A double -frequency circuit structure for implementing vital sign detection and short-distance positioning

• Main Authors: YANG Zikai, ZHOU Shaohua, MA Jianguo
• Format: Patent
• Language: English
• Published: 28.06.2019
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; MEDICAL OR VETERINARY SCIENCE; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; SURGERY; TESTING

The present invention discloses a double-frequency circuit structure for implementing vital sign detection and short-distance positioning, wherein a transmitting antenna (1) is connected in series with a power amplifier (2) and a first power divider (3), the first power divider (3) is connected with...