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Design software helps speed RF system, IC, module and board development

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PathWave System Design 2022 and PathWave Advanced Design System (ADS) 2022 software speeds design development, as well as enhances performance and accuracy, through an integrated workflow that accelerates delivery of radio frequency (RF) systems, chips, modules and boards. Demand for wireless data and increasingly congested wireless spectrum requires RF design teams to work in a […]

Test system validates 400GE networks and devices

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The new AresONE-S 400GE test system enables network equipment manufacturers and data center operators to validate complex, mixed 400 gigabit Ethernet (GE) and lower-speed networks and devices. Data center operators have widely deployed mature 100GE non-return-to-zero (NRZ)-based technologies. However, higher Ethernet speeds, such as 400GE, create new mixed signaling and forward error correction (FEC) implementations […]

Reference design based on 4-kW high-efficiency single-phase ac-dc evaluation board

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A new power supply reference design enables engineers to identify and correct design errors before building hardware, thereby lowering product costs and speeding time to market. Switched-mode power supplies provide greater efficiency, increased power density and lower overall system costs when using GaN devices. However, GaN, a high switching speed, high performance wide bandgap semiconductor, […]

Basics of QAM reception and its measurement

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A conventional AM broadcast generally begins in the studio as a music or voice audio signal. The audio signal modulates the amplitude of a radio-frequency electrical signal. This AM signal–also referred to as double-sideband amplitude modulation to distinguish it from single-sideband modulation–produces equal frequency sidebands on either side of the center frequency. In single-sideband modulation […]

The back and forth of interferometer technology

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Conceptually, the interferometer is a relatively simple instrument that compares two distances typically differing only by a slight amount. Two waves, often coherent light waves, reflect from standard mirrors mounted at the object under investigation. The light from one mirror passes through a half-silvered mirror while the light from the other reflects from the back […]

The complexity of wireless receiver testing

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Eric Hsu | Keysight Technologies, Inc. The demand for wireless communications now challenges the physical limitations of today’s wireless communications systems. Interference can easily arise when systems operate in a crowded wireless environment using a shared spectrum. Signal congestion makes the process of designing, testing, and isolating system problems more complex. In the next few […]