Title :
Novel Dual Circularly Polarized Radiating Element for Spherical Phased-Array Application
Author :
Kumar, C. ; Srinivasan, V.V. ; Lakshmeesha, V.K. ; Pal, S.
Author_Institution :
Commun. Syst. Group, ISRO Satellite Centre, Bangalore, India
fDate :
7/1/1905 12:00:00 AM
Abstract :
In this letter, the design of a novel dual circularly polarized (CP) radiating element suited for frequency reuse system is presented. Along with very good circular symmetric radiation pattern, this element has axial ratio better than 0.7 dB over 6% bandwidth and isolation between the LCP and RCP ports, better than 20 dB over 13% band width at X-band. With end-launch configuration, this element is very compact and well suited for spherical phased-array antenna (SPAA) application.
Keywords :
antenna phased arrays; antenna radiation patterns; electromagnetic wave polarisation; frequency allocation; microwave antenna arrays; satellite antennas; LCP ports; RCP ports; axial ratio; circular symmetric radiation pattern; dual circularly polarized radiating element; end-launch configuration; frequency reuse system; satellite communication systems; spherical phased-array application; Artificial satellites; Bandwidth; Low earth orbit satellites; Polarization; Radio frequency; Satellite antennas; Satellite broadcasting; Satellite ground stations; Structural beams; Wideband; Dual circular polarization; end-launcher; septum polarizer; spherical phased-array antenna (SPAA); waveguide radiating element;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2009.2026192
