In this communication, a new class of circularly polarized (CP) antennas is presented. It is
based on the utilization of stacked printed circuit boards (PCBs) in order to realize a quasi …

A simple and innovative method for designing a spiral folded printed quadrifilar helix
antenna (S-FPQHA) for dual-band operations is presented. The axial length of a …

This paper presents a novel formulation for a generalized helical antenna that incorporates
non-uniform helix diameters, non-uniform helix spacing, and non-uniform wire cross-section …

In this study, a wideband circularly polarized (CP) H-plane horn antenna based on Gap
Waveguide (GW) technology in K-band is presented. The proposed antenna consists of two …

In this communication, a compact dual-band quadruple inverted-F/L antenna (QIFLA), with
right-hand circular polarization (RHCP) for global positioning system (GPS) L1/L2 band, is …

The design and implementation of a spiral-folded printed quadrifilar helical antenna
(FPQHA) is presented for a global positioning system (GPS) L1-/L2-band application. The …

A tunable multiband folded printed quadrifilar helical antenna (FPQHA) is proposed.
Creating slot on the arms of FPQHA is a simple approach for designing multiband helical …

We show that by introducing a gap at the center of the helical sections (where the current is
minimum) of a lambda/2 quadrifilar helix antenna (QHA) and varying the axial length and …

A simple method for designing and optimising a multiband printed quadrifilar helix antenna
is presented. Using multiple arm techniques, a tri-band antenna working in L-band for GPS …

Helical antennas consist of a single conductor or multiple conductors wound into a helical
shape. Although a helix can radiate in many modes, the axial mode and the normal mode …