2015 IEEE MTT-S INTERNATIONAL MICROWAVE WORKSHOP SERIES ON RF AND WIRELESS TECHNOLOGIES FOR BIOMEDICAL AND HEALTHCARE APPLICATIONS (IMWS-BIO) 201-202 2015年 [査読有り]
This paper presents the simulated and measured results for a miniaturized broadband rat-race hybrid for UHF biomedical and healthcare applications and TV white space systems. The hybrid was implemented on an FR4 substrate using spiral inductors an...
Shun Sato   Hitoshi Hayashi   Shin Hayakawa   
2015 IEEE MTT-S INTERNATIONAL MICROWAVE WORKSHOP SERIES ON RF AND WIRELESS TECHNOLOGIES FOR BIOMEDICAL AND HEALTHCARE APPLICATIONS (IMWS-BIO) 203-204 2015年 [査読有り]
We present a high-speed start-up and low-power decoding circuit for body-centric communications. The Manchester code that is currently used for Ethernet (10BASE-T), noncontact IC cards, and RFID systems, requires a phase-locked loop because interv...
We investigated the following three important issues after the Great East Japan Earthquake: (1) the logistics of relief supplies to the disaster area, (2) the recovery process of transportation, and (3) the corporate structure of the insurance com...
2014 UKSIM-AMSS 16TH INTERNATIONAL CONFERENCE ON COMPUTER MODELLING AND SIMULATION (UKSIM) 485-488 2014年 [査読有り]
This paper proposes the optimization of power-efficient wireless mesh networks in outdoor environment, particularly for gas metering in Japan. We investigate the effect on the total power consumption by changing the output power and allocated freq...
2014 UKSIM-AMSS 16TH INTERNATIONAL CONFERENCE ON COMPUTER MODELLING AND SIMULATION (UKSIM) 568-570 2014年 [査読有り]
We propose a novel encoding method for non-contact IC card or RFID systems. The Manchester code that is currently used for non-contact IC card or RFID systems requires a phase-locked loop (PLL) because intervals of the state transition change. In ...