產品介紹
此產品為 【弘燁科技】Agilent 8495A Manual Step Attenuator 手動階梯式射頻衰減器｜RF Manual Step Attenuator。
品牌為 是德/安捷倫(Keysight/Agilent/HP)，型號為 8495A。
目前頁面已整理基本產品資訊，並提供可下載之型錄或規格文件，建議可先參考下方檔案下載區。
規格
主要規格與效能（Core Specifications）
產品定位（Product Overview）
・Agilent / HP 8495A 為 Manual Step Attenuator（手動階梯式射頻衰減器）
・適用於高性能 RF / 微波量測與自動測試系統
・系列版本涵蓋 DC–4 GHz / DC–18 GHz / DC–26.5 GHz
・適用於寬頻 RF 測試架構
・< 0.03 dB（DC – 18 GHz） ・< 0.05 dB（18 – 26.5 GHz 系列型號）
✔ 確保極低 Measurement Uncertainty
✔ 提供高信賴度於 Automatic Test Systems
・Miniature Tantalum Nitride Thin-Film T-Pads
・Minimum Life：> 5 Million Cycles per Section
性能特點（Performance Features）
・High Reliability for High-Performance Test Equipment
自動化整合（Automation Integration）
可搭配下列 Driver 使用：
・HP 70611A Driver（MMS-Based Systems）
✔ 透過 HP-IB（Hewlett-Packard Interface Bus）整合自動化系統 ✔ 支援 12-Pin Viking Socket 或 Ribbon Cable Programming ✔ 可與 1 dB 與 10 dB Step Attenuators 串接擴展動態範圍
・8495A-004 – 3.5 mm
典型應用（Typical Applications）
・AI 伺服器 / HPC 射頻模組功率控制
・6G 高頻與毫米波研究應用
・LTE / NB-IoT / IoT 通訊模組測試
・Signal Generator 輸出功率控制
・研發驗證 / QA / 產線 ATE 測試系統
原廠英文說明
Attenuation repeatability is specified to be less than 0.03 dB (0.05 dB , 18-26.5 GHz) for 5 million cycles per section. This assures low measurement uncertainty and high user confidence when designed into automatic test systems. Electromechanical step attenuators offer low SWR, low insertion loss and high accuracy required by high-performance test and measurement equipment.
Precision plated leaf-spring contacts remove attenuator sections (miniature tantalum nitride thin-film T-pads on sapphire and alumina substrates) from the signal path. Unique process controls and material selection ensure unmatched life and contact repeatability. Miniature drive solenoids in the programmable models keep switching time, including settling, down to less than 20 milliseconds.
Once switched, strong permanent magnets hold the solenoids (and attenuation value) in place. Current interrupts automatically disconnect solenoid current, simplifying driver circuit design and minimizing heat dissipation. Programming is done through a 12 -pin Viking socket or optional ribbon cables with DIP plugs.
With an HP 11713A attenuator driver, 87130A attenuator driver, or an HP 70611A driver for MMS-based systems, automatic drive control is easy using the Hewlett-Packard Interface Bus (HP-IB) automated system. Quickly and conveniently connect 1 dB step and 10 dB step attenuators together to achieve greater dynamic range with 1 dB steps.