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The research on orbital angular momentum (OAM) grows into a hot topic in electromagnetic and wireless communication field owing to its higher spectrum efficiency compared with the conventional multiplexing technology. This paper proposes a new way that the technology of OAM and circular polarization are combined into the design of array antenna. Eight circular polarized corner cutting micro-strip...
This paper proposed a microstrip antenna with the operating bands of LTE700, LTE900 and LTE1800 for mobile device applications. This antenna was printed using FR-4 substrate material. The overall dimension of the antenna is 135 mm × 32 mm × 1.6 mm with 50 Ω impedance. The usage of ground plane can generate resonant modes to expand the bands at low frequency. Operating frequency bands of the antenna...
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