This paper discusses the use of a nonlinear sensing technology based on radio frequency
(RF) intermodulation response to track both the vital signs and location of human subjects …

This paper discusses the design and test of an intermodulation radar receiver and a
nonlinear tag operating in the 5.8-GHz industrial, scientific, and medical (ISM) band. To …

This paper introduces a new maritime search and rescue system based on S-band
illumination harmonic radar (HR). Passive and active tags have been developed and tested …

This brief reports on the electromagnetic (EM) design and the practical development of
frequency-reconfigurable quasi-reflectionless bandpass filters (BPFs) using substrate …

Much literature relevant to nonlinear junction detection and harmonic radar discusses
tracking of nonlinear tags. Those tags are designed to generate particular response …

Nonlinear radar has a unique advantage in finding nonlinear targets, like radio frequency
(RF) electronics and harmonic tags, under clutter circumstances, among which …

This paper reports on the RF design of highly-selective substrate-integrated (SI) bandpass
filters (BPFs) with two-port symmetrical quasi-absorptive characteristics. The proposed filter …

Nonlinear radar has attracted considerable attention in recent years due to its unique
advantage in detecting nonlinear targets, such as radio frequency (RF) electronics, under …

This paper presents a new SIMO radar system based on a harmonic radar (HR) stepped
frequency continuous wave (SFCW) architecture. Simple tags that can be electronically …

This thesis will detail the application simulation of techniques to model superconductivity for
microwave waveguide and planar transmission lines. The overarching aim is to streamline …