A new broadband monolithic passive differential coupler for K/ka-band applications
A new broadband monolithic passive differential coupler for K/ka-band applications
复制标题
适用于 K/ka 波段应用的新型宽带单片无源差分耦合器
DOI：
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发表时间：
2006
影响因子：
4.3
通讯作者：
Y. Antar
中科院分区：
文献类型：
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作者：
K. Hamed;A. Freundorfer;Y. Antar
一种新型的毫米波宽带单片无源正交差分耦合器已经实现。新的耦合器上实现的多介质层结构，以实现从15到45 GHz的宽带性能在一个简单的共面配置。该耦合器采用IBM SIGEHP（BICMOS 5HP）工艺单片制造。测量的回波损耗优于20 dB，隔离度为15 dB，并已达到足够的相位和幅度失配超过3：1的带宽为中心的30 GHz。这种性能对于宽带双平衡混频器和放大器的预期用途尤为重要。为了缩小整个耦合器面积，引入了慢波技术，使耦合器的整体尺寸减小了近38%。测试结果表明，慢波差分耦合器的回波损耗优于25 dB，隔离度优于15 dB，相位和幅度失配分别在± 5 deg和± 1 dB以内
A new broadband monolithic passive quadrature differential coupler has been realized at millimeter-wave frequencies. The new coupler is implemented on a multidielectric layer structure to achieve a broadband performance from 15 to 45 GHz in a simple coplanar configuration. The coupler has been monolithically fabricated using the IBM SIGEHP (BICMOS 5HP) process. Measured return loss better than 20 dB, with an isolation of 15 dB, and adequate phase and amplitude mismatch have been achieved over 3 : 1 bandwidth centered at 30 GHz. This performance is especially important to the intended use with wideband double-balanced mixers and amplifiers. To shrink the overall coupler area, a slow-wave technique has been introduced, resulting in an overall size reduction of the coupler by almost 38%. The fabricated slow-wave differential coupler measured results show return loss better than 25 dB, isolation better than 15 dB, and phase and amplitude mismatch within plusmn5deg and plusmn1 dB, respectively