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GPS/GNSS Antennas

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TLDR
In this article, the authors provide a current and comprehensive treatment of GPS/GNSS antennas, taking into account modernized systems and new and developing applications, and present a number of key applications, describing corresponding receiver architectures and antenna details.
Abstract
This practical resource provides a current and comprehensive treatment of GPS/GNSS antennas, taking into account modernized systems and new and developing applications. The book presents a number of key applications, describing corresponding receiver 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. Moreover, you find a discussion on new magnetic metamaterialu substrates and other dielectric substrate materials. Further, this comprehensive book presents designs for very compact GNSS antennas for personal handheld devices and automobiles.

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Citations
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Journal ArticleDOI

Desired Features of Adaptive Antenna Arrays for GNSS Receivers

TL;DR: This paper presents state-of-the-art GNSS adaptive antenna array signal processing techniques and some drawbacks of the current GNSS antenna signalprocessing techniques are discussed.
Journal ArticleDOI

GNSS Spoofing Countermeasure With a Single Rotating Antenna

TL;DR: A spoofing countermeasure based on the power measurements of a single rotating antenna, which can be implemented in a static receiver and actual experiments indicate that both the simulated and meaconing spoofing signals can be distinguished from the authentic ones.
Journal ArticleDOI

GPS Multipath Analysis Using Fresnel Zones

TL;DR: The comparison of simulated and real signal-to-noise (SNR) observations reveals a relationship between the percentage of the overlap of the Fresnel zone and reflector and the occurrence of multipath.
Journal ArticleDOI

A Compact Microstrip Patch Antenna for Civilian GPS Interference Mitigation

TL;DR: In this article, a compact microstrip patch antenna with an overall diameter of 6.4 cm (0.34 λ) at the global positioning system L1 band, capable of suppressing up to three radio frequency interferers (RFI) for civilian applications is presented.
Journal ArticleDOI

GPS code phase variations (CPV) for GNSS receiver antennas and their effect on geodetic parameters and ambiguity resolution

TL;DR: In this article, the authors show that the azimuthal and elevation-dependent code phase variations can reach maximum magnitudes of 0.2-0.3m for geodetic antennas and up to maximum values of 1.8m for small navigation antennas.
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