Antenna Design Considerations for the Advanced Extravehicular Mobility Unit
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Antenna Design Considerations for the Advanced Extravehicular Mobility Unit

Antenna Design Considerations for the Advanced Extravehicular Mobility Unit


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About the Book

NASA is designing an Advanced Extravehicular Mobility Unit (AEMU)to support future manned missions beyond low-Earth orbit (LEO). A key component of the AEMU is the communications assembly that allows for the wireless transfer of voice, video, and suit telemetry. The Extravehicular Mobility Unit (EMU) currently used on the International Space Station (ISS) contains a radio system with a single omni-directional resonant cavity antenna operating slightly above 400 MHz capable of transmitting and receiving data at a rate of about 125 kbps. Recent wireless communications architectures are calling for the inclusion of commercial wireless standards such as 802.11 that operate in higher frequency bands at much higher data rates. The current AEMU radio design supports a 400 MHz band for low-rate mission-critical data and a high-rate band based on commercial wireless local area network (WLAN) technology to support video, communication with non-extravehicular activity (EVA) assets such as wireless sensors and robotic assistants, and a redundant path for mission-critical EVA data. This paper recommends the replacement of the existing EMU antenna with a new antenna that maintains the performance characteristics of the current antenna but with lower weight and volume footprints. NASA has funded several firms to develop such an antenna over the past few years, and the most promising designs are variations on the basic patch antenna. This antenna technology at UHF is considered by the authors to be mature and ready for infusion into NASA AEMU technology development programs. Bakula, Casey J. and Theofylaktos, Onoufrios Glenn Research Center ANTENNA DESIGN; OMNIDIRECTIONAL ANTENNAS; EXTRAVEHICULAR MOBILITY UNITS; PATCH ANTENNAS; MIMO (CONTROL SYSTEMS); TELECOMMUNICATION; RADIATION SHIELDING; SPACE EXPLORATION; MANNED SPACE FLIGHT; DESIGN ANALYSIS; WEIGHT REDUCTION; PRODUCT DEVELOPMENT


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Product Details
  • ISBN-13: 9781719400329
  • Publisher: Createspace Independent Publishing Platform
  • Publisher Imprint: Createspace Independent Publishing Platform
  • Height: 279 mm
  • No of Pages: 26
  • Spine Width: 1 mm
  • Width: 216 mm
  • ISBN-10: 1719400326
  • Publisher Date: 22 May 2018
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 86 gr


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