2015
DOI: 10.1109/tap.2015.2444440
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Generalized Array Factor Approach to the Assessment of Discrete Tapered Nonuniform Leaky-Wave Antenna

Abstract: A generalization of the array factor approach of a nonuniform leaky wave antenna (LWA) is proposed for the modelling of discrete tapered LWAs. The demonstration is based on the Fourier transform of the illumination amplitude of a LWA and is thus quite general. This analysis approach can be helpful for design. When it is used in combination with classical taperization techniques, it provides an easy and powerful conception tool. The validity of the method is demonstrated with the Holey and the Honey LWAs. Taylo… Show more

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Cited by 14 publications
(7 citation statements)
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“…The GAFA is used advantageously for that task [6]. Formula (3) is slightly modified to describe non uniform case:…”
Section: Emperical Modelization Of Short Crlh Lwamentioning
confidence: 99%
See 1 more Smart Citation
“…The GAFA is used advantageously for that task [6]. Formula (3) is slightly modified to describe non uniform case:…”
Section: Emperical Modelization Of Short Crlh Lwamentioning
confidence: 99%
“…In other words, we assume here that a short CRLH LWA antenna must be considered like a tapered quasi-uniform LWA, even if it is made of identical unit cells. This is empirically shown with the use of the Generalized Array Factor Approach (GAFA) which is appropriate for such kind of LWA [6].…”
Section: Introductionmentioning
confidence: 99%
“…Oppositely, optimum focusing pattern is implemented with the tapering technology, as demonstrated in a width-tapered EH 1 -mode MSL [13]. Besides, more diverse radiation patterns are achieved by pattern synthesis technology such as fast Fourier transform [17], transmission line model [19], generalised array factor approach [20], and other analytical approaches [15,18]. As a result, desired radiation nulls are deliberately produced at certain directions by both properly tapering the illumination [14] and manipulating the effective radiation sections [18].…”
Section: Introductionmentioning
confidence: 99%
“…Moreover, unwanted high sidelobe levels are enormously suppressed by synthesising the illumination distributions [15,19]. Special distributions such as Taylor or Cosine distribution are demonstrated to be capable to generate a high directivity with extremely low sidelobe levels [16,20].…”
Section: Introductionmentioning
confidence: 99%
“…Printed leaky-wave antennas have been able to regain researchers attention during the past few years [1][2][3][4][5]. They are compact, low profile, and their radiation beam can be steered by only changing the frequency of the input signal.…”
Section: Introductionmentioning
confidence: 99%