Title :
Design and implementation of a printed yagi antenna working at the frequency of 2.4GHz for monitoring physiological parameters
Author :
Jinye Zhao ; Li Zheng ; Lu Zhao ; Yingwei Fan ; Yuanzhu Dou ; Lisheng Xu
Author_Institution :
Sino-Dutch Biomed. & Inf. Eng. Sch., Northeastern Univ., Shenyang, China
Abstract :
In this article, a design of non-contact sensor which is based on PCB (Printed Circuit Board) antenna for monitoring physiological parameters is proposed. In order to remotely monitor the activities of heartbeat, respiration and body movement, this article designed and implemented a Yagi patch antenna whose working central frequency is 2.45 GHz. The gain of the original antenna is 8.1 dB. Considering of low cost, simple structure and the ease of fabrication, the antenna is designed to be integrated into a circuit on a PCB to form a single antenna system. In order to guarantee high performance, the circuit was optimized by recalculating the length of each element, enlarging the size of ground and so on during the integration. Both the simulation and the experimental measurements validate that the designed antenna has a gain of 7.7 dB.
Keywords :
Yagi antenna arrays; bioelectric potentials; biomechanics; biomedical telemetry; microstrip antennas; patient monitoring; pneumodynamics; printed circuits; sensors; telemedicine; body movement activities; frequency 2.4 GHz; frequency 2.45 GHz; gain 8.1 dB; heartbeat activities; noncontact sensor design; physiological parameter monitoring; printed Yagi patch antenna; printed circuit board antenna; respiration activities; Antenna radiation patterns; Biomedical monitoring; Doppler radar; Gain; Medical services; Monitoring; Non-contact sensor; PCB antenna integration; Yagi antenna; monitoring physiological parameters;
Conference_Titel :
Intelligent Control and Automation (WCICA), 2014 11th World Congress on
DOI :
10.1109/WCICA.2014.7052771
