Coordinate systems, conventions and transformations are introduced and are used to illustrate the effects of alignment errors in antenna measurements. Vector isometric rotations are then used as the ...

The NSI-MI Technologies measurement system is ideal for measuring millimetre wave antennas packaged on chip from 10GHz to 110GHz. The NSI 2000 software allows for radiated results to be processed and ...

Comprehensive in scope, this volume provides an explanation of both the theory and practice of planar near-field measurements, from basic postulates and assumptions, to intricacies of its deployment ...

Measurements of Global Navigation Satellite Systems (GNSS) refer to the electrical phase centers of the GNSS transmitting and receiving antennas. The phase center offsets (PCOs) between the electrical ...

The tape measure elements make the antenna easy to handle and foldable, not to mention pretty cheap to build. And what’s not to love about that?

Getting the two together, as with this field-portable antenna made from a tape measure, is a double win in any ham’s book. For [Paul (OM0ET)], this build seems motivated mainly by the ...