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Low Noise at Low Cost for Large Radio Astronomy Arrays
Low Noise at Low Cost for Large Radio Astronomy Arrays
상세정보
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202104756
- ISBN
- 9798290653556
- DDC
- 620
- 서명/저자
- Low Noise at Low Cost for Large Radio Astronomy Arrays
- 발행사항
- [Sl] : California Institute of Technology, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 148 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-01, Section: B.
- 주기사항
- Advisor: Hallinan, Gregg;Padin, Steve;Ravi, Vikram.
- 학위논문주기
- Thesis (Ph.D.)--California Institute of Technology, 2025.
- 초록/해제
- 요약The 2020s is the decade of survey instruments in astronomy. Radio astronomy is no exception, with Caltech's proposed DSA-2000 being the most powerful radio interferometer in the world, costing much less than competing instruments. Key to this achievement are two core breakthroughs: a completely ambient-temperature receiver and a "radio camera" backend that images the sky in real time. DSA-2000 will have record-breaking survey speed and sensitivity, enabled by these two key breakthroughs, giving astronomers all over the world open access to exquisite all-sky maps to enable the discovery of billions of new radio sources, precise timing of pulsars, and localization of fast radio bursts. The array will produce enough data to keep astronomers busy for a century.In this thesis, we discuss the development of one of the key breakthroughs, the ambient-temperature receiver. Specifically, we focus on the design, testing, and implementation of the wideband, ambient-temperature low noise amplifier. We cover the design from analytic first principles through precision measurement of its performance. We follow this with a discussion of the design and implementation of the analog signal path, including a high performance, RF over fiber link. Finally, we discuss the Galactic Radio Explorer (GReX) instrument, designed as a global experiment probing the brightest radio transients in the local universe.
- 일반주제명
- Receivers & amplifiers
- 일반주제명
- Telescopes
- 일반주제명
- Astronomers
- 일반주제명
- Low temperature physics
- 일반주제명
- Interferometry
- 일반주제명
- Lasers
- 일반주제명
- Power
- 일반주제명
- Observatories
- 일반주제명
- Antennas
- 일반주제명
- Radio astronomy
- 일반주제명
- Design
- 일반주제명
- Aperture
- 일반주제명
- Transistors
- 기타저자
- California Institute of Technology Engineering and Applied Science
- 기본자료저록
- Dissertations Abstracts International. 87-01B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
008260126s2025 us c eng d■001000017358817
■00520260202104756
■006m o d
■007cr#unu||||||||
■020 ▼a9798290653556
■035 ▼a(MiAaPQ)AAI32151384
■035 ▼a(MiAaPQ)Caltech17366
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a620
■1001 ▼aShila, Kiran Arik.
■24510▼aLow Noise at Low Cost for Large Radio Astronomy Arrays
■260 ▼a[Sl]▼bCalifornia Institute of Technology▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a148 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-01, Section: B.
■500 ▼aAdvisor: Hallinan, Gregg;Padin, Steve;Ravi, Vikram.
■5021 ▼aThesis (Ph.D.)--California Institute of Technology, 2025.
■520 ▼aThe 2020s is the decade of survey instruments in astronomy. Radio astronomy is no exception, with Caltech's proposed DSA-2000 being the most powerful radio interferometer in the world, costing much less than competing instruments. Key to this achievement are two core breakthroughs: a completely ambient-temperature receiver and a "radio camera" backend that images the sky in real time. DSA-2000 will have record-breaking survey speed and sensitivity, enabled by these two key breakthroughs, giving astronomers all over the world open access to exquisite all-sky maps to enable the discovery of billions of new radio sources, precise timing of pulsars, and localization of fast radio bursts. The array will produce enough data to keep astronomers busy for a century.In this thesis, we discuss the development of one of the key breakthroughs, the ambient-temperature receiver. Specifically, we focus on the design, testing, and implementation of the wideband, ambient-temperature low noise amplifier. We cover the design from analytic first principles through precision measurement of its performance. We follow this with a discussion of the design and implementation of the analog signal path, including a high performance, RF over fiber link. Finally, we discuss the Galactic Radio Explorer (GReX) instrument, designed as a global experiment probing the brightest radio transients in the local universe.
■590 ▼aSchool code: 0037.
■650 4▼aReceivers & amplifiers
■650 4▼aTelescopes
■650 4▼aAstronomers
■650 4▼aLow temperature physics
■650 4▼aInterferometry
■650 4▼aLasers
■650 4▼aPower
■650 4▼aObservatories
■650 4▼aAntennas
■650 4▼aRadio astronomy
■650 4▼aDesign
■650 4▼aAperture
■650 4▼aTransistors
■690 ▼a0598
■690 ▼a0389
■71020▼aCalifornia Institute of Technology▼bEngineering and Applied Science.
■7730 ▼tDissertations Abstracts International▼g87-01B.
■790 ▼a0037
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358817▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
