{"title":"Design of a Low-Noise and Low-Profile K-Band Downconverter Based on LTCC Technology","authors":"Weiwei Liu, Anxue Zhang, Shiqiao Zhang, Wenchao Chen","doi":"10.1049/ell2.70406","DOIUrl":null,"url":null,"abstract":"<p>This paper presents a miniaturised, lightweight K-band downconverter based on LTCC (low-temperature co-fired ceramic) technology with a noise figure (NF) of 2.1 dB. The downconverter integrates an LTCC multilayer substrate, a metal cover plate featuring fuzz button connectors, and a metallic shell. Multilayer LTCC technology enables the high-density integration and miniaturisation of components such as power dividers, striplines, and vertical transitions for the RF plane. Fuzz button connectors are employed to achieve low-loss, compact integration, effectively reducing the downconverter's noise figure. Experimental results demonstrate: port return loss better than 12 dB, single-channel gain exceeding 56.9 dB, and a noise figure below 2.1 dB. This design is compatible with low-profile satellite communication phased arrays utilising digital subarray architectures.</p>","PeriodicalId":11556,"journal":{"name":"Electronics Letters","volume":"61 1","pages":""},"PeriodicalIF":0.8000,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/ell2.70406","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Electronics Letters","FirstCategoryId":"5","ListUrlMain":"https://ietresearch.onlinelibrary.wiley.com/doi/10.1049/ell2.70406","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 paper presents a miniaturised, lightweight K-band downconverter based on LTCC (low-temperature co-fired ceramic) technology with a noise figure (NF) of 2.1 dB. The downconverter integrates an LTCC multilayer substrate, a metal cover plate featuring fuzz button connectors, and a metallic shell. Multilayer LTCC technology enables the high-density integration and miniaturisation of components such as power dividers, striplines, and vertical transitions for the RF plane. Fuzz button connectors are employed to achieve low-loss, compact integration, effectively reducing the downconverter's noise figure. Experimental results demonstrate: port return loss better than 12 dB, single-channel gain exceeding 56.9 dB, and a noise figure below 2.1 dB. This design is compatible with low-profile satellite communication phased arrays utilising digital subarray architectures.
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
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