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The design of a dual band omnidirectional horizontally polarized antenna with arc‐shaped lines and overlapping lines
Author(s) -
Park JaeSung,
Choi HakKeun,
Oh JungHun
Publication year - 2016
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.29745
Subject(s) - omnidirectional antenna , coaxial antenna , antenna (radio) , antenna measurement , feed line , standing wave ratio , antenna factor , multi band device , optics , loop antenna , physics , electrical engineering , acoustics , computer science , engineering , microstrip antenna
This article proposes a dual‐band horizontally polarized omnidirectional antenna for wireless local area network (WLAN) applications. Typically, multiple elements with different sizes have been combined to create antennas that operate in two separate bands. Unlike such previous attempts, the proposed antenna achieves dual band operations by modifying the form of the feed line. The proposed antenna has a similar structure as the Alford loop antenna, but the existing straight feed lines of the Alford loop antenna are modified to arc‐shaped lines. The arc‐shaped feed lines are then attached to the antenna elements in four different directions. The voltage standing wave ratio (VSWR) of the proposed antenna is <2:1 at the 2.4 (2.4–2.48) and 5 (5.15–5.825) GHz WLAN bands. The gain of the proposed antenna is above 0 dBi at the two bands. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1117–1121, 2016