Automatic Impedance Double-Stub Tuner for High-Power S-Band Microwave Networks

Kommey, Benjamin
Addo, Ernest Ofosu
Tamakloe, Elvis

CHIPSET (Journal on Computer Hardware, Signal Processing, Embedded System and Networking)
Vol. 6 No. 01 (2025): Journal on Computer Hardware, Signal Processing, Embedded System and Networkin

This paper presents the development of an impedance tuner realized in the WR-340 waveguide for use in S-band networks (2.45 GHz ISM band). The tuner is a double-stub structure designed to be adjoined to a reflectometer and performs automatic impedance matching using the reflectometer’s measurements through a closed-loop feedback mechanism. The device is designed to work under the full operating conditions of high-power microwave generators. Simulations and preliminary measurements show that the impedance tuner performance is stable and temperature independent. The system is suited for on-line monitoring and control of network parameters in industrial waveguide applications