Various methods have been proposed to control the electromagnetic fields in the near-or far-
field region, one of which is to use antenna arrays. This paper reviews a technique, called …

Using microwave energy for medical applications has been considered a long time ago. By
introducing near-field focused array antennas, a new approach came out in this field. This …

In this paper, we propose an optimal design procedure for the focused antenna array based
on the maximization of power transmission efficiency between two antennas. In the …

An RFID-compatible focused circular phase-array antenna working at 5.8 GHz is proposed,
which is theoretically analyzed and experimentally demonstrated. It consists of 24 half …

Near-field electromagnetic focusing has become a hot research topic due to its high
application value in wireless transmission, wireless sensing, biomedicine, and radio …

Nowadays, the classical aperture theory is supplemented by data on the properties of
electromagnetic fields in the near radiated field zone. A fundamental feature of the …

This letter presents two different designs of circularly-polarized focused microstrip antenna
arrays working at 2.45 GHz. The two antenna arrays are designed by the method of …

Focused antenna arrays may be designed to realize the desired near field patterns by
optimizing the power transmission efficiency between the focused antenna array and a …

A universal method for the optimal design of antenna arrays is introduced in this paper. The
method is based on the optimization of the power transmission efficiency between the …

This article presents a new circularly polarized (CP) focused microstrip antenna array
working at 2.45 GHz. To focus the energy of the antenna array to a target point, a CP testing …