Velocity Micro's Raptor Z55a packs a lot of power in a modest-looking micro-tower. With many configuration options, this ...

The ARRL used to have a requirement that any antenna advertised in their publications had to have real-world measurements accompanying it, to back up any claims of extravagant performance. I’… ...

Using heat-activated nitinol metal, researchers have devised a reversible, shape-shifting, conical spiral antenna that needs no discrete external actuator.

For these results, the near-to-far-field mapping parameters need to be calibrated before any measurements can be transformed into far-field characteristics. Once known and stored, the parameters are ...

Useable data is one of the most valuable tools scientists can have. The more data sources they have, the better they can make statements about their research topic. For a long time, researchers in the ...

In this paper, a method of correcting the single-cut far-field (FF) mode of a two-dimensional antenna array at a quasi-far-field (QFF) range by using separable excitation coefficient variables is ...

In many cases, it is impractical or impossible to make antenna pattern measurements on a conventional far-field range; the distance to the radiating far field may be too long, it may be impractical to ...

With independent antenna resonance and IR laser frequency degrees of freedom, this approach can be viewed as a linear analogue to 2D IR spectroscopy. With nanoscale spatial resolution and sensitivity ...

NFC tags are a frequent target for experimentation, whether simply by using an app on a mobile phone to interrogate or write to tags, by incorporating them in projects by means of an off-the-shelf … ...

The majority of specifications are designed and written for testing an antenna in the far field, which requires a test engineer to know how far away from a given antenna the test antenna must be ...

Now we can perform the “Far Field pattern” simulation, to display the radiation diagram, as shown in Figure 8. It is used to check the behavior of the antenna, observing in which directions the signal ...