This paper presents a fluidically loaded microstrip patch antenna on multi-layered substrate with frequency and polarization reconfigurability in the 2400 MHz band. A square at all corners short circuited λg/4 long stubs is utilized. An arrangement of fluidic channels fabricated by moulding Polydimethylsiloxane (PDMS) 3D printed mould incorporated beneath each stub. By injecting or withdrawing ...

Abstract—Circularly-polarized arrays of cavity backed slot (CBS) antennas are proposed for X-band satellite-earth communications. Two configurations of such circularly polarized arrays are investigated: cross-shaped and square-shaped arrays. Both configurations can produce right-hand circular polarization (RHCP) as well as lefthand circular polarization (LHCP) by proper setting of excitation ph...

In this paper, a directional GPS antenna for L1 frequency 1575 MHz with RHCP and a high directive gain is proposed for indoor positioning applications. The proposed antenna is made of a standard off the shelf GPS patch antenna with an additional conical reflector to enhance the gain and the beamwidth of the antenna. The angle of the cone reflector is optimized by HFSS 11 software. Finally, the ...

It has been acknowledged that source databases recording experimentally supported human protein-protein interactions (PPIs) exhibit limited overlap. Thus, the reconstruction of a comprehensive PPI network requires appropriate integration of multiple heterogeneous primary datasets, presenting the PPIs at various genetic reference levels. Existing PPI meta-databases perform integration via normal...

This paper presents a GPS multipath mitigation method using a dual circularly polarized antenna array and a multi-channel receiver. The method is based on the exploitation of both polarization and spatial diversity associated with a GPS signal and its multipath signals available at the receiver input. Conventional GPS antennas are right-hand circularly polarized (RHCP) to suppress multipath con...

In this paper, a dual-band RF wireless power transfer (WPT) system with shared-aperture Tx array antenna for 2.4 and 5.8 GHz is proposed. The final configuration of the array, which made up right-handed circular polarization (RHCP) patches RHCP patches, derived from optimization thinned arrays, ultimately to achieve high transmission efficiency various WPT scenarios. including module implemente...

Abstract This article proposes 3D printed broadband transmissive metasurfaces for spin‐decoupled wavefront shaping based on a versatile cross‐polarization rotation meta‐atom. A meta‐atom combining cross‐linear polarization dynamic phase and Pancharatnam–Berry (P–B) is demonstrated to realize beam shaping. The built in an antenna‐circuit‐antenna fashion. Stacked patch antennas are used here as b...

This article presents a wideband dual-circular-polarization (dual-CP) antenna with high port isolation based on grooved-wall CP horn combined an orthomode transducer (OMT) in the W-band. A pair of grooves inner wall serves as inbuilt polarizer within antenna, which is capable generating both left-hand circular polarization (LHCP) and right-hand (RHCP) without any septum. The continuous linearly...

For the first time, rain effects on polarimetric observations of global navigation satellite system reflectometry (GNSS-R) are investigated. The physical feasibility tracking modifications in surface roughness by splash and salinity accumulation freshwater is theoretically discussed. An empirical analysis carried out using measurements a coastal GNSS-R station with two side-looking antennas rig...

Reflectometry of Global Navigation Satellite Systems (GNSS) signals from the ocean surface has provided a new source observations to study ocean-atmosphere interaction. We investigate sensitivity and performance GNSS-Reflectometry (GNSS-R) data retrieve sea roughness (SSR) as an indicator state. A set one-year in 2016 is acquired coastal GNSS-R experiment Onsala, Sweden. The exploits two sea-lo...