2134/24325
Emma K. Kowalczuk
Emma K.
Kowalczuk
Chinthana Panagamuwa
Chinthana
Panagamuwa
Rob Seager
Rob
Seager
Intermodulation distortion in a photoconductive microwave switch
Loughborough University
2017
Photoconductive switch
Optical control
Fiber optic
Silicon
Linearity
Intermodulation
Harmonic distortion
Microwave switch
Reconfigurable antenna
Mechanical Engineering not elsewhere classified
2017-03-07 14:01:00
Conference contribution
https://repository.lboro.ac.uk/articles/conference_contribution/Intermodulation_distortion_in_a_photoconductive_microwave_switch/9553610
Single-tone harmonic and two-tone intermodulation distortion measurements are presented for a photoconductive microwave switch. The switch consists of a lightly doped die of silicon mounted over a gap in a transmission line. The switch is controlled via near infra-red light delivered by a fiber optic cable. Whilst under constant illumination, the third order intercept for a 2 GHz CW signal is extrapolated to be 74 dBm. Under a 1 MHz spaced two-tone signal, the extrapolated intermodulation intercept point is 58 dBm.