A Printed Monopole Antenna With Two Steps and a Circular Slot for UWB Applications

Author

Ahmed, Osama ; Sebak, Abdel-Razik

Author_Institution

Dept. of Electr. & Comput. Eng., Concordia Univ., Montreal, QC

Volume

7

fYear

2008

fDate

6/30/1905 12:00:00 AM

Firstpage

411

Lastpage

413

Abstract

This letter presents a printed monopole antenna with two steps and a circular slot for ultrawide band (UWB) applications. The proposed antenna is fabricated and tested. The proposed antenna has a wide frequency bandwidth of 8.4 GHz starting from 3 GHz up to 11.4 GHz for a return loss (S_11) of less than - 10dB and gain flatness over the frequency range. Measured results show also that the proposed antenna features satisfactory radiation characteristics within the achieved impedance bandwidth. By introducing a simple and proper narrow slot in the radiating element, frequency-notched characteristics can be obtained and a good band-notched performance in the 56 GHz band can be achieved.

Keywords

antenna radiation patterns; microstrip antennas; monopole antennas; slot lines; ultra wideband antennas; UWB applications; circular slot; frequency 3 GHz to 11.4 GHz; frequency-notched characteristics; printed monopole antenna; radiation characteristics; return loss; ultrawide band Applications; Planar monopole antenna; printed circuit board (PCB) antenna; radiation patterns; ultrawide band (UWB) antenna;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2008.2001026

Filename

4539796