Publisher : The Korean Institute of Information and Commucation Engineering
DOI : 10.6109/jkiice.2015.19.10.2223
Title & Authors
Design and Fabrication of Modified Monopole Antenna for Wireless USB Dongle with WLAN system Applications Lee, Yeong-Seong; Mun, Seung-Min; Kim, Gi-Rae; Yoon, Joong-Han;
In this paper, we propose a built-in antenna for wireless USB dongle which has a modified structure from the existing planar monopole antenna. The proposed antenna implemented a dual-band characteristic by inserting Strip1, Strip2, Strip3 into the monopole structure combined with `n` shape and feeded 50-Ω using coaxial cable. The antenna is designed on an FR-4 substrate of which the dielectric constant is 4.6, and its overall size is 10 mm × 50 mm × 1mm. Based on the measurement results of the return loss, it was confirmed to satisfy the dual band resonance characteristics of 740 MHz (2.3 ~ 2.7 GHz) and 1,200 MHz (5.15 ~ 5.825 GHz) by -10 dB. In addition, we obtain the omni-directional radiation pattern measurements in the operating frequency bands, and the maximum gain of the proposed antenna has 2.26~3.81 dBi in the 2.4 GHz band and 2.21~5.79 dBi. in the 5.5 GHz band, respectively.
Wireless USB Dongle;Multiband antenna;WLAN application;
J. T. Kim, “Weekly Electronic Information] Industry Trend antenna for mobile phones,” KEIT Electronic Information Center, 2008.
K. L. Wong, Planar Antennas for Wireless Communications, Wiley-Interscience, 2003.
H. B. Kim, K. C. Hwang, and Y. B. Park, “Compact Stub-Loaded Meanderline Antenna for Wireless USB Dongle Devices,” Microwave and Optical Technology Letters, Vol. 52, NO. 10, pp. 2279-2282, Oct. 2010.
S. J. Jeong, K. C. Hwang and J. H. Shin, “Internal Hookshaped Patch Antenna for Multiband Wireless USB Dongle Application,” Journal of Electronic Engineering, Vol. 47, NO. 11, pp. 968-973, Nov. 2010.
S. J. Jeong, K. C. Hwang and J. H. Shin, “Printed Meander-Monopole Antenna for Multiband Wireless USB Dongle Applications,” Journal of the Korea Electromagnetic Engineering Society, Vol. 21, No.10, pp. 1154-1160, Oct. 2010.
Y. S. Yu and J. H. Choi, “A Compact Modified Monopole Type Internal Antenna for Wireless USB Dongle A pplication,” Microwave and Optical Technology Letters, Vol. 52, No.10 , pp. 198-201, Jan. 2010.
S. H. Lee and Y. J. Sung, “Multiband Antenna for Wireless USB Dongle Applications,” IEEE Antennas and Wireless Propagation Letters, Vol. 10, Mar. 2011.
S. J. Jeong and K. C. Hwang, “Stub-Loaded Bent Monopole Antenna with Independent Frequency Tuning Capability for Compact Wireless USB Dongles,” Microwave and Optical Technology Letters, Vol. 54, No. 11, pp. 2548-2552, Nov. 2012.
S. H. Lee and Y. J. Sung, “A compact Triple Antenna for a Wireless USB Dongle,” Journal of Electromagnetic Engineering and Science, Vol. 12, No. 2, pp. 185-188, Jun. 2012.
S. Chaimool, C. Chokchai, and P. Akkareakthalin, “Triple-Band USB Dongle Antenna Using Fractal and Shorted Loops for WiFi and WiMAX Applications,” Microwave and Optical Technology Letters, Vol. 55, No. 4, pp. 863-866, Apr. 2013.
E. A. Elghannai and R. G. Rojas, “Design of USB Dongle Antenna for WLAN Applications Using Theory of Characteristic Modes,” Electronics Letters, Vol. 50, No. 4, pp. 249-251, Feb. 2014.