A5091738803- Radio Frequency Integrated Circuit Design
- Photonic and Optical Devices
- Microwave Engineering and Waveguides
- Advanced Photonic Communication Systems
- Optical Network Technologies
- Millimeter-Wave Propagation and Modeling
- Terahertz technology and applications
- Electromagnetic Compatibility and Noise Suppression
- Precipitation Measurement and Analysis
- Advancements in PLL and VCO Technologies
- Advanced Fiber Laser Technologies
- Advanced Antenna and Metasurface Technologies
- Optical Wireless Communication Technologies
- Microwave and Dielectric Measurement Techniques
- Electromagnetic Compatibility and Measurements
- Quantum Information and Cryptography
- Power Line Communications and Noise
- Advanced MIMO Systems Optimization
- Advanced Wireless Communication Techniques
- Energy Efficient Wireless Sensor Networks
- Digital Marketing and Social Media
- Molecular Communication and Nanonetworks
- Antenna Design and Analysis
- Error Correcting Code Techniques
- Banking stability, regulation, efficiency
Karlsruhe Institute of Technology
2011-2023
University of Stuttgart
2013-2015
Ultra-broadband mm-wave wireless data transmission at 240 GHz carrier frequency is demonstrated successfully over a distance of 40m using direct conversion MMIC-based RF front end. A new generation 64GS/s Fujitsu DAC evaluation board provides 64Gbit/s and 96Gbit/s rates for QPSK 8-PSK modulated baseband signals. The overall link performance evaluated in terms error vector magnitude (EVM) measurement. For the EVM measurement shows values 23.7% 21.6%, respectively.
We demonstrate a single-input single-output photonic wireless link at 237.5 GHz with record 100 Gbit/s data transmission over 20 m. use an optical heterodyne I/Q transmitter and state-of-the-art active I/Q-MMIC the receiver.
The transmission of complex modulated data signals with rates up to 30 Gbit/s is successfully realized using a 240 GHz wireless link based on active MMIC components. paper presents the QPSK and 8-PSK over distance 40 m as well characterization RF frontend S-parameter measurements back-to-back signal transmission. quality evaluated in terms error vector magnitude (EVM) measurement. For symbol rate 10 GBd, EVM measurement shows values 10.3% 15.2% for signal, respectively.
In this paper, a packaging solution for millimeter-wave system-on-chip (SoC) radio transceivers is presented. The on-chip antennas are realized as primary radiators of an integrated lens antenna which offer high bandwidth and efficiency. package concept includes permittivity silicon serves additionally heat sink quad flat no-lead mountable on standard printed circuit board (PCB). electrical thermal properties the investigated through simulations calibrated measurements. verified by realizing...
We demonstrate a wireless sub-THz communication system near 237.5 GHz with one to three carriers and up 100 Gbit/s. use an optical heterodyne I/Q Tx state-of-the-art active I/Q-MMIC at the Rx.
We demonstrate a 16-pixel array of microwave-current driven superconducting nanowire single-photon detectors with an integrated and scalable frequency-division multiplexing architecture, which reduces the required number bias readout lines to single microwave feed line. The electrical behavior photon-sensitive nanowires, embedded in resonant circuit, as well optical performance timing jitter is discussed. Besides pixel measurements, we also operation temporal, spatial, photon-number resolution.
Photonics might play a key role in future wireless communication systems that operate at THz carrier frequencies.A prime example is the generation of data streams by mixing optical signals high-speed photodetectors.Over previous years, this concept has enabled series transmission experiments record-high rates.Reception these experiments, however, still relied on electronic circuits.In paper, we show receivers can also greatly benefit from optoelectronic signal processing techniques,...
Based on active millimeter-wave monolithic integrated circuits (MMICs), a pair of receiver and transmitter modules have been developed used for wireless data transmission experiments at 240 GHz with rates up to 40 Gbit/s. Both are driven subharmonic local oscillator, located 120 feature broadband quadrature I/Q IF terminals. The module has maximum conversion gain 3.8 dB GHz. imbalance stays below 1.9 in the frequency range from 200 280 achieves output power -3.6 dBm.
This contribution presents a full chip set dedicated to high data rate indoor wireless communication at carrier frequency of 300 GHz. The analog frontend consists three-chip solution, namely transmitter, receiver and local oscillator multiplier. active millimeter-wave monolithic integrated circuits are realized in GaAs-based metamorphic electron mobility transistor technology. transmitter MMIC achieves maximum output power 3.6 dBm an RF range 270 314 shows 11.4 dB conversion gain without IF...
With the growing interest in millimeter-wave (mmW) communication links, especially for multi-gigabit backhaul applications, detailed studies on performance limits terms of achievable transmission distance and data rate, but also, perhaps even more important, thorough investigations influence different weather conditions gain importance. In this paper we present a monolithic integrated circuit (MMIC)-based transmit receive front-end ultra-broadband wireless experiments utilizing 240 GHz...
Enormous technological progress accomplished over the last several decades has facilitated use of millimeter-wave (mmW) frequencies for mass-produced products such as automotive radars, industrial sensors, highspeed data communication links, and medical devices. The main enablers are new semiconductor technologies, with constantly improving cut-off reaching hundred gigahertz. However, dominant limiting factor mass production low-cost mmW systems above 100 GHz is that suitable packaging...
This paper presents the wireless data transmission of complex modulated signals in E-band using a MMIC-based link compared to current state art millimeter-wave communication. Highly linear and extremely broadband frontend components combination with latest equipment generate analyze are used this experiment. The received signal quality is evaluated terms EVM BER. An error free QPSK rate 40 Gbit/s over distance 6m presented, while 80 signals, achieved by 16-QAM modulation, results BER 3.7 ×...
We demonstrate a single-input single-output photonic wireless link at 237.5 GHz with record 100 Gbit/s data transmission over 20 m. use an optical heterodyne I/Q transmitter and state-of-the-art active I/Q-MMIC the receiver.
An ultra-wideband transmitter MMIC based on a single-balanced mixer circuit for high-speed communication systems around 300GHz has been successfully realized in 35nm mHEMT technology. Besides the cell, comprises frequency tripler followed by buffer amplifier LO path as well an RF post-amplifier single chip. Chip measurements show output power above 0 dBm, paired to conversion gain of dB and 3-dB IF bandwidth 40GHz MMIC, which makes it perfect candidate next generation 100 Gbit/s indoor systems.
In this paper, the transmission of broadband complex modulated signals with data rates up to 48 Gbit=s using an E-band MMIC-based analog frontend is shown. The paper presents QPSK, 8-PSK and 16-QAM a symbol rate 12 GBd. received signal quality evaluated in terms error vector magnitude, which, measured coherent setup, shows values -18.8 dB, -18.7 dB -20.9 for signal, respectively. Using more application oriented incoherent decreases about 1 dB.
In this paper, we investigate the applicability of parallel sequence spread spectrum (PSSS) modulation in high bandwidth millimeter wave communication systems using a 240GHz monolithic microwave integrated circuit (MMIC) based radio frequency (RF) frontend. The transmitter (Tx) and receiver (Rx) are connected directly via an attenuator incoherent back-to-back setup two independent local oscillator (LO) sources. Although system was restricted to phase modulated signals due limited linearity...
In this paper we present communication measurements with a fully integrated 240 GHz transmitter based on single SiGe RF chip in 0.13μm Bi-CMOS technology. For an improved gain the on-chip antenna is built up using in-antenna power combining conjunction dielectric 12mm silicon lens. The measurement results show that data rates of to 30 Gbps are possible for 8-PSK modulated signals. more robust bit error ratio below 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...
We show coherent wireless transmission at carrier frequencies of 0.25 THz and 0.35 THz, relying exclusively on optoelectronic concepts for RF signal generation reception. In a proof-of-concept experiment, we demonstrate BPSK symbol rate 1 GBd.
We show coherent wireless transmission at carrier frequencies within 0.30+0.02 THz using up to 20 QPSK-modulated subcarriers with a symbol rate of 0.75 GBd each, leading an aggregate line 30 Gbit/s. exploit optoelectronic techniques, both for generation and reception.
The influence of hydrometeors on a MMIC-based wireless data transmission at 240GHz carrier frequency was experimentally evaluated in climatic wind tunnel over distance 90 m. Successful transmissions up to 24 Gbit/s QPSK modulated signals through heavy rain 43 mm/h and dense fog 3 g/m <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> is achieved. impact terms EVM. Reducing the bandwidth makes still possible with BER <; 1 × 10...
This work presents a micromachined dual-band probe for ultra-broadband single-sweep measurements to 220 GHz. The features both WR-5.1 waveguide and 1.0 mm coaxial inputs that are combined in an integrated passive diplexer. shows maximum loss the crossover region of 6-7 dB minimum output return 10 dB.
High carrier frequencies in the terahertz range 0.1...30 THz are required for wireless data transmission at line rates or beyond 100 Gbit/s. Here we demonstrate a system with one to three carriers near 237 GHz (75...100) Gbit/s single-polarization over distances of (20...40) m. The narrow-band is generated by photomixing highly stable mode-locked laser lines uni-travelling-carrier photodiode. electrical photodiode output radiated lensed horn antenna. Besides receiving antenna, receiver...