Design of a microstrip antenna array with polarization diversity for DoA application

Gripp, T. A. de B.; Fabiani, B. M.; Silveira, E. S.; Nascimento, Daniel C.

doi:10.1109/imoc.2017.8121092

Cited by 5 publications

(2 citation statements)

References 14 publications

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“…The most widespread DoA estimation algorithms are the multiple signal classification (MUSIC) [21] and related methods. In e. g. [20], [22]- [24] their results, the so called MUSIC spectra, are used to illustrate the performance of the antenna system for specific DoAs. In e. g. [17], [25], the estimation error of the MUSIC algorithm is given to evaluate an antenna system.…”

Section: Introductionmentioning

confidence: 99%

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The Sphere as a Reference in Direction Finding Antenna Development Using Characteristic Modes

Grundmann

Manteuffel

2022

2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)

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A deterministic evaluation procedure for multi-port direction finding antennas is proposed. It is based on a direction finding uncertainty parameter, which describes how well different directions of arrival and polarizations are distinguishable. By investigating a simple antenna array, it is shown that the proposed parameter provides additional insight into the behavior of an antenna system, when compared to established methods. Moreover, since the uncertainty parameter is calculated from a set of far fields, it is applicable to port far fields as well as Characteristic Modes. This finding is utilized to derive a design guidance: Starting with a set of Characteristic Mode far fields, the angular distribution of the uncertainty is investigated to verify that no ambiguities are present. Different sets of far fields are compared and the differences regarding their direction finding behavior are visualized and explained using the uncertainty in conjunction with an estimate of the incident field. To quantify these differences, a key performance indicator is introduced that summarizes the direction finding capabilities over a selected angular region. To demonstrate the design process, a Multi-Mode Multi-Port Antenna with three uncorrelated ports is developed, manufactured and measured.

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Section: Introductionmentioning

confidence: 99%

“…where 0 is the free space wave impedance. By evaluating the far field row vector (22) in the direction ′ r the plane wave is incident from and comparing it with (20), we obtain [28]…”

mentioning

confidence: 99%