About RF Forum

RF Forum (rfforum.com) is an independent, non-commercial online community for engineers, researchers and students working on radio-frequency and microwave technology. It is an international forum: English is the primary language, and a dedicated Chinese Corner welcomes discussion in Chinese.

What we discuss

• RF Design & Circuits — Circuit design, matching, layout, oscillators and synthesizers
• RF-over-Fiber & Microwave Photonics — Analog optical links, RoF/RFoF, photonic signal generation and processing
• Antennas & Propagation — Antenna design, arrays, measurements, path loss and channel models
• EM Simulation — Full-wave and circuit simulation: HFSS, CST, ADS, openEMS and more
• Test & Measurement — VNA, spectrum and noise measurements, calibration, fixtures and de-embedding
• Components & Interconnects — Connectors, cables, passives, filters, PCB materials and transmission lines
• PA / LNA / Mixers — Power amplifiers, low-noise amplifiers, mixers, linearity and DPD
• Wireless & 5G/6G/Satcom — Cellular, Wi-Fi, satellite, radar and link budgets
• Learning & Careers — Study paths, books, interviews and career questions
• 中文交流 Chinese Corner — 用中文讨论射频与微波技术 · Discussion in Chinese

Our principles

• Technical, practical and respectful discussion.
• Strictly engineering topics — no political content.
• Undisclosed advertising and spam are removed; vendors are welcome to answer technical questions openly.
• Sharing knowledge freely: measurements, design notes, simulation tips and learning resources.

Questions or feedback? See the FAQ or contact us.

关于我们（简体中文）

RF Forum 是一个独立、非商业的国际射频与微波工程技术社区，面向从事射频电路、天线、电磁仿真、测试测量、微波光子与光载射频（RFoF）等方向的工程师、研究人员和学生。论坛以英文为主，欢迎在 中文交流 版块用中文讨论。本站只讨论工程技术话题。