Fully Inkjet Printed 85GHz Band Pass Filter on Flexible Substrate
Fully Inkjet Printed 85GHz Band Pass Filter on Flexible Substrate
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柔性基板上完全喷墨印刷的 85GHz 带通滤波器
DOI：
10.23919/eumc.2018.8541504
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
A. Shamim
中科院分区：
文献类型：
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作者：
Shuai Yang;Su Zhen;A. Shamim
在本文中，一个完全喷墨印刷毫米波段带通滤波器的柔性基板上。首先，设计了一个侧面耦合的环形谐振器，用于提取毫米波频段的基片介电特性。在此基础上，设计了一个88 GHz频段、10 GHz带宽的并联耦合微带传输线滤波器。该滤波器是通过喷墨印刷制造的，没有制造任何通孔。通过新的超级喷墨打印技术，可以可靠地打印出$\sim \mathbf{20}\mu\mathbf{m}$的非常小的特征尺寸。此外，为了比较的目的，还制作了共面波导（CPW）传输线和共面波导到微带的过渡。该滤波器的中心频率为85.75 GHz，带宽为20 GHz，具有固定和移动的卫星通信的潜在应用。插入损耗约为5.8 dB，总回波损耗低于−10 dB。抑制低于−20 dB。
In this paper, a fully inkjet printed mm-wave band pass filter on a flexible substrate is presented. Firstly, a side-coupled ring resonator is designed to extract substrate's dielectric properties at mm-wave frequency band. Then, a parallel coupled microstrip transmission line filter is designed at 88 GHz frequency band with 10 GHz bandwidth. The filter has been fabricated by inkjet printing without making any vias. Very small feature sizes of $\sim \mathbf{20}\mu\mathbf{m}$ have been reliably printed through new super inkjet printing technology. In addition, a Co-planar waveguide (CPW) transmission line and a CPW-to-microstrip transition have also been fabricated for comparison purpose. The filter's center frequency is 85.75 GHz with 20 GHz bandwidth, with potential applications fixed and mobile satellite communications. The insertion loss is ~5.8 dB, and overall return loss is below −10 dB. The rejection is lower than −20 dB.