A 27–39-GHz VSWR-Resilient Compact True Power and Gain Sensor With Built-In Sensing Error Compensation for Integrated Power Amplifiers

IF 5.6 1区工程技术 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Journal of Solid-state Circuits Pub Date : 2025-01-10 DOI:10.1109/JSSC.2025.3525958

Edward Liu;David Munzer;Jeongseok Lee;Jianping Zeng;Hua Wang

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引用次数: 0

Abstract

The output power of a transmitter (TX) array can degrade due to a variety of factors, such as device aging, thermal degradation, and load impedance mismatch of the power amplifier due to antenna mutual coupling. Power sensors are needed on phased arrays to detect if any output power degradation occurs. Of these events, we will mainly focus on antenna voltage standing wave ratio (VSWR)-related power degradation, as these events occur on a much shorter timescale compared with long-term effects such as device aging. VSWR-resilient power sensors are required to support these VSWR scenarios. They need to maintain high sensing accuracy and dynamic range (DR) even under unknown complex load impedances in a compact form factor. Therefore, this work presents a broadband VSWR-resilient compact power and gain sensor with integrated power amplifier (PA) that achieves a power sensing error (PSE) of ≤±1.5/3 dB over a VSWR of 2:1/3:1, respectively, from 27 to 39 GHz. Over the same 2:1/3:1 VSWR and frequency range, the DR is >18.69/17.65 dB. The sensor consumes 24.8 mW of power and occupies only 0.044 mm2, ensuring a low overhead implementation for array applications. The sensor is also PA design-agnostic and supports single-ended antennas.

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一种用于集成功率放大器的27 - 39 ghz vswr弹性紧凑型真功率增益传感器，内置传感误差补偿

由于器件老化、热退化、天线互耦导致功率放大器负载阻抗失配等多种因素，发射器（TX）阵列的输出功率会下降。相控阵需要功率传感器来检测输出功率是否下降。在这些事件中，我们将主要关注与天线电压驻波比（VSWR）相关的功率退化，因为与器件老化等长期影响相比，这些事件发生的时间要短得多。VSWR弹性功率传感器需要支持这些VSWR场景。他们需要保持高传感精度和动态范围（DR），即使在未知的复杂负载阻抗在一个紧凑的外形因素。因此，本研究提出了一种带集成功率放大器（PA）的宽带抗VSWR紧凑型功率和增益传感器，在27至39 GHz的VSWR范围内，功率传感误差（PSE）分别为2:1/3:1，≤±1.5/3 dB。在相同的2:1/3:1 VSWR和频率范围内，DR为>18.69/17.65 dB。该传感器功耗为24.8 mW，占地面积仅为0.044 mm2，确保了阵列应用的低开销实现。该传感器与PA设计无关，支持单端天线。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Journal of Solid-state Circuits 工程技术-工程：电子与电气

CiteScore

11.00

自引率

20.40%

发文量

351

审稿时长

3-6 weeks

期刊介绍： The IEEE Journal of Solid-State Circuits publishes papers each month in the broad area of solid-state circuits with particular emphasis on transistor-level design of integrated circuits. It also provides coverage of topics such as circuits modeling, technology, systems design, layout, and testing that relate directly to IC design. Integrated circuits and VLSI are of principal interest; material related to discrete circuit design is seldom published. Experimental verification is strongly encouraged.