Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

The simulation and design of an on-chip superconducting millimetre filter-bank spectrometer

Robson, G., Anderson, A. J., Barry, Peter, Doyle, S. ORCID: and Karkare, K. S. 2022. The simulation and design of an on-chip superconducting millimetre filter-bank spectrometer. Journal of Low Temperature Physics 209 , pp. 493-501. 10.1007/s10909-022-02747-3

[thumbnail of Robson2022_Article_TheSimulationAndDesignOfAnOn-C.pdf]
PDF - Published Version
Available under License Creative Commons Attribution.

Download (1MB) | Preview
License URL:
License Start date: 11 June 2022


Superconducting on-chip filter banks provide a scalable, space saving solution to create imaging spectrometers at millimetre and submillimetre wavelengths. We present an easy to realise, lithographed superconducting filter design with a high tolerance to fabrication error. Using a capacitively coupled λ/2 microstrip resonator to define a narrow (λ/Δλ=300) spectral pass band, the filtered output of a given spectrometer channel directly connects to a lumped-element kinetic inductance detector. We show the tolerance analysis of our design, demonstrating <11% change in filter quality factor to any one realistic fabrication error and a full filter-bank efficiency forecast to be 50% after accounting for fabrication errors and dielectric loss tangent.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Publisher: Springer
ISSN: 0022-2291
Funders: STFC
Date of First Compliant Deposit: 24 June 2022
Date of Acceptance: 4 May 2022
Last Modified: 24 May 2023 18:32

Actions (repository staff only)

Edit Item Edit Item


Downloads per month over past year

View more statistics