Title :
Dual-broadband dielectric resonator antenna based on modified Sierpinski fractal geometry
Author :
Hu Liu ; Ying Liu ; Ming Wei ; Shuxi Gong
Author_Institution :
Sci. & Technol. on Antenna & Microwave Lab., Xidian Univ., Xi´an, China
Abstract :
A novel dual-broadband dielectric resonator antenna (DRA) is presented. The proposed antenna has realised both dual-band and wideband features by applying the modified Sierpinski structure to the antenna design of the proposed DRA. The measured impedance bandwidths for <;i>|S<;/i><;sub>11<;/sub><;i>|<;/i> <; -10 dB are 2.25-2.6 GHz (14.46%) and 3.1-4.1 GHz (27.78%), which can cover the wireless local area network (WLAN, 2.4-2.484 GHz) and the worldwide interoperability for microwave access (WiMAX, 3.4-3.69 GHz) bands. Meanwhile, stable radiation patterns and gains of about 5 and 3.8 dBi at 2.4 and 3.5 GHz, respectively, have been observed.
Keywords :
UHF antennas; WiMax; antenna radiation patterns; dielectric resonator antennas; fractal antennas; microwave antennas; multifrequency antennas; wireless LAN; DRA; WLAN bands; WiMAX bands; antenna design; dual-band features; dual-broadband dielectric resonator antenna; frequency 2.25 GHz to 2.6 GHz; frequency 3.1 GHz to 4.1 GHz; impedance bandwidths; modified Sierpinski structure; radiation patterns; wideband features; wireless local area network bands; worldwide interoperability for microwave access bands;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2015.0302
