Ground Stitching and Copper Balancing for High Performance SI Evaluation Kits

High-performance I/O interfaces offer small design margin for physical channel impairments such as routing impedance discontinuities and crosstalk. Mitigation techniques commonly deployed in single-purpose test/evaluation boards include thieving pads (copper balance and etch control) and stitching vias (crosstalk reduction and optimal return path). For critical high-speed nets, best practices combine these as “stitched thieving” in […]

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Reveal the True Performance of Your Wi-Fi 6E Modules

Wi-Fi 6 chipsets and devices harness the latest wireless standard with improved capabilities and performance. Enabling metrics such as faster data throughput and greater network efficiency may be favorable for consumers, but it places considerable demands on Wi-Fi module characterization and compliance testing. When faced with test equipment that is not up for the task, […]

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5G Communications for IoT

There are challenges to implementing 5G in the standard mobile form-factor. Space is already limited and 5G comprises two major frequency bands requiring different antenna technologies. The higher band, mm-wave, requires special attention to achieve good overall coverage and pass certifications. Beam forming techniques, material selection and additional antenna modules need careful evaluation. In this […]

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Technical Considerations for Testing 5G Base Station Finals for Digital Pre-distortion (DPD) Characterization

The increased bandwidth and peak to average ratios of the 5G physical layer has amplified the need for accurate DPD characterization. Wide band DPD systems are in extensive development. Final amplifier stage gain can be as low as 10 dB. To accurately characterize its distortion, high power linear RF drive is required. This signal should […]

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