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PCB Design

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  3. ANSYS HFSS: Mitigating RF Desense — Part 6

ANSYS HFSS: Mitigating RF Desense — Part 6

Tagged: aggressors, antenna coupling, coupling, electromagnetic interference (EMI), electronics, EMIT, hfss, insertion loss report, pcb, radiated emissions, radio, radio-frequency interference, receivers, return loss report, RF Coexistence, RF Desense, RFI, smartphone, WiFi receiver
    • July 4, 2022 at 7:00 am
      Watch & LearnWatch & Learn
      Participant

      In this video, the simulation of the modified design in HFSS 3D Layout reveals improved results. Insertion Loss and Return Loss reports are generated for the modified design. When compared to the initial design, it’s found that the coupling between the offending signal and antenna is reduced significantly in the modified board. The return loss report predicts good results so despite making changes to the geometry, the PCB’s intended functionality and operation remain largely unaffected. The second mitigation scheme of settling on the slower data rate over the fast data rate is also shown.

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