A novel reflectarray for smart X-band satellite antenna

Dumon, P.; Apert, C.; Belot, Daniel; Dousset, T.; Renard, Christian

doi:10.1109/aps.2007.4396891

Cited by 3 publications

(1 citation statement)

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“…However, in many applications it is desirable to synthesize the beam pattern adaptively, sparking considerable interest in electronically scanned reflectarrays. Designs employing semiconductor devices including varactor diodes [2]- [4], p-i-n diode switches [5], [6], and combinations of both [7] have been proposed. Microelectromechanical systems (MEMS)-based designs have also been explored recently [8], [9].…”

Section: Introductionmentioning

confidence: 99%

An Electronically Tunable Single-Layer Reflectarray Antenna Element With Improved Bandwidth

Liu

Hum

2010

Antennas Wirel. Propag. Lett.

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This letter presents a varactor diode-tuned reflectarray element that achieves an improved element phase bandwidth relative to designs that employ a single resonance for phase tuning. This is accomplished by introducing two resonances in the element while maintaining a single-layer structure. Simulation results based on full-wave simulations compare favorably to experimental measurements inside a waveguide. The unit cell exhibits over 380 of phase agility, 3.5 dB of peak cell loss, and a 2.4% phase bandwidth at 5.4 GHz. In addition, it has the attractive features of using only a single control voltage as well as having a quasi-linear phase versus voltage characteristic.

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Section: Introductionmentioning

confidence: 99%

An Electronically Tunable Single-Layer Reflectarray Antenna Element With Improved Bandwidth

Liu

Hum

2010

Antennas Wirel. Propag. Lett.

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Potentialities of reflector antennas with reflectarray feeds for reconfigurable coverage

Menudier¹,

Koleck²

2009

2009 IEEE Antennas and Propagation Society International Symposium

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International audienceConclusion The different results obtained with this antenna concept show some interesting potentialities. Indeed, directivities above 34 dB can be obtained on different shaped coverages without too much complexity for the reflectarray design and with an interesting compactness gain compared to classical dual reflector antennas. Moreover, the number of cells can be limited to a value below 2000 thanks to the reflector whereas more elements would have been necessary with a single reflectarray. This reduction is an important fact for the active cells consumption and manufacture. Another interest of this solution is the versatility of the active reflectarray panel. Once the optimized phase shifts have been synthesized, the panel has just to be electronically driven. A combination of several elementary panels can also be foreseen for versatility and manufacture easiness, which is contributing to a cost reduction. Other works on this concept are currently led to improve the performances and to afford flexibility on more than two coverages with a reduced cell numbers

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Sub-Reflectarrays Performances for Reconfigurable Coverages

Menudier

Koleck

2012

IEEE Trans. Antennas Propagat.

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A novel reflectarray for smart X-band satellite antenna

Cited by 3 publications

References 0 publications

An Electronically Tunable Single-Layer Reflectarray Antenna Element With Improved Bandwidth

An Electronically Tunable Single-Layer Reflectarray Antenna Element With Improved Bandwidth

Potentialities of reflector antennas with reflectarray feeds for reconfigurable coverage

Sub-Reflectarrays Performances for Reconfigurable Coverages

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