Study on Extremely Compact Triple Band-Rejected Antenna in Indoor Propagation Channel for IR UWB and Biomedical Applications

IF 4.6 1区 计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Seyed Ramin Emadian;Shohreh Poustindouz
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Abstract

This communication investigates the frequency- and time-domain features of an extremely compact super-wideband slot antenna designed for impulse radio (IR) ultrawideband (UWB) and biomedical applications. The antenna employs a circular radiation patch and a rectangular slot in the ground plane, with optimized dimensions to achieve super-wide bandwidth. To address interference issues with co-existing narrowband systems, two inverse L-shaped stubs are connected to the ground plane, effectively rejecting the WiMAX spectrum. In addition, two circle-like ring slots are embedded into the radiation patch to create band-rejected features for WLAN and X-band downlink frequencies. Despite its compact size of $14\times 14$ mm ( $0.13\lambda _{\text {g}} \times 0.13\lambda _{\text {g}}$ ), the antenna offers a bandwidth extending from 2.8 to over 20 GHz, making it suitable for UWB (3.1–10.6 GHz) and Ku-band (12–18 GHz) applications. This communication also explores the antenna’s impact on transmitting and receiving ultranarrow pulses for IR biomedical applications, assessed using the system fidelity factor (SFF). A noteworthy contribution of this work is the investigation of the time-domain properties of the proposed antenna in a typical indoor propagation channel. The simulated and measured results demonstrate the antenna’s favorable characteristics in both the frequency and time domains.
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来源期刊
CiteScore
10.40
自引率
28.10%
发文量
968
审稿时长
4.7 months
期刊介绍: IEEE Transactions on Antennas and Propagation includes theoretical and experimental advances in antennas, including design and development, and in the propagation of electromagnetic waves, including scattering, diffraction, and interaction with continuous media; and applications pertaining to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques
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