Title :
Tunable ring-loaded patch element for beam-steerable reflectarray applications
Author :
Trampler, Michael E. ; Karnati, K.K. ; Xun Gong
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Central Florida, Orlando, FL, USA
Abstract :
In this paper, a tunable multi-resonant element designed by coupling a ring element to a microstrip patch antenna is presented. By loading the antenna element with a variable Barium Strontium Titanate (BST) capacitor, tunability is realized. To showcase its enhanced performance, compared to single resonant elements, a reference patch and a ring are also simulated. The ring-loaded patch element is shown to have a significantly higher phase range and enhanced bandwidth compared to the reference elements. The presented unit cell finds applications where higher phase ranges and compact form-factor are desired for reflectarray design.
Keywords :
barium compounds; beam steering; capacitors; circuit tuning; microstrip antennas; reflectarray antennas; barium strontium titanate capacitor; beam-steerable reflectarray application; compact form-factor; microstrip patch antenna; phase range; tunability; tunable multiresonant element; tunable ring-loaded patch element; variable BST capacitor; Antennas; Indexes; Microwave measurement; Radio access networks; BST; Microstrip antennas; rectangular waveguides; reflectarray;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6904840
