Design, Analysis and Measurements of Reflected Phased Array Microstrip Antennas at Ka-band, using Hollow Phasing

Trampuz, Christian; Hajian, M.; Ligthart, L.P.

doi:10.1109/eurad.2006.280272

Cited by 4 publications

(3 citation statements)

References 9 publications

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“…Loading patch with slots was found to be able to provide phase shifts that are required for designing a reflectarray [6,7]. This method is very easy in the sense that the separation distance between any two of the elements is a constant.…”

Section: Introductionmentioning

confidence: 99%

“…This method is very easy in the sense that the separation distance between any two of the elements is a constant. In [6], it was shown that a phase range about 270 • can be achieved by introducing a square hole in the middle of a rectangular patch. However, the phase range obtained is still less than the optimal phase range of 360 • and is insufficient to build a large-size reflectarray.…”

Section: Introductionmentioning

confidence: 99%

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Study of Cross-Slotted Circular Microstrip for Reflectarray Design

Ng¹,

Lim²,

Lo³

et al. 2014

PIER C

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Abstract-In this paper, a circular microstrip patch centrally etched with a cross slot is studied. The slot dimensions are varied for controlling the reflection loss and the phase range of a reflectarray. It is found that the dominant TM mode of the slotted circular patch can be easily excited, and the slot length can be varied to function as a phase-changing parameter. Cross slots with equal and unequal arms are investigated. Study shows that the slope of the S curve can be made slow-changing by increasing the slot widths simultaneously. A maximum reflection phase range of 328.68 • is achievable in the S curve. Rectangular waveguide method has been deployed for simulating and verifying the design idea. Reasonable agreement is found between the measurement and simulation.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Study of Cross-Slotted Circular Microstrip for Reflectarray Design

Ng¹,

Lim²,

Lo³

et al. 2014

PIER C

View full text Add to dashboard Cite

show abstract

“…This is due to the their compactness, light weight, and low cost production [1][2][3][4][5][6][7]. The electronically tunable MRA technology appears to be very interesting for beam scanning applications.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable scan‐beam hollow patch reflectarray antenna loaded with tunable capacitor

Hajian

Kuijpers

Buisman

et al. 2008

Micro & Optical Tech Letters

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In this article, the design concept of an active reconfigurable reflectarray antenna has been proposed and tested. The elementary radiators are hollow patch element loaded with varactor‐diode device in which the reflected phase can be varied. This phase alteration is based on the variation of the diode capacitance which can be achieved by varying the biasing voltage of the active varactor device. By activating these varactor devices, the phase of each antenna element in the array configuration can be adopted dynamically, and consequently, its radiation beam direction can be reconfigured. The advantage of the MEMS switches is the complexity of the integration and continuing beam scanning capability. The reflectarray incorporating active elements has been built and tested at 6.0 GHz. Narrow band multifrequency shared aperture is demonstrated theoretically and experimentally. The performance of the proposed active antenna is excellent, which pioneers the design of arbitrarily reconfigurable antennas. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 367–374, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24050

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W-band beam-steerable MEMS-based reflectarray

Montori

Chiuppesi

Farinelli

et al. 2011

Int. J. Microw. Wireless Technol.

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This paper presents recent advances on reconfigurable reflectarrays at the University of Perugia. In particular, the activities carried out in the framework of the FP7 project ARASCOM (“MEMS and Liquid Crystal based” Agile Reflectarray Antennas for Security and COMmunication). As for ARASCOM outcomes, the purpose of the project is the design of a very large reconfigurable reflectarray controlled with micro-electro-mechanical systems (MEMS) for mm-wave imaging system at 76.5 GHz. A system with sufficient resolution to detect concealed weapons impose challenging requirements on the antenna, which shall be made of hundreds of thousands elements. The problem has been addressed by exploiting some innovative solutions and architectures that will be described in this document. In particular, the dimensioning of the reflectarray, the proposed 1-bit geometry of elementary cell, and the innovative biasing control architecture are reported together with the MEMS design and fabrication and the experimental results of a demonstrating board that validated the adopted procedure.

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Design, Analysis and Measurements of Reflected Phased Array Microstrip Antennas at Ka-band, using Hollow Phasing

Cited by 4 publications

References 9 publications

Study of Cross-Slotted Circular Microstrip for Reflectarray Design

Study of Cross-Slotted Circular Microstrip for Reflectarray Design

Reconfigurable scan‐beam hollow patch reflectarray antenna loaded with tunable capacitor

W-band beam-steerable MEMS-based reflectarray

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