Low-Profile Magneto-Electric Dipole Antenna

(jan 2016)

Author-Chen Ding,Kwai-Man Luk

Abstract:

A novel low-profile magneto-electric dipole antenna is proposed and investigated. The antenna utilizes an obtuse-triangular structure to work as a magnetic dipole, which reduces the antenna thickness to 0.097λ0 (where λ0 is the free-space wavelength at the center frequency). A prototype with ground plane size of around 1λ0×1λ0 is fabricated and measured. Measurement result shows that the proposed design achieves an impedance bandwidth of 28.2% (1.67–2.22 GHz) for SWR<2. A stable gain of 9.2±1.1 dBi is realized. The antenna has a unidirectional radiation pattern with low cross polarization (<24 dB) and low back-radiation level (<13 dB) across the operating frequency band.

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