TY - GEN
T1 - An X-Band Waveguide Jig for Pre-Screening Testing of Fully-Integrated Elementary Phased-Array Transceiver Antenna-in-Package
AU - Chang, Li Han
AU - Wang, Chien Cheng
AU - Wu, Yue Ming
AU - Chu, Ta Shun
AU - Wang, Yu-Jiu
PY - 2018/12/31
Y1 - 2018/12/31
N2 - A large 9-10 GHz tile-based scalable phased-array system (over 128 elements) is built by flip-chip bonding of elementary antenna-in-package (AiP) modules on a large interposer PCB. Each module has a top radiating surface and a bottom BGA bonding surface. Due to the strict spacing requirement of a phased-array system, rework of any failed modules from the interposer PCB is prone to create more damages to the system and is prohibited. It is necessary to have a reliable and Automatic Test Equipment (ATE)-compatible test procedures to pre-screen qualified elementary modules for bonding. However, conventional ATE-compatible test jig designs can neither receive radiation signals from antenna nor feed test signals into the antenna. In this paper, a waveguide jig for AiP pre-screening is proposed. This jig system consists of a WR-90 adapter, a horn antenna, a Torlon cap and socket with POGO pins, and a PCB to interface with ATE. To test AiP transmitter, controls and test signals are provided through PCB connectors, with radiation signals collected from the WR-90 adaptor. To test the AiP receiver, radiation signals are feeding through the WR-90 adaptor, and the receiver output signals are collected from the PCB connectors. To calibrate waveguide jig return loss, a set of AiP SOL modules are used to remove PCB and test fixture loss from the overall system loss. The waveguide jig achieves a flat simulated -2.4 dB from AiP antenna port to waveguide port from 8 to 12 GHz. This waveguide jig provides a fast and reliable approach to select qualified AiP for phased array system assemblies, and the final system-level over-the-air testing.
AB - A large 9-10 GHz tile-based scalable phased-array system (over 128 elements) is built by flip-chip bonding of elementary antenna-in-package (AiP) modules on a large interposer PCB. Each module has a top radiating surface and a bottom BGA bonding surface. Due to the strict spacing requirement of a phased-array system, rework of any failed modules from the interposer PCB is prone to create more damages to the system and is prohibited. It is necessary to have a reliable and Automatic Test Equipment (ATE)-compatible test procedures to pre-screen qualified elementary modules for bonding. However, conventional ATE-compatible test jig designs can neither receive radiation signals from antenna nor feed test signals into the antenna. In this paper, a waveguide jig for AiP pre-screening is proposed. This jig system consists of a WR-90 adapter, a horn antenna, a Torlon cap and socket with POGO pins, and a PCB to interface with ATE. To test AiP transmitter, controls and test signals are provided through PCB connectors, with radiation signals collected from the WR-90 adaptor. To test the AiP receiver, radiation signals are feeding through the WR-90 adaptor, and the receiver output signals are collected from the PCB connectors. To calibrate waveguide jig return loss, a set of AiP SOL modules are used to remove PCB and test fixture loss from the overall system loss. The waveguide jig achieves a flat simulated -2.4 dB from AiP antenna port to waveguide port from 8 to 12 GHz. This waveguide jig provides a fast and reliable approach to select qualified AiP for phased array system assemblies, and the final system-level over-the-air testing.
UR - http://www.scopus.com/inward/record.url?scp=85060924548&partnerID=8YFLogxK
U2 - 10.23919/PIERS.2018.8597854
DO - 10.23919/PIERS.2018.8597854
M3 - Conference contribution
AN - SCOPUS:85060924548
T3 - Progress in Electromagnetics Research Symposium
SP - 1248
EP - 1253
BT - 2018 Progress In Electromagnetics Research Symposium, PIERS-Toyama 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
Y2 - 1 August 2018 through 4 August 2018
ER -