Category: Hardware Notes

2.45GHz to 2.85GHz VCO Design with Infineon BFP420 Wideband Silicon NPN RF Bipolar Transistor

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Introduction to Patch Antenna Array with a Parallel Feeding Network

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Infineon BGT24LTR11N16 24Ghz Radar MMIC Impedance Matching

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Effective Dielectric Constant

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Plastic Dielectric Constant Measurement using TDR and Copper Foil Tape

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Lumped LC Balun Design

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The Considerations of Antenna Design for IOT and Wearable Devices

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Non‐Isolated AC/DC Power Supply Design and Implementation based on Power Integrations LNK3205

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Time-Domain Reflectometer (TDR) Theory and Implementation

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Philips Sonicare Electric Toothbrush Measurements without Teardown

Part I: Sonicare Electric Toothbrush Architecture Figure 1: Sonicare Electric Toothbrush Architecture This electric toothbrush is a water-resistant design, thus it adopts wireless charging technology. Coil 2 is the wireless charging receiver. A permanent magnet is attached to the trail

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