We propose the design and testing of a 2-D Fabry-Perot structure based on multilayer (ML) slab arrangement fed by circular array simple sources. Such class planar leaky-wave (LW) antenna can be made low-loss commercial laminates, it is bounded top subwavelength partially reflecting surface. The designed to suppress undesired radiation from quasi-TEM mode while leaking power excitation fast TM1 ...

This paper presents a general inequality for the grating lobes of the planar phased array, whether rectangular lattice or triangular lattice. And for the planar phased array with grating lobes, the maximum scanning angle is given.

PURPOSE Several studies have demonstrated the superiority of endorectal coil magnetic resonance imaging (MRI) over pelvic phased-array coil MRI at 1.5 Tesla for local staging of prostate cancer. However, few have studied which evaluation is more accurate at 3 Tesla MRI. In this study, we compared the accuracy of local staging of prostate cancer using pelvic phased-array coil or endorectal coil ...

APhased MIMO radar with full waveform diversity is proposed which divides the transmit array into overlapping subarrays in such a way that the number of subarrays are equal to the number of transmit antennas. Each subarray send sout a unique wave form towards the target of interest and thus provides a full waveform diversity, which results in the virtual extension of received array. This virtua...

Microwave, submillimetre-wave, and far-infrared phased arrays are of considerable importance for astronomy. We consider the behaviour imaging phased arrays and interferometric phased arrays from a functional perspective. It is shown that the average powers, field correlations, power fluctuations, and correlations between power fluctuations at the output ports of an imaging or interferometric ph...

This paper presents our research work on using the guided waves for damage detection generated by piezoelectric wafer active sensors (PWAS) arrays that are permanently attached to the structure. The data collection and processing is performed using the embedded ultrasonics structural radar (EUSR) concept. Research objectives includes: (a) improving damage detection in the array near field; (b) ...

We present a single crystalline silicon optical phased array using high-contrast-gratings (HCG) for fast two dimensional beamforming and beamsteering at 0.5 MHz. Since there are various applications for beamforming and beamsteering such as 3D imaging, optical communications, and light detection and ranging (LIDAR), it is great interest to develop ultrafast optical phased arrays. However, the be...