Optically Controlled Microstrip Semiconductor Structures

Authors

DOI:

https://doi.org/10.15407/scine21.02.088

Keywords:

Microwave filters with optical control, Semiconductor microwave filters, Controllable microwave filters, Semiconductor microwave filters with optical control, Semiconductor structures with optical control, Optical control

Abstract

Introduction. The rapid advancement of information technologies has necessitated updates to hardware components, including the development of high-performance communication devices operating in the microwave frequency range. Among these, frequency-selective devices with controllable characteristics have gained importance.
Problem Statement. Existing techniques for controlling frequency-selective devices exhibit several limitations. Mechanical and electromechanical control methods are constrained by low operational speed, bulky design,
and high control voltage requirements. Meanwhile, electronic control methods suffer from limited frequency tuning ranges, insufficient decoupling from the control circuit, and complex manufacturing processes. These challenges highlight the need for innovative approaches to circuit design, parameter control, and manufacturing technologies for such devices.
Purpose. This study aims to evaluate the feasibility of utilizing optically controlled semiconductor resonant
structures for the development of frequency-selective devices.
Materials and Methods. Semiconductor materials, such as GaAs and CdS, which exhibit conductivity modulation under laser irradiation at specific wavelengths corresponding to their peak spectral sensitivity, provide a foundation for designing these structures.
Results. This research has analyzed methodologies for creating frequency-selective devices with controllable
characteristics and introduces a novel implementation strategy. A prototype of a microstrip optically controlled
filter using GaAs, operational in the 3–6 GHz frequency range, has been tested. The achieved resonant frequency
adjustment was 69 MHz, accounting for 2% of the initial frequency.
Conclusions. The study has demonstrated the feasibility of developing optically controlled filters based on
semiconductor microstrip structures. The proposed controlled frequency-selective microwave structure can be fabricated using standard planar technology in a single manufacturing cycle, alongside active components.

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References

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Li Liu, Shasha Liao, Wei Xue, Jin Yue. (2020). Tunable all-optical microwave filter with high tuning efficiency. Optics Express, 28(5), 6918—6928. https://doi.org/10.1364/OE.384823

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Bube, R. H. (1960). Photoconductivity of Solids. John Wiley and Sons, Inc.

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Published

2025-04-12

How to Cite

TKACHENKO, N., DIDENKO, Y., TATARCHUK, D., POPLAVKO, Y., & OLIINYK, O. (2025). Optically Controlled Microstrip Semiconductor Structures. Science and Innovation, 21(2), 88–92. https://doi.org/10.15407/scine21.02.088

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Section

The Scientific Basis of Innovation