Frequency and Beam Reconfigurable Antenna Using Photoconducting Switches

Reconfigurable Antenna With Elevation and Azimuth Beam Switching

“…This dipole with silicon photo switches was demonstrated to avoid unwanted radiation caused by leakage current on dc bias circuit. The dipole also provided elevation steering of 12 for the direction of the maximum radiation [12]. However, single-element methods are limited by small steering angles and cannot switch the beam in two planes using a single feed operating at a fixed frequency.…”

Intermodulation distortion in a photoconductive microwave switch

“…1, similar to the kind used by Panagamuwa et al [12]. When illuminated by near infra-red light, electrons in the silicon are promoted from the valence band to the conduction band.…”

Optically controlled reconfigurable antenna for 5G future broadband cellular communication networks

“…There are several mechanisms to reconfigure the antenna structure. Particularly, optically controlled antennas have been intensely exploited in the last years due to their unique advantages, such as: easy integration to optical systems, absence of bias lines, linear behavior, very fast switching and activation without producing harmonics and intermodulation [11,[14][15]. The proposed antenna is based on a Slotted Waveguide Antenna Array (SWAA) [16], composed by a metallic waveguide with proper dimensioned and disposed slots, distributed on its narrowest face, as shown in Fig.…”