Design of a microstrip-fed ultra-wideband monopole antenna having band rejection characteristic

Author

Roh, Yangwoon ; Chung, Kyungho ; Choi, Jaehoon

Author_Institution

Dept. of Electr. & Comput. Eng., Hanyang Univ., Seoul, South Korea

fYear

2005

fDate

3-8 July 2005

Firstpage

556

Abstract

A new compact and microstrip-fed ultra-wideband (UWB) monopole antenna having band rejection characteristic is proposed. By using tuning stub and stepped ground, the antenna provides an enhanced impedance bandwidth. The band stop characteristic is realized using an inverted-U shaped slot. The range of stop band can be adjusted by changing the length and width of the inserted slot. The measured impedance bandwidth of the proposed antenna ranges from 2.9 GHz to 12.1 GHz for VSWR < 2 while having the band rejection characteristic in the frequency band of 4.9 GHz to 6 GHz. This antenna shows a monopole-like radiation pattern and flat gain characteristic throughout the operating frequency band.

Keywords

antenna earths; antenna feeds; antenna radiation patterns; band-stop filters; impedance matching; microstrip antennas; monopole antennas; tuning; ultra wideband antennas; 2.9 to 12.1 GHz; UWB monopole antenna; band rejection; band stop characteristic; enhanced impedance bandwidth; flat gain characteristic; inverted-U shaped slot; microstrip-fed monopole antenna; monopole-like radiation pattern; stepped ground; tuning stub; ultra-wideband monopole antenna; Antenna measurements; Antenna radiation patterns; Bandwidth; FCC; Frequency measurement; Impedance; Microstrip antennas; Slot antennas; Ultra wideband antennas; Ultra wideband technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 2005 IEEE

Print_ISBN

0-7803-8883-6

Type

conf

DOI

10.1109/APS.2005.1552071

Filename

1552071