Abstract
In this paper, a novel near-field cable-free impedance
and gain measurement technique for electrically small antennas is
proposed. In this technique, with the electrically small antenna
placed in the near-field region of the probe, the properties of
this antenna are extracted by measuring the signal scattered
by it when it is loaded in turn with three known loads. The
determination of the antenna impedance and gain is formulated
by using the spherical wave expansion technique. The advantages
of this measurement technique are summarized as follows.
First, the limited dynamic range problem is avoided by the
measurement close to the probe. As a result of this, the effect
of noise is reduced and the measurement accuracy is improved
significantly. Second, only a compact anechoic environment is
required, which is easy to build. The expense of this technique
is the increased complexity of the model.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 5. European Conference on Antennas and Propagation |
| Publisher | IEEE |
| Publication date | 2011 |
| Pages | 3596-3600 |
| ISBN (Print) | 978-1-4577-0250-1 |
| Publication status | Published - 2011 |
| Event | 5th European Conference on Antennas and Propagation - Rome, Italy Duration: 11 Apr 2011 → 15 Apr 2011 Conference number: 5 http://www.eucap2011.org/ |
Conference
| Conference | 5th European Conference on Antennas and Propagation |
|---|---|
| Number | 5 |
| Country | Italy |
| City | Rome |
| Period | 11/04/2011 → 15/04/2011 |
| Internet address |