Introduction to the July 2025 Issue

This issue we bring you twenty new papers covering our usual wide range of microwave use and applications topics. We are pleased to see that half of these – ten papers – are from IEEE Fellows. Some important highlights include a non-contact heartbeat monitoring radar that captures the sonic signatures from multiple patients simultaneously and can uniquely match to a particular subject, a review article covering breast cancer detection including multiple microwave techniques, pedestrian exposure thresholds for automotive radars, audio reconstruction and monitoring through barriers with microwave backscatter signals from voice coils, accurate wireless temperature sensing with Johnson noise sources located in inaccessible and non-contact environments, helical wave transceivers with high immunity to interference, some new radar processing techniques to enhance target thresholds and help with calibration, a novel radar polled harmonic RFID tag sensor system to track human hand motions, stitched together millimeter-wave FMCW radar bands that provide superior axial resolution without violating FCC blackout frequency bands, a nice review of wireless power transfer techniques and energy harvesting using beam forming networks, wideband graphene absorbers and characterization of graphene transistor mobility, a unique stand-alone 3D positioning and navigation system based on software defined radio that is immune to jamming, a new fast optimization technique for designing arbitrary shaped continuously varying transmission line matching circuits, a useful and important paper which brings global access to more accurate component models for mixed mode RF and electro-optic circuit simulators, an improved image rejecting subharmonic mixer in the microwave region, a new low loss stacked quartz and copper substrate that can be scaled to very high frequencies, and an all planar shielded rectangular coax structure with good performance in the microwave bands. Finally, we would like to announce our 2024 Scopus CiteScore which is up 38% from 2023 and now sits at 14.8, putting us in the 95th percentile of all indexed electrical and electronic engineering journals and 45th in the CiteScore rankings.