A method to reduce the volume of a circularly polarized Vivaldi-inspired antenna array by
bending radiation arms is proposed in this letter. Two orthogonal Vivaldi elements form a …

In this letter, a wideband circularly polarized four element multiple-input–multiple-output
(MIMO) antenna is reported. The impedance and the axial ratio bandwidth (ARBW) of …

A quad-mode dual-band dual-sense circularly polarized (CP) single patch antenna is
proposed. The four boresight radiating modes are obtained by simply loading a stub and U …

A planar wideband circularly polarized (CP) end-fire antenna is presented for millimeter-
wave (mm-wave) applications. First, the antenna consists of an open-ended substrate …

The miniaturization and decoupling of wideband stacked patch antennas is first presented in
this communication. The miniaturization is achieved by loading spoof surface plasmon …

This letter proposes a wideband metasurface (MTS) inspired circularly polarized (CP)
antenna array working in the Ka-band, which consists of 2× 2 antenna subarrays fed by a …

An electrically-large multi-port metaloop antenna is proposed for multi-object near-field
sensing with the advantage of uniform field distribution over a large area. The proposed …

We present a circularly polarized single-feed stacked patch antenna with wide axial ratio
bandwidth, suitable for both coaxial probe feeding and coplanar microstrip feeding. The …

Broadband antennas with a low-profile generating circular polarization are always in
demand for handheld/portable devices as CP antennas counter multipath and misalignment …

In this paper, we report a sequential-phase fed broadband circularly polarized array antenna
loaded with an artificial magnetic conductor-reflecting surface. Our proposed antenna is a …