In this paper, we discuss antennas and propagation aspects in current passive UHF RFID
systems. We consider a" reader-tag-reader" link and concentrate on each part of it: reader …

In this review, biomedical-related wireless miniature devices such as implantable medical
devices, neural prostheses, embedded neural systems, and body area network systems are …

The highly power-efficient backscattering communication scheme holds solid potentials to
lead the Internet of Things technologies. However, the asymmetric radio frontend …

The conventional short-range interferometric radar sensors usually employ two separate
transmitting (TX) and receiving (RX) antennas for improved TX–RX isolation. However, they …

A wideband, multimode, and monostatic simultaneous transmit and receive (STAR) antenna
subsystem is proposed. The configuration is composed of a single four-arm spiral and two …

An accurate design method is proposed for directivity enhancement of microstrip directional
couplers loaded with shunt inductors. The parasitic effects of junction discontinuities in …

A full-duplex handheld antenna system for ad hoc communications based on a circular array
of four half-wavelength dipole antennas is discussed. The dipoles are fed in two orthogonal …

In this paper, a novel carrier leakage suppression (CLS) front-end for UHF RF identification
(RFID) reader is presented. We demonstrated through experiment in the laboratory …

This paper presents a long-range RF identification (RFID) reader that has proven to work at
up to 5 m with 2-W effective radiated power transmit power at 868 MHz. For the validation, a …

An intermodulation RF-powered-tag uplink (UL) that exploits the rectifier third-order
intermodulation (IM3) has been recently proposed. The key features for the IM3 ULs to …