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http://dx.doi.org/10.5370/JEET.2015.10.1.331

An Orthogonally Polarized Negative Resonance CRLH Patch Antenna  

Kahng, Sungtek (Dept. of Information and Telecommunication Engineering, Incheon national University)
Jeon, Jinsu (Dept. of Information and Telecommunication Engineering, Incheon national University)
Park, Taejoon (Department of Information and Communication Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST))
Publication Information
Journal of Electrical Engineering and Technology / v.10, no.1, 2015 , pp. 331-337 More about this Journal
Abstract
A novel fully-printed microstrip antenna with negative first resonance and dual polarization is proposed. The radiator is printed on the 1-layer substrate instead of multilayers. The -1st resonance results from a composite right- and left-handed(CRLH) structure that has a circumferentially interlocked gap capacitively coupling a patch with a shorted-ring. This compact antenna is provided with a dual-polarization capability by creating two orthogonal linear polarizations in one body with coaxial feeds. The design is carried out by doing full-wave EM field simulation which is compared with the measurement of the fabricated antenna prototype. The measured results give the gain of 5 dBi and the efficiency of 78% at the -1st resonance mode as the center frequency of a downlink channel of the bandwidth over 20 MHz with 29 dB polarization isolation for mobile communication.
Keywords
Microstrip antennas; Negative resonance; Dual-Polarized antennas; Mobile communication; Antenna feeds;
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