{"title":"A beam-scanning architecture using A 6-GHz array of four coupled differential VCOs for automotive communications","authors":"D. Cordeau, J. Paillot","doi":"10.1109/ECAI.2013.6636155","DOIUrl":null,"url":null,"abstract":"This paper presents the design and the implementation of a fully monolithic coupled-Voltage Controlled Oscillators (VCOs) array, operating at 6 GHz, in 0.25 μm BICMOS SiGe process. This array is made of four LC-NMOS differential VCOs coupled through a resistive network and can be used to perform beam-scanning by controlling the relative phases of the signals applied on each element of a linear antenna array. At 2.5 V power supply voltage, and a power dissipation of only 125 mW, the coupled VCO array features a simulated phase noise of -127.3 dBc/Hz at 1 MHz frequency offset from a 6 GHz carrier, giving a simulated phase progression that is continuously variable over the range -64° <; Δφ <;64° and -116° <; Δφ <; 116°. This constant phase progression is established by slightly detuning the peripheral array elements, while maintaining mutual synchronization.","PeriodicalId":105698,"journal":{"name":"Proceedings of the International Conference on ELECTRONICS, COMPUTERS and ARTIFICIAL INTELLIGENCE - ECAI-2013","volume":"37 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2013-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the International Conference on ELECTRONICS, COMPUTERS and ARTIFICIAL INTELLIGENCE - ECAI-2013","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ECAI.2013.6636155","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
This paper presents the design and the implementation of a fully monolithic coupled-Voltage Controlled Oscillators (VCOs) array, operating at 6 GHz, in 0.25 μm BICMOS SiGe process. This array is made of four LC-NMOS differential VCOs coupled through a resistive network and can be used to perform beam-scanning by controlling the relative phases of the signals applied on each element of a linear antenna array. At 2.5 V power supply voltage, and a power dissipation of only 125 mW, the coupled VCO array features a simulated phase noise of -127.3 dBc/Hz at 1 MHz frequency offset from a 6 GHz carrier, giving a simulated phase progression that is continuously variable over the range -64° <; Δφ <;64° and -116° <; Δφ <; 116°. This constant phase progression is established by slightly detuning the peripheral array elements, while maintaining mutual synchronization.