Year: 2025
Type: article
Abstract: This study presents a W-band antenna integration module using High-Density Interconnect (HDI) technology for radar applications. The module integrates 64 transmit/receive (TRX) channels, each with a 2×2 sub-array, forming a 16×16 antenna array. To address warpage and manufacturing constraints caused by asymmetric copper coverage in HDI substrates, we introduce non-resonant patches and cavity structures, enhancing copper uniformity and gain performance. Broadband impedance matching techniques mitigate vertical impedance discontinuities. A single TRX channel demonstrates a 23.35% impedance bandwidth (87-110 GHz) and a peak gain of 13.74 dBi. The full module’s simulated peak gain reaches 26.83 dBi at 97 GHz, confirming the viability of HDI technology for W-band antenna integration.
Source: IEICE Electronics Express
Language: English
Topic: Antenna Design and Analysis
Subfield: Aerospace Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
Funder: Chinese Academy of Sciences
Award: G7954647803
OpenAlex ID: W4408805209