High-Linearity Low Noise Amplifiers and Receivers for Global Positioning Systems

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dc.contributor.advisorBelostotski, Leonid
dc.contributor.authorNavaratne, Donuwan Pamira
dc.contributor.committeememberGhannouchi, Fadhel
dc.contributor.committeememberHelaoui, Mohamed
dc.contributor.committeememberYanushkevich, Svetlana
dc.contributor.committeememberBousquet, Jean-Francois
dc.date2021-11
dc.date.accessioned2021-09-08T16:28:48Z
dc.date.available2021-09-08T16:28:48Z
dc.date.issued2021-08-31
dc.description.abstractThe presence of radio frequency (RF) interference undermines the operating capability of Global Positioning Systems (GPS) receivers. To address RF interference, often GPS receivers employ surface acoustic wave (SAW) filters and in certain cases cavity filters. But even when these high-quality filters are present in the receiver chain, GPS receivers are still susceptible to RF interference. This is particularly the case when the receiver RF front-end is fabricated in deep-submicron CMOS technology. Improving the resilience of CMOS GPS receivers to RF interference requires an RF voltage controlled oscillator (VCO) with low-phase noise. Lowering phase noise reduces the reciprocal mixing of interference into the desired signal band. This thesis examines the feasibility of achieving low-phase noise in CMOS VCOs operating at frequencies above 10 GHz. To demonstrate the feasibility a novel method for reducing phase noise is introduced to a CMOS differential Colpitts VCO. This VCO is designed in simulation and fabricated in 65 nm CMOS technology as part of a highly-linear low-noise GPS receiver (HLR). The 65 nm CMOS VCO achieves a phase noise of -117.52 dBc/Hz an offset frequency of 1 MHz from the 12.6169 GHz carrier frequency while consuming 24 mW of DC power and the Figure of Merit is 185.7 dBc/Hz. The VCO frequency has continuous tuning from 12.516 GHz to 13.7 GHz. In addition, the 65 nm CMOS LNA that is part of the HLR achieves an S21 >11 dB and S11 <-10 dB at a frequency of 1.57542 GHz. The LNA input 1 dB compression point at 850 MHz and 1.7 GHz are respectively -6.5 dBm and -3.5 dBm with a 1.2 V DC supply voltage.en_US
dc.identifier.citationNavaratne, D. P. (2021). High-Linearity Low Noise Amplifiers and Receivers for Global Positioning Systems (Doctoral thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/39171
dc.identifier.urihttp://hdl.handle.net/1880/113832
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.subjectPhase noiseen_US
dc.subjectVoltage Controlled Oscillatoren_US
dc.subjectColpitts Oscillatoren_US
dc.subjectGPSen_US
dc.subjectLNAen_US
dc.subjectESD Protectionen_US
dc.subject.classificationEngineering--Electronics and Electricalen_US
dc.titleHigh-Linearity Low Noise Amplifiers and Receivers for Global Positioning Systemsen_US
dc.typedoctoral thesisen_US
thesis.degree.disciplineEngineering – Electrical & Computeren_US
thesis.degree.grantorUniversity of Calgaryen_US
thesis.degree.nameDoctor of Philosophy (PhD)en_US
ucalgary.item.requestcopytrueen_US
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