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Dipl.-Ing. (FH) Johannes Jakob, M.Eng.

Projektingenieur


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Zeitschriftenartikel

  • Felix Sepaintner
  • M. Schmalzbauer
  • K. Lobbicke
  • Johannes Jakob
  • Andreas Scharl
  • Franz Xaver Röhrl
  • Roman Sammer
  • Werner Bogner
  • Stefan Zorn

Characterization of Additively Produced RF-Structures on Low-Cost PCB Materials Based on Inkjet Technology for Industrial Applications up to 80 GHz

In: IEEE Transactions on Components, Packaging and Manufacturing Technology vol. 11 pg. 1-11.

  • (2021)

DOI: 10.1109/TCPMT.2021.3118720

Usually, the printed circuit board industry has to use special subtractive manufacturing methods, if small line and space dimensions down to 50 μm are desired. This drastically raises production effort and costs. In this paper a method is shown, how the inkjet technology can be used to produce passive RF structures with minimum line and space dimensions of 25 μm. For the first time, this is possible over complete panels of low-cost PCB substrates, which have a relatively high surface roughness compared to ceramic or glass carriers. To ensure process reliability, printed lines must also be plated with an additional electroless copper layer to overcome the surface roughness with conductive layers and to lower insertion loss in the two-digit GHz range. Additionally, a surface impedance model is developed, which allows broadband first time right simulations. Finally, additively produced, passive RF filters are compared to their subtractive counterparts to show their benefits regarding production costs and electrical performance up to 80 GHz.
  • TC Teisnach Optik
  • Elektrotechnik und Medientechnik
  • DIGITAL
Beitrag (Sammelband oder Tagungsband)

  • M. Schmalzbauer
  • Johannes Jakob
  • Andreas Scharl
  • Felix Sepaintner
  • K. Löbbicke
  • Franz Xaver Röhrl
  • Werner Bogner
  • Stefan Zorn

Reliability Investigations of Additive Manufactured RF-Structures on Low-Cost PCB Materials Based on Inkjet Technology

  • (2021)
  • TC Teisnach Optik
  • Elektrotechnik und Medientechnik
  • DIGITAL
Beitrag (Sammelband oder Tagungsband)

  • Felix Sepaintner
  • M. Schmalzbauer
  • Johannes Jakob
  • Andreas Scharl
  • G. Weber
  • Franz Xaver Röhrl
  • Werner Bogner
  • Stefan Zorn

Comparison of an Inkjet Fabrication Method on Low-Cost PCB Substrates With Semi Additive And Subtractive Technologies Regarding RF-Performance

pg. 266-268.

  • (2021)

DOI: 10.1109/IMWS-AMP53428.2021.9643887

  • TC Teisnach Optik
  • DIGITAL
Beitrag (Sammelband oder Tagungsband)

  • Felix Sepaintner
  • M. Schmalzbauer
  • Johannes Jakob
  • Andreas Scharl
  • G. Weber
  • Franz Xaver Röhrl
  • Werner Bogner
  • Stefan Zorn

Comparison of an Inkjet Fabrication Method on Low Cost PCB Substrates With Semi Additive And Subtractive Technologies Regarding RF-Performance

  • (2021)
  • TC Teisnach Optik
  • Elektrotechnik und Medientechnik
  • DIGITAL
Zeitschriftenartikel

  • Franz Xaver Röhrl
  • Johannes Jakob
  • Werner Bogner
  • R. Weigel
  • Stefan Zorn

Bare die connections via aerosol jet technology for millimeter wave applications

In: International Journal of Microwave and Wireless Technologies vol. 11 pg. 441-446.

  • (2019)

DOI: 10.1017/S1759078719000114

This paper presents a comparison of chip connections using aerosol jet (AJ) and bond technology on low-cost printed circuit board (PCB) substrates. First, the behavior of the used gap filler material and the used silver ink for AJ technology on PCBs are characterized. In addition to comparing the radio frequency (RF) performance (DC to 67 GHz) of the two technologies, the mechanical stability is also compared. While the AJ technology transitions score above all for their RF performance and the lower requirements (surface finish, pad size, and adhesion) on the PCB, the bonding technology has clear advantages, especially with a different coefficient of thermal expansion values of the substrates to be connected. Finally, the measurement results of a complete package are shown, whereby the chip connection is realized once by means of AJ and once by bonding wires.
  • TC Teisnach Optik
  • Angewandte Naturwissenschaften und Wirtschaftsingenieurwesen
  • DIGITAL
Beitrag (Sammelband oder Tagungsband)

  • Johannes Jakob
  • R. Sammer
  • Franz Xaver Röhrl
  • Stefan Zorn
  • Werner Bogner

WR12 to planar transmission line transition on organic substrate

  • (2019)

DOI: 10.23919/EuMC.2019.8910843

Transitions for planar transmission lines on printed circuit boards to rectangular waveguide are challenging to design and manufacture. This paper introduces two transitions, the first one is a broadband transition from WR12 (60-90 GHz) waveguide to a stripline (SL) and the second is a narrowband transition to a grounded coplanar waveguide (GCPW). The focus at the first transition is based on the fact that signals can be transmitted in the complete E-Band. In the process, many manufacturing possibilities were exploited. For the second transition, the focus was on manufacturability in order to achieve the most cost effective transition possible. Design, simulated and measured results will be presented.
  • TC Teisnach Optik
  • Angewandte Naturwissenschaften und Wirtschaftsingenieurwesen
  • DIGITAL
Graue Literatur / Bericht / Report

  • Franz Xaver Röhrl
  • Siegfried Hildebrand
  • Johannes Jakob
  • Stefan Zorn
  • Werner Bogner

Projekt NePUMuk (Neue digitale Produktions- und Mikrostrukturierungstechnologien für Anwendungen bis 80 GHz) . Abschlussbericht

Technische Hochschule Deggendorf (THD)/Technologie Campus Teisnach

  • 2019 (2019)
  • Angewandte Naturwissenschaften und Wirtschaftsingenieurwesen
  • TC Teisnach Optik
  • DIGITAL
Vortrag

  • Johannes Jakob
  • R. Sammer
  • Franz Xaver Röhrl
  • Werner Bogner
  • Stefan Zorn

WR12 to planar transmission line transition on organic substrate . Invited Talk

In: 49th European Microwave Conference (EuMC)

Paris, Frankreich

  • 29.09.-04.10.2019 (2019)
  • TC Teisnach Optik
  • Angewandte Naturwissenschaften und Wirtschaftsingenieurwesen
  • DIGITAL
Beitrag (Sammelband oder Tagungsband)

  • Franz Xaver Röhrl
  • Johannes Jakob
  • Werner Bogner
  • R. Weigel
  • Stefan Zorn

Bare Die Connections via Aerosol Jet Technology for Millimeter Wave Applications

  • (2018)
  • TC Teisnach Optik
  • Angewandte Naturwissenschaften und Wirtschaftsingenieurwesen
  • DIGITAL
Vortrag

  • Johannes Jakob

Rechnergestützte Optimierung von galvanischen Kupferabscheideprozessen . Posterpräsentation

In: 5. Tag der Forschung

Technische Hochschule Deggendorf Deggendorf

  • 08.03.2018 (2018)
  • Angewandte Naturwissenschaften und Wirtschaftsingenieurwesen
Graue Literatur / Bericht / Report

  • Franz Xaver Röhrl
  • Siegfried Hildebrand
  • Johannes Jakob
  • Stefan Zorn
  • Werner Bogner

Projekt NePUMuk (Neue digitale Produktions- und Mikrostrukturierungstechnologien für Anwendungen bis 80 GHz) . Projektbericht

Technische Hochschule Deggendorf/Technologie Campus Teisnach

  • 2017 (2017)
  • TC Teisnach Optik
  • Angewandte Naturwissenschaften und Wirtschaftsingenieurwesen
  • DIGITAL
Beitrag (Sammelband oder Tagungsband)

  • Franz Xaver Röhrl
  • Roman Sammer
  • Johannes Jakob
  • Werner Bogner
  • R. Weigel
  • U. Hassel
  • Stefan Zorn

Cost-Effective SIW Band-Pass Filters for Millimeter Wave Applications

  • (2017)

DOI: 10.23919/EuMC.2017.8230878

  • TC Teisnach Optik
  • Elektrotechnik und Medientechnik
  • DIGITAL
Beitrag (Sammelband oder Tagungsband)

  • Franz Xaver Röhrl
  • Johannes Jakob
  • Werner Bogner
  • D. Hageneder
  • Stefan Zorn

Differential Wideband Interconnects for Organic Millimeter Wave Chip Packages . An effort to design an all-purpose RF chip package

pg. 536-539.

  • (2016)
  • TC Teisnach Optik
  • DIGITAL
Beitrag (Sammelband oder Tagungsband)

  • Franz Xaver Röhrl
  • Johannes Jakob
  • Werner Bogner
  • D. Hageneder
  • Stefan Zorn

Differential Wideband Interconnects for Organic Millimeter Wave Chip Packages . An effort to design an all-purpose RF chip package

pg. 1465-1468.

  • (2016)
  • Elektrotechnik und Medientechnik
  • TC Teisnach Optik
  • DIGITAL
Beitrag (Sammelband oder Tagungsband)

  • Franz Xaver Röhrl
  • Johannes Jakob
  • Werner Bogner
  • D. Hageneder

Wideband RF interconnects for organic chip packages comparison of single ended and differential transitions . An effort to design an all-purpose RF chip package

pg. 781-784.

  • (2015)
  • Angewandte Naturwissenschaften und Wirtschaftsingenieurwesen
  • DIGITAL
Beitrag (Sammelband oder Tagungsband)

  • A. Bauer
  • Johannes Jakob
  • R. Gmiha
  • D. Hageneder
  • Werner Bogner

Embedded Resistors for High Frequency Applications on Printed Circuit Boards

  • (2013)
  • Elektrotechnik und Medientechnik