2 posts tagged with "hardware"

Designing a phased array transmitter for space is not just a matter of getting the RF circuitry right.

Architecture selection, signal chain calibration, PA linearization, thermal reliability, radiation hardening — every layer involves trade-offs, and every decision influences the next. This post is drawn from my work on the XT-144 system design and measurement during my time at the RFVLSI Lab at NCTU and at Tron Future Tech. The goal is to connect the logic behind each of those decisions.

設計一個 800 Mbps、X-band 的 LEO 衛星傳輸器，最難的部分不是 RF 電路本身——而是量測完之後，面對一個歪七扭八的星座圖，你知道問題在哪嗎？

這篇文章整理自交通大學電子所謝書超的碩士論文，記錄了一套 Zero-IF X-band 傳輸器從「星座點一團亂」到「EVM 達標通過 SEM」的完整校正歷程。有些眉角，教科書上找不到。