EXPERIMENTALLY VALIDATED, WIDEBAND, COMPACT, OAM ANTENNAS BASED ON CIRCULAR VIVALDI ANTENNA ARRAY | Zendy

Tianming Yang | Zendy; Deqiang Yang | Zendy; Boning Wang | Zendy; Jianzhong Hu | Zendy

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EXPERIMENTALLY VALIDATED, WIDEBAND, COMPACT, OAM ANTENNAS BASED ON CIRCULAR VIVALDI ANTENNA ARRAY

Author(s) -

Tianming Yang,

Deqiang Yang,

Boning Wang,

Jianzhong Hu

Publication year - 2018

Publication title -

progress in electromagnetics research c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.341

H-Index - 34

ISSN - 1937-8718

DOI - 10.2528/pierc17110702

Subject(s) - vivaldi antenna , wideband , antenna (radio) , physics , circular buffer , acoustics , antenna array , optics , electronic engineering , computer science , engineering , telecommunications , antenna measurement , programming language

The bandwidth of OAM antennas, which have a great potential for multiple-input multipleoutput (MIMO) communication, must be wide enough. Unfortunately, most of researchers only care about the generation and characteristics of vortex beams carrying orbital angular momentum (OAM) but ignore the bandwidth of OAM antennas. To develop OAM antenna suitable for MIMO communication, Vivaldi antenna is used as the element of circular array because of its wide bandwidth. Three compact wideband circular Vivaldi antenna arrays that can generate vortex beams carrying OAM with numbers of modes l = 0, −2, +2 are proposed and experimentally validated in this paper. Measured results show that the proposed antennas can radiate vortex beams with different numbers of modes over a frequency range of 2.7–2.9 GHz.

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