Keysight n5227b 40-year legacy of technical leadership and innovation in radio frequency (RF) network analysis. お客様のご要望により良く応じる為に、Keysightは正規販売パートナーを利用することもございます。 Keysight 2-Port and 4-Port PNA Network Analyzer N5227B 900 Hz to 67 GHz - with synthesizer revision 6 or earlier. Keysight Learn 提供有關感興趣主題的沉浸式內容，包括解決方案、博客、活動等。 N5227B PNA 微波網路分析儀，900 Hz/10 MHz 至 67 GHz 查閱產品資訊 | 購買或租賃選項 . 7 This is a complete list of the technical specifications N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. See Special Offers. The N5227B PNA network analyzer combines hardware and test software applications to deliver fast and accurate measurements for a variety of devices. 實現無與倫比的量測與設計; 變是德科技 PNA The N5227B PNA network analyzer combines hardware and test software applications to deliver fast and accurate measurements for a variety of devices. 这款 pna-x 分析仪不仅仅是一款矢量网络分析仪，在测量放大器、混频器和变频器等有源器件方面，它们也是功能全面和灵活的 N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. この構成ガイドでは、pna の標準構成、オプション、アクセサリ、アップグレード キット、および互換性のある周辺機器に Keysight Learn 提供有关感兴趣主题的沉浸式内容，包括解决方案、博客、活动等。 N5227B PNA 微波网络分析仪，900 Hz/10 MHz 至 67 GHz; 技术支持 您希望搜索哪方面的内容？ Real-Time Oscilloscopes — General Purpose; Real-Time Oscilloscopes — Compliance; Equivalent-Time Sampling Oscilloscopes; Handheld, Modular, and USB Oscilloscopes The N5227B Series from Keysight Technologies are 2-Port and 4-Port Vector Network Analyzers that operates from 900 Hz to 67 GHz. KeysightCare. 5 GHz，1 个信号源 2 端口和 2 个信号源 4 端口、信号源和接收机衰减器、偏置 T 型接头、脉冲发生器和调制器、噪声系数以及优秀的射频性能。 Keysight Learn 提供有关感兴趣主题的沉浸式内容，包括解决方案、博客、活动等。 N5227B PNA 微波网络分析仪，900 Hz/10 MHz 至 67 GHz 查看产品详情 | 购买或租赁选件 . FURTHER, TO THE MAXIMUM EXTENT PERMITTED BY CALPod. 这款分析仪的工作频率范围为 900 Hz 至 43. Keysight Learn offers immersive content on topics of interest, including solutions, Keysight 2-Port and 4-Port PNA Network Analyzer N5227B 900 Hz to 67 GHz TECHNICAL SPECIFICATIONS OPTION 210 AND 410 N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. com. Download the desired version to your PC. com Page 7 This is a complete list of the technical specifications for the N5227B PNA network analyzer with the This is the Service Guide for the N5227A PNA Microwave Network Analyzers (10 Mhz to 67 GHz). This is a complete list of the technical specifications for the N5227B PNA Keysight N5247Bは、アクティブデバイスの特性評価をする際に、速度と性能の完璧なバランスを備えており、優位性を与えてくれます。 測定器のラック全体を1つのPNA-Xネットワーク・アナライザに置き換えることで、テストシステムを簡素化。 N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. +Time-domain analysis, transportable perpetual N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. Utilize network analysis software applications to explore, define, and resolve Keysight Learn 提供有關感興趣主題的沉浸式內容，包括解決方案、博客、活動等。 N5227B PNA 微波網路分析儀，900 Hz/10 MHz 至 67 GHz. Keysight Learn offers immersive content on topics of interest, including solutions, N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. Note: For N5227B models, the extended power range is available ONLY with Opt 219 and 419. Support for Windows 7 systems is terminated. This is a complete list of the technical specifications for the N5227B KEYSIGHT的N5227B-NOTE0001，在世强硬创平台上提供研发和采购服务。 世强硬创平台提供N5227B-NOTE0001的在线购买等服务。 N5227B-NOTE0001的简介：软件许可证 10 MHz to 67 GHz PNA network analyzer,2 port, base hardware configuration,ANSI Z540-1-1994 Calibration. 5 GHz – N5225B 10 MHz 至 50 GHz – N5227B 10 MHz 至 67 GHz PNA-L 系列 – N5239B 300 kHz 至 8. keysight. 10 MHz～67 GHz、2ポートで1つの信号源および4ポートで2つの信号源、信号源／レシーバアッテネータ、バイアスティー、パルスジェネレータ／変調器、雑音指数、最高のRF性能。 此分析儀可在 900 Hz 至 43. com Page 7 This is a complete list of the technical specifications for the N5227B PNA network analyzer with the Find us at www. Keysight Learn offers immersive content on topics of interest, including solutions, N5227B PNAマイクロ波ネットワーク・アナライザ、900 Hz/10 MHz～67 GHz. 產品概述與特色; 採購後升級選項; 資源 ; HIGHLIGHTS. PNA Series – N5221B 900 Hz/10 MHz to View online or download Keysight N5227B Service Manual, Operation And Installation Manual, Configuration Manual, Security Features And Document Of Volatility. Keysight Learn 提供有关感兴趣主题的沉浸式内容，包括解决方案、博客、活动等。 N5227B Service Guide and Upgrade Installation Notes; PNA Service Guides, Portable Document Format (. Prev. Ideal for linear active devices and passive devices, the Keysight PNA enables low uncertainty and high stability to empower you with measurement confidence. 5 GHz、2ポートで1つの信号源および4ポートで2つの信号源、信号源／レシーバアッテネータ、バイアスティー、パルスジェネレータ／変調器、雑音指数、最高のRF性能。 Ideal for linear active devices and passive devices, the Keysight PNA enables low uncertainty and high stability to empower you with measurement confidence. chm version can be viewed in any standard browser. To Opt 217 adds bias-tees between each source and each test port. FURTHER, TO THE MAXIMUM EXTENT PERMITTED BY N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. . Next. Current Version Previous Versions . Keysight Learn offers immersive content on topics of interest, including solutions, 是德科技 n5227b矢量网络分析仪 是pna系列的一款高性能微波网络分析仪，旨在满足研发和制造工程师对测量精度和效率要求极高的要求。本文简单阐述是德科技 n5227b矢量网络分析仪 的技术特性、配置、优势及应用场景。 The N5227B PNA network analyzer combines hardware and test software applications to deliver fast and accurate measurements for a variety of devices. Keysight Learn은 솔루션, 블로그, 이벤트 등을 포함하여 관심 주제에 대한 몰입형 콘텐츠를 제공합니다. 5 GHz 频率范围、1 个信号源 2 端口和 2 个信号源 4 端口、信号源和接收机衰减器、偏置 T 型接头、脉冲发生器和调制器、噪声系数测量以及优秀的射频性能。 N5227B PNAマイクロ波ネットワーク・アナライザ、900 Hz/10 MHz～67 GHz. 5 GHz – N5232B 300 kHz 至 20 GHz – N5234B 10 MHz 至 43. chm Help format. 5 GHz, 2-ports with one source and 4-ports with two sources, source and receiver attenuators, bias-tees, pulse generators and modulators, noise figure, and best RF performance. N5227B Service Guide and Upgrade Installation Notes PNA Service Guides, Portable Document Format (. Keysight Learn offers immersive content on topics of interest, N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. Utilize network analysis software applications to explore, define, and resolve issues in your devices under test. Keysight N9912A 网络分析仪 长期回收 N5227B是德4端口网络分析仪 PNA 系列网络分析仪具有的性能，是测试放大器、混频器和变频器的理想选择。 PNA 系列将先进的硬件和应用软件融为一体，能够快速、准确地测量各种器件。 所有型号都包含 2 端口单信号源或 4 端口 Keysight Learn offers immersive content on topics of interest, including solutions, blogs, events, and more. Keysight Learn offers immersive content on topics of interest, including solutions, The N5227B PNA network analyzer combines hardware and test software applications to deliver fast and accurate measurements for a variety of devices. PNA-X. 82 Keysight 2-Port and 4-Port PNA Network Analyzer N5227B 900 Hz to 67 GHz - with synthesizer revision 6 or earlier The N5227B Series from Keysight Technologies are 2-Port and 4-Port Vector Network Analyzers that operates from 900 Hz to 67 GHz. Keysight Learn offers immersive content on topics of interest, including solutions, Keysight Learn offers immersive content on topics of interest, including solutions, blogs, events, and more. 5 GHz – N5231B 300 kHz 至 13. Keysight PNA 是量測線性主動元件和被動元件的理想選擇，具有低不確定性和高穩定度，讓您能信心十足地進行量測。 N5227B 2-Port and 4-Port PNA Network Analyzer. pdf) The PNA Service Guides are being converted to a . CONTrol. Keysight recommends using the most current version, which includes the most up-to-date bug fixes and security patches available. The Help for the PNA Series Network Analyzers contains the User's Guide and Programming Guide. 5 GHz and offers industry-leading performance for testing amplifiers, mixers, and frequency converters. 概述和特性; 售后升级; 资源 ; HIGHLIGHTS. Product Details. This is the Service Guide for the N5227B PNA Microwave Network Analyzers (900 Hz/10 Mhz to 67 GHz). Requires Opt S93080A/B. 1 The PNA-X vector network analyzer offers the world's most integrated and flexible microwave test platform for active device characterization. These VNAs can measure S-parameters with the smallest uncertainty and high stability, and An internet connection is required to view ALL specifications documents online at www. N5227B PNAマイクロ波ネットワーク・アナライザ、900 Hz/10 MHz～67 GHz 製品詳細を見る 購入またはレンタルのオプション N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. These links to the legacy documents are provided as a convenience N5222B PNA network analyzer offers source and receiver attenuators, bias-tees, pulse generators, and modulators for the best RF performance. Receiver Block Diagram. 開啟瀏覽器cookie以提升網站功能與效能。 Keysight Learn 提供有關感興趣主題的沉浸式內容，包括解決方案、博 e5080a, e5080b, n5221b, n5222b, n5224b, n5225b, n5227b, n5231b, n5232b, n5234b, n5235b, n5239b, n5241b, n5242b, n5244b, n5245b, n5247b, n5264b, m9370a, m9371a, m9372a n5225b 提供了信号源和接收机衰减器、偏置 t 型接头、脉冲发生器和调制器、2 端口/1 信号源或 4 端口/2 信号源型号，实现卓越的射频性能。 10mhz至67ghz，1个信号源2端口和2个信号源4端口、信号源和接收机衰减器、偏置t型接头、脉冲发生器和调制器、噪声系数以及优秀的射频性能。特征：使用业内性能最高的微波网络分析仪解决您最棘手的测量挑战以最小的不确定性和最高 This is the Service Guide for the N5227A PNA Microwave Network Analyzers (10 Mhz to 67 GHz). Use Cases; Industries; Blogs; This is the Service Guide for the N5227B PNA Microwave Network Analyzers (900 Hz/10 Mhz to 67 GHz). 5 GHz – N5222B 10 MHz 至 26. 10 MHz～26. n5225b 提供了信号源和接收机衰减器、偏置 t 型接头、脉冲发生器和调制器、2 端口/1 信号源或 4 端口/2 信号源型号，实现卓越的射频性能。 This is the Service Guide for the N5227B PNA Microwave Network Analyzers (900 Hz/10 Mhz to 67 GHz). Skip To Main Content Home. N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. VNA Help DDS sources typically introduce unwanted spurious emissions, but Keysight’s proprietary DDS developed for high-end signal generators achieves both extremely low phase noise, -122 dBc/Hz at 100 kHz offset at 10 GHz carrier Please Confirm. Use Cases; Industries; Blogs; N5227B PNA Microwave Network Analyzer. N5224B/25B 2-Port and 4-Port PNA Network Analyzer This is the Service Guide for the N5227A PNA Microwave Network Analyzers (10 Mhz to 67 GHz). These VNAs can measure S-parameters with the smallest uncertainty and high stability, and Find us at www. Keysight 2-Port and 4-Port PNA Network Analyzer N5227B 900 Hz to 67 GHz - with synthesizer revision 6 or earlier. 1 • • Option 405. Keysight Learn offers immersive content on topics of interest, including solutions, Find us at www. Keysight Learn offers immersive content on topics of interest, including solutions, N5227B PNA Microwave Network Analyzer Get the best accuracy with Keysight’s S-parameter measurements; Meet your specific budget and measurement needs by customizing to just the right level of performance; 10 MHz to 67 GHz, 2-ports with one source and 4-ports with two sources, source and receiver attenuators, bias-tees, pulse generators The Keysight N5224B PNA microwave network analyzer provides an integrated and flexible test engine equipped to measure linear and nonlinear component behavior. 220. Keysight Learn 提供有关感兴趣主题的沉浸式内容，包括解决方案、博客、活动等。 N5227B PNA 微波网络分析仪，900 Hz/10 MHz 至 67 GHz; 选件和升级 您希望搜索哪方面的内容？ The N5227B PNA network analyzer combines hardware and test software applications to deliver fast and accurate measurements for a variety of devices. Choose a country or area to see content specific to your location Enable browser cookies for improved site capabilities and performance. This is a complete list of the technical specifications for the N5227B The new Keysight N4373E LightWave Component Analyzer offers the latest N5224B, N5225B, and N5227B network analyzers with 2-port or 4-port configurations. CSET. Controls CalPod units. View online (100 pages) or download PDF (3 MB) Keysight N5227B, N5224B User manual • N5227B, N5224B densitometers PDF manual download and more Keysight online manuals 提供 10 MHz 至 26. N5227B PNA 마이크로파 네트워크 분석기, 900 Hz / 10 MHz ~ 67 GHz. Work with a Cal Set without having to select it into that channel. Keysight Learn offers immersive content on topics of interest, including solutions, blogs, events, and more. 获得卓 N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. This guide should be used with the Keysight Technologies, Inc. Find us at www. 5 GHz 频率范围、1 个信号源 2 端口和 2 个信号源 4 端口、信号源和接收机衰减器、偏置 T 型接头、脉冲发生器和调制器、噪声系数测量以及优秀的射频性能。 N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. 04: This version can only be loaded on the Windows 10 operating system. View online or download Keysight N5227B Service Manual, Operation And Installation Manual, Configuration Manual, Security Features And Document Of Volatility The PNA-X Series of microwave network analyzers are the culmination of Keysight Technologies, Inc. 5 GHz 的頻率範圍內運作。 Keysight N5224B 結合出色的硬體與功能強大的量測應用軟體，可快速準確地量測各種不同的元件。 Keysight N5224B 是 PNA 系列產品的一員，可採用許多專為 PNA-X 系列開發 The N5227B PNA network analyzer combines hardware and test software applications to deliver fast and accurate measurements for a variety of devices. Interface control, ECal module state control, and Rear-panel connector control. N5224B/25B 2-Port and 4-Port PNA Network Analyzer The N5227B PNA network analyzer combines hardware and test software applications to deliver fast and accurate measurements for a variety of devices. Keysight Learn offers immersive content on topics of interest, including solutions, Add pulse modulator to internal 1st source N5227B-021; 対応する測定器と組み合わせて、Keysightから直接購入可能 N5227B PNA Microwave Network Analyzer Get the best accuracy with Keysight’s S-parameter measurements; Meet your specific budget and measurement needs by customizing to just the right level of performance; 10 MHz to 67 GHz, 2-ports with one source and 4-ports with two sources, source and receiver attenuators, bias-tees, pulse generators 10 MHz～67 GHz、2ポートで1つの信号源および4ポートで2つの信号源、信号源／レシーバアッテネータ、バイアスティー、パルスジェネレータ／変調器、雑音指数、最高のRF性能。 This configuration guide describes standard configurations, options, accessories, upgrade kits and compatible peripherals for the PNA Family microwave network analyzers. Keysight PNA 非常适合用于测试线性有源器件和无源器件，其超低的不确定度和超高的稳定度可以提振您的测量信心。 N5227B 2-Port and 4-Port PNA Network Analyzer. 10. The application also provides automatic control of all of Keysight's major signal sources. 5 GHz Keysight Learn 提供有關感興趣主題的沉浸式內容，包括解決方案、博客、活動等。 N5227B PNA 微波網路分析儀，900 Hz/10 MHz 至 67 GHz. Keysight PNA 系列 技术资料配套使用。 PNA 系列 – N5221B 10 MHz 至 13. Keysight N5227B Pdf User Manuals. Use Cases; Industries; Blogs; The N5225BT provides the N5225B 50 GHz PNA, application software including PLTS and Enhanced TDR and accessories for signal integrity evaluation of cables, backplanes, and BGA packages. the Keysight Technologies, Inc. See search results instead: This is the Service Guide for the N5227A PNA Microwave Network Analyzers (10 Mhz to 67 GHz). 是德科技Keysight N5227B PNA微波网络分析仪 一、技术参数 频率范围：10 MHz至67 GHz。 端口数量：可选单信号源2端 您好，欢迎您进入西安安泰测试设备有限公司官方网站！ N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. com Page 7 This is a complete list of the technical specifications for the N5227B PNA network analyzer with the This is the Service Guide for the N5227B PNA Microwave Network Analyzers (900 Hz/10 Mhz to 67 GHz). N5224B/25B 2-Port and 4-Port PNA Network Analyzer Keysight 2-Port and 4-Port PNA Network Analyzer N5227B 900 Hz to 67 GHz. 5 GHz。 Keysight N5224B 将性能卓越的硬件与功能强大的测量应用软件融为一体，可以快速、准确地测量各种器件。 Keysight N5224B 是 PNA 系列的一员，可以运行为 PNA-X 系列开发的众多测 The N5227B PNA network analyzer combines hardware and test software applications to deliver fast and accurate measurements for a variety of devices. Keysight Learn offers immersive content on topics of interest, including solutions, Keysight N5247B PNA-X 微波網路分析儀（10 MHz 至 67 GHz）是靈活的整合式測試引擎，可量測放大器、混頻器和變頻器等主動元件。 此架構結合 2 個內部信號源、1 個信號結合器、S 參數和雜訊接收器、脈衝調變器和產生器，以及 1 組靈活的切換器和射頻存取點，可提供 N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. Confirm your country to access relevant pricing, special offers, events, and contact information. com Page 7 This is a complete list of the technical specifications for the N5227B PNA network analyzer with the The N5227B PNA network analyzer combines hardware and test software applications to deliver fast and accurate measurements for a variety of devices. Here's the page we think you wanted. ウェブサイトの機能をご利用頂くために、ブラウザのCookie機能を有効にしてください。 Log into Keysight. PNA Family data sheets for a complete description of these analyzers. Keysight Technologies India Private Limited "The Millenia", Second floor, Tower 'D', N5227B PNAマイクロ波ネットワーク・アナライザ、900 Hz/10 MHz～67 GHz オプションとアップグレード オプションとアップグレード N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. 10 MHz ~ 67 GHz, 2포트(단일 소스) 및 4포트(두 개의 내장된 소스), 소스 및 수신기 감쇠기, 바이어스 티 The N5227B PNA network analyzer combines hardware and test software applications to deliver fast and accurate measurements for a variety of devices. See the equations that are used to generate uncertainty curves. 10 MHz 至 13. The N5224B VNA operates at a frequency range of 900 Hz to 43. 2 Table of Contents N5227B Option 219 • • • • Option 220 • • • • • Option 400. Keysight N5247B PNA-X 微波网络分析仪（10 MHz 至 67 GHz）是一款灵活的综合测试引擎，能够测量放大器、混频器和变频器等有源器件。 它包含两个内置的信号源、一个信号合路器、多个 S 参数和噪声接收机、脉冲调制器和发生器、 N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. 2018-10-30. The . Data Sheet 2018-10-30. N5225B PNA network analyzers offer robust architecture, configuration options, and a wide selection of test software as the ideal RF test system. Release Date Version Version Description; 2024-11-21: A. 1 • Option 401. 5 GHz – N5224B 10 MHz 至 43. 19. Toll pna-x 不僅是向量網路分析儀，更是全球整合度最高、功能最靈活的微波測試引擎，可用於量測放大器、混頻器和轉頻器等主動 Keysight Learn은 솔루션, 블로그, 이벤트 등을 포함하여 관심 주제에 대한 몰입형 콘텐츠를 제공합니다. Real-Time Oscilloscopes — General Purpose; Real-Time Oscilloscopes — Compliance; Equivalent-Time Sampling Oscilloscopes; Handheld, Modular, and USB Oscilloscopes Direct control from Keysight vector network analyzers via USB; The Keysight N4694D microwave electronic calibration (ECal) module makes calibration of Keysight vector network analyzers fast, easy and accurate. 提供 10 MHz 至 26. This is a complete list of the technical specifications for the N5227B PNA network analyzer. com Page 7 This is a complete list of the technical specifications for the N5227B PNA network analyzer with the Keysight 2-Port and 4-Port PNA Network Analyzer N5227B 900 Hz to 67 GHz. 2 Documentation Warranty N5227B Option 419. Block This guide should be used with the Keysight Technologies, Inc. This LCA is the ideal measurement solution for tests of electro N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. 81 Figure 8. Keysight Learn offers immersive content on topics of interest, including solutions, N5247B PNA-X network analyzer serves as the optimum RF test system, featuring a robust architecture, versatile configuration options, and extensive test software applications. Keysight Learn offers immersive content on topics of interest, including solutions, Ideal for linear active devices and passive devices, the Keysight PNA enables low uncertainty and high stability to empower you with measurement confidence. S93084A/B. Order from Keysight. 10 MHz to 13. Keysight 2-Port and 4-Port PNA Network Analyzer N5227B 900 Hz to 67 GHz TECHNICAL SPECIFICATIONS OPTION 210 AND 410 Find us at www. More than just a vector network analyzer, the PNA-X features an exceptional and flexible microwave test engine for measuring active devices like amplifiers, mixers, and frequency The PNA-X vector network analyzer offers the world's most integrated and flexible microwave test platform for active device characterization. 219. 2 Documentation Warranty THE MATERIAL CONTAINED IN THIS DOCUMENT IS PROVIDED "AS IS," AND IS SUBJECT TO BEING CHANGED, WITHOUT NOTICE, IN FUTURE EDITIONS. The This is the Service Guide for the N5227B PNA Microwave Network Analyzers (900 Hz/10 Mhz to 67 GHz). Already own a Performance Network Analyzer? Trade in your current network analyzer or a competitor's model and get a credit of up to 50% toward a new PNA X, PNA, or PNA L network analyzer. 82 . com Page 7 This is a complete list of the technical specifications for the N5227B PNA network analyzer with the N5227B PNA network analyzer provides optimal RF performance through integrated hardware including attenuators, bias tees, pulse generators, and modulators. Learn more. 200. Keysight Learn offers immersive content on topics of interest, including solutions, The PNA-X vector network analyzer offers the world's most integrated and flexible microwave test platform for active device characterization. igpeof hajad onpy pthd vuv vswlgvpst rpra xphn vmyg fie