Modern mobile and wearable devices increasingly rely on compact and efficient RF systems to maintain reliable communication. In these systems, the performance of the RF front-end is highly influenced by variations in antenna impedance, user interaction, and changes in surrounding materials. These factors can cause significant fluctuations in load impedance, leading to mismatch conditions between the load and the preceding RF stage—ultimately, notably the amplifier, degrading signal quality and power transfer efficiency. To address this challenge, a reconfigurable matching network is essential. Moreover, such a network must be compact and suitable for integration with embedded systems,in oder to minimize the increase in size and weight.
In this study, we present a SPDTs-based tunable matching network capable of adjusting to varying impedance conditions. The proposed system consists of three primary subsystems: an embedded measurement block, a control block, and a tuning block. The system begins by measuring the input reflection coefficient to evaluate the level of mismatch. Based on this measurement, the control unit determines the optimal configuration of the switches in the tuning block. These switches are then set accordingly to reconfigure the network and minimize the impedance mismatch.
| Date | 7 Jan 2026 |
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| Original language | American English |
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| Awarding Institution | - École de technologie supérieure
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| Supervisor | Ammar B. Kouki (Supervisor) |
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Atash Bahar, S. (Author),
Kouki (Supervisor),
7 Jan 2026Student thesis: Master's thesis › Master in Engineering: Electrical Engineering