Title :
A transmission polarizer based on width-modulated lines and slots
Author :
Ranga, Yogesh ; Thalakotuna, D. ; Esselle, Karu P. ; Hay, Stuart G. ; Matekovits, Ladislau ; Orefice, Mario
Author_Institution :
Wireless Network Technol. Lab., CSIRO, Epping, NSW, Australia
Abstract :
In this paper a novel printed Frequency Selective Surface (FSS) transmission polarizer is presented. A width-modulated microstrip unit cell is used as the reference element, loaded by a capacitive tuning slot, to achieve the desired axial ratio (AR) performance for the transmitted electromagnetic wave. The dimensions of the unit cell are λ0/2×λ0/2 at 30 GHz. This polarizer provides an axial ratio of 0.99 at the resonance and a cross polarization lower than -20 dB in a more than 5% bandwidth. Theoretical analysis and results of numerical investigations related to the new structure are presented.
Keywords :
electromagnetic wave polarisation; electromagnetic wave transmission; frequency selective surfaces; microstrip antennas; microwave antennas; slot antennas; FSS transmission polarizer; capacitive tuning slot; frequency 30 GHz; microstrip unit cell; printed frequency selective surface; reference element; transmitted electromagnetic wave; width-modulated lines; width-modulated slots; Australia; Frequency selective surfaces; Geometry; Microstrip; Polarization; Surface waves;
Conference_Titel :
Antenna Technology (iWAT), 2013 International Workshop on
Conference_Location :
Karlsruhe
Print_ISBN :
978-1-4673-2830-2
Electronic_ISBN :
978-1-4673-2829-6
DOI :
10.1109/IWAT.2013.6518352
