High-Power Microwave (HPM) or Radio Frequency (RF) directed energy devices designed to emit pulsed, non-ionizing electromagnetic radiation to affect biological tissues or electronic systems.

Traits associated with these weapons include:

· Mechanism of Action: These weapons utilize high-peak power bursts of narrow-band radiofrequency energy, typically in the range of 1–100 GHz, to induce thermal or non-thermal effects in human tissue.

· The Frey Effect (Microwave Auditory Effect): A specific type of interaction where brief, intense pulses of RF energy induce auditory sensations (clicks or buzzing) by creating thermoelastic waves in the human head.

· Non-Thermal Effects: Research indicates that pulsed high-power RF can cause structural or functional damage to the brain without necessary increases in temperature, bypassing some traditional safety guidelines.

· Applications: Described as tools for military and civil purposes to incapacitate targets, cause dizziness, or damage electronic hardware.

· Associated Symptoms: Studies investigating "Havana Syndrome" have hypothesized a link to HPM, with reported symptoms including neurological damage, headache, and cognitive impairment

National Center for Biotechnology Information, & Defence Science and Technology Group. (2026). Artificial intelligence.

“High-power sub-millisecond radio frequency energy pulses have been demonstrated to be able to induce neurological and neuropathological changes in the brain,” (Yaghmazadeh,2024). (Yaghmazadeh O. Pulsed High-Power Radio Frequency Energy Can Cause Non-Thermal Harmful Effects on the BRAIN. IEEE Open J Eng Med Biol. 2024 Jan 17;5:50-53. doi: 10.1109/OJEMB.2024.3355301. PMID: 38445243; PMCID: PMC10914144).

Deruelle (2024), reported, “ (1) Since their emergence, the authorities have deployed and encouraged the use of wireless technologies (2G, 3G, 4G, WiFi, WiMAX, DECT, Bluetooth, cell phone towers/masts/base stations, small cells, etc.) in full awareness of their harmful effects on health. (2) Consequences of microwave radiation from communication networks are comparable to the effects of low-power directed-energy microwave weapons, whose objectives include behavioral modification through neurological (brain) targeting. Above 20 gigahertz, 5G behaves like an unconventional chemical weapon. (3) Biomedical engineering (via graphene-based nanomaterials) will enable brain-computer connections, linked wirelessly to the Internet of Everything through 5G and 6G networks (2030) and artificial intelligence, gradually leading to human-machine fusion (cyborg) before the 2050s,”

Deruelle F. Microwave radiofrequencies, 5G, 6G, graphene nanomaterials: Technologies used in neurological warfare. Surg Neurol Int. 2024 Nov 29;15:439. doi: 10.25259/SNI_731_2024. PMID: 39640342; PMCID: PMC11618680