This paper presents the design of a 5.2 GHz on-chip inductor employing a standard 13.5 Ω-cm bulk silicon substrate in a 0.13μm CMOS process. This inductor is optimized to radiate efficiently and therefore serves as an on-chip antenna as well. Two different geometries are compared in terms of their inductive and radiation characteristics and their various tradeoffs are discussed. The optimized on-chip inductor/ antenna has a Q of 9.2, L of 2.0 nH and an omni-directional radiation pattern with a gain of -22 dB on a lossy silicon substrate. This paper also illustrates a transmission link utilizing an injection locked oscillator and on-chip inductors/antennas which can communicate successfully up to 25 cm. The antenna demonstrates strong potential for integration into VLSI technology to implement single-chip wireless systems for low cost, low power and short range communication applications.
2006 IEEE International Workshop on Antenna Technology, IWAT 2006
Department of Electronics

Shamim, A., Popplewell, P., Karam, V., Roy, L, Rogers, J, & Plett, C. (2006). 5.2 GHz on-chip antenna/ inductor for short range wireless communication applications. In 2006 IEEE International Workshop on Antenna Technology, IWAT 2006 - Small Antennas and Novel Metamaterials (pp. 213–216). doi:10.1109/IWAT.2006.1609013