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Nonlinear antenna technology

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TLDR
A theoretical framework describing beam shaping and beam forming by exploiting the phase, amplitude, and coupling dynamics of nonlinear oscillator arrays is presented and experimental demonstration of non linear beam steering is realized using analog microelectronics.
Abstract
Nonlinear antennas combine advances in nonlinear dynamics, active antenna design, and analog microelectronics to generate beam steering and beam forming across an array of nonlinear oscillators. Nonlinear antennas exploit two phenomena typically shunned in traditional designs: nonlinear unit cells and interelement coupling. The design stems from nonlinear coupled differential equation analysis that by virtue of the dynamic control is far less complex than the linear counterparts by eliminating the need for phase shifters and beam forming computers. These advantages arise from incorporating nonlinear dynamics rather than limiting the system to linear quasisteady state operation. A theoretical framework describing beam shaping and beam forming by exploiting the phase, amplitude, and coupling dynamics of nonlinear oscillator arrays is presented. Experimental demonstration of nonlinear beam steering is realized using analog microelectronics.

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The Kuramoto model: A simple paradigm for synchronization phenomena

TL;DR: In this paper, a review of the Kuramoto model of coupled phase oscillators is presented, with a rigorous mathematical treatment, specific numerical methods, and many variations and extensions of the original model that have appeared in the last few years.
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Review of substrate-integrated waveguide circuits and antennas

TL;DR: In this article, the authors provide an overview of the recent advances in the modelling, design and technological implementation of SIW structures and components, as well as their application in the development of circuits and components operating in the microwave and millimetre wave region.
Journal ArticleDOI

Beam steering of nonlinear oscillator arrays through manipulation of coupling phases

TL;DR: In this article, three phase-shiftedless beam steering techniques are described, where the control parameters are the coupling phases of the local interactions between elements, and linear stability analyzes for each technique are provided.
Journal ArticleDOI

New Techniques for the Analysis and Design of Coupled-Oscillator Systems

TL;DR: In this paper, an in-depth analysis of the nonlinear dynamics of coupled-oscillator arrays is presented for a better understanding of their complex autonomous behavior, and a semianalytical approach for an efficient design of the oscillator array, avoiding the computational expensiveness of harmonic balance (HB) in systems with a high number of oscillator elements.
Journal ArticleDOI

Simultaneous beam steering and null formation with coupled, nonlinear oscillator arrays

TL;DR: In this article, the ability of coupled, nonlinear oscillator arrays to produce simultaneous beam steering and null generation is presented, which extends the capabilities of such arrays to include interference suppression, is realized through a generalization of Steyskal's method of pattern nulling by phase perturbation.
References
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Book

Antenna Theory: Analysis and Design

TL;DR: The most up-to-date resource available on antenna theory and design as mentioned in this paper provides an extended coverage of ABET design procedures and equations making meeting ABET requirements easy and preparing readers for authentic situations in industry.
Journal ArticleDOI

Exploring complex networks

TL;DR: This work aims to understand how an enormous network of interacting dynamical systems — be they neurons, power stations or lasers — will behave collectively, given their individual dynamics and coupling architecture.
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Analog VLSI and Neural Systems

TL;DR: This chapter discusses a simple circuit that can generate a sinusoidal response and calls this circuit the second-order section, which can be used to generate any response that can be represented by two poles in the complex plane, where the two poles have both real and imaginary parts.
Journal ArticleDOI

The nature of the coupling between segmental oscillators of the lamprey spinal generator for locomotion: a mathematical model.

TL;DR: A theoretical model is presented which is used to explain the intersegmental coordination of the neural networks responsible for generating locomotion in the isolated spinal cord of lamprey and is able to generate stable phase locked motions which correspond to traveling waves in the spinal cord, thus simulating “fictive swimming”.
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