The theoretical limit for small antenna performance that was derived decades ago by
Wheeler and Chu governs design tradeoffs for size, bandwidth, and efficiency. Theoretical …

In this paper, a horizontally meandered strip (HMS) feed technique is proposed to achieve
good impedance matching and symmetrical broadside radiation patterns for a single-fed …

A compact cross-shaped slotted microstrip patch antenna is proposed for circularly polarized
(CP) radiation. A symmetric, cross shaped slot is embedded along one of the diagonal axes …

In this study, a novel design of circularly polarized antenna based on Koch fractal geometry
is presented and experimentally investigated. Circular polarization and size reduction are …

A simple technique is developed in this communication to increase the axial ratio (AR)
bandwidth and achieve good impedance matching of a single-fed low profile circularly …

A compact circularly polarized slot antenna is proposed in this communication, which has a
much wider operation bandwidth compared to the antennas with similar sizes. This antenna …

Compact, asymmetric\symmetric-slotted\slit-microstrip patch antennas on reactive
impedance surface (RIS) are proposed and studied for circularly polarized (CP) radiation …

A wide-beam circularly polarized (CP) asymmetric microstrip antenna with four unequal
circular-patches is proposed for global navigation satellite systems. Four unequal circular …

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 …

A novel ultra-wideband (UWB) circularly polarized (CP) antenna array with sequential phase
feed is proposed in this article. The element implements a multiresonance monopole to …