Pan Ren, Yaya Liang, Bo Peng, Chulin Wang, Cong Liu, Pingan Du
{"title":"A Low-Loss High-Frequency Transmission Line Structure for Ceramic Substrate","authors":"Pan Ren, Yaya Liang, Bo Peng, Chulin Wang, Cong Liu, Pingan Du","doi":"10.1002/mop.70360","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>An increase in signal frequency will lead to high transmission loss, the paper presents a novel high-frequency transmission line (HFTL) with low loss on the ceramic substrate. Based on the grounded coplanar waveguide (GCPW), the HFTL adds a parallel conductor under the center conductor strip, forming a two-layer structure interconnected by vias. It lowers the conductor's surface current density and surface impedance, significantly reducing losses. The transmission line structure is easy to integrate with RLC components and can be fabricated using existing HTCC processes. The characteristic impedance of the HFTL is derived to facilitate impedance matching, and the influence of geometric parameters on the characteristic impedance are also studied. The results from simulation and test show that the HFTL can achieve a 105.4% increase in bandwidth when the 3 dB bandwidth of GCPW is 31.2 GHz, and a 28.7% reduction in loss within the pass band compared to GCPW.</p>\n </div>","PeriodicalId":18562,"journal":{"name":"Microwave and Optical Technology Letters","volume":"67 9","pages":""},"PeriodicalIF":1.2000,"publicationDate":"2025-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Microwave and Optical Technology Letters","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/mop.70360","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
An increase in signal frequency will lead to high transmission loss, the paper presents a novel high-frequency transmission line (HFTL) with low loss on the ceramic substrate. Based on the grounded coplanar waveguide (GCPW), the HFTL adds a parallel conductor under the center conductor strip, forming a two-layer structure interconnected by vias. It lowers the conductor's surface current density and surface impedance, significantly reducing losses. The transmission line structure is easy to integrate with RLC components and can be fabricated using existing HTCC processes. The characteristic impedance of the HFTL is derived to facilitate impedance matching, and the influence of geometric parameters on the characteristic impedance are also studied. The results from simulation and test show that the HFTL can achieve a 105.4% increase in bandwidth when the 3 dB bandwidth of GCPW is 31.2 GHz, and a 28.7% reduction in loss within the pass band compared to GCPW.
期刊介绍：
Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas.
- RF, Microwave, and Millimeter Waves
- Antennas and Propagation
- Submillimeter-Wave and Infrared Technology
- Optical Engineering
All papers are subject to peer review before publication
求助内容：
应助结果提醒方式：
京公网安备 11010802042870号
