Kyu-Sub Kwak

23Gbps 9.4pJ/bit 80/100GHz band CMOS transceiver with on-board antenna for short-range communication

Fully integrated 80GHz-band and 100GHz-band transceiver ICs using 65nm CMOS technology and on-board antennas for high-speed/short-range wireless communication system are demonstrated. To realize higher speed and lower power consumption than those of a 60GHz-band standard application such as IEEE802.11ad, a simple transceiver architecture with non-coherent amplitude shift keying (ASK) modulation method using W-band (75-110GHz) is adopted. The aggregate 80/100GHz-band transceiver modules demonstrate 23Gbps over 10mm wirelessly with power consumption of 216mW. The developed transceiver modules achieve the highest speed of wireless communications above 60GHz-band and show a potential for future applications of 100Gbps high-speed short-range communications.

A low-power 71GHz-band CMOS transceiver module with on-board antenna for multi-Gbps wireless interconnect

Fully integrated millimeter-wave transceiver ICs using 65nm CMOS technology and on-board antenna for highspeed/short-range wireless communication system are described. To realize high-speed and low power consumption for a mobile application, a simple transceiver architecture with non-coherent amplitude shift keying (ASK) modulation method is adopted. The transceiver ICs are flip-chip bonded on boards and connected with on-board antenna for a simple and low cost transceiver system. The developed transceiver system module demonstrates 5Gbps/3.8Gbps at wireless communication range of 5mm/10mm and power consumption of 79.6mW with a carrier frequency of 71GHz. To our best knowledge, this is the first report of a millimeter-wave, above 60GHz, CMOS transceiver module with on-board antenna for a highspeed/short-range wireless communication system.

Development of a novel and cost-effective bi-directional optical triplexer based on polymer PLC platform

For fiber to the home applications (FTTH), a vertical cavity surface emitting laser (VCSEL) is a promising light source, because of easy fabrication and low cost. We have successively developed two novel VCSEL bidirectional (BiDi) triplexers with 200 Mbps data rates in small form factor pluggable (SFP) structures. The new optical sub-assembly structures are realized with satisfactory coupling efficiency and total passive alignment processes without any lens system. As a consequence, the VCSEL BiDi triplexers would be expected to be cost-effective optical transceivers for active optical network (AON) FTTH systems.