This paper proposes a low-profile wideband circularly polarized (CP) antenna using solar cell patches as radiation elements and sequentially rotated feeding network for CubeSat applications. To realize wide axial ratio (AR) bandwidth with compact size, was designed by modifying quadrature hybrid coupler rat-race that has small change in phase difference even when the frequency changes. A CP pat...

Upright faces are thought to be processed holistically. However, the range of views within which holistic processing occurs is unknown. Recent research by McKone (2008) suggests that holistic processing occurs for all yaw-rotated face views (i.e., full-face through to profile). Here we examined whether holistic processing occurs for pitch, as well as yaw, rotated face views. In this face recogn...

This study deals with the problem of mainlobe jamming suppression for rotated array radar. The interference becomes spatially nonstationary while radar rotates, which causes mismatch between weight and snapshots thus loss target signal to noise ratio (SNR) pulse compression. In this paper, we explore spatial divergence sources consider anti-mainlobe as a generalized mixed (RAMS) model firstly. ...

A wide-beamwidth circularly polarized (CP) asymmetric microstrip antenna is proposed by etching four novel unequal fan-shaped notches at the vertexes of the square radiator. A bandwidth of 1.5% and beamwidth of 156◦ are well achieved for an axial-ratio ≤ 3 dB (3-dB AR) at the central frequency of 1.575GHz. To widen the bandwidth, the asymmetric microstrip antenna is further expanded with the co...

This note outlines the techniques routinely used in sonar systems to implement time domain and frequency domain beamforming systems. It takes a very simplistic approach to the problem and should not be considered as definitive in any sense. Consider an array of hydrophones receiving signals from an acoustic source in the far-field (Figure 1a). If the outputs from the 'phones are simply added to...

Abstract Droplet microfluidics is a powerful tool for diverse range of biomedical and industrial applications such as single-cell biology, synthetic digital PCR, biosafety monitoring, drug screening, food, feed, cosmetic industries. As an integral part droplet microfluidics, on-chip multiplexed sorting has recently gained enthusiasm, since it enables real-time single droplets containing cells w...

Multiple-subject magnetic resonance imaging (MRI) has been used in phenotyping studies to reduce the total experimental time by simultaneously capturing images of multiple animals using single or radio frequency (RF) coils. However, conventional methods must consider decoupling circuits minimize mutual inductance coupling between RF These unnecessarily increase field view (FOV) and image acquis...

This paper proposes a novel method for designing dual-polarized reconfigurable reflectarray antenna (RRA) based on symmetrically rotated sub-array operating in single-band. To improve aperture efficiency and prevent grating lobes, miniaturized unit cell of rectangular ring patch with size ...