Abstract: This paper proposes a large-spacing scanning phased array based on U-slot patch antennas. A genetic algorithm is used to optimize the beamforming for a $1 \times 5$ subarray. And taking into ...

Description: 👉 Learn how to write a given sum or difference of two angles formula expression as a single sum/difference of angles trigonometric function. To do this, we first identify the ...

Learn how to write the sum from a geometric series. A series is the sum of the terms of a sequence. A geometric series is the sum of the terms of a geometric sequence. The formula for the sum of n ...

Abstract: This research focuses on the design, fabrication and testing of a compact, flexible 4-element array using Aerosol jet printing technology (AJP). The array operates at ISM-band 2.45 GHz for ...

We present a near-complete proof that no odd weird numbers exist. Our approach reduces the problem to showing that no odd number n satisfies σ(n) = 2n + 2 (abundance exactly 2). We establish this ...