Intermodulation distortion in a photoconductive microwave switch

Kowalczuk, Emma K.; Panagamuwa, Chinthana; Seager, Rob

Intermodulation Distortion in a Photoconductive Microwave Switch (2).pdf (646.53 kB)

Intermodulation distortion in a photoconductive microwave switch

conference contribution

posted on 2017-03-07, 14:01 authored by Emma K. Kowalczuk, Chinthana PanagamuwaChinthana Panagamuwa, Rob SeagerRob Seager

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.

History

School

Mechanical, Electrical and Manufacturing Engineering

Published in

Loughborough Antennas and Propagation Conference

Citation

KOWALCZUK, E.K., PANAGAMUWA, C.J. and SEAGER, R.D.,2016. Intermodulation distortion in a photoconductive microwave switch. Presented at the Loughborough Antennas and Propagation Conference (LAPC 2016), Loughborough, 14-15 Nov.

Publisher

Version

AM (Accepted Manuscript)

Acceptance date

2016-08-24

Publication date

2016

Notes

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