# Researchers use Claude Opus 4.8 to auto-design sub-THz transmitter with EDA tools

Digest AI · Robotics & Physical AI · published 2026-10-26T04:00:00Z

Canonical: https://digestai.news/story/researchers-use-claude-opus-4-8-to-auto-design-sub-thz-transmitter-wit

## Summary

Researchers at an unnamed lab introduced **TACS-RF**, a framework where a **Claude Opus 4.8** LLM agent automates RF and mmWave module design by directly controlling industry-standard tools like Cadence Virtuoso/Spectre and Ansys HFSS. The agent designed a **240–251 GHz sub-THz transmitter** in a **90 nm SiGe BiCMOS process**, including a **60 GHz push-push Colpitts VCO**, power drivers, a frequency doubler, and a differential bowtie antenna. The final design achieved **+5.1 to +6.3 dBm** output power, **-80 to -88 dBc/Hz** phase noise at 1 MHz offset, and **361 mW** DC power consumption across an 11 GHz tuning range.

The paper describes a **semi-autonomous workflow** where the agent handles sub-block synthesis and matching networks while humans oversee parasitic extraction and EM verification. The authors frame this as a step toward **‘text-to-ASIC’** hardware design, though the work remains experimental and not yet deployed in industry tools.

## Key points

- Claude Opus 4.8 LLM agent designed a **240–251 GHz sub-THz transmitter** using EDA tools like Cadence Virtuoso/Spectre and Ansys HFSS
- Final design delivered **+5.1 to +6.3 dBm** output power and **-80 to -88 dBc/Hz** phase noise at 1 MHz offset
- Researchers call it a **‘text-to-ASIC’** prototype, but it’s not yet a commercial product or tool

## Why it matters

If scalable, AI-driven RF design could slash time and cost for high-frequency hardware, accelerating 5G/6G and mmWave innovation beyond manual EDA workflows.

## Sources

1. [TACS-RF: Tool-driven Agentic Circuit Synthesis of RF and mmWave Modules](https://arxiv.org/abs/2610.31882) (arXiv cs.AI, 2026-10-26, primary source)

## Cite

Digest AI, "Researchers use Claude Opus 4.8 to auto-design sub-THz transmitter with EDA tools", 26 October 2026, https://digestai.news/story/researchers-use-claude-opus-4-8-to-auto-design-sub-thz-transmitter-wit

---

Written by Digest AI's editorial model from the linked sources; the sources are the record. Headlines, digests and key points are written by Digest AI and may be quoted with a link to the story page. Linked articles belong to their publishers. Terms: https://digestai.news/terms#reuse
JSON: https://digestai.news/story/researchers-use-claude-opus-4-8-to-auto-design-sub-thz-transmitter-wit.json