UWB, Non Dispersive Radiation From the Planarly Fed Leaky Lens Antenna—Part II: Demonstrators and Measurements

Neto, A.; Monni, S.; Nennie, Frans

doi:10.1109/tap.2010.2048880

Cited by 48 publications

(22 citation statements)

References 6 publications

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“…A time-domain system based on a mm-wave RTD-MOSFET wavelet generator [22] connected to a nondispersive and wideband leaky lens antenna [19]- [21] is investigated for material characterization.…”

Section: Time-domain Systemmentioning

confidence: 99%

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Time-Domain System for Millimeter-Wave Material Characterization

Vakili

Ohlsson

Wernersson

et al. 2015

IEEE Trans. Microwave Theory Techn.

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Time-domain material characterization using a leaky lens antenna and an in-house fabricated millimeter-wave wavelet generator using III-V technology is investigated. The wavelet generator produces short high-frequency pulses and is connected to a wideband and nondispersive leaky lens antenna. A purely timedomain methodology is used to extract the complex permittivity of nondispersive and nonmagnetic materials. The permittivity is found from the phase delay and the amplitude mismatch introduced by the object at the carrier frequency of the pulse. The wide bandwidth of the wavelet is used to investigate frequency-dependent material properties. Measurement results from two dielectric slabs are illustrated. The time-domain methodology is verified by frequency-domain measurements and analysis.Index Terms-Leaky lens antenna, material characterizations, millimeter-wave (mm-wave), time domain, wavelet generator.

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Section: Time-domain Systemmentioning

confidence: 99%

“…The system consists of a wideband nondispersive leaky lens antenna [19]- [21] and an in-house fabricated wavelet generator [22]. Leaky wave propagation together with a silicon hemispherical lens give wideband and nondispersive radiation properties.…”

Section: Introductionmentioning

confidence: 99%

Time-Domain System for Millimeter-Wave Material Characterization

Vakili

Ohlsson

Wernersson

et al. 2015

IEEE Trans. Microwave Theory Techn.

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“…However, when an electrically dense material approaches the corrugations from above, since the propagation constant of the first mode is lower than the one of the dense material (as it is illustrated in Fig. 2(a)), it starts to operate as a leaky wave antenna whose main angle of elevation can be calculated by the following expression [13,25]:…”

Section: Waveguide Below a Homogeneous Substratementioning

confidence: 99%

Controlled Radiation From Dielectric Slabs Over Spoof Surface Plasmon Waveguides

Quevedo–Teruel¹

2013

PIER

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Abstract-The radiation characteristics of dielectric slabs over a transmission waveguide, based on the concept of spoof surface plasmons, are studied in this paper. The proposed structure can be used to control the radiation over a wide band of operation, whilst retaining low Side Lobe Levels (SLLs) and cross-polarization. Leaky modes, broadside radiation and directive beams at fixed angles can all be obtained using various configurations (utilising homogeneous or gradient index dielectric slabs). The proposed antenna design has attractive performance for THz detectors and transmitters.

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“…1), in order to obtain directive radiation inside the dielectric and, consequently, efficient illumination of the lens. The leaky-lens was experimentally proved to be nondispersive and highly efficient over a wide bandwidth in the microwave [4]. Standalone demonstrations of antennas, is typical in the microwave domain.…”

Section: Introductionmentioning

confidence: 99%

THz leaky lens antenna integrated with Kinetic Inductance Detectors

Neto

Llombart

Baselmans

et al. 2013

2013 International Workshop on Antenna Technology (iWAT)

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This contribution presents the fabrication and measurements of the leaky lens antenna integrated with a cryogenically cooled Kinetic Inductance Detector, in order to achieve an ultra sensitive THz receivers over a bandwidth ranging from 0.15 GHz to 1.5 THz. The system has been manufactured and characterized in terms of power efficiency, and radiation pattern properties. The agreement between the expectations and the measurements is excellent already at this first attempt. These measurements demonstrate the manufacturability and repeatability at THz frequencies of the properties of the leaky lens antenna concept.

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UWB, Non Dispersive Radiation From the Planarly Fed Leaky Lens Antenna—Part II: Demonstrators and Measurements

Cited by 48 publications

References 6 publications

Time-Domain System for Millimeter-Wave Material Characterization

Time-Domain System for Millimeter-Wave Material Characterization

Controlled Radiation From Dielectric Slabs Over Spoof Surface Plasmon Waveguides

THz leaky lens antenna integrated with Kinetic Inductance Detectors

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