Title :
Low-profile capacitive fed air-supported microstrip antenna at UHF band for biomedical application
Author :
Hao Wang ; Jing Zhou ; Yong Huang ; Jie Wang
Author_Institution :
Millimeter Wave Tech. Lab., Nanjing Univ. of Sci. & Technol., Nanjing, China
Abstract :
A compact L-shaped strip fed air-supported microstrip antenna with a simple structure is proposed at UHF band. This linear polarized microstrip antenna (LPMA) is miniaturized by bending both opposite sides of the antenna. To achieve the low profile, the L-shaped feeder, compensating the reactive of the antenna, has been designed. The dimensions of the proposed antenna are 200 mm×200 mm×15 mm (0.27λ0× 0.27λ0 ×0.026λ0) at the center frequency 417 MHz). The antenna has been successfully simulated, fabricated and measured. Experimental results show that the proposed antenna exhibits a good impedance bandwidth of 7 MHz (414 MHz-421 MHz) for VSWR <; 2. The simulation and measured results show a good agreement with each other.
Keywords :
biomedical communication; microstrip antennas; bandwidth 7 MHz; biomedical application; capacitive microstrip antenna; fed air supported microstrip antenna; frequency 414 MHz to 421 MHz; impedance bandwidth; linear polarized microstrip antenna; Antenna measurements; Antenna radiation patterns; Bandwidth; Microstrip; Microstrip antennas; Microwave antennas; Air-supported microstrip antenna; capacitive fed; linear polarized; low profile;
Conference_Titel :
Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO), 2013 IEEE MTT-S International
Conference_Location :
Singapore
DOI :
10.1109/IMWS-BIO.2013.6756217