The Journal of Microwave Power
Authors not listed · 1975
1975 microwave research focused on applications, not health effects, during technology's rapid industrial expansion.
Plain English Summary
This 1975 journal issue from The Journal of Microwave Power examined industrial, scientific, and medical applications of microwave technology. The publication documented the expanding use of microwave radiation across various sectors during an era when safety protocols were still being developed. This research represents early documentation of microwave technology deployment before comprehensive health studies were conducted.
Why This Matters
The Journal of Microwave Power from 1975 captures a pivotal moment in electromagnetic technology history. This was the era when microwave applications were rapidly expanding across industries, from food processing to medical treatments, yet our understanding of biological effects remained primitive. What makes this particularly relevant today is that many of the industrial and medical microwave applications documented in 1975 operate at similar frequencies to modern wireless devices that now surround us daily.
The reality is that in 1975, the focus was almost entirely on thermal effects - the heating properties of microwaves. The possibility of non-thermal biological effects at lower power levels wasn't seriously considered by most researchers. Today we know that microwave radiation can affect biological systems through multiple pathways beyond just heating tissue. This historical perspective reminds us that our current wireless revolution is built on a foundation of incomplete biological understanding.
Finding
CW and pulsed microwaves at 2.8 Ghz, 20 mW/cm® average power level, were used to irradiate the entire dorsal surface of the animal. No significant difference in any of the 3 indices between the CW and pulsed responses could be detected.
In their words
“CW and pulsed microwaves at 2.8 Ghz, 20 mW/cm® average power level, were used to irradiate the entire dorsal surface of the animal. No significant difference in any of the 3 indices between the CW and pulsed responses could be detected.”
Source
(1975) (1975)Exposure Information
Specific exposure levels were not quantified in this study.
Study Details
To determine convenient sensitive indicators of physiological effect for the rabbit when subjected to microwave radiation, to compare responses to CW and pulsed radiation, and to determine if the animal responds differently to microwaves than to infra-red radiation.
Three physiological indicators were employed: heart rate, respiration rate and subcutaneous temperat...
Increases in all three indices (respiration rate, heart rate, and subcutaneous temperature) resulted...
The rabbit is a suitable animal for studying microwave biological effects. Respiration rate appears to be a more sensitive indicator than heart rate. There is no significant difference between CW and pulsed microwave responses. The animal responds differently to microwaves than to infra-red radiation, with temperature changes being more pronounced with infra-red.
Show BibTeX
@article{the_journal_of_microwave_power_g6299,
author = {Unknown},
title = {The Journal of Microwave Power},
year = {1975},
}