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Frontiers of Information Technology & Electronic Engineering
ISSN 2095-9184 (print), ISSN 2095-9230 (online)
2020 Vol.21 No.1 P.174-181
Integrated 60-GHz miniaturized wideband metasurface antenna in a GIPD process
Abstract: We propose a miniaturized wideband metasurface antenna for 60-GHz antenna-in-package applications. With the glass integrated passive device manufacturing technology, we introduce a coplanar-waveguide-fed (CPW-fed) ring resonator to characterize the material properties of the glass substrate. The proposed antenna is designed on a high dielectric constant glass substrate to achieve antenna miniaturization. Because of the existence of gaps between patch units compared with the conventional rectangular patch in the TM10 mode, the radiation aperture of this proposed antenna is reduced. Located right above the center feeding CPW-fed bow-tie slot, the metasurface patch is realized, supporting the TM10 mode and antiphase TM20 mode simultaneously to improve the bandwidth performance. Using a probe-based antenna measurement setup, the antenna prototype is measured, demonstrating a 10-dB impedance bandwidth from 53.3 to 67 GHz. At 60 GHz, the antenna gain measured is about 5 dBi in the boresight direction with a compact radiation aperture of 0.31λ0×0.31λ0 and a thickness of 0.06λ0.
Key words: 60 GHz, Antenna-in-package (AiP), Coplanar-waveguide-fed (CPW-fed) ring resonators, Glass integrated passive device (GIPD), Metasurface antenna, Miniaturized antenna
1东南大学信息科学与工程学院移动通信国家重点实验室,中国南京市,210096
2紫金山实验室,中国南京市,211111
3西安电子科技大学微电子学院,中国西安市,710071
摘要:提出一种面向封装天线应用的60-GHz小型化宽带超表面天线。基于玻璃集成无源器件制造技术,采用共面波导馈电环形谐振器表征玻璃基板的材料特性。该天线于高介电常数玻璃基板上设计以实现天线小型化。在TM10模式下,贴片单元之间的间隙使该天线贴片辐射孔径得以减小。该天线在结构上采用共面波导馈电,进而激励蝶形缝隙,最终耦合激励位于天线上表面的超表面贴片。该天线可同时支持TM10模和反相TM20模,从而提升带宽性能。经过设计、优化及加工,该天线的辐射贴片尺寸为0.31λ0×0.31λ0,厚度为0.06λ0。采用基于探针结构的天线测量装置完成该天线测试,测试结果显示天线带宽为53.3—67GHz。在60 GHz频点处,该天线增益测量值约为5 dBi。
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DOI:
10.1631/FITEE.1900453
CLC number:
TN82
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On-line Access:
2024-08-27
Received:
2023-10-17
Revision Accepted:
2024-05-08
Crosschecked:
2020-01-16