Global Navigation Satellite Systems (GNSS), including GPS, GLONASS, Galileo, and BeiDou, have become indispensable for a wide range of applications such as navigation, surveying, and timing ...

Abstract: Due to the excellent directivity and strong beam steering capabilities, circular concentric array antenna (CCAA) are frequently preferred over large circular array antennas. In contrast to ...

From wound healing to organ development, cells rely on biomechanical signals to navigate their environment, coordinate behavior, and maintain function. Yet, understanding how cells interpret these ...

Naturally, a “budget” iPhone is going to sacrifice a few good things, and the iPhone 16e — available for preorder now and shipping February 28th — does precisely that. Unlike the rest of Apple’s ...

The ultra-wideband, omnidirectional circular ring antenna has a height of 0.047 times the low-frequency wavelength and a width of 0.19 times the wavelength, offering an impedance bandwidth of 12:1.

School of Electronic Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, China ...

Electrical and Computer Engineering, University of Virginia, Charlottesville, Virginia 22904, United States Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States ...

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Abstract: Two-dimensional (2-D) direction of arrival (DOA) estimation with a circular array based on the difference co-array has attracted considerable attention in past years. In this paper, the ...