Small-Size Meandered Loop Antenna for WLAN Dongle Devices

Wen-Shan Chen; Chien-Min Cheng; Da-Huei Lee; Chun-Lin Ciou; Wei-Syun Sin; Guang-Yuan Cai

doi:10.1155/2014/897654

International Journal of Antennas and Propagation (Jan 2014)

Small-Size Meandered Loop Antenna for WLAN Dongle Devices

Wen-Shan Chen,
Chien-Min Cheng,
Da-Huei Lee,
Chun-Lin Ciou,
Wei-Syun Sin,
Guang-Yuan Cai

Affiliations

Wen-Shan Chen: Department of Electronic Engineering, Southern Taiwan University of Science and Technology, Tainan 710, Taiwan
Chien-Min Cheng: Department of Electronic Engineering, Southern Taiwan University of Science and Technology, Tainan 710, Taiwan
Da-Huei Lee: Department of Electronic Engineering, Southern Taiwan University of Science and Technology, Tainan 710, Taiwan
Chun-Lin Ciou: Department of Electronic Engineering, Southern Taiwan University of Science and Technology, Tainan 710, Taiwan
Wei-Syun Sin: Department of Electronic Engineering, Southern Taiwan University of Science and Technology, Tainan 710, Taiwan
Guang-Yuan Cai: Department of Electronic Engineering, Southern Taiwan University of Science and Technology, Tainan 710, Taiwan

DOI: https://doi.org/10.1155/2014/897654
Journal volume & issue: Vol. 2014

Abstract

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This paper proposes a loop-type USB dongle antenna, which is fabricated on a 1.6 mm thick FR-4 substrate for WLAN band systems. The front side of substrate consists of a 50-ohm coaxial line and a multiarm monopole antenna, while the back side has a meandered loop antenna connected to the ground by two via holes. The meandered loop resonates half-wavelength mode at about 2.4 GHz and its higher modes. The higher modes excited by the multiarm monopole form the 5.2 GHz frequency band. The bandwidth of the antenna covers the IEEE802.11 a/b/g WLAN applications. The overall dimensions of the antenna of 30 × 13.75 × 1.6 mm3 with an antenna area of 7.5 × 13.75 mm2 and a planar structure are exactly suitable for applying in dongle devices. The measured results of radiation patterns, antenna gain, and radiation efficiency are also proposed and discussed in the paper.

Published in International Journal of Antennas and Propagation

ISSN: 1687-5869 (Print); 1687-5877 (Online)
Publisher: Wiley
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering; Social Sciences: Transportation and communications: Cellular telephone services industry. Wireless telephone industry
Website: https://onlinelibrary.wiley.com/journal/8039

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