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出版Artech House, 2012-10-31
主題Technology & Engineering / ElectricalTechnology & Engineering / Electronics / GeneralTransportation / Navigation
ISBN16969315099781696931502
URLhttp://books.google.com.hk/books?id=9-rGMAEACAAJ&hl=&source=gbs_api
註釋This practical resource offers you the newest and most comprehensive treatment available of GPS/GNSS antennas, taking into account the requirements of modernized systems and recent and developing applications. The book considers a number of key applications and describes corresponding architectures and antenna details. You find important discussions on antenna characteristics, including theory of operation, gain, bandwidth, polarization, phase center, mutual coupling effects, and integration with active components. Moreover, you get expert guidance on the design of adaptive arrays and signal processing techniques used to mitigate interference such as jamming. Addressing critical GNSS antenna high precision requirements, this in-depth book explains the relationships between antenna gain, satellite visibility, geometric dilution of precision, and the carrier-to-noise density ratio. The book delineates requirements for both dual-band and tri-band antennas. You get detailed coverage of a wide range of antenna designs, including microstrip patch, quadrafilar helix, axial mode helix, spiral, inverted L, and planar inverted F antennas. Included is a discussion on new magnetic "metamaterial" substrates and other dielectric substrate materials. Further, this comprehensive book presents designs for very compact GNSS antennas for personal handheld devices and automobiles.