Abstract
This article describes the design and implementation of a low-profile sinuous slot antenna, intended for ultra-wideband (UWB) sensor networks, which can be produced on one conductive layer. The article explains the design and optimization of the sinuous slot antenna and its modifications, including its sinusoidal curve shape. Other modifications were aimed at optimizing the antenna feeding. Desirable properties of the designed and implemented antenna modifications were verified both by simulation and empirically. Experimental measurements of the antenna’s properties were carried out using a vector network analyzer in an anechoic chamber and also by a pulsed UWB radar in the frequency range from 0.1 to 6 GHz. The low-profile antennas were implemented on a Rogers RO3206 substrate.
Highlights
At present, ultra-wideband (UWB) radar systems appear to be an appropriate tool in many applications [1,2]
By combiningthe thecoplanar coplanar waveguide sinuous slot antenna, new structure was as an analytical curve
Choosing the parameters which defined the shape involved a wide set of tools formed as an analytical curve
Summary
Ultra-wideband (UWB) radar systems appear to be an appropriate tool in many applications [1,2]. They are capable of non-invasive motion detection, while their broadband properties provide them with sufficient precision for their application as contactless heart sensing or breathing sensors [3]. The IEEE 802.15.4a standard defines UWB-based sensor networks as having a high degree of flexibility, including their modulation, coding, and multiple access schemes. Antennas and their properties are the key elements in the field of sensors [8]. Examples of such applications are wearable devices [9] or energy harvesting [10,11]
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