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High-gain wideband circularly polarized (CP) planar antenna array consisting of aperture-coupled magneto-electric (ME) dipole antennas is presented for millimeter-wave applications. Different from most reported CP antenna arrays, wide axial ratio (AR) bandwidth can be achieved by the proposed design without the use of sequential feed network. Furthermore, improved gain and antenna efficiency performance...
Cavity-backed patch antenna arrays with full corporate substrate integrated waveguide (SIW) feed networks are demonstrated at V-band for applications with the needs of high-gain antennas. A prototype of $16 \times 16$ radiating elements with a waveguide transition is fabricated by applying standard printed circuit board (PCB) facilities. A gain up to 30.1 dBi with a 3-dB gain bandwidth of 16.1%, an...
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