A Shaped and Reconfigurable Reflector Antenna With Sectorial Beams for LMDS Base Station

Design, Finite Element Analysis and Implementing a Reconfigurable Antenna With Beam Switching Operating at Ism Band

“…So far, many reconfigurable antennas have been reported in the literature among which frequency response, polarization and radiation pattern are the main aspects of reconfigurability [1]. Radiation-pattern reconfigurability which is the subject of this paper has found many applications in base-station antennas [2]. Different techniques can be used to make an antenna radiation pattern reconfigurable.…”

A Novel Reconfigurable Spiral-Shaped Monopole Antenna for Biomedical Applications

“…However, changing in the current distribution can change the operating frequency of the antenna which can be counted as a drawback for these kinds of antennas. Although it is possible to alter spatial distribution of the radiation pattern while the operating frequency is fixed, it is a difficult task to accomplish [6][7][8]. Many commonly used antennas, such as linear antennas, loop antennas, slot antennas, and microstrip antennas, usually operate in their resonance frequencies.…”

A new configurable beamwidth antenna using cylindrical electromagnetic Band Gap

“…For instance, remote sensing by satellites and aircraft has provided potential applications of antennas with variable beamwidth. In addition, secure communication and radar systems need more ability of controlling the radiation beamwidth [1]- [2]. To fulfill these requirements, various techniques for designing variable-beamwidth antennas have recently been proposed [1]- [3].…”