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Journal of Electromagnetic Waves and Applications Volume 26, 2012 - Issue 14-15
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Articles

CPWG-fed reconfigurable beam steering antenna using dipole and loop combined structure

S.-J. Ha Graduate School of NID Fusion Technology, Seoul National University of Science and Technology, Seoul, 139-743, Korea
,
J.-Y. Kim Graduate School of NID Fusion Technology, Seoul National University of Science and Technology, Seoul, 139-743, Korea
,
Y.-J. Kim Inha Technical College, 253, Incheon, 402-752, Korea
,
T.-J. Park Department of Information and Communication Engineering, Daegu Gyeongbuk Institute of Science and Technology, Daegu, 711-873, Korea
,
B.-J. Lee Department of Electronics Convergence Engineering, Kwangwoon University, 447-1, Wolgye-Dong, Nowon-Gu, Seoul, 139-701, Korea
&
C.W. Jung Graduate School of NID Fusion Technology, Seoul National University of Science and Technology, Seoul, 139-743, KoreaCorrespondence[email protected]
Pages 1897-1902 | Received 26 Jun 2012, Accepted 04 Aug 2012, Published online: 24 Aug 2012
 
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Abstract

This paper proposes a coplanar waveguide with lower ground (CPWG)-fed reconfigurable beam steering antenna using a bended dipole and circular loop combined structure. The radiation patterns of the antenna head towards specific directions when the dipole and loop antenna are combined at a reasonable ratio. The proposed antenna can steer the beam directions by controlling two RF switches (PIN diode). The maximum beam directions are +30°, 0°, and −30° in the azimuth plane, and the overall gains are  dBi in the operation bandwidth of  GHz.

Acknowledgement

This work was supported by National Research Foundation (NRF) of Korea grant funded by the Korea government (No. 2011-0005692) and (No. 2011-0005389).

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