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Planar Lens–Based Ultra-Wideband Dielectric Rod Waveguide Antenna for Tunable THz and Sub-THz Photomixer Sources

Rivera-Lavado, Alejandro (author)
Spanish Natl Geog Inst, Yebes Observ, Yebes, Spain. ivera-Lavado, Alejandro; Garcia-Munoz, Luis-Enrique; Atia Abdalmalak, Kerlos; Santamaria-Botello, Gabriel; Segovia-Vargas, Daniel
García-Muñoz, Luis-Enrique (author)
Lioubtchenko, Dmitri (author)
KTH,Mikro- och nanosystemteknik
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Preu, Sascha (author)
Abdalmalak, Kerlos (author)
Santamaría-Botello, Gabriel (author)
Segovia-Vargas, Daniel (author)
Räisänen, Antti V. (author)
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Spanish Natl Geog Inst, Yebes Observ, Yebes, Spain ivera-Lavado, Alejandro; Garcia-Munoz, Luis-Enrique; Atia Abdalmalak, Kerlos; Santamaria-Botello, Gabriel; Segovia-Vargas, Daniel Mikro- och nanosystemteknik (creator_code:org_t)
2019-07-10
2019
English.
In: Journal of Infrared, Millimeter and Terahertz Waves. - : Springer. - 1866-6892 .- 1866-6906. ; 40:8, s. 838-855
Related links:
https://urn.kb.se/re...
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https://doi.org/10.1...
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  • Journal article (peer-reviewed)
Abstract Subject headings
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  • In this manuscript, the use of dielectric rod waveguide antenna (DRW) with an embedded planar lens is proposed as a highly directional alternative to an electrically large hyper-hemispheric silicon lens for emission at millimeter and sub-millimeter wave frequencies. DRW antennas radiate properly if only the fundamental mode is excited to the structure. Since photomixer-based terahertz sources excite many modes, single-lobe radiation patterns are obtained only for lower frequencies of their potential working band. The use of embedded planar lenses is proposed for rectifying the wavefront phase and suppressing such higher-order modes in DRW, allowing an ultra-wideband operation.

Subject headings

NATURVETENSKAP  -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)

Keyword

Dielectric rod waveguide
Antenna
THz
High power terahertz
Photomixer
Antenna emitter
Embedded dielectric lenses

Publication and Content Type

ref (subject category)
art (subject category)

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