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14 Low-Cost Index Funds and ETFs for May 2026

Low-cost index funds and ETFs make high expense ratios a thing of the past. Many, or all, of the products featured on this page are from our advertising partners who compensate us when you take ...
IEEE

Simultaneous Synthesis of Sum-and-Difference Patterns for Planar Arrays With Common Weights and Minimum Dynamic Range Ratio via Sequential Convex Optimization Method

Abstract: Simultaneous synthesis of array sum-and-difference patterns (SDPs) with reduced dynamic range ratio (DRR) of element excitation weights is of great importance. In this communication, a novel ...
IEEE

A Four-Port Shared-Aperture In-Band Full-Duplex Antenna Array Based on a Novel Common-Mode and Differential-Mode Combination Method

Abstract: In this communication, a four-port shared-aperture in-band full-duplex (IBFD) antenna system is developed based on a novel common-mode (CM)/differential-mode (DM) combination method. By ...