Small Square Monopole Antenna for UWB Applications With Variable Frequency Band-Notch Function

Author

Ojaroudi, M. ; Ghanbari, G. ; Ojaroudi, N. ; Ghobadi, C.

Author_Institution

Dept. of Electr. Eng., Urmia Univ., Urmia, Iran

Volume

8

fYear

2009

fDate

7/1/1905 12:00:00 AM

Firstpage

1061

Lastpage

1064

Abstract

In this letter, a novel printed monopole antenna (PMA) for ultrawideband (UWB) applications with variable frequency band-notch characteristic is presented. The proposed antenna consists of a stepped square radiating patch with two U-shaped slots and a notched ground plane with a T-shaped sleeve that provides a wide usable fractional bandwidth of more than 140% (2.8516.73 GHz). By cutting two modified U-shaped slots with variable dimensions on the radiating patch, frequency band-stop performance is generated, and we can control its characteristics such as band-notch frequency and its bandwidth. The designed antenna has a small size of 12 times 19 mm² while showing the band rejection performance in the frequency band of 5.02-5.97 GHz.

Keywords

antenna radiation patterns; microstrip antennas; microwave antennas; monopole antennas; ultra wideband antennas; ultra wideband communication; T-shaped sleeve; U-shaped slots; band-notch function; frequency 5.02 GHz to 5.97 GHz; notched ground plane; printed monopole antenna; small square monopole antenna; stepped square radiating patch; ultrawideband applications; variable frequency; Square monopole antenna; T-shaped sleeve; U-shaped slot; ultrawideband (UWB);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2009.2030697

Filename

5210144