Title :
Broadband reflectarray with single layer sub-wavelength patch elements fed by SIW tapered slot antenna
Author :
Zhen-Guo Liu ; Yong-Xin Guo
Author_Institution :
State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China
Abstract :
A broadband reflectarray antenna consists of the elements of square patches with sub-wavelength periodicity, printed on a single-layer substrate, and an SIW-Based ALTSA (Antipodal Linear Tapered Slot Antenna) acting as fed is proposed and designed for bandwidth enhancement. It has about 16.5 % bandwidth for -1.0 dB gain-drop from the peak value, which is obviously wider than that of conventional reflectarray. It is indicated that the phase dynamic range in sub-wavelength periodicity reflectarry is not the key reason to effect on its bandwidth.
Keywords :
antenna feeds; broadband antennas; microstrip antenna arrays; reflectarray antennas; slot antenna arrays; substrate integrated waveguides; SIW tapered slot antenna; SIW-based ALTSA; antipodal linear tapered slot antenna; broadband reflectarray antenna; gain -10 dB; phase dynamic range; single layer sub-wavelength patch elements; single-layer substrate; square patches element; subwavelength periodicity reflectarry; Bandwidth; Broadband antennas; Broadband communication; Microstrip; Microstrip antennas; Reflector antennas; Slot antennas; Broadband; Reflectarray; SIW; Subwavelength; Tapered slot antenna;
Conference_Titel :
Microwave Conference Proceedings (APMC), 2012 Asia-Pacific
Conference_Location :
Kaohsiung
Print_ISBN :
978-1-4577-1330-9
Electronic_ISBN :
978-1-4577-1331-6
DOI :
10.1109/APMC.2012.6421595
