Sang‐Woong Yoon, Chang-Ho Lee, Min-Gun Kim, Chung-Hwan Kim, Jaejin Lee, J. Laskar, Songcheol Hong
{"title":"A compact GaAs MESFET-based push-push oscillator MMIC using differential topology with low phase-noise performance","authors":"Sang‐Woong Yoon, Chang-Ho Lee, Min-Gun Kim, Chung-Hwan Kim, Jaejin Lee, J. Laskar, Songcheol Hong","doi":"10.1109/GAAS.2001.964342","DOIUrl":null,"url":null,"abstract":"We present a fully integrated 6.7 GHz push-push oscillator MMIC using a cross-coupled differential topology with a capacitive coupling feedback in a commercial GaAs MESFET process. The push-push oscillator shows phase noise of -118.83 dBc/Hz at an offset frequency of 600 kHz with a 3.3 V supply voltage. This low phase-noise performance is comparable to, or better than, the best reported results of 5/spl sim/6 GHz-band oscillators implemented in CMOS and SiGe HBT processes. A 6.4 GHz fundamental oscillator MMIC using the cross-coupled differential topology was also fabricated. The measured phase-noise of the fundamental oscillator is -108 dBc/Hz at an offset frequency of 600 kHz. In addition to the low phase-noise, the push-push oscillator in this paper occupies a compact area of 480/spl times/500 /spl mu/m/sup 2/. To our knowledge, it is the first implementation of a GaAs MESFET-based push-push oscillator MMIC using the cross-coupled differential topology with capacitive coupling feedback. This work is also the first report that shows the low phase-noise performance of the push-push oscillator using the differential topology as compared with that of the fundamental oscillator.","PeriodicalId":269944,"journal":{"name":"GaAs IC Symposium. IEEE Gallium Arsenide Integrated Circuit Symposium. 23rd Annual Technical Digest 2001 (Cat. No.01CH37191)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2001-10-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"GaAs IC Symposium. IEEE Gallium Arsenide Integrated Circuit Symposium. 23rd Annual Technical Digest 2001 (Cat. No.01CH37191)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/GAAS.2001.964342","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 5
Abstract
We present a fully integrated 6.7 GHz push-push oscillator MMIC using a cross-coupled differential topology with a capacitive coupling feedback in a commercial GaAs MESFET process. The push-push oscillator shows phase noise of -118.83 dBc/Hz at an offset frequency of 600 kHz with a 3.3 V supply voltage. This low phase-noise performance is comparable to, or better than, the best reported results of 5/spl sim/6 GHz-band oscillators implemented in CMOS and SiGe HBT processes. A 6.4 GHz fundamental oscillator MMIC using the cross-coupled differential topology was also fabricated. The measured phase-noise of the fundamental oscillator is -108 dBc/Hz at an offset frequency of 600 kHz. In addition to the low phase-noise, the push-push oscillator in this paper occupies a compact area of 480/spl times/500 /spl mu/m/sup 2/. To our knowledge, it is the first implementation of a GaAs MESFET-based push-push oscillator MMIC using the cross-coupled differential topology with capacitive coupling feedback. This work is also the first report that shows the low phase-noise performance of the push-push oscillator using the differential topology as compared with that of the fundamental oscillator.