45 citations · 139 across the 13 of their papers we have counts for
13 papers
Microwave Hilbert Transformer and its Applications in Real-time Analog Processing (RAP)
Xiaoyi Wang, Zoé-Lise Deck-Léger, Lianfeng Zou +2
A microwave Hilbert transformer is introduced as a new component for Real-time Analog Processing (RAP). In contrast to its optical counterpart, that resort to optical fiber grating…
Real-Time Spectrum Sniffer for Cognitive Radio Based on Rotman Lens Spectrum Decomposer
Xiaoyi Wang, Alireza Akbarzadeh, Lianfeng Zou +1
We introduce the concept of a Rotman-lens spectrum decomposer (RLSD) real-time spectrum-sniffer (RTSS) for cognitive radio. Compared to a previously existing RTSS, the RLSD-RTSS of…
Flexible-Resolution, Arbitrary-Input and Tunable Rotman Lens Spectrum Decomposer (RL-SD)
Xiaoyi Wang, Alireza Akbarzadeh, Lianfeng Zou +1
We present an enhanced design -- in terms of resolution flexibility, input port position arbitrariness and frequency-range tunability -- of the planar Rotman lens spectrum decompos…
Time-Reversal Routing for Dispersion Code Multiple Access (DCMA) Communications
Lianfeng Zou, Christophe Caloz
We present the modeling and characterization of a time-reversal routing dispersion code multiple access (TR-DCMA) system. We show that this system maintains the low complexity adva…
Ultra-high and Tunable Sensitivity Leaky-Wave Scanning Using Gain-Loss C-section Phasers
Nghia Nguyen-Trong, Lianfeng Zou, Christophe Fumeaux +1
A periodic leaky-wave antenna (LWA) with tuning capability and enhanced scanning sensitivity is introduced in this paper. This antenna leverages the concept of active Gain-Loss C-s…
Real-Time Dispersion Code Multiple Access (DCMA) for High-Speed Wireless Communications
Lianfeng Zou, Shulabh Gupta, Christophe Caloz
We model, demonstrate and characterize Dispersion Code Multiple Access (DCMA) and hence show the applicability of this purely analog and real-time multiple access scheme to high-sp…
A Simple Picosecond Pulse Generator Based on a Pair of Step Recovery Diodes
Lianfeng Zou, Shulabh Gupta, Christophe Caloz
A picosecond pulse generator based on a pair of step recovery diodes (SRD), leveraging the transient response of the SRD PN junction and controlling the pulse width by a resistor,…
Loss-Gain Equalized Reconfigurable Phaser for Dynamic Radio Analog Signal Processing (R-ASP)
Lianfeng Zou, Shulabh Gupta, Christophe Caloz
We present a loss-gain equalized reconfigurable phaser for dynamic radio analog signal processing (R-ASP). Such a phaser provides real-time tunable group delay response with all-pa…
Enhancement of Time Reversal Sub-wavelength Wireless Transmission Using Pulse Shaping Technique (submit/1139227)
Shuai Ding, Shulabh Gupta, Rui Zang +3
A novel time-reversal subwavelength transmission technique, based on pulse shaping circuits (PSCs), is proposed. This technique removes the need for complex or electrically large e…
Enhancement of Time-Reversal Subwavelength Wireless Transmission Using Pulse Shaping
Shuai Ding, Rui Zang, Lianfeng Zou +2
A novel time-reversal subwavelength transmission technique, based on pulse shaping circuits (PSCs), is proposed. Compared to previously reported approaches, this technique removes…
A High-Resolution Transmission-Type (TT) Phaser Based on Reflection-Type (RT) Units for Radio Analog Signal Processing (R-ASP)
Lianfeng Zou, Christophe Caloz
A high Radio Analog Signal Processing (R-ASP) resolution transmission-type (TT) phaser based on reflection-type (RT) phaser units is introduced, theoretically studied and experimen…
Planar Reflective Phaser and Synthesis for Radio Analog Signal Processing (R-ASP)
Lianfeng Zou, Qingfeng Zhang, Christophe Caloz
A planar reflective phaser based on an open-ended edge-coupled-line structure is proposed. This phaser is the first reported phaser that combines the benefits of high resolution, i…
Generalized Coupled-line All-Pass Phasers
Shulabh Gupta, Qingfeng Zhang, Lianfeng Zou +2
Generalized coupled-line all-pass phasers, based on transversally-cascaded (TC), longitudinally-cascaded (LC) and hybrid-cascaded (HC) coupled transmission line sections, are prese…