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Institute for High-Frequency and Communication Technology


Prof. Dr. rer. nat. Ullrich Pfeiffer

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German Research Foundation (DFG)

High Frequency Flexible Bendable Electronics for Wireless Communication Systems (FFLexCom)

Priority Programme - SPP 1796

Support Code: DFG PF 661/8-1



Project Initiator:

Riedl, Thomas, Prof. Dr. rer. nat.
Chair of Electronic Devices
Bergische Universität Wuppertal

Pfeiffer, Ullrich, Prof. Dr. rer. nat.
High Frequency Systems in Communications Technology / Terahertz-Technology, Automotive Radar Systems
Bergische Universität Wuppertal



Project Objectives:

Thin-film technologies and devices have made a tremendous progress over the past decades. However, the achievable cutoff frequency of thin-film transistors remains comparatively small, which presents a severe challenge towards the realization of  exible RF electronics. The 10by10.com main objective is to combine advanced metal-oxide thin- lm technologies with advanced RF circuit design methodologies to realize a technology breakthrough in high-frequency  exible electronics for wireless communication systems. This technological breakthrough is enabled by a ten-fold improvement of fT through continued device optimization and scaling and yet another ten-fold speed-enhancement through innovative harmonic circuit design techniques beyond the device cutoff frequency. This is achieved by operating the devices well-beyond their cutff-frequency, either harmonically, or, based on the principle of distributed resistive self-mixing.



Project duration   Sep 2015 - Dez 2018
FundingGerman Research Foundation (DFG)
Tagsflexible RF electronics, metal-oxide TFT, wireless communication, circuit design




Second project phase


Title of the continuation project

A metal-oxide TFT technology platform for flexible RF communication systems - Phase 2

Support Code: DFG PF 661/8-2

Project Objectives:

Thin-film technologies and devices have made a tremendous progress over the past decades. However, the achievable cutoff frequency of thin-film transistors remains comparatively small, which presents a severe challenge towards the realization of flexible RF electronics. The 10by10.com main objective is to combine advanced metal-oxide thin-film technologies with advanced RF circuit design methodologies to realize a technology breakthrough in high-frequency flexible electronics for wireless communication systems. This technological breakthrough is enabled by a ten-fold improvement of fT through continued device optimization and scaling and yet another ten-fold speed-enhancement through innovative harmonic circuit design techniques beyond the device cutoff frequency. As a result of phase one, this double ten-fold (10by10) performance has been reached, (i) at the level of receiver components detecting signals beyond the GHz-barrier, and (ii) on the device-level reaching fTs as high as 324MHz. The aim of the second phase is to benefit from our achievements in phase one to progress on transmitters (high-power TFTs) and to further improve the device technology and circuits to enable wireless communication beyond the GHz-barrier at the end of year 6.




Project duration   Oct 2018 - Dec 2021
FundingGerman Research Foundation (DFG)
Tagsflexible RF electronics, metal-oxide TFT, wireless communication, circuit design