All aircraft start out looking sleek and graceful. Then comes the avionics department, and their sleekness diminishes because every surface seems to have an antenna attached. Large or mission-specific ...

Fig. 1 | Schematics of the PA-PSO algorithm. (a) and (b) Working principle of the metalens antenna. (c) and (d) Comparison between the traditional PSO and PA-PSO algorithm. The red and blue stars ...

Here is an antenna researchers were able to shrink in size. Researchers at the Air Force Research Laboratory, working with Northeastern University, recently developed an ultra-compact antenna that ...

This article was written by Louis Frenzel, author of Principles of Electronic Communications Systems, that addresses this topic and much more. Antennas are much more than simple devices connected to ...

This antenna tuning unit (ATU) enables half-wavelength or longer wire antennas to be matched to the 50-ohm antenna input of 27-MHz Citizens’ Band (CB) rigs. The ATU is useful in those cases where a ...