A High-Sensitivity Cryogenic Radio Receiver: Design, Performance and Polarization Analysis

A High-Sensitivity Cryogenic Radio Receiver: Design, Performance and Polarization Analysis | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article A High-Sensitivity Cryogenic Radio Receiver: Design, Performance and Polarization Analysis Babak Mohammadian, Mark McCulloch, Valerio Gilles, Shahram Amiri, and 1 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-3823968/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Large reflector antennas are subjected to testing for calibration accuracy and precision, ensuring signal reception sensitivity and consistent performance across an extended frequency range. In this paper, we introduce a cryogenic radio receiver which is placed on a 5.3 m reflector with a gain of 60.19 dB. This antenna serves as the reference antenna for holographic calibration measurements with the measured G/Tsys ~42 dB/K. The receiver provides a bandwidth of 2 GHz (21-23 GHz), the receiver's noise temperature is 19.55, and The polarization conversion yields an Axial Ratio (AR) of less than 1.3 dB. Astrophysics and Cosmology Cryogenic radio receiver Holographic calibration G/Tsys Axial Ratio Polarization conversion Full Text Additional Declarations The authors declare no competing interests. Cite Share Download PDF Status: Posted Version 1 posted You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-3823968","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":264473707,"identity":"5d542af1-6ed2-4334-b1ed-7ef359cdf638","order_by":0,"name":"Babak 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