Open AccessAn Orthogonally Polarized Negative Resonance CRLH Patch Antenna
Author(s) -
Sungtek Kahng,
Jinsu Jeon,
Taejoon Park
Publication year - 2015
Publication title -
journal of electrical engineering and technology/journal of electrical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.226
H-Index - 27
eISSN - 2093-7423
pISSN - 1975-0102
DOI - 10.5370/jeet.2015.10.1.331
Subject(s) - microstrip antenna , patch antenna , resonance (particle physics) , bandwidth (computing) , coaxial antenna , physics , microstrip , optics , optoelectronics , electrical engineering , materials science , acoustics , engineering , antenna (radio) , telecommunications , particle physics
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.