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We proposed a polarization-reconfigurable liquid dielectric resonator antenna (LDRA) with two switchable ± 45 ° linear polarizations. The proposed DRA is composed of three zones: the left zone, the middle zone, and the right zone. The middle zone is the common zone for both two states. When it is working at STATE 1, both the left and middle zones are filled with liquid and excited by a probe with...
A compact monopolar patch antenna is presented in this paper. The antenna has a wide bandwidth and a monopole-like radiation pattern. To reduce the whole size of the antenna, a substrate with high dielectric constant is adopted. Besides, three types of shorting pins and a triangle slot are added to the patch to widen the impedance bandwidth. The proposed antenna operates from 2.29 to 2.59 GHz for...
This paper introduces several emerging reconfigurable antenna elements for modern broadband wireless communication systems. Firstly, we will present a broadband uni-directional circular polarization (CP) reconfigurable antenna consisting of four planar monopole radiators and an broadband output phase reconfigurable feeding network. Switchable left-handed circular polarization (LHCP) and right-handed...
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