uniform plane wave; Apertures; Diffraction; Lenses; Measurement by laser beam; Millimeter wave technology; Optimized production technology; System-on-a-chip;
Conference_Titel :
Microwave Conference Proceedings (CJMW), 2011 China-Japan Joint
Conference_Location :
Hangzhou
Print_ISBN :
978-1-4577-0625-7
Electronic_ISBN :
978-7-308-08555-7
