circularly-polarized antenna is built based on new siw(substrate integrated waveguide)structure which contains cavity-backed resonator and a conventional polarized ring with twosquare slits in inner and outer ring that differ 90° at position and is proposed for right-handedcircular polarization (rhcp) and fabricated in two separate layers. a broadband impedancebandwidth of 13.9% and a rhcp axia...

circularly-polarized antenna is built based on a new siw (substrate integrated waveguide)structure which contains cavity-backed resonator and a conventional polarized ring with twosquare slits in inner and outer ring that differ 90° at position and is proposed for right-handedcircular polarization (rhcp) and fabricated in two separate layers. a broadband impedancebandwidth of 13.9% and a rhcp a...

circularly-polarized antenna is built based on new SIW(substrate integrated waveguide)structure which contains cavity-backed resonator and a conventional polarized ring with twosquare slits in inner and outer ring that differ 90° at position and is proposed for right-handedcircular polarization (RHCP) and fabricated in two separate layers. A broadband impedancebandwidth of 13.9% and a RHCP axia...

Recently, we reported that the type 6 secretion system (T6SS) of Aeromonas hydrophila SSU plays an important role in bacterial virulence in a mouse model, and immunization of animals with the T6SS effector haemolysin co-regulated protein (Hcp) protected them against lethal infections with wild-type bacteria. Additionally, we showed that the mutant bacteria deleted for the vasH gene within the T...

A photoreactive rhodium dithionite complex [(RhCp(Et))(2)(μ-CH(2))(2)(μ-O(2)SSO(2))] (1(Et)) with Cp(Et) (η(5)-C(5)Me(4)Et) ligands was newly synthesized. Upon short-time irradiation with low intensity light, two kinds of stepwise surface morphology changes of the crystal 1(Et) were observed. Prolonged irradiation with high intensity light caused cracking and breaking down of the crystal.

Figure 1 Four sample Quadrifilar Antennas T he Quadrifilar Helix Antenna as shown in Figure 1 has already been described in detail and discussed in references [1], [2], [3], [4]. That discussion will not be repeated here. Unfortunately, very little has been written on how to built a Quadrifilar Helix Antenna to radiate with RHCP (Right Hand Circular Polarization) or with LHCP (Left Hand Circula...

This work presents the design of a compact dual-port circularly polarized antenna based on new coupler topology. The can radiate right-hand circular polarization (RHCP) in two opposite directions depending input port. In proposed structure, radiating system has three inverted F antennas connected to 120∘ hybrid coupler. modeling and 5-ports are described experimentally validated. prototype is f...

This paper presents a linear-to-dual-circular polarization metasurface decomposer, which decomposes linearly polarized (LP) planar incident wave into pair of circular (CP) waves, namely, right-handed (RHCP) and left-handed (LHCP) wave, scatters them different directions. The proposed decomposer is composed series rotated trimming stub loaded patches. two CP components are excited due to the per...

A simple single-feeding circular polarization (CP) antenna with controlled left/right-hand characteristics is proposed and investigated for GPS L2 band applications. To achieve the CP characteristics, four arc-shaped cutting corners different sizes are removed from a patch to give 90∘ phase difference implement CP. By adjusting radius of corners, can be get (L/RHCP). The modeled, simulated, fab...

GPS has become an attractive feature for geolocalization enabling asset tracking IoT devices. satellite antennas radiate RHCP (right-hand circularly polarized) electromagnetic waves; thus, the typical antenna at receiver is also RHCP. However, when orientation of receiving device random, linear polarization operate better in terms TTFF (time to first fix). Through field measurements (urban and ...