Integrated W-band Photoconductive Switches in SIW Technology
Artikel i vetenskaplig tidskrift, 2021

A novel approach for the design of mmWave substrate integrated waveguide (SIW) switches is presented. The switch is based on controllable photoconductive elements (PEs), whose conductivity is modulated by a light source. The PE is integrated on the top SIW metal plate and provides either a short-circuit or transmission operation regime, depending on the actuation conditions. Owing to the light actuation, the mmWave and DC control circuitry are naturally decoupled, which, in turn, makes the design low-loss and compact as compared to PIN diode and integrated circuit-based SIW switches implementations. We demonstrate two examples of SIW photoconductive switches (PSs) at W-band: single-pole single-throw (SPST) and single-pole double-throw (SPDT) PSs. Their operation principle, actuation, and parasitic radiation suppression are discussed. Measurements show the peak insertion loss of 0.9 and 2.2 dB, isolation better than 25 and 30 dB, and –10-dB impedance bandwidth of 21 and 15% for the SPST and SPDT PSs, respectively.


photoconductive switch

substrate integrated waveguide

single-pole double-throw


Elena Shepeleva

Samsung R&D Institute Russia

Mikhail Makurin

Samsung R&D Institute Russia

Gennady Evtyushkin

Samsung R&D Institute Russia

Anton Lukyanov

Samsung R&D Institute Russia

Artem Vilenskiy

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

Sergey Chernyshev

Bauman Moscow State Technical University

Marianna Ivashina

Chalmers, Elektroteknik, Kommunikation, Antenner och Optiska Nätverk

IEEE Microwave and Wireless Components Letters

1531-1309 (ISSN) 15581764 (eISSN)

Vol. 31 7 865-868 9411882

Integrated Antenna Arrays

Saab, 2016-01-01 -- 2023-12-29.

Kongsberg kommune, 2016-01-01 -- 2023-12-29.

Gapwaves AB, 2016-01-01 -- 2023-12-29.

United Monolithic Semiconductors (UMS), 2016-01-01 -- 2023-12-29.

VINNOVA, 2016-01-01 -- 2021-12-31.

Ericsson AB, 2016-01-01 -- 2023-12-29.


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