JONSSON , B. L. G.

An embedded antenna (EA) is any antenna that lies completely within the device housing. Because of this, this antenna will strongly interact with the entire device chassis which creates a complex situation where the antenna impedance, quality factor, radiation efficiency, and radiation pattern depend strongly on the position of the EA. The...

This work present the experimental assessment of frequency bandwidth limits on 2x2 cm antenna embedded in a 5x5cm terminal at 900MHz. A meander Inverted F antenna is synthesized, prototyped and measured. The operating frequencybandwidth and radiation efficiency are extracted from radiation measurement. Comparison with optimal bounds on the...

This paper considers a small embedded planar antenna in a square-shaped terminal of 25 cm2 at a frequency band near 900 MHz, intended for long-range communication. This paper aims to shows how the Q-factor bounds can be used to predict the performance of such an antenna. Both to determine the optimal bandwidth and the variations in the total...

This paper revisit and extend the interesting case of bounds on the Q-factor for a given directivity for a small antenna of arbitrary shape. A higher directivity in a small antenna is closely connected with a narrow impedance bandwidth. The relation between bandwidth and a desired directivity is still not fully understood, not even for small...