Pub Date : 2024-07-15DOI: 10.1109/TCPMT.2024.3428930
Xiao Yang;Xiao-Long Huang;Liang Zhou;Zi-Qi Zhang;Jun-Zhe Zhao;Jun-Fa Mao
In this study, we present the design, fabrication, and measurements of a 3-D heterogeneous integrated RF-module at W-band. A 3-D transition structure based on micro-bumps is fabricated and measured to obtain the transition loss of one bump. One micro-bump has an insertion loss of 0.21 dB at the W-band. A packaged filter and a benzocyclobutene (BCB)-based back cavity antenna are designed and analyzed in detail. The filter has a 2.6-dB insertion loss at 94 GHz with four transmission zeros (TZs) and a $2.14f_{0}~10$