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

Volume

10

fYear

2011

fDate

7/3/1905 12:00:00 AM

Firstpage

959

Lastpage

962

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;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2167649

Filename

6017094