Title :
A 60-GHz rectenna for monolithic wireless sensor tags
Author :
Hao Gao ; Johannsen, U. ; Matters-Kammerer, Marion K. ; Milosevic, D. ; Smolders, A.B. ; van Roermund, Arthur ; Baltus, P.
Author_Institution :
Dept. of Electr. Eng., Eindhoven Univ. of Technol., Eindhoven, Netherlands
Abstract :
This paper presents the design of a 60-GHz rectenna with an on-chip antenna and rectifier in 65nm CMOS technology. The rectenna is often the bottleneck in realizing a fully-integrated monolithic wireless sensor tag. In this paper, problems of the mm-wave rectifier are discussed, and the self-threshold voltage modulation method is proposed for better sensitivity and efficiency. Based on this discussion, the design of a 60 GHz rectenna is provided. The designed on-chip antenna has 2 dBi gain at 60 GHz. The designed rectifier reaches 4.4% efficiency with 7 dBm input power with a 1.5 kΩ load in simulation.
Keywords :
CMOS integrated circuits; monolithic integrated circuits; rectennas; system-on-chip; CMOS technology; frequency 60 GHz; gain 2 dB; monolithic wireless sensor tags; on-chip antenna and rectifier; rectenna; size 65 nm; voltage modulation method; Rectennas; Rectifiers; Schottky diodes; Substrates; System-on-chip; Wireless sensor networks; 60-GHz; energy harvesting; rectenna; rectifier;
Conference_Titel :
Circuits and Systems (ISCAS), 2013 IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-5760-9
DOI :
10.1109/ISCAS.2013.6572459
