Co-Circularly Polarized Van Atta Array Enabled by Quasi-Monostatic STAR Antennas

Yen, Songyi; Boskovic, Ljubodrag; Filipović, Dejan S.

doi:10.1109/tap.2021.3069586

Cited by 8 publications

(2 citation statements)

References 24 publications

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“…The signal received by the antenna was retransmitted by its symmetrically disposed antenna. Several types of Van Atta array have been developed in recent years [6][7][8][9][10][11]. A planar passive circularly polarized retrodirective antenna array is proposed in [6] which covers a scan angle of ±30 • from boresight without interference by sidelobes.…”

Section: Introductionmentioning

confidence: 99%

“…A passive Van Atta retroreflector based on a dielectric-filled open-ended waveguide with a planar feeding network is proposed in [10]. A co-circularly polarized Van Atta array in [11] is enabled by a quasi-monostatic simultaneous transmitting and receiving element consisting of two quadrifilar helix antennas. However, these Van Atta arrays have drawbacks such as narrow band, poor isolation, and limited scanning range, which will influence the performance of power transmission system, especially far-field wireless power transmission.…”

Section: Introductionmentioning

confidence: 99%

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A Dual-Polarized Wide-Angle Scanning Antenna With High Isolation for Van Atta Applications

Dai¹,

Liu²

2022

PIER Letters

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A dual-polarized wide-angle scanning array antenna is proposed in this paper. The proposed antenna array consists of sixteen elements with the working band from 9.5 to 10.5 GHz. A microstrip patch fed from two orthogonal directions is applied to achieve dual-polarizations. In order to obtain good impedance matching and wide bandwidth of the antenna, capacitive coupling feeding is adopted. The measured results show that the proposed array can cover a wide scanning range of ±58 • . The polarization isolations of antenna are higher than 17 dB. The isolations between receiving sub-array and transmitting sub-array are higher than 22.3 dB. The proposed array antenna is suitable for Van Atta applications.

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