A novel approach for testing antennas with internal sources: Phaseless near-field measurements

Summary form only given. Integrated antennas are increasingly becoming common components within modern wireless devices. This is advantageous from both a design and fabrication standpoint. In general, these devices provide an internal source for the antenna and do not contain a port to inject an external source. Clearly from antenna testing standpoint, verifying performance and conducting measurements presents a very challenging problem. In conventional near-field measurements, a referenced signal is required because both amplitude and phase must be measured for the calculation of the far-field radiation pattern from the measured near fields. For antennas that feature their own internal source, the input signal must have some way to be referenced. Unless the original device specifically allows a way to do so, this is usually not possible. Thus, for measurements of an antenna with an internal source, one cannot use the measurement configuration in the conventional way.