Observations from NASA’s Juno spacecraft reveal that Jupiter’s strong magnetic field and the unique properties of its plasma ...

We developed a measurement system to improve the long-term stability of electrooptic phase measurements and measured a cylindrical near-field of a high-gain antenna using this system. The far-field ...

Astronomers expected to see radiation-blasted scars on the sides of Uranus’ biggest moons that trail one after the other in orbit. Instead, they found darker patches on the moon faces that plow ...

A source reconstruction technique from the measured near fields is proposed to obtain a set of equivalent currents that will characterize the forward and backward radiation patterns of an antenna.

Measuring an antenna’s radiation properties is important, especially when it comes to complying with regulations and system specifications, and verifying the system’s mission-readiness. The importance ...

Normalized far field radiation patterns for 2, 4, and 8 element half-wave dipole antenna arrays, with both vertical and oblique (45 ° °) incidence. Radiation patterns are determined a radius of 1 km ...

Xnec2c is a high-performance multi-threaded electromagnetic simulation package to model antenna near- and far-field radiation patterns for Linux and UNIX operating systems.

EM radiation in and near the visible region of the spectrum is generally referred to broadly as ‘light.’ We can construct a more complete image of an object’s structure, composition, and behavior by ...

In the high band, omnidirectional radiation patterns are also obtained and the cross-polarization levels are lower than −15 dB compared with the co-polarization counterpart in both planes. In ...

After building the Yagi, the predicted tuning and impedance matched the real antenna nicely. But what about the radiation pattern? To test that, he used a NanoVNA and a clever test setup.