Radio frequency converters（RFC）
Astronomical instrumentation and related fields have seen remarkable evolution in recent decades, driving the need for advanced signal acquisition and processing techniques. Current experiments demand readout capabilities beyond traditional approaches, leading to the adoption of a wideband instrumentation system architecture for high-speed Radio Frequency (RF) measurements. Field Programmable Gate Array (FPGA) and System on Chip (SoC) devices, owing to their features, are well-suited to perform tasks related to the digital back-end of these types of systems.
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High-power radio frequency converters (RFCs) need to deliver a wide-range power against variable load impedance. However, it is difficult to achieve a wide-range power regulation and zero voltage switching (ZVS) simultaneously. To address thi.s issue, this paper proposes a DC-link parallel AC-link series (DPAS) multiple power amplifier (MPA) architecture with outphasing modulation. The generalized mathematical model of the proposed topology is presented. The system’s soft-switching range and criterion are analyzed.
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