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A compact spiral stripline‐loaded monopole antenna with a vertical ground plane
Author(s) -
Khang Nguyen Truong,
Lee Keekeun,
Choo Hosung,
Park Ikmo
Publication year - 2008
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.23043
Subject(s) - monopole antenna , stripline , ground plane , radiation pattern , helical antenna , dipole antenna , standing wave ratio , electrical engineering , physics , j pole antenna , optics , antenna (radio) , engineering , coaxial antenna , microstrip antenna
In this letter, we propose a compact spiral stripline‐loaded monopole antenna on a vertical ground plane. The measured results show that the antenna has a fractional bandwidth of 12.1% for a voltage standing wave ratio (VSWR) less than 2 at the center frequency of 1.10 GHz, as well as a good omni‐directional radiation pattern. The small size of 0.04 λ o × 0.04 λ o × 0.04 λ o makes it promising for use as an internal antenna in mobile handsets. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 250–252, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23043