Title :
Wideband Monopole Antenna With Three Band-Notched Characteristics
Author :
You-Zhi Cai ; Hong-Chun Yang ; Ling-Yun Cai
Author_Institution :
Sch. of Phys. Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A configuration of multiband and compact ultrawideband (UWB) antenna is present. The antenna is printed on a dielectric substrate and fed by microstrip line. The dimensions of square slots etched into the microstrip feedline can be used to tune the antennas´ band-notch and bandwidth characteristics. This antenna is designed to cover the bandwidth for UWB applications (3.1-10.6 GHz) with a VSWR lower than 2 and provide sufficient rejection band notches for WiMAX (3.3-3.88 GHz), WLAN (4.96-6.23 GHz), and ITU (7.9-8.7 GHz). A better gain pattern is realized by inserting slots in the microstrip feedline, compared to the defected structure. Furthermore, by the analysis of the current distribution on the antenna surface, we can deduce the equivalent circuit of the antenna.
Keywords :
WiMax; antenna feeds; microstrip antennas; multifrequency antennas; ultra wideband antennas; wireless LAN; ITU; UWB antenna; UWB applications; VSWR; WLAN; WiMAX; antenna band-notch characteristics; antenna fed; antenna surface; bandwidth 3.1 GHz to 10.6 GHz; bandwidth 3.3 GHz to 3.88 GHz; bandwidth 4.96 GHz to 6.23 GHz; bandwidth 7.9 GHz to 8.7 GHz; bandwidth characteristics; compact ultrawideband antenna; dielectric substrate; microstrip feedline; multiband antenna; rejection band notches; square slots; three band-notched characteristics; wideband monopole antenna; Feeds; Microstrip; Microstrip antennas; Slot antennas; Ultra wideband antennas; Band-notch characteristics; current distribution; gain patterns; ultrawideband antenna;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2014.2313178
