Broadband Transponder Based on Frequency-Reconfigurable Cluster Antenna and Phased Modulators

Tauseef Siddiqui; Prabhat  Khanal; Jari Holopainen; Ville Viikari

doi:10.1109/LAWP.2019.2958181

Broadband Transponder Based on Frequency-Reconfigurable Cluster Antenna and Phased Modulators

Tauseef Siddiqui, Prabhat Khanal, Jari Holopainen, Ville Viikari

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Abstract

This letter presents a new concept of broadband transponder based on frequency-reconfigurable cluster antenna and phase-variable modulators. The transponder in this concept has multiport antenna, whose elements have strong mutual coupling between them. The technique presented in this concept takes advantage of the coupling between the antenna elements instead of avoiding it. By properly weighting the phases of the modulated signals in each port, the backscattered received power can be maximized. The weighting is done differently for different sets of frequencies to achieve instantaneous bandwidth over the frequency band of interest.

Original language	English
Article number	8939435
Pages (from-to)	238 - 242
Number of pages	5
Journal	IEEE Antennas and Wireless Propagation Letters
Volume	19
Issue number	2
Early online date	23 Dec 2019
DOIs	https://doi.org/10.1109/LAWP.2019.2958181
Publication status	Published - Feb 2020
MoE publication type	A1 Journal article-refereed

Keywords

backscattering
impedance matching
Internet of Things (IoT)
mutual coupling
modulation
scattering matrices
wireless sensor networks (WSNs)

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title = "Broadband Transponder Based on Frequency-Reconfigurable Cluster Antenna and Phased Modulators",

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AU - Viikari, Ville

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AB - This letter presents a new concept of broadband transponder based on frequency-reconfigurable cluster antenna and phase-variable modulators. The transponder in this concept has multiport antenna, whose elements have strong mutual coupling between them. The technique presented in this concept takes advantage of the coupling between the antenna elements instead of avoiding it. By properly weighting the phases of the modulated signals in each port, the backscattered received power can be maximized. The weighting is done differently for different sets of frequencies to achieve instantaneous bandwidth over the frequency band of interest.

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KW - impedance matching

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KW - mutual coupling

KW - modulation

KW - scattering matrices

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JF - IEEE Antennas and Wireless Propagation Letters

SN - 1536-1225

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ER -

Broadband Transponder Based on Frequency-Reconfigurable Cluster Antenna and Phased Modulators

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