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Low SAR planar monopole antenna for wireless communication applications

Published online by Cambridge University Press:  04 June 2013

Dalia M. Elsheakh  and
Esmat A. Abdallah
Dalia M. Elsheakh*
Affiliation:
Microstrip Department, Electronics Research Institute, Giza, Egypt. Phone: 01118976695
Esmat A. Abdallah
Affiliation:
Microstrip Department, Electronics Research Institute, Giza, Egypt. Phone: 01118976695
*
Corresponding author: Dalia M. Elsheakh Email: [email protected]
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Abstract

Simple internal multiband monopole antenna with low specific absorption rate (SAR) for most wireless communication applications is presented in this paper. The proposed antenna is an unequal arms monopole antenna with a meander stripoin the other substrate side. The antenna has a simple structure and it is sufficiently small in size to be easily fitted on the housing of a mobile phone or a universal serial bus (USB) dongle with size 20 × 50 × 0.8 mm3. The antenna is designed to operate in different bands to cover most of allocated wireless communication bands in the frequency range from 0.9 to 6 GHz. The proposed antenna has an acceptable average gain of about 2.75 dBi and an average efficiency of about 85% while providing a monopole radiation pattern in both horizontal and elevation planes, with average half-power beam width of 65° in the elevation plane. The simulation and the experimental results of the antenna are in agreement. The SAR in the human head is investigated by using CST 2012 Microwave Studio Hugo Voxel Model.

Keywords

Monopole antennaMultibandSpecific absorption rate (SAR)Mobile and universal serial bus (USB)
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 5 , Issue 5 , October 2013 , pp. 621 - 627
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2013 

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References

[1]Wireless USB Promoter Group [Online], Available at http://www.usb.org/developers/wusb/ (Accessed January, 2013).Google Scholar
[2]Park, P.; Choi, H.: Internal multiband monopole antenna for wireless-USB dongle application. Microw. Opt. Technol. Lett., 51 (7) (2009), 1786–1788.Google Scholar
[3]Wong, K.L.; Chou, L.C.: Internal composite monopole antenna for WLAN/WIMAX operation in a laptop computer. Microw. Opt. Technol. Lett., 48 (2006), 868–871.Google Scholar
[4]Ban, Y.-L.; Chen, J.-H.; Sun, S.-C., Li, J.L.-W.; Guo, J.-H.: Printed wideband antenna with chip-capacitor loaded inductive strip for LTE/GSM/UMTS WWAN wireless USB dongle applications. Prog. Electromagn. Res., 128 (2012), 313–329.Google Scholar
[5]Chen, W.-S.; Lee, B.-Y.; Chen, C.-H.: Small printed monopole antenna for wireless USB applications. J. Electromagn. Waves Appl., 24 (2010), 41–50.Google Scholar
[6]Gong, J.-G.; Jiao, Y.-C.; Wang, Q.; Li, J.; Zhao, G.: A miniaturized internal wideband antenna for wireless USB dongle application. Prog. Electromagn. Res. Lett., 17 (2010), 67–74.Google Scholar
[7]Pazin, L.; Telzhensky, N.; Leviatan, Y.: Wideband flat-plate inverted-F laptop antenna for WI-FI/WIMAX operation. IET Microw. Antennas Propag., 2 (2008), 568–573.Google Scholar
[8]IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz. IEEE International Committee on Electromagnetic Safety (SCC39), (2005).Google Scholar
[9]Wong, K.-L.; Chang, Y.-W.; Chen, S.-C.: Bandwidth enhancement of small-size planar tablet computer antenna using a parallel-resonant spiral slit. IEEE Trans. Antennas Propag., 60 (4) (2012), 1705–1711.Google Scholar
[10]Zheng, M.; Wang, H.; Hao, Y.: Internal hexa-band folded monopole/dipole/loop antenna with four resonances for mobile device. IEEE Trans. Antennas Propag., 60 (6) (2012), 2880–2885.Google Scholar
[11]Chang, S.-H.; Liao, W.-J.: A broadband LTE/WLAN antenna design for tablet PC. IEEE Trans. Antennas Propag., 60 (9) (2012), 4354–4359.CrossRefGoogle Scholar
[12]Tang, I-T.; Lin, D.B.; Chen, W.L.; Horng, J.H.: Miniaturized hexa band meandered PIFA antenna using three meandered-shaped slits. Microw. Opt. Technol. Lett., 50 (2008), 1022–1025.Google Scholar
[13]Li, F.; Ren, L.-S.; Zhao, G.; Jiao, Y.-C.: Compact triple band monopole antenna with C-shaped and S. Shaped meander strips for WLAN/WIMAX applications. Prog.Electromagn. Res. Lett., 15 (2010), 107–116.Google Scholar
[14]Ren, X.; Chen, X.; Huang, K.M.: A novel electrically small meandered line antenna with a trident-shaped feeding strip for wireless applications. Int. J. Antennas Propag., (2012), 1–7.Google Scholar
[15]ICNIRP: Guidelines for limiting exposure to time-varying electric, magnetic and electromagnetic fields (up to 300 GHz). Health Phys., 74 (1998), 494–522.Google Scholar
[16]Watanabe, S.I.; Nojima, M.T.; Fujiwara, O.: Characteristics of the SAR distributions in a head exposed to electromagnetic fields radiated by a hand-held portable radio. IEEE Trans. Antennas Propag., 44 (10) (1996), 1874–1883.Google Scholar
[17]Balanis, C.A.: Antenna Theory, Analysis and Design, 3rd ed., chapter4 (sec. 4.7), J.W. Wiley, 2005.Google Scholar