60GHz-Band Leaky-Wave Antenna for Remote Health Monitoring

摘要

A high gain (22.6 dBi) wide-band (5 GHz) leaky-wave antenna (LWA) with beam scanning capabilities is presented for remote vital sign monitoring with Doppler radar technique at 60 GHz-Band (57-65 GHz) frequencies. A compact feeding structure is deployed to excite the antenna. The antenna input impedance matching is significantly improved by employing higher order resonant cavity height. A beam scanning range of about 12° is accomplished across the frequencies from 62-65 GHz. Since, a narrow frequency band is required for Doppler radar in vital sign monitoring, the antenna beam scanning is achieved by tuning the operating frequency across the mentioned band.