Infrared Linear Tapered Slot Antenna

Florence, Louis A.; Slovick, Brian; Kinzel, Edward C.; Bean, Jeffrey A.; Boreman, Glenn D.

doi:10.1109/lawp.2011.2176904

Cited by 8 publications

(5 citation statements)

References 11 publications

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“…The extremely low detectivity of these detectors is therefore the main impediment for these devices being widely commercialized. Considerable efforts had been made to improve the overall efficiency of the device either by increasing the antenna coupling efficiency [ 16 , 17 , 18 , 29 , 30 , 31 ], sensing device efficiency [ 18 , 20 , 32 ], impedance matching efficiency between both the antenna and the sensing device [ 22 , 33 ] or even optimizing the fabrication process [ 18 , 34 ].…”

Section: Antenna Coupled Ir Detectorsmentioning

confidence: 99%

“…Benzo-cyclobutene (BCB) has also been used in place of SiO

since its refractive index is close to that of air which enables air-side illumination configuration. BCB also has additional advantages including its relatively low loss at infrared wavelengths and ease of deposition via spin coating [ 29 , 40 , 41 , 42 , 43 , 44 ].…”

Section: Antenna Designmentioning

confidence: 99%

“…This technique provides greater design flexibility covering a wider range of impedances that accommodates the ultra low impedance thermocouple as well as the MOM diodes of hundreds of kilo ohms. Such an approach has been studied and applied to various designs [ 22 , 29 , 39 , 91 ].…”

Section: Impedance Matching Considerationmentioning

confidence: 99%

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Nano-Antenna Coupled Infrared Detector Design

Mubarak

Sidek

Abdel‐Rahman

et al. 2018

Sensors

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Since the 1940s, infrared (IR) detection and imaging at wavelengths in the two atmospheric windows of 3 to 5 and 8 to 14 μm has been extensively researched. Through several generations, these detectors have undergone considerable developments and have found use in various applications in different fields including military, space science, medicine and engineering. For the most recently proposed generation, these detectors are required to achieve high-speed detection with spectral and polarization selectivity while operating at room temperature. Antenna coupled IR detectors appear to be the most promising candidate to achieve these requirements and has received substantial attention from research in recent years. This paper sets out to present a review of the antenna coupled IR detector family, to explore the main concepts behind the detectors as well as outline their critical and challenging design considerations. In this context, the design of both elements, the antenna and the sensor, will be presented individually followed by the challenging techniques in the impedance matching between both elements. Some hands-on fabrication techniques will then be explored. Finally, a discussion on the coupled IR detector is presented with the aim of providing some useful insights into promising future work.

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Section: Antenna Coupled Ir Detectorsmentioning

confidence: 99%

“…Benzo-cyclobutene (BCB) has also been used in place of SiO

Section: Antenna Designmentioning

confidence: 99%

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Nano-Antenna Coupled Infrared Detector Design

Mubarak

Sidek

Abdel‐Rahman

et al. 2018

Sensors

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“…J. Gou et al [ 5 ] (p. 91) suggested that spiral antennas can significantly improve the tunable THz-frequency absorption of microbridge structures and provides an effective way to fabricate THz-frequency microbolometer detectors with great potential in real-time imaging applications. L. A. Florence et al [ 6 ] (pp. 1299–1301) used a V-shaped, linear, tapered slot antenna (V-LTSA), coupled to a metal-oxide-metal (MOM) diode, characterized at 10.6μm wavelength.…”

Section: Introductionmentioning

confidence: 99%

A Self-Adapting, Pixelized Planar Antenna Design for Infrared Frequencies

Shubbar

Rakos

2022

Sensors

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Infrared antennas with reconfigurable characteristics offer several advantages in the medical, military, telecommunication and energy harvesting areas, while their design and implementation is a particularly challenging task for the researchers. This paper proposes a pixel antenna, designed for mid-infrared frequencies with a bandwidth more than 25 THz, consisting of 3 × 3 square metallic planar patches. Bolometer-based switches are placed between the adjacent pixels in order to obtain the adaptable characteristics, optimized for the incoming infrared radiation. The incident wave from a certain direction will heat up the bolometers. Consequently, the conductivity of these bolometers (PTC) will be decreased, and as a result they can be considered to turn to OFF state. The simulation results suggest that the proposed structure can steer the antenna pattern toward the direction of the incident radiation in an adaptable manner, thereby considerably increasing the antenna gain. The gain of the antenna can be increased up to 2 dB with respect to the reference one, which makes it a promising structure for various applications.

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“…The extremely low detectivity of these detectors, at least about three orders of magnitude compared to the other cryogenic-cooled IR detectors counterparts [5], is the main impediment for these devices from being widely commercialised. Considerable efforts have been made to improve the overall efficiency either by increasing antenna coupling efficiency [2,[6][7][8][9][10], sensing device efficiency [10][11][12], and impedance matching efficiency between both the antenna and the sensing device [1,13]. An integrated microparabolic reflector nanoantenna coupled structure was proposed in [14,15] and is expected to contribute with a considerable increase in the detectivity through the reduction in the substrate modes losses, and an added space diversity gain via the new larger optical active area of the device.…”

mentioning

confidence: 99%

Fabrication of microparabolic reflector for infrared antenna coupled detectors

Mubarak

Sidek

Abdel‐Rahman

et al. 2018

Micro & Nano Letters

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The fabrication process of a microparabolic reflector using isotropic xenon difluoride XeF 2 etching technique is presented and analysed through this work for developing infrared antenna-coupled detectors. Although many parametric studies described the behaviour of this process in the literature, the non-linearity of the process and its dramatic dependency on the pattern definition result in great difficulties when adopting the process for developing a particular structure. The main focus of this work is, therefore, to present a detailed etching analysis as dictated in the proposed design providing the proper etching recipe according to the proposed structure design and its associated masking pattern. Deep insights into the process have been highlighted suggesting the necessity of the process assessment in terms of evaluating the threedimensional etched volume rather than the etched depth. This will potentially solve the non-linearity behaviour and the pattern dependency problem. The optimum etching recipe yields approximately a total volume of 0.354 mm 3 through the proper patterning mask. The resultant parabolic cavities have 75 and 13 mm in their diameter and depth, respectively, as required for the proposed structure. The integration of a microparabolic reflector with such detectors will potentially enhance the specific detectivity of these detectors.

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Infrared Linear Tapered Slot Antenna

Cited by 8 publications

References 11 publications

Nano-Antenna Coupled Infrared Detector Design

Nano-Antenna Coupled Infrared Detector Design

A Self-Adapting, Pixelized Planar Antenna Design for Infrared Frequencies

Fabrication of microparabolic reflector for infrared antenna coupled detectors

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