Scientists bend, not break, the laws of physics.
Faced with limitations imposed by physics, laboratory researchers are generating antenna innovations by tweaking constructs to change the rules of the antenna game. Their efforts do not seek to violate long-held mathematical theorems or laws of physics. Instead, they are working to find lawful ways of working around limitations that long have inhibited the development of antennas that would suit user needs with fewer tradeoffs.
Currently, many types of antennas can be made small enough to fit in a tight area. Yet, they suffer performance drawbacks or are extremely limited in their application. Conversely, the type of antenna suitable for high-bandwidth links may prove detrimental to a use that requires low observability.
Laboratories in industry and academia are pursuing different approaches for future antenna technology breakthroughs. These efforts involve materials, architectures and network topologies. If successful, this research could lead to unobtrusive panels that replace large antennas as well as new capabilities for antenna-bearing platforms.
Howard Stuart, technical staff member at LGS Innovations, explains that the art of building smaller antennas comes up against the laws of physics. The issue is not one of miniaturization but of signal performance when antennas are built below a certain size.
“You can’t keep making antennas smaller and smaller,” Stuart points out. “There are fundamental physical limitations, and beyond that, [the antenna] is just not going to work anymore. Or, you’re going to have to give up something, such as gain.”