Title :
5.8-GHz Integrated Differential Rectenna Unit Using Both-Sided MIC Technology With Design Flexibility
Author :
Ushijima, Yu. ; Sakamoto, Takanori ; Nishiyama, Eisuke ; Aikawa, Masayoshi ; Toyoda, Ichihiko
Author_Institution :
Grad. Sch. of Sci. & Eng., Saga Univ., Saga, Japan
fDate :
6/1/2013 12:00:00 AM
Abstract :
A 5.8-GHz integrated differential rectifying antenna (rectenna) unit with design flexibility is proposed, and its performance is confirmed experimentally. It positively uses both-sided microwave integrated circuit (MIC) technology, and its antenna feed circuit includes filters which suppress 2nd harmonic. This proposed rectenna unit is a very simple, compact and novel configuration. It operates in a differential mode, and effectively integrates an antenna array with a rectifying circuit. Its configuration provides the pragmatically advantages such as antenna array design flexibility and rectenna unit extensibility. Herein, the behavior of the rectenna unit was successfully confirmed under low radio frequency (RF) power density. Maximum RF-DC conversion efficiency at 5.8 GHz of Industry-Science-Medical (ISM) band was approximately 27% with the load resistance of 390 Ω when the received power density (PD) was 0.031 W/m2.
Keywords :
antenna feeds; harmonics suppression; microstrip antenna arrays; microwave antenna arrays; microwave integrated circuits; rectennas; rectifying circuits; 2nd harmonic suppression; ISM band; Maximum RF-DC conversion efficiency; antenna array; antenna feed circuit; both-sided MIC technology; both-sided microwave integrated circuit technology; design flexibility; differential mode; frequency 5.8 GHz; industry-science-medical band; integrated differential rectenna unit; integrated differential rectifying antenna unit; load resistance; low RF power density; low radio frequency power density; received PD; received power density; resistance 390 ohm; Antenna measurements; Arrays; Density measurement; Microwave integrated circuits; Power system measurements; Radio frequency; Rectennas; Antenna array design flexibility; both-sided MIC technology; microstrip antenna; rectenna extensibility; rectifying antenna; rectifying circuit;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2013.2247554
