A Cost-Effective W-Band Antenna-in-Package Using IPD and PCB Technologies

Ching Wen Chiang, Chung Tse Michael Wu, Nai Chen Liu, Chia Jen Liang, Yen Cheng Kuan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

This article presents a cost-effective millimeter-wave (W-band) cavity-backed slot antenna-in-package (AiP) built using commercially available integrated passive device (IPD), printed circuit board (PCB), and flip-chip assembly technologies. An IPD-PCB resonant cavity is formed by flipping an IPD chip on a PCB substrate with surrounding solder bumps to provide radiation through a square slot, which is patterned on one of the IPD metal layers. Moreover, a substrate-integrated waveguide (SIW) cavity under the IPD-PCB cavity and a wideband-grounded coplanar waveguide (GCPW) are built in the PCB substrate for the transition between a radio frequency front-end (RFFE) and the IPD-PCB cavity. The fabricated AiP achieves a 3.75-dBi gain at 94.5 GHz (TE210 mode) and a 10-dB impedance bandwidth of 1.9 GHz with a 3.61 mm2 IPD chip area.

Original languageEnglish
Pages (from-to)822-827
Number of pages6
JournalIEEE Transactions on Components, Packaging and Manufacturing Technology
Volume12
Issue number5
DOIs
StatePublished - 1 May 2022

Keywords

  • Antenna-in-package (AiP)
  • W-band
  • bumps
  • cavity antenna
  • flip-chip
  • grounded coplanar waveguide (GCPW)
  • heterogeneous integration (HI)
  • integrated passive device (IPD)
  • millimeter-wave (mmWave)
  • printed circuit board (PCB)
  • substrate-integrated waveguide (SIW)

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