Quasi-Lumped Coplanar Waveguide Diplexers for a Multichroic Polarimeter
This article presents a multichroic Kinetic Inductance Bolometer (KIB) polarimeter that utilizes coplanar waveguide (CPW) diplexers. The CPW diplexers function as filters, providing two passbands centered at 220 GHz and 280 GHz. The high-quality-factor resonant units deliver excellent transmission and isolation characteristics. Additionally, the quasi-lumped-element resonator design enables a significant reduction in size compared to conventional microstrip diplexers. The entire polarimeter—comprising orthomode transducer (OMT) probes, diplexers, KIBs, and CPW feed lines—is integrated on a single plane, allowing for one-layer superconducting thin-film fabrication with a simplified process. The compact size, superior frequency response, and streamlined fabrication process make the proposed pixel scheme suitable for integrated array development.
Authors
- Weijie Guo (ORCID: https://orcid.org/0000-0002-1196-5153)
- Haoyu Wang (ORCID: https://orcid.org/0000-0003-3131-8217)
- Liming Zou (ORCID: https://orcid.org/0000-0002-9635-4879)
- Sirui Ren (ORCID: https://orcid.org/0009-0009-4783-2545)
- Ruirui Fan (ORCID: https://orcid.org/0000-0001-9486-451X)
- Xiaohui Yan (ORCID: https://orcid.org/0000-0003-2114-8357)
- Yumin Qiu (ORCID: https://orcid.org/0000-0002-5443-271X)
- Shiling Yu
- Ran Duan (ORCID: https://orcid.org/0000-0002-9260-1641)
- Yiwen Wang (ORCID: https://orcid.org/0000-0003-2337-1181)
- Jiawei Liu (ORCID: https://orcid.org/0000-0001-5546-5073)
- Yu Wang (ORCID: https://orcid.org/0009-0007-4745-7912)
- Haitao Wang (ORCID: https://orcid.org/0000-0001-6910-974X)
- Yue Hong
- Xiaohang Zhang (ORCID: https://orcid.org/0000-0003-2664-0877)
- Tian Xia (ORCID: https://orcid.org/0000-0003-1790-7867)
- Mingzhu Zhang (ORCID: https://orcid.org/0000-0002-6944-2558)
- Zhongyu Shi
- Hongli Zhu
- Xucheng Dai
- Yanru Song
- Zhanzhang Mai (ORCID: https://orcid.org/0009-0004-0117-1052)
Institutions
- Chinese Academy of Sciences (CN)
- Southern University of Science and Technology (CN)
- ShanghaiTech University (CN)
- Zhejiang Lab (CN)
- National Astronomical Observatories (CN)
- Southwest Jiaotong University (CN)
Publication Details
- Journal
- IEEE Transactions on Applied Superconductivity
- Published
- 2024-12-12
- DOI
- https://doi.org/10.1109/tasc.2024.3514596
- Primary Topic
- Photonic and Optical Devices
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China