TY - JOUR
T1 - Electrically Small Huygens Antenna-Based Fully-Integrated Wireless Power Transfer and Communication System
AU - Lin, Wei
AU - Ziolkowski, Richard W.
N1 - Funding Information:
This work was supported in part by the Australian Research Council under Grant DP160102219, and in part by the UTS Chancellor’s Postdoctoral Fellowship under Grant PRO18-6147.
Publisher Copyright:
© 2013 IEEE.
PY - 2019/3
Y1 - 2019/3
N2 - This paper introduces the first reported electrically small Huygens dual-functional wireless power transfer (WPT) and communication system operating in the 915-MHz ISM band. It is realized by the seamless combination of a Huygens linearly polarized (HLP) antenna and a highly efficient HLP rectenna. The configuration consists of two orthogonally oriented HLP subsystems. Each one intrinsically combines two pairs of metamaterial-inspired near-field resonant parasitic elements, i.e., an Egyptian axe dipole (EAD) and a capacitively loaded loop (CLL). Through the development of a very tightly coupled feed subsystem that includes the WPT mode's rectifier circuit and the communications mode's feedline while preserving their isolation, the independent operation of both functions is facilitated in an electrically small volume ( ka < 0.77 ). The measured results of its fabricated prototype agree well with their simulated values. The communications mode antenna resonates at 910 MHz and radiates a cardioid-shaped Huygens pattern with the peak gain of 2.7 dBi. The Huygens-based WPT rectenna achieves an 87.2% peak ac-to-dc conversion efficiency at 907 MHz. The dual-functional system is an ideal candidate for many emerging Internet-of-Things (IoT) wireless applications that require simultaneous wireless information and power transfer (SWIPT) and wirelessly powered communications (WPC).
AB - This paper introduces the first reported electrically small Huygens dual-functional wireless power transfer (WPT) and communication system operating in the 915-MHz ISM band. It is realized by the seamless combination of a Huygens linearly polarized (HLP) antenna and a highly efficient HLP rectenna. The configuration consists of two orthogonally oriented HLP subsystems. Each one intrinsically combines two pairs of metamaterial-inspired near-field resonant parasitic elements, i.e., an Egyptian axe dipole (EAD) and a capacitively loaded loop (CLL). Through the development of a very tightly coupled feed subsystem that includes the WPT mode's rectifier circuit and the communications mode's feedline while preserving their isolation, the independent operation of both functions is facilitated in an electrically small volume ( ka < 0.77 ). The measured results of its fabricated prototype agree well with their simulated values. The communications mode antenna resonates at 910 MHz and radiates a cardioid-shaped Huygens pattern with the peak gain of 2.7 dBi. The Huygens-based WPT rectenna achieves an 87.2% peak ac-to-dc conversion efficiency at 907 MHz. The dual-functional system is an ideal candidate for many emerging Internet-of-Things (IoT) wireless applications that require simultaneous wireless information and power transfer (SWIPT) and wirelessly powered communications (WPC).
KW - Dual-functional
KW - electrically small antennas
KW - Huygens radiation pattern
KW - Internet-of-Things (IoT)
KW - rectenna
KW - wireless power transfer
UR - http://www.scopus.com/inward/record.url?scp=85065118276&partnerID=8YFLogxK
U2 - 10.1109/ACCESS.2019.2903545
DO - 10.1109/ACCESS.2019.2903545
M3 - Journal article
AN - SCOPUS:85065118276
SN - 2169-3536
VL - 7
SP - 39762
EP - 39769
JO - IEEE Access
JF - IEEE Access
M1 - 8662575
ER -