2008
DOI: 10.1109/map.2008.4653662
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A phase shifter with one tunable component for a reflectarray antenna

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Cited by 32 publications
(18 citation statements)
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“…Finally, Figure 3(c) shows a possible equivalent circuit of a reflectarray element, which differs from that shown in (b) because the elements in a traditional reflectarray are typically comparable to a wavelength. Therefore, owing to the distributed nature of the scatterer, more sophisticated circuits are needed to represent the reactance block X shown in the figure [57], or even other circuit models entirely [36] [67]. Impedance surfaces can be easily adapted to have a tunable reflection phase.…”
Section: A Tunable Resonator Approachmentioning
confidence: 99%
“…Finally, Figure 3(c) shows a possible equivalent circuit of a reflectarray element, which differs from that shown in (b) because the elements in a traditional reflectarray are typically comparable to a wavelength. Therefore, owing to the distributed nature of the scatterer, more sophisticated circuits are needed to represent the reactance block X shown in the figure [57], or even other circuit models entirely [36] [67]. Impedance surfaces can be easily adapted to have a tunable reflection phase.…”
Section: A Tunable Resonator Approachmentioning
confidence: 99%
“…Integrated with the phasing element, varactor diodes can provide the means to control the capacitance of the elements [88], [89]. A phase-agile reflectarray element using two varactor diodes that serially connect two halves of a microstrip patch was demonstrated in [90].…”
Section: Varactor Diodesmentioning
confidence: 99%
“…These considerations lead to the following three main conclusions: First, the characterization of a single reconfigurable cell placed in a conventional RWG is not sufficient to assess the performance of the cell because the array lattice thereby characterized does not, in general, correspond to a reflectarray free of grating lobes. Second, since the RWG only allows the characterization of incidence angles , it cannot be considered, in contrast with the statements of [29] and [30], as a fairly good approximation of the reflection phase for other pairs of frequency and angle, and especially for normal incidence . This remark holds for all planar elements, but was illustrated here in Fig.…”
Section: Appendix a Rwg-based Characterizationmentioning
confidence: 99%