Title :
Design of frequency-detecting device based on rectenna
Author :
Jia-Fu Tsai ; Jeen-Sheen Row
Author_Institution :
Dept. of Electr. Eng., Nat. Changhua Univ. of Educ., Chang-Hua, Taiwan
Abstract :
A frequency-detecting device based on a rectenna is presented. The rectenna is mainly composed of a frequency reconfigurable microstrip antenna, a rectifying circuit, and a low pass filter. The operating frequency of the antenna can be tuned in the range between 2 and 2.8 GHz, and, in this frequency range, the rectifier can effectively perform the conversion from RF to DC. From the measured results of the broadband rectenna, the average conversion efficiency and output DC voltage are 67 % and 4 V, respectively. A frequency-detecting device is implemented by integrating the rectenna with a preprogrammable microprocessor, and its frequency resolution is about 20 MHz.
Keywords :
UHF antennas; broadband antennas; low-pass filters; microstrip antennas; rectennas; broadband rectenna; frequency 2 GHz to 2.8 GHz; frequency reconfigurable microstrip antenna; frequency resolution; frequency-detecting device design; low pass filter; preprogrammable microprocessor; rectifying circuit; voltage 4 V; Impedance; Radio frequency; Rectennas; Rectifiers; Silicon; Varactors; Wireless communication; frequency detection; reconfigurable antenna; rectenna;
Conference_Titel :
Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2013
Conference_Location :
Chengdu
DOI :
10.1109/CSQRWC.2013.6657445
