Frankfurt (Oder), Germany
Frankfurt (Oder), Germany

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Schmalz K.,Ihp Microelectronics | Neumaier P.,German Aerospace Center | Borngraber J.,Ihp Microelectronics | Debski W.,Silicon Radar | And 2 more authors.
International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz | Year: 2014

A 245 GHz sensor system for gas spectroscopy is presented, which includes a SiGe transmitter (TX) and a receiver (RX). The integrated local oscillators of TX- and RX-chips are controlled by two external phase-locked loops (PLL), whose reference frequencies are swept with constant frequency offset. The reference frequency of the TX-PLL is modulated for frequency-modulation spectroscopy. The performance of the sensor system is demonstrated by the 2f absorption spectrum (second harmonic detection) of methanol. © 2014 IEEE.


Sun Y.,Ihp Microelectronics | Marinkovic M.,Ihp Microelectronics | Fischer G.,Ihp Microelectronics | Winkler W.,Silicon Radar | And 6 more authors.
Digest of Technical Papers - IEEE International Solid-State Circuits Conference | Year: 2013

Millimeter-Wave (MMW) frequencies offer large bandwidths for communication, radar and imaging. Moreover, antennas can be realized in small dimensions, resulting in miniaturized transceiver systems. In such systems, the cost is a big obstacle limiting their mass application. Analog MMW-transceiver chipsets have been demonstrated in [1-3], where the cost is significantly decreased. However, the system cost can be further reduced with even higher integration level and by improving system design methodology. © 2013 IEEE.


Schmalz K.,Ihp Microelectronics | Borngraber J.,Ihp Microelectronics | Debski W.,Silicon Radar | Elkhouly M.,Ihp Microelectronics | And 4 more authors.
Technical Digest - IEEE Compound Semiconductor Integrated Circuit Symposium, CSIC | Year: 2014

A 245 GHz transmitter (TX) array with an integrated antenna-array for a gas spectroscopy system has been realized, which consists of a push-push VCO with a 1/64 frequency divider, power amplifiers, frequency doublers, and on-chip antennas with localized backside etching. The TX-frequency is tunable in the range from 238 GHz to 252 GHz. The TX-array is fabricated in 0.13 μm SiGe:C BiCMOS technology with fT/fmax of 300GHz/500GHz. Its estimated output power is 7 dBm at 245 GHz, and the EIRP reaches 18 dBm at 245 GHz. The 245 GHz spectroscopy system includes a TX and a receiver in SiGe. The sensitivity of this spectroscopy system is demonstrated by the high-resolution absorption spectrum of methanol and will be increased further by this TX-array. © 2014 IEEE.


Schmalz K.,Ihp Microelectronics | Borngraber J.,Ihp Microelectronics | Debski W.,Silicon Radar | Neumaier P.,German Aerospace Center | And 4 more authors.
Electronics Letters | Year: 2015

A 500 GHz system for gas spectroscopy is presented, which includes an SiGe 4 × 1 transmitter (TX)-array, an SiGe subharmonic receiver (RX) and a 1.9 m-long gas absorption cell. The 120 GHz local oscillators (LOs) of the TX-array and RX are controlled by two external phase-locked loops (PLLs), whose reference frequencies are swept. The TX involves a frequency quadrupler. The RX uses a frequency doubler for the 120 GHz LO frequency, which is connected to a subharmonic transconductance mixer. The absorption spectrum of a gaseous mixture of methanol and acetonitrile is measured from 495 to 497 GHz. © The Institution of Engineering and Technology 2015.


Schmalz K.,Ihp Microelectronics | Borngraber J.,Ihp Microelectronics | Debski W.,Silicon Radar | Neumaier P.,German Aerospace Center | And 3 more authors.
Electronics Letters | Year: 2015

A 500 GHz system for gas spectroscopy is presented, which includes an integrated SiGe 4 × 1 transmitter (TX) array, a Golay cell as a detector and a 1.9 m-long gas absorption cell. The local oscillator (LO) of the TX array is controlled by an external phase-locked loop, whose reference frequency is swept. The four TX branches involve frequency quadruplers (x4). The TX branches are fed by a 120 GHz power division network, which is connected to the LO. The estimated radiated output power of the TX array is -7 dBm at 500 GHz. The absorption spectrum of gaseous methanol is shown for 494-500 GHz. © The Institution of Engineering and Technology 2015.


Schmalz K.,Ihp Microelectronics | Borngraber J.,Ihp Microelectronics | Kaynak M.,Ihp Microelectronics | Winkler W.,Silicon Radar | And 4 more authors.
IEEE Microwave and Wireless Components Letters | Year: 2013

A highly sensitive 120 GHz integrated dielectric sensor in SiGe BiCMOS with back-side etching is presented. The sensor consists of a bandpass filter using a planar resonator, a 120 GHz VCO at the input, and a power detector at the output. The sensitivity of the stand-alone resonator and the sensor was tested by measuring the change in the detector output voltage and the shift in the frequency response of the resonator due to a dielectric sample placed over the resonator. Simulated and measured performance of the developed device are presented and discussed. © 2001-2012 IEEE.


Birkholz M.,Ihp Microelectronics | Ehwald K.-E.,Ihp Microelectronics | Basmer T.,Ihp Microelectronics | Kulse P.,Ihp Microelectronics | And 11 more authors.
Journal of Applied Physics | Year: 2013

The progressive scaling in semiconductor technology allows for advanced miniaturization of intelligent systems like implantable biosensors for low-molecular weight analytes. A most relevant application would be the monitoring of glucose in diabetic patients, since no commercial solution is available yet for the continuous and drift-free monitoring of blood sugar levels. We report on a biosensor chip that operates via the binding competition of glucose and dextran to concanavalin A. The sensor is prepared as a fully embedded micro-electromechanical system and operates at GHz frequencies. Glucose concentrations derive from the assay viscosity as determined by the deflection of a 50 nm TiN actuator beam excited by quasi-electrostatic attraction. The GHz detection scheme does not rely on the resonant oscillation of the actuator and safely operates in fluidic environments. This property favorably combines with additional characteristics - (i) measurement times of less than a second, (ii) usage of biocompatible TiN for bio-milieu exposed parts, and (iii) small volume of less than 1 mm3 - to qualify the sensor chip as key component in a continuous glucose monitor for the interstitial tissue. © 2013 © 2013 Author(s).


Rucker H.,Ihp Microelectronics | Heinemann B.,Ihp Microelectronics | Winkler W.,Silicon Radar | Barth R.,Ihp Microelectronics | And 18 more authors.
IEEE Journal of Solid-State Circuits | Year: 2010

A 0.13 μm SiGe BiCMOS technology for millimeter-wave applications is presented. This technology features high-speed HBTs with peak transit frequencies fT of 240 GHz, maximum oscillation frequencies f max of 330 GHz, and breakdown voltages BVCEO of 1.7 V along with high-voltage HBTs (fT =50 GHz, fmax = 130 GHz, BV CEO =3.7 V integrated in a dual gate oxide RF-CMOS process. Ring oscillator gate delays of 2.9 ps, low-noise amplifiers for 122 GHz, and LC oscillators with fundamental-mode oscillation frequencies above 200 GHz are demonstrated. © 2010 IEEE.


Glisic S.,Silicon Radar | Elkhouly M.,Ihp Microelectronics | Meliani C.,Ihp Microelectronics
European Microwave Week 2013, EuMW 2013 - Conference Proceedings; EuMIC 2013: 8th European Microwave Integrated Circuits Conference | Year: 2013

A fully integrated differential power amplifier, produced in 130 nm SiGe process for 60 GHz application is presented. The PA features one-stage cascade topology with measured gain of 17.5 dB. The measured differential 1dB compression point (P1dB) at the output is 12.7 dBm, and the measured saturated power is 13.3 dBm. Power consumption at P1dB is 57.1 mW. The measured peak power-aided efficiency is 32.9%. To the best knowledge of authors, this is a record value for 60 GHz PAs in SiGe and CMOS. © 2013 EuMA.


PubMed | Ihp Microelectronics, Humboldt University of Berlin and Silicon Radar
Type: Journal Article | Journal: Journal of applied physics | Year: 2014

The progressive scaling in semiconductor technology allows for advanced miniaturization of intelligent systems like implantable biosensors for low-molecular weight analytes. A most relevant application would be the monitoring of glucose in diabetic patients, since no commercial solution is available yet for the continuous and drift-free monitoring of blood sugar levels. We report on a biosensor chip that operates via the binding competition of glucose and dextran to concanavalin A. The sensor is prepared as a fully embedded micro-electromechanical system and operates at GHz frequencies. Glucose concentrations derive from the assay viscosity as determined by the deflection of a 50nm TiN actuator beam excited by quasi-electrostatic attraction. The GHz detection scheme does not rely on the resonant oscillation of the actuator and safely operates in fluidic environments. This property favorably combines with additional characteristics-(i) measurement times of less than a second, (ii) usage of biocompatible TiN for bio-milieu exposed parts, and (iii) small volume of less than 1 mm

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