Lenses for Circular Polarization Using Planar Arrays of Rotated Passive Elements

Phillion, Rudi H.; Okoniewski, M.

doi:10.1109/tap.2011.2109694

Cited by 130 publications

(60 citation statements)

References 28 publications

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“…The input and output antenna elements can be coupled via other microwave structures, such as slots, which can be patterned to provide a specific frequency response [26], including potentially the phase shift. Additionally, phase-shifting of circularly-polarized radiation from the feed can be accomplished using element rotation [27]. Furthermore, similar to reflectarrays, array lenses can be composed of resonant scatterers that couple together to impose the required phase shift on the incident wave [28] [29].…”

Section: B Array Lens Principles and Developmentmentioning

confidence: 99%

“…Here we summarize a slightly more general formulation for RRAs [74] (the case of the lens array is available elsewhere [27]). …”

Section: Rotation Technique For Circularly-polarized Wavesmentioning

confidence: 99%

“…Fixed CP array lenses have been explored that incur the phase shift by manipulating the LP components of a CP wave [27] or by employing the element rotation technique [100]- [102]. However, to our knowledge, array lenses employing this approach have yet to be realized in reconfigurable form.…”

Section: A Related Architecture: the Array Lensmentioning

confidence: 99%

See 2 more Smart Citations

Reconfigurable Reflectarrays and Array Lenses for Dynamic Antenna Beam Control: A Review

Hum

Perruisseau‐Carrier

2014

IEEE Trans. Antennas Propagat.

779

413

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Abstract-Advances in reflectarrays and array lenses with electronic beam-forming capabilities are enabling a host of new possibilities for these high-performance, low-cost antenna architectures. This paper reviews enabling technologies and topologies of reconfigurable reflectarray and array lens designs, and surveys a range of experimental implementations and achievements that have been made in this area in recent years. The paper describes the fundamental design approaches employed in realizing reconfigurable designs, and explores advanced capabilities of these nascent architectures, such as multi-band operation, polarization manipulation, frequency agility, and amplification. Finally, the paper concludes by discussing future challenges and possibilities for these antennas.

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Section: B Array Lens Principles and Developmentmentioning

confidence: 99%

“…Here we summarize a slightly more general formulation for RRAs [74] (the case of the lens array is available elsewhere [27]). …”

Section: Rotation Technique For Circularly-polarized Wavesmentioning

confidence: 99%

See 1 more Smart Citation

Reconfigurable Reflectarrays and Array Lenses for Dynamic Antenna Beam Control: A Review

Hum

Perruisseau‐Carrier

2014

IEEE Trans. Antennas Propagat.

779

413

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show abstract

“…Later, it was found that rotating the resonators sequentially had enabled the wideband antenna array [11] to have even better CP performance. In [12], the sequential rotation technique was applied on the stacked microstrip patches, which were coupled to the other similar pair on the transmitting end through a cross slot, for designing a CP transmitarray. A similar technique was later used for designing a wide axialratio (∼ 25%) transmitarray that was able to receive linearly polarized (LP) wave from a rectangular patch and re-radiate CP wave from a rotated patch with truncated corners [13].…”

Section: Introductionmentioning

confidence: 99%

Circularly Polarized Yagi-Uda-Like Transmitarray

Chew¹,

Lim²,

Lo³

2017

PIER C

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Abstract-A novel Yagi-Uda-like transmitarray is proposed for circularly polarized (CP) operation. The element consists of multiple strips stacked in parallel for achieving broad transmission phase range. By employing the design concept for the Yagi-Uda director, the transmitarray elements are made to provide the functions of phase shifter and director simultaneously. By introducing rotational offset into the stacking strips, the element is found to be able to generate circular polarization. To demonstrate the working principle, an 8-layer unit element is simulated using the Floquet method to provide a transmission phase range of 412 • . The proposed 5 × 5 full-fledged CP transmitarray is able to produce an antenna gain of 16.2 dBi, a −1-dB bandwidth of 4%, an axial-ratio bandwidth of 7%, and an aperture efficiency of 40.4%. A simple curve-fitted design equation is also given.

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“…In recent years, a variety of techniques have been proposed by researchers to design flat lenses [1][2][3][4][5][6][7][8][9] that are based on Transformation Optics (TO) as well as other techniques. The TO approach, which is very elegant and systematic, often leads to designs based on metamaterials that can be difficult to realize because they require r and μ r values that are either less than 1, or very large, or both.…”

Section: Introductionmentioning

confidence: 99%

Flat Lens Design Using Artificially Engineered Materials

Arya¹,

Pandey²,

Mittra³

2016

PIER C

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Abstract-In this work, we present a new systematic technique for the design of a flat lens using modified commercial off-the-shelf (COTS) materials, as opposed to metamaterials (MTMs) that are often required in lens designs based on the Transformation Optics (TO) approach. While lens designs based on Ray Optics (RO) do not suffer from the drawback of having to use metamaterials, they still require dielectric materials that may not be commercially available off-the-shelf. This paper describes a systematic procedure for realizing the desired materials by modifying the COTS types, and illustrates its application with some practical examples.

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Lenses for Circular Polarization Using Planar Arrays of Rotated Passive Elements

Cited by 130 publications

References 28 publications

Reconfigurable Reflectarrays and Array Lenses for Dynamic Antenna Beam Control: A Review

Reconfigurable Reflectarrays and Array Lenses for Dynamic Antenna Beam Control: A Review

Circularly Polarized Yagi-Uda-Like Transmitarray

Flat Lens Design Using Artificially Engineered Materials

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