Miniaturised high‐isolation K‐/Ka‐band diplexer with 3D antarafacial channel integration using vertical quasi‐coaxial matching network
Abstract A miniaturised high‐isolation K‐/Ka‐band diplexer with exceeding adjacent channels using 3D antarafacial channel integration and vertical‐quasi‐coaxial‐based matching network is proposed. For smaller size, lower loss and lower channel interference, the high‐order low‐pass filter for the K‐b...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-04-01
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| Series: | IET Microwaves, Antennas & Propagation |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/mia2.12470 |
| _version_ | 1827277520351789056 |
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| author | Yujin Zhou Haoyu Wei Jun Zhou Chonghu Cheng Yong Cheng |
| author_facet | Yujin Zhou Haoyu Wei Jun Zhou Chonghu Cheng Yong Cheng |
| author_sort | Yujin Zhou |
| collection | DOAJ |
| description | Abstract A miniaturised high‐isolation K‐/Ka‐band diplexer with exceeding adjacent channels using 3D antarafacial channel integration and vertical‐quasi‐coaxial‐based matching network is proposed. For smaller size, lower loss and lower channel interference, the high‐order low‐pass filter for the K‐band channel and the four‐line‐interdigital‐coupled wideband bandpass filter for the Ka‐band channel are respectively designed on two low‐loss glass‐based substrates, and these two substrates are integrated on the two antarafacial surface of the mounting board. The vertical‐quasi‐coaxial (VQC) embedded in the mounting board is not only used as three‐dimensional (3D) interconnection of the two antarafacial channels but also designed as the constituent part of the matching/isolation network, and this can effectively decrease the impedance traction caused by the Ka‐band filter for the K‐band channel of the diplexer. In addition, four transmission zeros of the K‐band filter are designed at the whole passband of the Ka‐band channel to improve the isolation to the K‐band channel for guaranteeing the performance of the diplexer at the Ka‐band channel. Furthermore, working principle, design method and test solution of this proposed K‐/Ka‐band diplexer are well illustrated, and the high‐isolation (>40 dB) in very adjacent wideband channels at K‐band (18–23.5 GHz) and Ka‐band (25.8–31.6 GHz) is achieved within a tiny size of 9 × 4 × 0.87 mm. |
| first_indexed | 2024-04-24T07:22:42Z |
| format | Article |
| id | doaj.art-ffaefa9e408e4c3aa3add37733c5ae4e |
| institution | Directory Open Access Journal |
| issn | 1751-8725 1751-8733 |
| language | English |
| last_indexed | 2024-04-24T07:22:42Z |
| publishDate | 2024-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | IET Microwaves, Antennas & Propagation |
| spelling | doaj.art-ffaefa9e408e4c3aa3add37733c5ae4e2024-04-21T01:57:22ZengWileyIET Microwaves, Antennas & Propagation1751-87251751-87332024-04-0118429129610.1049/mia2.12470Miniaturised high‐isolation K‐/Ka‐band diplexer with 3D antarafacial channel integration using vertical quasi‐coaxial matching networkYujin Zhou0Haoyu Wei1Jun Zhou2Chonghu Cheng3Yong Cheng4College of Electronic and Optical Engineering Nanjing University of Posts and Telecommunications Nanjing Jiangsu Province ChinaNanjing Engineering Technology Research Center of High‐density RF Microsystem Integration Nanjing Jiangsu Province ChinaNanjing Engineering Technology Research Center of High‐density RF Microsystem Integration Nanjing Jiangsu Province ChinaCollege of Electronic and Optical Engineering Nanjing University of Posts and Telecommunications Nanjing Jiangsu Province ChinaCollege of Electronic and Optical Engineering Nanjing University of Posts and Telecommunications Nanjing Jiangsu Province ChinaAbstract A miniaturised high‐isolation K‐/Ka‐band diplexer with exceeding adjacent channels using 3D antarafacial channel integration and vertical‐quasi‐coaxial‐based matching network is proposed. For smaller size, lower loss and lower channel interference, the high‐order low‐pass filter for the K‐band channel and the four‐line‐interdigital‐coupled wideband bandpass filter for the Ka‐band channel are respectively designed on two low‐loss glass‐based substrates, and these two substrates are integrated on the two antarafacial surface of the mounting board. The vertical‐quasi‐coaxial (VQC) embedded in the mounting board is not only used as three‐dimensional (3D) interconnection of the two antarafacial channels but also designed as the constituent part of the matching/isolation network, and this can effectively decrease the impedance traction caused by the Ka‐band filter for the K‐band channel of the diplexer. In addition, four transmission zeros of the K‐band filter are designed at the whole passband of the Ka‐band channel to improve the isolation to the K‐band channel for guaranteeing the performance of the diplexer at the Ka‐band channel. Furthermore, working principle, design method and test solution of this proposed K‐/Ka‐band diplexer are well illustrated, and the high‐isolation (>40 dB) in very adjacent wideband channels at K‐band (18–23.5 GHz) and Ka‐band (25.8–31.6 GHz) is achieved within a tiny size of 9 × 4 × 0.87 mm.https://doi.org/10.1049/mia2.12470microwave circuitsmillimetre wave communicationpassive networks |
| spellingShingle | Yujin Zhou Haoyu Wei Jun Zhou Chonghu Cheng Yong Cheng Miniaturised high‐isolation K‐/Ka‐band diplexer with 3D antarafacial channel integration using vertical quasi‐coaxial matching network IET Microwaves, Antennas & Propagation microwave circuits millimetre wave communication passive networks |
| title | Miniaturised high‐isolation K‐/Ka‐band diplexer with 3D antarafacial channel integration using vertical quasi‐coaxial matching network |
| title_full | Miniaturised high‐isolation K‐/Ka‐band diplexer with 3D antarafacial channel integration using vertical quasi‐coaxial matching network |
| title_fullStr | Miniaturised high‐isolation K‐/Ka‐band diplexer with 3D antarafacial channel integration using vertical quasi‐coaxial matching network |
| title_full_unstemmed | Miniaturised high‐isolation K‐/Ka‐band diplexer with 3D antarafacial channel integration using vertical quasi‐coaxial matching network |
| title_short | Miniaturised high‐isolation K‐/Ka‐band diplexer with 3D antarafacial channel integration using vertical quasi‐coaxial matching network |
| title_sort | miniaturised high isolation k ka band diplexer with 3d antarafacial channel integration using vertical quasi coaxial matching network |
| topic | microwave circuits millimetre wave communication passive networks |
| url | https://doi.org/10.1049/mia2.12470 |
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