Abstract
A simple wideband magneto-electric (ME) dipole antenna is
presented in this letter. In particular, two pairs of L-shaped slots
with different sizes are successively etched out of the pair of
horizontal patches of electric dipole, which can enlarge the bandwidth
of ME dipole antenna without increasing the antenna size. Two new
resonant frequency points are generated respectively at the lower and
upper frequency region. To improve the impedance matching
characteristics, two vertical rectangular patches are loaded in the
middle of the horizontal portion of the Г-shaped feed structure. A
prototype is fabricated and measured, and an overlapped bandwidth of
101.3% (from 1.36 GHz to 4.15 GHz) in terms of VSWR≤2 is achieved,
which can simultaneously cover the n50 (1.432GHz-1.517GHz),
n51(1.427GHz-1.432GHz), and n78 (3.300GHz to 3.800GHz) bands of sub-6G.
It should be highlighted that other excellent properties of ME dipole
antenna, such as stable radiation pattern, high gain, and low
cross-polarization level (CRPL), are maintained, which makes the
proposed ME dipole antenna a good candidate for sub-6G applications.
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