An Orthogonally Polarized Negative Resonance CRLH Patch Antenna

作者：Kahng Sungtek; Jeon Jinsu; Park Taejoon^*

来源：Journal of Electrical Engineering and Technology, 2015, 10(1): 331-337.

DOI：10.5370/JEET.2015.10.1.331

• Microstrip antennas
• Negative resonance
• Dual-Polarized antennas
• Mobile communication
• Antenna feeds

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.

• 出版日期2015-1