helps to prevent car theft that attempts to eavesdrop on car key communication.
Real-time location tracking technology like UWB
and BLE beacons aren't likely to replace more traditional technologies like bar codes.
Unfortunately, as studies on guanxi practices, guanxi prevalence, and employees' UWB
are still rare, we could infer the possible relationships between them only through related literature.
In the literature, different shapes of UWB
antennas with reconfiguration of single filtered bands have been reported in -.
Based on the previous reasons, it is necessary to design UWB
MIMO antennas with high isolation between their elements.
In this paper, a compact UWB
antenna with triple notched bands is proposed.
In this case, the impulse response of end-to-end tropical outdoor channel will distort the pulse sent by UWB
The size of the antenna is chosen to be 19x11mm2 which is smaller than the existing UWB
This survey starts with a technical background of both UWB
and WSN systems, their design issues and key requirements and their mutual constraints.
MMR structure is originally used to constitute UWB
There are two definitions of UWB
system: the bandwidth of signal spectrum exceeds 25% of the center frequency or the -10 dB bandwidth of signal is over 500 MHz .