This letter presents a general design methodology for compact layout of lumped element radio frequency (RF)/microwave matching networks based on partially overlapped inductors. We demonstrate the compact layout design approach on the output matching network of a TowerJazz 5.8-GHz SiGe power amplifier (PA) IP block fabricated in the 180-nm SBC18QH process. Our redesigned matching network achieves approximately a 20% footprint reduction. Small-signal measurements of PAs with original and compact output matching network designs, respectively, show virtually identical broadband performance.

中文翻译：

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5.8GHz SiGe 功率放大器输出匹配网络的紧凑布局重新设计

这封信提出了一种基于部分重叠电感器的集总元件射频 (RF)/微波匹配网络的紧凑布局的通用设计方法。我们在采用 180 纳米 SBC18QH 工艺制造的 TowerJazz 5.8 GHz SiGe 功率放大器 (PA) IP 模块的输出匹配网络上展示了紧凑布局设计方法。我们重新设计的匹配网络实现了大约 20% 的占地面积减少。分别具有原始和紧凑输出匹配网络设计的 PA 的小信号测量显示出几乎相同的宽带性能。