ShanghaiTech University Knowledge Management System
| A Phase Canceling Technique to Improve SAW Duplexer Isolation | |
| 2023-02 | |
| Source Publication | MICROMACHINES
 |
| EISSN | 2072-666X |
| Volume | 14Issue:2 |
| Status | 已发表 |
| DOI | 10.3390/mi14020239 |
| Abstract | Spectrum resources are becoming increasingly crowded, and the isolation interval between different systems is getting smaller and smaller. This puts forward higher requirements for the duplexer. The duplexer is an important part of the radio frequency front end, and the isolation requirement is becoming higher. This paper presents a phase canceling circuit to improve the performance of the duplexer to meet the requirement of the communication system for isolation. A phase canceling circuit is an effective method to enhance the isolation through use of a surface acoustic wave (SAW) on-chip circuit. It contains a duplexer and a branch. The branch is designed for diminishing the leakage signal of the duplexer. Compared with the leakage signal, the branch consists of two attenuators and a phase shifter to generate a signal which has equal extent and reverse phase. As a result, this method is capable of increasing the isolation of band 5 by 12 dB in the downlink frequency. Meanwhile, it neither affects other factors, such as insertion loss or return loss, nor increases the size of the chip. The phase canceling circuit is expected to promote the quality of duplexer to satisfy the strict requirements in 4G and 5G systems. © 2023 by the authors. |
| Keyword | 5G mobile communication systems Acoustic surface wave devices Communications systems Duplexers Isolation Leakage signals On-chip circuits Performance Phase-shifters Radio frequency front end Spectra's Surface acoustic waves |
| URL | 查看原文 |
| Indexed By | EI ; SCOPUS ; SCI |
| Language | 英语 |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Instruments & Instrumentation ; Physics |
| WOS Subject | Chemistry, Analytical ; Nanoscience & Nanotechnology ; Instruments & Instrumentation ; Physics, Applied |
| WOS ID | WOS:000940595700001 |
| Publisher | MDPI |
| EI Accession Number | 20230913657256 |
| EI Keywords | Acoustic waves |
| EI Classification Number | 716.3 Radio Systems and Equipment ; 751.1 Acoustic Waves ; 752.1 Acoustic Devices |
| Original Document Type | Journal article (JA) |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/284267 |
| Collection | 信息科学与技术学院_硕士生 信息科学与技术学院_PI研究组_吴涛组 |
| Corresponding Author | Wu, Tao |
| Affiliation | 1.Shanghai Univ, Sch Microelect, Shanghai 200444, Peoples R China 2.Changzhou Bowo Microelect Co Ltd, Changzhou 213000, Peoples R China 3.ShanghaiTech Univ, Sch Informat Sci & Technol, Shanghai 201210, Peoples R China |
| Corresponding Author Affilication | School of Information Science and Technology |
| Recommended Citation GB/T 7714 | Tao, Jianbin,Tang, Zhengjie,Zou, Yali,et al. A Phase Canceling Technique to Improve SAW Duplexer Isolation[J]. MICROMACHINES,2023,14(2). |
| APA | Tao, Jianbin.,Tang, Zhengjie.,Zou, Yali.,Wang, Bin.,Li, Jiawei.,...&Wu, Tao.(2023).A Phase Canceling Technique to Improve SAW Duplexer Isolation.MICROMACHINES,14(2). |
| MLA | Tao, Jianbin,et al."A Phase Canceling Technique to Improve SAW Duplexer Isolation".MICROMACHINES 14.2(2023). |
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