A fully integrated 60GHz CMOS transceiver chipset based on WiGig/IEEE802.11ad with built-in self calibration for mobile applications

摘要

A 60GHz short-range wireless system offers new opportunities for achieving wireless high-definition video links and multi-Gb/s wireless data transfer. Recent works have realized a 60GHz transceiver by means of a cost-effective CMOS process [1–3], but using a 60GHz system in mobile terminals poses the difficult challenge of achieving low power consumption as well as small form factor. The publication [3] achieves a power consumption of less than 756mW, but uses a simple MAC protocol incompatible with global standards and also suffers from a limited distance of less than 4cm. This paper presents a fully integrated transceiver chipset based on WiGig/IEEE802.11ad standards targeting mobile usage. The chipset is developed for a single-carrier (SC) modulation, which is suitable for reduced power consumption as compared to using OFDM modulation. However, the SC modulation is sensitive to in-band amplitude variation, mainly made worse by the gain variation of analog circuits and multipath delay spread. In order to compensate for those gain variations, the proposed chipset employs built-in TX in-band calibration and an RX frequency domain equalizer (FDE). The proposed techniques can relax the requirement for high speed analog circuits, leading to less power consumption while minimizing the increase of hardware size.