ABSTRACT This paper presents an ultra-wideband and highly miniaturized dual-mode Wilkinson power divider fabricated using thin film integrated passive device (TFIPD) technology for GSM band (0.9 GHz). The four quarter-wavelength lines of conventional two-section Wilkinson power divider are replaced with π-type transformer. In addition, a RC filter is introduced at the input port to minimize the return loss. The presented power divider prototype is micro-fabricated on a gallium arsenide (GaAs) substrate through TFIPD technology to reduce overall structure size and minimize overall parasitic losses. The fabricated power divider exhibits compact size at central frequency of 0.9 GHz with an ultra-wideband working bandwidth. To the best of authors’ knowledge, the designed power divider is approximately 8 times smaller than the previously reported power dividers.

中文翻译：

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基于薄膜集成无源器件制造技术的超紧凑宽带双模威尔金森功分器

摘要 本文介绍了一种超宽带和高度小型化的双模威尔金森功率分配器，该功率分配器采用薄膜集成无源器件 (TFIPD) 技术制造，适用于 GSM 频段 (0.9 GHz)。用π型变压器代替传统两段威尔金森功分器的四根四分之一波长线。此外，在输入端口引入了一个 RC 滤波器，以最大限度地减少回波损耗。所提出的功率分配器原型是通过 TFIPD 技术在砷化镓 (GaAs) 衬底上微制造的，以减小整体结构尺寸并最大限度地减少整体寄生损耗。制造的功率分配器在 0.9 GHz 的中心频率下具有紧凑的尺寸和超宽带工作带宽。据作者所知，