2023/05/11 by Lei Xiang, Fan Wu, Zhuo-Wei Miao +4
Engineering · #Advanced Antenna and Metasurface Technologies #Antenna (radio) #Antenna Design and Analysis #Antenna efficiency #Antenna gain #Axial ratio #Bandwidth (computing) #Broadband #Circular polarization #Computer science #Dipole #Dipole antenna #Full-Duplex Wireless Communications #Microstrip #Optics #Physics #Polarization (electrochemistry) #Radiation pattern #Telecommunications #Turnstile antenna #Wideband
paper · doi:10.1109/tap.2023.3273907
openalex publication_date 2023/05/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
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. The16×16element 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).