Antenna and Package Design for 61- and 122-GHz Radar Sensors in Embedded Wafer-Level Ball Grid Array Technology

Frank, Martin J.; Reissland, Torsten; Lurz, Fabian; Voelkel, Matthias; Lambrecht, Franziska; Kiefl, Stefan; Ghesquière, Pol; Ng, Herman Jalli; Kissinger, Dietmar; Weigel, Robert; Koelpin, Alexander

doi:10.1109/tmtt.2018.2873368

Cited by 32 publications

(15 citation statements)

References 36 publications

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“…After the precursor reaches the point of cleaning material, it will adsorb chemical substances and react with the active surface, and finally make a recording film. Membrane damage will not only reduce the effectiveness of the skin, but also shorten the functional life of the skin and affect the function of the skin [23]. When the polymer concentration and viscosity are low, the fibers obtained in beads and beads mainly have no bonds between molecular chains or the physical connection itself is not strong enough to withstand external stress and breakage.…”

Section: Polyvinylidene Fluoride Composite Filmsmentioning

confidence: 99%

Preparation of Modified Carbon Nanotube Polyvinylidene Fluoride Composite Film and Its Application in Packaging Design

Feng

2022

Advances in Materials Science and Engineering

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Sustainable design does not emphasize the safety of the ecosystem, but builds a systematic innovation process, taking into account customer needs, environmental benefits, social benefits, and corporate development. This article is based on the preparation of a modified carbon nanotube polyvinylidene fluoride composite film to analyze its application value in packaging design, aiming at analyzing the performance of the modified carbon nanotube and the polyvinylidene fluoride composite film during the preparation process, and applying its various characteristics to the process of packaging design optimization concept. The article is mainly divided into two parts: preparing modified carbon nanotubes and preparing polyvinylidene fluoride composite films. Among them, the photomechanical properties of carbon nanotubes, the relationship between the composition of the composite material and the dielectric properties, the dielectric response and relaxation behavior, the hydrophilicity of the composite membrane, and the membrane separation technology were discussed, and the carbon nanotubes were constructed. Incorporating carbon nanotubes into carbon fiber hybrid materials, and combining carbon nanotubes with polymer materials, works extremely well. The structure model is prepared, the molecular pore size, hydrophilicity, etc. are recorded, and surface modification, chemical modification, blending modification, and other methods are applied to analyze and evaluate the data. The experimental results show that in the application of modified carbon nanotubes and polyvinylidene fluoride composite films and packaging design, the interactive function of toughening modification increases 2.44 points; through enhancement modification, packaging design reduction increases by 2.5 points; and through the compatibilization modification, the functionality of the packaging design has increased by 1.88 points.

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Section: Polyvinylidene Fluoride Composite Filmsmentioning

confidence: 99%

Preparation of Modified Carbon Nanotube Polyvinylidene Fluoride Composite Film and Its Application in Packaging Design

Feng

2022

Advances in Materials Science and Engineering

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“…Additionally, an embedded wafer‐level ball grid array (eWLB) sensor package with integrated antenna structures is used as feed as well. Further details on the sensor packages and antenna structures are provided in [15 ]. The feed is centred underneath the transmitarray for both scenarios.…”

Section: Measurement Resultsmentioning

confidence: 99%

Low‐profile and low‐cost transmitarray antenna at 122 GHz based on unit‐cells with 1‐bit phase resolution

et al. 2020

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This Letter presents the design of a low‐profile and low‐cost transmitarray antenna operating at 122 GHz. The transmitarray design is based on unit‐cells with 1‐bit phase resolution. A single RO4350B substrate layer is used to form the unit‐cells resulting in a total thickness of 0.326 mm. A wideband shift in the transmission phase of 180° is generated by rotating one metal layer of the unit‐cell by 180°. The simulation of the transmitarray with 30×30 elements and a feed distance of 35 mm shows a maximum directivity of 28 dBi at 122 GHz. Steering angles of 0° and 15° are investigated. Measurements of the fabricated transmitarrays are performed with an open waveguide and a package antenna as feed showing similar results but slightly different maximum relative gain values of 11.8 and 9.5 dB for the 0° version. The measured main beam directions are in good agreement with the simulations and the design values.

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“…Here, the aforementioned FOWLP or eWLB approach has been applied in a similar fashion. In addition, the redistribution layer of the package has been used to integrate the antennas into the package [66], [68], [84]. An example of a bistatic 60-GHz industrial radar transceiver with antennas in an eWLB package is shown in Fig.…”

Section: B Industrial and Consumer Radar Transceiversmentioning

confidence: 99%

“…This approach involves increased losses and bandwidth limitations at the antenna interface, but in return allows for a large aperture. For short-range applications, however, a systemin-package (SiP) approach has been followed [68], [89], [90]. As an example, Fig.…”

Section: B Industrial and Consumer Radar Transceiversmentioning

confidence: 99%

“…6(a) shows a scalable 120-GHz radar transceiver [67] that has been packaged into an FOWLP, shown in Fig. 6(b), to realize a highly integrated bistatic radar SiP with integrated antennas and low-loss interface [68]. In an even more extreme integration step, the 120-GHz antennas can even be integrated on the silicon chip itself [91].…”

Section: B Industrial and Consumer Radar Transceiversmentioning

confidence: 99%

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Millimeter-Wave and Terahertz Transceivers in SiGe BiCMOS Technologies

Kissinger

Kahmen

Weigel

2021

IEEE Trans. Microwave Theory Techn.

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This invited paper reviews the progress of silicon-germanium (SiGe) bipolar-complementary metal-oxidesemiconductor (BiCMOS) technology-based integrated circuits (ICs) during the last two decades. Focus is set on various transceiver (TRX) realizations in the millimeter-wave range from 60 GHz and at terahertz (THz) frequencies above 300 GHz. This article discusses the development of SiGe technologies and ICs with the latter focusing on the commercially most important applications of radar and beyond 5G wireless communications. A variety of examples ranging from 77-GHz automotive radar to THz sensing as well as the beginnings of 60-GHz wireless communication up to THz chipsets for 100-Gb/s data transmission are recapitulated. This article closes with an outlook on emerging fields of research for future advancement of SiGe TRX performance.

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Antenna and Package Design for 61- and 122-GHz Radar Sensors in Embedded Wafer-Level Ball Grid Array Technology

Cited by 32 publications

References 36 publications

Preparation of Modified Carbon Nanotube Polyvinylidene Fluoride Composite Film and Its Application in Packaging Design

Preparation of Modified Carbon Nanotube Polyvinylidene Fluoride Composite Film and Its Application in Packaging Design

Low‐profile and low‐cost transmitarray antenna at 122 GHz based on unit‐cells with 1‐bit phase resolution

Millimeter-Wave and Terahertz Transceivers in SiGe BiCMOS Technologies

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