High isolation substrate integrated coaxial feed for Ka-band antenna arrays

Pawlak, H.; Reuther, M.S.; Jacob, Arne F.

doi:10.1109/eumc.2007.4405492

Cited by 7 publications

(2 citation statements)

References 6 publications

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“…The central feed is an integrated 50 coaxial probe feed topology similar to that proposed in [19] where many via holes were implemented to emulate the outer wall/shield of the coaxial feed probe. This structure provides a smooth transition and minimal unwanted feed radiation loss.…”

Section: B Microstrip Binary Feed Networkmentioning

confidence: 99%

Substrate-Integrated Cavity-Backed Patch Arrays: A Low-Cost Approach for Bandwidth Enhancement

Awida

Suleiman²,

Fathy

2011

IEEE Trans. Antennas Propagat.

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The substrate-integrated waveguide (SIW) technology is utilized as an alternative low-cost approach in fabricating cavity-backed patch antennas. The proposed antenna arrays combine the attractive features of the conventional metalized cavity-backed patch arrays like surface wave suppression, high radiation efficiency, and enhanced bandwidth, yet provide a low manufacturing cost. A previously developed design of a 2 2 SIW cavity-backed microstrip patch sub-array is extended here and used as a basic building block to attain larger arrays of 2 4, 4 4, and 8 8 elements. The fabricated arrays have been measured and demonstrate good agreement with their simulated performance. The design and performance of these arrays are compared to other conventional bandwidth enhancement techniques, which prove SIW as a viable alternative.Index Terms-Cavity-backed, microstrip array, substrate integrated waveguide.

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Section: B Microstrip Binary Feed Networkmentioning

confidence: 99%

Substrate-Integrated Cavity-Backed Patch Arrays: A Low-Cost Approach for Bandwidth Enhancement

Awida

Suleiman²,

Fathy

2011

IEEE Trans. Antennas Propagat.

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“…8) Then, it is enhanced when a bolometer is fabricated on a low-thermalconductivity substrate. Moreover, to apply the VO x thin film to an antenna-coupled bolometer device, 9) which can be expected as a high-performance detector operating in terahertz and infrared ranges, an insulating and low-dielectric-constant substrate is required 10,11) because a thin-film antenna is directly fabricated on the substrate. These requirements are satisfied by a fused quartz substrate.…”

Section: Introductionmentioning

confidence: 99%

Comparison of VO_xthin films fabricated on fused quartz and SiO₂/Si substrates by metal organic decomposition

Son¹

2014

Jpn. J. Appl. Phys.

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VOx thin films were fabricated by metal organic decomposition (MOD) on SiO2/Si and fused quartz substrates. In comparison with the films fabricated on SiO2/Si substrates, the purity of VO2 in the films fabricated on fused quartz substrates was higher. This leads to a 1 order higher resistivity change, about 4 orders of magnitude, and slightly twofold higher temperature coefficient of resistance (TCR), gained at 300 K, at about 4.8%/K. The films fabricated on fused quartz substrates had grain sizes of 150–250 nm, while it was about 200–300 nm for the films fabricated on SiO2/Si substrates. The extrinsic and intrinsic stresses of the films fabricated on fused quartz substrates were higher than those of the films fabricated on SiO2/Si substrates. The transition temperature and hysteresis loop width of the films fabricated on fused quartz substrates were 52 and 2 °C, which were 3 °C lower and 1 °C narrower than those of the films fabricated on SiO2/Si substrates, respectively.

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Ultra-wideband radars for high-resolution imaging and target classification

Yarovoy

2007

2007 European Radar Conference

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High isolation substrate integrated coaxial feed for Ka-band antenna arrays

Cited by 7 publications

References 6 publications

Substrate-Integrated Cavity-Backed Patch Arrays: A Low-Cost Approach for Bandwidth Enhancement

Substrate-Integrated Cavity-Backed Patch Arrays: A Low-Cost Approach for Bandwidth Enhancement

Comparison of VO_xthin films fabricated on fused quartz and SiO₂/Si substrates by metal organic decomposition

Ultra-wideband radars for high-resolution imaging and target classification

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High isolation substrate integrated coaxial feed for Ka-band antenna arrays

Cited by 7 publications

References 6 publications

Substrate-Integrated Cavity-Backed Patch Arrays: A Low-Cost Approach for Bandwidth Enhancement

Substrate-Integrated Cavity-Backed Patch Arrays: A Low-Cost Approach for Bandwidth Enhancement

Comparison of VOxthin films fabricated on fused quartz and SiO2/Si substrates by metal organic decomposition

Ultra-wideband radars for high-resolution imaging and target classification

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Product

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Comparison of VO_xthin films fabricated on fused quartz and SiO₂/Si substrates by metal organic decomposition