Design of a Band-Notched UWB Monopole Antenna by Means of an EBG Structure

Author

Yazdi, Mohammad ; Komjani, Nader

Author_Institution

Dept. of Electr. Eng., Iran Univ. of Sci. & Technol., Tehran, Iran

Volume

10

fYear

2011

fDate

7/3/1905 12:00:00 AM

Firstpage

170

Lastpage

173

Abstract

In this letter, a new compact ultra wideband circular monopole antenna with an acceptable band-rejection characteristic is investigated. This rejection band is created by means of an electromagnetic band-gap (EBG) structure. The EBG structure that is used here is a mushroom-like structure. An equivalent circuit model is employed to investigate the stopband characteristic of the EBG. The operation frequency band is 3.1-10.6 GHz with a rejection band of 0.7 GHz around 5.5 GHz. Accurate and high rejection is achieved. The proposed model is implemented, and the measured results are in good agreement with simulated ones.

Keywords

equivalent circuits; monopole antennas; photonic band gap; ultra wideband antennas; EBG structure; acceptable band-rejection characteristic; band-notched UWB monopole antenna; compact ultra wideband circular monopole antenna; electromagnetic band-gap structure; equivalent circuit model; frequency 0.7 GHz; frequency 3.1 GHz to 10.6 GHz; operation frequency band; stopband characteristic; Antenna measurements; Antenna radiation patterns; Metamaterials; Periodic structures; Ultra wideband antennas; Band rejection; electromagnetic band-gap (EBG) structure; ultrawideband (UWB) antenna;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2011.2116150

Filename

5715851