Premium
Parametric analysis of a band‐rejection antenna for UWB application
Author(s) -
Choi Jaehoon,
Chung Kyungho,
Roh Yangwoon
Publication year - 2005
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.21148
Subject(s) - monopole antenna , j pole antenna , ground plane , microstrip antenna , radiation pattern , standing wave ratio , band rejection , patch antenna , omnidirectional antenna , coaxial antenna , impedance matching , dipole antenna , acoustics , stub (electronics) , physics , optics , electrical engineering , engineering , antenna (radio) , electrical impedance
A compact and wideband microstrip‐fed printed monopole antenna with the band‐rejection characteristic is proposed. By adding a bent stub on the radiating patch and stepping the ground plane, the antenna provides an enhanced impedance‐matching characteristic over the desired frequency band. The band‐rejection characteristic is achieved by inserting an inverted‐U shaped slot on the circular patch. The range of the rejection band can be adjusted by modifying the length and width of the inserted slot. The measured impedance bandwidth of the proposed antenna ranges from 2.9 to 12.1 GHz for VSWR < 2, excluding the rejection band. This antenna shows an omnidirectional radiation pattern similar to that of a monopole antenna. The measured maximum‐gain variation is less than 4 dB over the operating‐frequency band. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 47: 287–290, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21148