{"title":"A miniaturized microstrip suppressing cell as an integrated HCC in class F/F−1 power amplifiers for 5G applications","authors":"Farzin Shama","doi":"10.1049/ell2.70144","DOIUrl":null,"url":null,"abstract":"<p>This study presents the design and implementation of a miniaturized suppressing cell (MSC) functioning as a low-pass filter (LPF) utilizing an interdigital shaped resonator. The MSC is engineered to effectively control harmonics in power amplifiers (PAs), particularly in applications for next-generation 5G systems. The LPF achieves a cut-off frequency of 2.21 GHz, demonstrating a sharp transition region spanning 0.6 GHz, where the attenuation transitions from −3 to −40 dB. Notably, the filter exhibits an ultra-extended rejection bandwidth, maintaining at least −20 dB from 2.8 to 29.17 GHz. The measured flat group delay further confirms the excellent passband performance of this LPF, indicating minimal signal distortion. Given the critical role of harmonic control circuits (HCCs) in enhancing the efficiency and linearity of various PA classes, including class-F and class-F<sup>−1</sup> configuration, the proposed MSC serves as a vital component in HCC designs. This advancement not only contributes to improved performance in PAs but also supports the demands of modern wireless communication systems, reinforcing the MSC's significance in high-frequency applications.</p>","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"61 1","pages":""},"PeriodicalIF":0.7000,"publicationDate":"2025-02-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70144","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electronics Letters","FirstCategoryId":"5","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1049/ell2.70144","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
This study presents the design and implementation of a miniaturized suppressing cell (MSC) functioning as a low-pass filter (LPF) utilizing an interdigital shaped resonator. The MSC is engineered to effectively control harmonics in power amplifiers (PAs), particularly in applications for next-generation 5G systems. The LPF achieves a cut-off frequency of 2.21 GHz, demonstrating a sharp transition region spanning 0.6 GHz, where the attenuation transitions from −3 to −40 dB. Notably, the filter exhibits an ultra-extended rejection bandwidth, maintaining at least −20 dB from 2.8 to 29.17 GHz. The measured flat group delay further confirms the excellent passband performance of this LPF, indicating minimal signal distortion. Given the critical role of harmonic control circuits (HCCs) in enhancing the efficiency and linearity of various PA classes, including class-F and class-F−1 configuration, the proposed MSC serves as a vital component in HCC designs. This advancement not only contributes to improved performance in PAs but also supports the demands of modern wireless communication systems, reinforcing the MSC's significance in high-frequency applications.
期刊介绍:
Electronics Letters is an internationally renowned peer-reviewed rapid-communication journal that publishes short original research papers every two weeks. Its broad and interdisciplinary scope covers the latest developments in all electronic engineering related fields including communication, biomedical, optical and device technologies. Electronics Letters also provides further insight into some of the latest developments through special features and interviews.
Scope
As a journal at the forefront of its field, Electronics Letters publishes papers covering all themes of electronic and electrical engineering. The major themes of the journal are listed below.
Antennas and Propagation
Biomedical and Bioinspired Technologies, Signal Processing and Applications
Control Engineering
Electromagnetism: Theory, Materials and Devices
Electronic Circuits and Systems
Image, Video and Vision Processing and Applications
Information, Computing and Communications
Instrumentation and Measurement
Microwave Technology
Optical Communications
Photonics and Opto-Electronics
Power Electronics, Energy and Sustainability
Radar, Sonar and Navigation
Semiconductor Technology
Signal Processing
MIMO