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Photoconductive Switch for MmWave Substrate Integrated Waveguide (SIW)
Authors
	Shepeleva E.A.
	Makurin M.
	Nikishov A.
	Lukyanov A.
	Evtyushkin G.A.
Date of publication
	2018
DOI
	10.31114/2078-7707-2018-4-63-69
Abstract
	This paper presents a new approach for switching of mmWave substrate integrated waveguide (SIW) structures by using light controlled photoconductive element. Without light this element presents a dielectric material and passes electromagnetic waves. Under illumination it becomes conductive, shunts RF currents and reflects the signal. Due to light control, proposed switch is electrically separated from RF paths of device and solve the problem of other switches (PIN diodes, MEMS, MOSFETs) requiring large control and bias circuits that lead to increasing of insertional loss and size of device, and reduction of its bandwidth. As a result, proposed switch is very convenient for integration into PCB antenna devices. Its simple structure and universality of approach make it suitable for 10-100GHz applications limited by PCB fabrication facilities only. The achieved and experimentally confirmed switch’s parameters: isolation is >15dB, insertion loss is <0.5dB.
Keywords
	Photoconductive switch, substrate integrated waveguide, mmWave
Library reference
	Shepeleva E.A., Makurin M., Nikishov A., Lukyanov A., Evtyushkin G.A. Photoconductive Switch for MmWave Substrate Integrated Waveguide (SIW) // Problems of Perspective Micro- and Nanoelectronic Systems Development - 2018. Issue 4. P. 63-69. doi:10.31114/2078-7707-2018-4-63-69
URL of paper
	http://www.mes-conference.ru/data/year2018/pdf/D104.pdf