Details

Autor(en) / Beteiligte

• Xiang, Lei
• Wu, Fan
• Miao, Zhuo-Wei
• Jiang, Zhi Hao
• Yu, Chao
• Hong, Wei

Titel

A Wideband Circularly Polarized Magnetoelectric Dipole Transmitarray Antenna Based on Element Rotation Techniques

Ist Teil von

• IEEE transactions on antennas and propagation, 2023-08, Vol.71 (8), p.6953-6958

Ort / Verlag

New York: The Institute of Electrical and Electronics Engineers, Inc. (IEEE)

Erscheinungsjahr

2023

Quelle

IEEE Xplore Digital Library

Beschreibungen/Notizen

• In this communication, a wideband circularly polarized (CP) transmitarray antenna (TA) operating at the X-band is reported. A receive-and-transmit-type anisotropic magnetoelectric (ME) dipole is proposed as the broadband TA unit cell with low-insertion-loss characteristics. By employing the element rotation methodology, the continuous transmissive phase compensation is achieved, thus producing high-gain directive radiation. The [Formula Omitted] element CP TA implemented using the designed ME-dipole structure not only possesses wide measured 1- and 3-dB gain bandwidths of 24.5% (10.75–13.75 GHz) and 33.3% (10–14 GHz), respectively, but also yields a notable 1.5-dB axial ratio (AR) bandwidth of 37.4% (9.25–13.5 GHz). The peak gain of 24.3 dBic and the aperture efficiency of 46% are experimentally measured. The proposed CP TA shows attractive advantages, including wide bandwidth, high-purity circular polarization, and stable gain, which makes it a competitive candidate for many applications, including satellite communication (SatCom).