300-1500 MHz Broadband LNA for the Canadian Hydrogen Observatory and Radio-transient Detector

dc.contributor.advisorBelostotski, Leonid
dc.contributor.authorLai, Carlson
dc.contributor.committeememberNielsen, Jorgen
dc.contributor.committeememberAbou-Zeid, Hatem
dc.date2022-11
dc.date.accessioned2022-09-27T15:52:39Z
dc.date.available2022-09-27T15:52:39Z
dc.date.issued2022-09
dc.description.abstractA next generation radio telescope, CHORD is currently being designed and prototyped. This new radio telescope is designed to supersede the CHIME telescope in area, noise and bandwidth. The specifications for this telescope require a bandwidth between 300 MHz to 1500 MHz, along with the lowest possible noise figure at room temperature. To achieve this, a new LNA topology is proposed using a capacitively loaded source degenerated amplifier with a matching network. This topology allows the designer to control the optimum source impedance for low noise independently from the input impedance, such that the two can be conjugates of each other. A matching network is then proposed to approximate the optimum source impedance for broadband power and noise matching. The LNA was designed and measured, with S11 below -8 dB between 320 MHz to 1580 MHz, S21 of 32 dB +/- 1.2 dB, IP1dB greater than -37 dBm, and IIP3 greater than -20 dBm. Noise parameters were measured, with the LNA achieving sub-20 K noise temperatures between 500 MHz to 1400 MHz.en_US
dc.identifier.citationLai, C. (2022). 300-1500 MHz broadband LNA for the Canadian Hydrogen Observatory and Radio-transient Detector (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.en_US
dc.identifier.urihttp://hdl.handle.net/1880/115298
dc.identifier.urihttps://dx.doi.org/10.11575/PRISM/40304
dc.language.isoengen_US
dc.publisher.facultySchulich School of Engineeringen_US
dc.publisher.institutionUniversity of Calgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.en_US
dc.subjectLNAen_US
dc.subjectMicrowave Circuitsen_US
dc.subjectRadio astronomyen_US
dc.subject.classificationElectricity and Magnetismen_US
dc.subject.classificationEngineering--Electronics and Electricalen_US
dc.title300-1500 MHz Broadband LNA for the Canadian Hydrogen Observatory and Radio-transient Detectoren_US
dc.typemaster thesisen_US
thesis.degree.disciplineEngineering – Electrical & Computeren_US
thesis.degree.grantorUniversity of Calgaryen_US
thesis.degree.nameMaster of Science (MSc)en_US
ucalgary.item.requestcopytrueen_US
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