Non-Planar Adaptive Antenna Arrays for GPS Receivers

Gupta, I.J.; Lee, T.-H; Griffith, K.A.; Slick, Chad; Reddy, C. J.; Bailey, M. C.; DeCarlo, D.

doi:10.1109/map.2010.5687504

Cited by 25 publications

(13 citation statements)

References 2 publications

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“…All elements in this array are also CP TM11 disk patches. This spherical array is known for its better null‐steering performance at lower elevation angles . Note that both arrays of Figure have the same diameter and number of degrees of freedom, as the proposed array of Figure .…”

Section: Array Null Steering Performancementioning

confidence: 99%

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A CRPA array with dual‐mode patch antenna elements for GPS applications

Rezazadeh

Shafai

2018

Micro & Optical Tech Letters

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A controlled reception pattern antenna (CRPA) array consisting of three dual‐mode microstrip patch antennas is designed and investigated for GPS interference mitigation applications. Each dual‐mode element consists of a dominant‐mode disk patch antenna encircled by a dual‐polarized shorted ring patch antenna. The measured input and radiation parameters of a prototype array are presented. The null‐steering performance of the array is demonstrated using a simple adaptive algorithm and is shown to be superior to the conventional planar arrays.

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Section: Array Null Steering Performancementioning

confidence: 99%

“…Some techniques have been proposed to address this issue. Nonplanar arrays of patch antennas have been shown to perform better than planar arrays but are bulky and not low profile. In Ref.…”

Section: Introductionmentioning

confidence: 99%

A CRPA array with dual‐mode patch antenna elements for GPS applications

Rezazadeh

Shafai

2018

Micro & Optical Tech Letters

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“…Thus the gain will become lower and the direction will become bad [1,2]. Some people put forward that same patch antennas can be used to form an antenna array that can improve the gain.…”

Section: Introductionmentioning

confidence: 99%

“…Some people put forward that same patch antennas can be used to form an antenna array that can improve the gain. However, it will also increase the difficulties in designing so as to increase the cost of production [2][3][4]. As a special structure with negative magnetic permeability or negative permittivity, the metamaterial have some special effects on antenna performance [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Analysis and realization of improving the patch antenna gain based on metamaterials

Yang

Sun

Zuo

et al. 2014

JAE

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To improve the gain of microstrip antenna, it can be realized by artificially introducing metamaterials into microstrip antenna. This paper introduces four kinds of metamaterial structures, such as dendritic-type, cross-type, s-type and h-type. All can improve the antenna performance in varying degrees. Based on the analysis and comparison of the simulated results, we found that the dendritic-type metamaterial microstrip antenna has the most remarkable influence on increasing of the antenna gain with the bandwidth basically unchanged. At last, the simulated results were compared with the measured results. The good agreements can be observed.

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“…Similar to the GPS receivers, the Galileo receivers need some anti-jamming mechanism to assure the required levels of quality of services (QoS) [1]. Although many anti-jamming techniques have been proposed for GPS receivers, including space domain [2]- [4], time domain [5]- [9], and frequency domain [10]- [13], and time-frequency domain [14], [15], few researches have been done for Galileo receivers [16]. Moreover, many previous works assumed the jammers are in the continuous-wave interference (CWI) forms.…”

Section: Introductionmentioning

confidence: 99%

Impact of Jamming Attack on Galileo Receivers

Chien

Chen

2014

2014 Tenth International Conference on Intelligent Information Hiding and Multimedia Signal Processing

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This paper surveys the impact of different jammers on the Galileo receivers in L1 band. Specifically, we exam the relationship of the sweep-rate of chirp-style jammers with the detection probability when acquiring a Galileo signal. The simulation results show that the relationship between the sweep-rate of the chirp jammers and the resulting impaction of the acquisition process is a non-linear function. With the C/N0 of 45 dB-Hz, the probability of successful acquisition is less than 95% when the sweep rate of the chirp jammer is about 1GHz/sec and the jamming-to-signal ratio (JSR) is above 21 dB; on the other hand, when the jammer type is of the continuous-wave interference, the Galileo receivers can tolerate the JSR of 25 dB.

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Non-Planar Adaptive Antenna Arrays for GPS Receivers

Cited by 25 publications

References 2 publications

A CRPA array with dual‐mode patch antenna elements for GPS applications

A CRPA array with dual‐mode patch antenna elements for GPS applications

Analysis and realization of improving the patch antenna gain based on metamaterials

Impact of Jamming Attack on Galileo Receivers

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