Broadband Transponder Based on Frequency-Reconfigurable Cluster Antenna and Phased Modulators
Journal article, 2020

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. © 2002-2011 IEEE.

impedance matching

Internet of Things (IoT)

scattering matrices

wireless sensor networks (WSNs)



mutual coupling


Tauseef Siddiqui

Aalto University

Prabhat Khanal

Chalmers, Electrical Engineering, Communication and Antenna Systems, Antennas

Jari Holopainen

Aalto University

Ville Viikari

Aalto University

IEEE Antennas and Wireless Propagation Letters

1536-1225 (ISSN)

Vol. 19 2 238-242 8939435

Subject Categories


Signal Processing

Other Electrical Engineering, Electronic Engineering, Information Engineering



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Latest update

4/1/2020 1