---
title: "What are the relevant microwave losses in the QCage?"
date: "2024-04-22T17:06:42+00:00"
modified: "2024-04-22T17:12:26+00:00"
url: "https://www.quantum-machines.co/faq/what-are-the-relevant-microwave-losses-in-the-qcage/"
description: "The overall loss has been verified from open-ended reflection measurements to be less than 3 dB to 20 GHz."
---

# What are the relevant microwave losses in the QCage?

The overall loss has been verified from open-ended reflection measurements to be less than 3 dB to 20 GHz. We have made the following budget to account for the different sources of loss:

- Cable loss ≈ 1.4 dB (product data)
- Connector loss ≈ 0.2 dB (product data)
- Sample board loss, less than 1 dB (combined connector-to-line matching and bulk dielectric losses)

Note that additional losses will be introduced from wire bonding and matching to the on-chip transmission line circuit.