Frequency Reconfigurable Antenna Performance Analysis with Various Light Sources

Abstract

Abstract This research presents a frequency reconfigurable antenna analysis for wireless applications using multiple light sources. The antenna is constructed on a Roger substrate with (44x28) mm2 dimensions. The antenna comprises two parallel tuner arrangements in addition to a V-shaped radiating section. Two optical PIN photodiodes are connected to the two parallel monopole tuners, which serve as the antenna's switching component and are utilized to adjust the resonant frequency. These two PIN photodiode switches work in the 600–1050 nm wavelength range. To analyze the antenna performance, four different optical sources are used. They are White colour LED lamp, 650 nm optical fiber, red LEDs, and IR LEDs. In every cases, the antenna performance analysis are carried out for all the four logic state of the switches (00, 01,10,11). Under white lamp test conditions, the antenna's maximum gain is 6 dBi, and when red LEDs are employed as the optical source, its maximum bandwidth is 21%. The antenna reconfigurable frequencies are 3.5GHz and 5-5.8GHz (5, 5.2, 5.5, 5.8 GHz).