IEEE Access (Jan 2018)

A Dielectric Resonator Antenna-in-Package Design and its Electromagnetic Interference Investigation on Amplifier

  • Sheng-Jie Guo,
  • Kwok Wa Leung,
  • Jun-Fa Mao,
  • Nan Yang

DOI
https://doi.org/10.1109/ACCESS.2018.2872495
Journal volume & issue
Vol. 6
pp. 54994 – 55003

Abstract

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A highly shielded and easy-integration antenna-in-package (AiP) configuration based on the rectangular hollow dielectric resonator antenna (DRA) is presented. The surfaces of the hollow are made conductive to form a metal cavity, isolating the DRA from the RF circuits. Both passive and active antennas for 2.4-GHz WLAN applications are designed, measured, and compared. The two antennas are excited in the TEδ11x mode and perform similarly. To know the effect of the perfect-electric-conductor (PEC) boundary, the DRA without any metal cavities is also studied for comparison. Two sets of experiments are designed to investigate the electromagnetic interference between the AiP and a low-noise amplifier (LNA) inside the hollow. The influences of the DRA on the packaged LNA are measured and analyzed for both the no-PEC-boundary and PEC-boundary cases. It is found that the output of the LNA will be significantly affected by the DRA input power when the latter is sufficiently high.

Keywords