Development of 6-inch 80-170 GHz broadband silicon plated horn antenna arrays for primordial gravitational wave search
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866908328646410240 |
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| author | He, Yuanhang Shu, Shibo Li, Yaqiong Lu, Xuefeng Chai, Ye Li, Xiang Chang, Zhi Gao, He Gu, Yudong Li, Xufang Li, Zhengwei Liu, Zhouhui Wang, Guofeng Xin, Zhongxue Yan, Daikang Zhang, Aimei Zhang, Yifei Zhang, Yongjie Shi, Wenhua Cao, Juexian Liu, Congzhan |
| author_facet | He, Yuanhang Shu, Shibo Li, Yaqiong Lu, Xuefeng Chai, Ye Li, Xiang Chang, Zhi Gao, He Gu, Yudong Li, Xufang Li, Zhengwei Liu, Zhouhui Wang, Guofeng Xin, Zhongxue Yan, Daikang Zhang, Aimei Zhang, Yifei Zhang, Yongjie Shi, Wenhua Cao, Juexian Liu, Congzhan |
| contents | Searching for primordial gravitational wave in cosmic microwave background (CMB) polarization signal is one of the key topics in modern cosmology. Cutting-edge CMB telescopes requires thousands of pixels to maximize mapping speed. Using modular design, the telescope focal plane is simplified as several detector modules. Each module has hundreds of pixels including antenna arrays, detector arrays, and readout arrays. The antenna arrays, as the beam defining component, determine the overall optical response of the detector module. In this article, we present the developments of 6-inch broadband antenna arrays from 80GHz to 170GHz for the future IHEP focal plane module. The arrays are fabricated from 42 6-inch silicon wafers including 456 antennas, 7% more pixels than usual design. The overall in-band cross polarization is smaller than -20 dB and the in-band beam asymmetry is smaller than 10%, fulfilling the requirements for primordial gravitational wave search. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2504_14585 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Development of 6-inch 80-170 GHz broadband silicon plated horn antenna arrays for primordial gravitational wave search He, Yuanhang Shu, Shibo Li, Yaqiong Lu, Xuefeng Chai, Ye Li, Xiang Chang, Zhi Gao, He Gu, Yudong Li, Xufang Li, Zhengwei Liu, Zhouhui Wang, Guofeng Xin, Zhongxue Yan, Daikang Zhang, Aimei Zhang, Yifei Zhang, Yongjie Shi, Wenhua Cao, Juexian Liu, Congzhan Instrumentation and Methods for Astrophysics Instrumentation and Detectors Searching for primordial gravitational wave in cosmic microwave background (CMB) polarization signal is one of the key topics in modern cosmology. Cutting-edge CMB telescopes requires thousands of pixels to maximize mapping speed. Using modular design, the telescope focal plane is simplified as several detector modules. Each module has hundreds of pixels including antenna arrays, detector arrays, and readout arrays. The antenna arrays, as the beam defining component, determine the overall optical response of the detector module. In this article, we present the developments of 6-inch broadband antenna arrays from 80GHz to 170GHz for the future IHEP focal plane module. The arrays are fabricated from 42 6-inch silicon wafers including 456 antennas, 7% more pixels than usual design. The overall in-band cross polarization is smaller than -20 dB and the in-band beam asymmetry is smaller than 10%, fulfilling the requirements for primordial gravitational wave search. |
| title | Development of 6-inch 80-170 GHz broadband silicon plated horn antenna arrays for primordial gravitational wave search |
| topic | Instrumentation and Methods for Astrophysics Instrumentation and Detectors |
| url | https://arxiv.org/abs/2504.14585 |