Title :
Ultrawideband Antenna With Triple Band-Notched Characteristics Using Closed-Loop Ring Resonators
Author :
Almalkawi, Mohammad ; Devabhaktuni, Vijay
Author_Institution :
Electr. Eng. & Comput. Sci. Dept., Univ. of Toledo, Toledo, OH, USA
fDate :
7/3/1905 12:00:00 AM
Abstract :
The design of a simple multilayered triple band-notched ultrawideband (UWB) antenna is presented in this letter. The proposed antenna is compact in size, suitable for ultrawideband applications, and exhibits triple narrow frequency band notches to suppress the interference of the nearby wireless communication systems within a UWB frequency range. The narrow band notches are realized by adding closed-loop ring resonators designed to cover the 3.3-3.7-GHz, 5.15-5.35-GHz, and 5.725-5.825-GHz bands. The center frequencies of the band notches can be adjusted by varying the ring resonators´ mean diameters. The designed antenna has a compact volume of 33 × 30 × 1.524 mm3. The antenna is fabricated and tested providing broadband impedance matching, appropriate gain, and stable radiation pattern.
Keywords :
antenna radiation patterns; impedance matching; microwave antennas; multifrequency antennas; ultra wideband antennas; closed-loop ring resonators; frequency 3.3 GHz to 3.7 GHz; frequency 5.15 GHz to 5.35 GHz; frequency 5.725 GHz to 5.825 GHz; impedance matching; interference suppression; microwave antennas; radiation pattern; triple band-notched characteristics; ultrawideband antenna; Antenna measurements; Antenna radiation patterns; Optical ring resonators; Resonant frequency; Ultra wideband antennas; Wireless LAN; Closed-loop ring resonators; multilayered; triple band-notched; ultrawideband (UWB) antenna;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2011.2167649
