Millimeter-wave phased-array transceiver achieves highly efficient communication across the entire 57–71 GHz band

To realize the ultra-high-speed, large-capacity wireless communication required in the Beyond 5G/6G era, we have developed a broadband phased-array antenna and transceiver IC that supports the entire 5G millimeter-wave band (5G NR FR2-2 n263 band: 57–71 GHz).

This achievement was presented at the 2026 IEEE/JSAP Symposium on VLSI Technology & Circuits, held in Honolulu, USA, from June 14 to 18.

Key points

• Developed an antenna and transceiver IC that achieves highly efficient, stable communication across the entire 57–71 GHz 5G millimeter-wave band
• An “aperture-tuning antenna” — which optimizes the antenna’s effective radiation aperture at each frequency by adjusting the internal current distribution — is integrated with the transmit/receive circuitry, enabling both wideband operation and a compact, low-loss design
• Expected to contribute to ultra-high-speed, large-capacity communication infrastructure for the Beyond 5G/6G era, as well as next-generation services such as high-definition XR

Publication

Minghao Fan, Yilun Chen, Zheng Li, Ziyuan Ren, Minzhe Tang, Junqing Liu, Yuxuan Liu, Dongfan Xu, ZeZheng Liu, Yudai Yamazaki, Sena Kato, Yuncheng Zhang, Kazuaki Kunihiro, Hiroyuki Sakai, and Kenichi Okada, “A 57-71-GHz CMOS Phased-Array Transceiver with Aperture-Tuning Antenna Achieving 47.9-62.2% EIRP Efficiency Improvement,” IEEE Symposium on VLSI Technology and Circuits (VLSI Circuits), Honolulu, HI, June 2026.