LONDON Ė Researchers the Institute of Microelectronics (IME) in Singapore have developed a silicon-based cavity-backed slot antenna that has demonstrated a 30 times stronger signal transmission over on-chip antennas at 135-GHz.
Measuring 1.6-mm by 1.2-mm, it is the smallest silicon-based CBS antenna reported to date for ready integration with active circuits, the developers claim. The antenna, in combination with other millimeter-wave building blocks, can support wireless speed of 20-Gbits per second, more than 200 times faster than present day Wi-Fi.
"The novel use of polymer filling enables more than 70 percent antenna size shrinkage and a record high gain of 5.68-dBi at 135-GHz," Hu Sanming, the researcher leading the antenna project at IME. "By filling the antenna cavity with polymer instead of air, we can achieve a flat surface for subsequent processing by standard technology that is amenable to mass production," he added.
Sanming added that the IME team has designed a three-dimensional technique to integrate the antenna with active circuits to form a fully integrated wireless millimeter-wave system-in-package that maintains high performance with low susceptibility to electromagnetic interference.
Related links and articles:
IMEC, Murata team on reconfigurable radio IC design
Virtual jobs fair offers engineers work in Singapore
Singapore plans fabless chip firm haven
UMC, Singapore's IME team on TSV process for image sensors