A compact circularly polarized (CP) square-ring slotted patch antenna with vias is proposed
for global navigation satellite systems (GNSS). Four square-ring-shaped slots are cut …

In this letter, a compact and robust dual circularly polarized patch antenna for combined
Globalstar/GPS application has been presented. The designed patch antenna is …

A dual-band circularly polarized stacked annular-ring patch antenna is presented in this
letter. This antenna operates at both the GPS L1 frequency of 1575 MHz and L2 frequency of …

A dual-band single-feed circularly polarized, S-shaped slotted patch antenna with a small
frequency-ratio is proposed for GPS applications. An S-shaped slot is cut at the centre of a …

A compact wideband circularly polarized (CP) patch antenna utilizing a quad-feed network
(QFN) and quadruple semi-fan-annulus (QSFA) patches is proposed. For using a coupled …

A circularly polarized meshed patch antenna design is presented. The proposed antenna
consists of two square meshed patches, which generate two orthogonal linear polarizations …

A small size coplanar waveguide-fed dual wideband circularly polarized square slot
antenna (CPSSA) is presented. It composed of an inverted C-shaped patch, grounded-L …

A broadband stacked circular patch antenna is presented in this letter. The broadband
characteristic is achieved by employing capacitively coupled feed structure. The antenna is …

A compact dual-band and dual-circular polarization (CP) stacked patch antenna is
investigated for BeiDou navigation satellite system. The proposed antenna employs a single …

A novel coupling technique for circularly polarized square-ring patch antenna is developed
and discussed. The circular polarization (CP) radiation of the square-ring patch antenna is …