Title :
3D printed wideband harmonic transceiver for embedded passive wireless monitoring
Author :
Nassar, I. ; Tsang, H. ; Weller, Tom
Author_Institution :
Univ. of South Florida, Tampa, FL, USA
Abstract :
A three-dimensional (3D) wideband passive harmonic transceiver for long-range embedded wireless monitoring is presented. The wideband performance is achieved by integrating two harmonic repeaters with adjacent centre frequencies. Each repeater consists of a frequency doubler and conjugate-matched receive and transmit meandered monopole antennas. The transceiver operates by receiving a signal at f1 between 2.35 and 2.85 GHz and re-radiating a signal at 2*f1 and is optimised for low-power operation. The node fits within a λ/8.3 (at 2.4 GHz) diameter sphere and weighs 2.5 g. The transceiver maximum expected efficiency is 5.6% at -18 dBm input power. The transceiver is fabricated via direct print additive manufacturing.
Keywords :
UHF antennas; broadband antennas; frequency multipliers; monopole antennas; radio repeaters; radio transceivers; receiving antennas; repeaters; transmitting antennas; wireless sensor networks; 3D printed wideband harmonic transceiver; conjugate-matched receiving antennas; conjugate-matched transmitting antennas; direct print additive manufacturing; embedded passive wireless monitoring; frequency 2.35 GHz to 2.85 GHz; frequency doubler; harmonic repeaters; long-range embedded wireless monitoring; monopole antennas; three-dimensional wideband passive harmonic transceiver; transceiver fabrication;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2014.0769
