3-D helical THz antennas

Dean, Robert N.; Nordine, Paul C.; Christodoulou, C.G.

doi:10.1002/(sici)1098-2760(20000120)24:2<106::aid-mop8>3.0.co;2-k

Cited by 25 publications

(18 citation statements)

References 9 publications

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“…Dean et al [67] used a micromachining technique called laser chemical vapor deposition (LCVD) to form fibers that can be grown into complex three-dimensional structures, such as helical antenna arrays operating in the frequency range from 100 GHz to over 2 THz. Billiet and Nguyen [68] have taken the patent about fabrication of arrays of ceramic embedded micro-electromagnetic devices as well as ceramic embedded helical micro-antennas designed for use in the high GHz and THz regions at a fraction of the present cost of manufacturing of such devices and with virtually no restriction to their miniaturization.…”

Section: Discussionmentioning

confidence: 99%

“…Billiet and Nguyen [68] have taken the patent about fabrication of arrays of ceramic embedded micro-electromagnetic devices as well as ceramic embedded helical micro-antennas designed for use in the high GHz and THz regions at a fraction of the present cost of manufacturing of such devices and with virtually no restriction to their miniaturization. There exist the specified fabrication techniques used for the helical antennas with up to 40 micron diameters at most [67] and antennas with fewer diameters will be harder to be fabricated, even impossible with current technologies. It can be noted that until higher nanoscale technologies are developed in the future, it almost won't be able to construct the modeled antennas with such small dimensions and geometries.…”

Section: Discussionmentioning

confidence: 99%

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Electromagnetic Modeling of Retinal Photoreceptors

Canbay¹,

Ãnal²

2008

PIER

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Abstract-New electromagnetic models for the rods and cones that are the photoreceptors at the back of the retina are developed and simulated in order to explain the roles of dimension, geometrical structure, directional sensitivity and visual pigments of the photoreceptors in the reception of visible light. The rods and cones are modeled as uniform and quasi-tapered helical antennas, respectively. The results of the model study show that if the model antennas have the original photoreceptor cell dimensions, the frequency responses of the model antennas and the spectral sensitivities of the photoreceptors would be very close to each other. In addition, it's observed that the spectral sensitivities of L, M and S cones are broadband over the visible light spectrum, and there are secondary peaks beside main peaks in the spectral sensitivity curves of the cones, because of the conical shape of the cones. It's also observed that there is only one main peak in the spectral sensitivity curves of the rods, because of the uniform and cylindrical shape of the rods. Finally, an array of the novel modeled antennas is also discussed to be used in biomedical applications of artificial retinal photoreceptors in medicine, although the main scope is not designing artificial retinal photoreceptor prosthesis.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Electromagnetic Modeling of Retinal Photoreceptors

Canbay¹,

Ãnal²

2008

PIER

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“…In particular, threedimensional helical antennas have been fabricated with laser chemical vapour deposition for the low-terahertz range [2]. However, this fabrication process uses a serial method and is not practical for industrial scale production.…”

Section: Introductionmentioning

confidence: 99%

Self-assembled millimeter-wave helical antenna

Lee

Chen

Parameswaran

et al. 2015

2015 IEEE International Symposium on Antennas and Propagation &Amp; USNC/URSI National Radio Science Meeting

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Microfabrication techniques allow creation of antennas for mm-wave frequencies such as 60 GHz and beyond. This is because of the mechanical precision required. Another advantage of microfabrication is the ability to batch-process a large quantity of antennas, also enabling electrically large arrays. We present a usage of a unique micro-electro-mechanical systems (MEMS) fabrication process which incorporates self-assembly to achieve helical on-chip antennas. By using self-assembly, even mechanically complex helical antennas can be designed and fabricated with ease. The design method, physical prototypes, and the simulated performance of 60 GHz helical antennas are presented. This enables single-port on-chip antennas with circular polarization, or on-chip arrays for circular polarization.I.

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“…Array microstructures, which are the aim of this work, specifically, can be integrated in ultra high frequency transceivers as antenna arrays or as microsensors in biological and neural recording applications. 5 Magnetic tips arrays are also a potential application especially in the field of tissue engineering where magnetized tips can be useful in attracting the cells to a specific location on the cellular pattern. 6 Although some advanced microfabrication techniques can fabricate array microstructures but they often suffer from limitations either in the complexity of the setup, possible material range that can be used or the low fabrication rate related to long development and fabrication time.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Array Microstructures Using Serial and Parallel Localized Electrodeposition

Said¹,

Alshwawreh

Haik

2009

Int. J. Nanosci.

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To add to the development efforts in enhancing the capabilities of localized electrodeposition (LED) fabrication technique, this paper presents serial and parallel deposition algorithms to fabricate array microstructures. Such arrays can be implemented as microsensors in neural recording applications or as antenna arrays in ultra high frequency applications. Also, magnetic tip microarrays for tissue engineering can be realized. In the case of serial fabrication, an array of high aspect ratio microstructures is realized using the conventional single-tip microelectrode while implementing a multistep fabrication algorithm. In this algorithm, the fabricated microstructure elements within the array are realized one at a time. In the parallel deposition algorithm, the array is realized using a multitip array microelectrode while implementing a single step fabrication algorithm. In this algorithm, the microstructure elements within the array are fabricated simultaneously. The proposed algorithms are compared through a demonstration of fabricated array microstructures.

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3-D helical THz antennas

Cited by 25 publications

References 9 publications

Electromagnetic Modeling of Retinal Photoreceptors

Electromagnetic Modeling of Retinal Photoreceptors

Self-assembled millimeter-wave helical antenna

Fabrication of Array Microstructures Using Serial and Parallel Localized Electrodeposition

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