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3 paź 2023 · Ultra-Wideband (UWB) is a wireless technology with low power consumption that can transmit large amounts of data over short distances. We mention high accuracy for a reason: UWB measures the time needed for a signal to travel between the transmitter and receiver, enabling the possibility to calculate the distance in centimeters in real-time.
time domain, according to Formula BW×T ≥4/π, which expresses the connection between bandwidth (BW) and pulse duration (T). For traditional communication technologies such as WiFi, bandwidths are limited to e.g. 20 MHz, resulting in a pulse width larger than 4 nanoseconds. In contrast, UWB systems of 500 MHz have time pulses of only 0.16 ns ...
UWB is an IEEE 802.15.4a/z standard technology optimized for secure micro-location-based applications. It enables distance and location to be calculated indoors or outdoors with unprecedented accuracy – within a few centimeters – by measuring the time it takes radio signals to travel between devices. Along with centimeter-level
UWB communication is achieved by sending ultra-short, time-domain pulses in predefined bursts and sequences to achieve different functionalities. A single pulse can be less than 1ns long, which results in a very large bandwidth in the frequency domain.
23 paź 2024 · To understand the potential of UWB, it is important to consider the technology’s unique characteristics in terms of bandwidth, signal propagation, time of flight and angle of arrival measurement. Get a technical insight into how UWB works, standardization efforts and NXP’s unique UWB portfolio.
At a given total transmitted power, power is distributed over an extremely large bandwidth. In the time domain, the high resolvability due to ultra wide bandwidth can affect the receiver performance. Since the total power is distrib-uted over many multipath components, the power on each path might be very low [1].
In the first part of this chapter, we will demonstrate the time-domain calculation of the group delay and amplitude variation at the example of the coplanar UWB antenna presented in Chap. 2. The second part applies the same technique to the microstrip antenna presented in [9, 10].
