Inventi Impact - Microwave
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Journal Scope:
‘Inventi Rapid/Impact: Microwave’ focuses on the research and development aspects of radio frequency technology. Published quarterly in print and online, it aims to cater to the professionals and policy makers in the field, as well as the general public.
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DIFFERENTIAL MICROWAVE IMAGING FOR BRAIN STROKE FOLLOWUP
This paper deals with the possibility of adopting microwave imaging to continuously monitor a patient after the onset of a brain stroke, with the aim to follow the evolution of the disease, promptly counteract its uncontrolled growth, and possibly support decisions in the clinical treatment. In such a framework, the assessed techniques for brain stroke diagnosis are indeed not suitable to pursue t...
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DOMINANT MODE WAVE IMPEDANCE OF REGULAR POLYGONAL WAVEGUIDES
Polygonal metal waveguides are analyzed analytically and numerically. Classical equation for the wave impedance of arbitrary shaped waveguides is completed with approximate expression for the cutoff wavelength of the dominant mode. Proposed approach is tested with the help of 3D finite difference time domain models of microwave waveguides junctions. Obtained data are used for computer-aided design...
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HIGH-RESOLUTION, NEAR REAL-TIME SIMULATION OF MICROWAVE RADIANCE USING A SIMPLE LAND-COVER BASED EMISSIVITY PRIOR
Satellite simulators are used to calculate the brightness temperature (Tb) that would be measured by a space borne sensor under a set of atmospheric conditions accounting for the radiometric characteristics of the sensor and the orbital parameters of the satellite. In this study, a simple approach is proposed for the parameterization of emissivity over land, a key parameter for the calculation of ...
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NOVEL APPLICATORS FOR LOCAL MICROWAVE HYPERTHERMIA BASED ON ZEROTH-ORDER MODE RESONATOR METAMATERIAL
It is demonstrated that a theory of zero-order mode resonator (ZOR) metamaterial (MTM) structure can be used for the development of a novel class of applicators for microwave thermotherapy, for example, for hyperthermia in cancer treatment or for physiotherapy.The main idea of creating such an applicator is to generate and radiate a plane electromagnetic (EM) wave into the treated biological tissu...
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WIDEBAND MICROSTRIP 90° HYBRID COUPLER USING HIGH PASS NETWORK
A wideband 90° hybrid coupler has been presented and implemented in planar microstrip circuit. With similar structure of conversional 2-section branch-line coupler, the proposed coupler consists of a lumped high-pass network but not the quarter wavelength transmission at the center. The values of all lumped elements were optimized to replace a quarter-wavelength transmission line with a phase inv...
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A MULTIFREQUENCY RADAR SYSTEM FOR DETECTING HUMANS AND CHARACTERIZING HUMAN ACTIVITIES FOR SHORT-RANGE THROUGH-WALL AND LONG-RANGE FOLIAGE PENETRATION APPLICATIONS
Amultifrequency radar system for detecting humans and classifying their activities at short and long ranges is described.The shortrange radar system operates within the S-Band frequency range for through-wall applications at distances of up to 3m. It utilizes two separate waveforms which are selected via switching: a wide-band noise waveform or a continuous single tone. The long-range radar system...
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