Airborne applications demand exceptional overall radar system performance and eminently high output power for range target detection. The frequency modulated continuous wave (FMCW) presented in this article is capable of achieving task due to its at 94-GHz center with over 26-GHz tuning range. Nevertheless, the still provides a small form factor low consumption 4.25 W 5 V single Universal Serial Bus (USB) supply. key component Silicon Germanium (SiGe) bipolar complementary...

High-frequency systems such as mm-wave radar transmitters and LO/RF driver chains in vector network analyzers (VNAs) often require the generation of signals with high output power. While these benefit considerably from reduction size cost provided by SiGe integration, their power must be further increased order to meet performance other technologies (e.g., GaAs). To this end, a signal generator MMIC was developed that achieves 28.7 dBm peak 21.9% PAE over 27.4 whole frequency range 19.7 GHz...

Wireless systems like radar and communication evolved progressively into multichannel over the past years. The most common concepts are multiple-input multiple-output (MIMO) phased array architectures. In this paper, we present a transmitter monolithic microwave integrated circuit (MMIC) in SiGe BiCMOS technology for its application, mixed-mode frequency modulated continuous wave that is able to operate both ways, an MIMO beamforming mode. mode used medium range fast 3-D scans beamforming....

This paper presents SiGe-based transmitter and receiver chips for a radio frequency identification (RFID) frontend in the 61-GHz industrial, scientific, medical (ISM) band. The are fabricated modern 130-nm SiGe BiCMOS technology with HBTs offering an fT of 250 GHz f <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">max</sub> 370 GHz. presented consists fundamental voltage-controlled oscillator (VCO), power amplifier (PA), lumped element Wilkinson...

Fields of application like industrial measurement, security, and material characterization with harsh demands for high spatial resolution require FMCW radar systems absolute bandwidth. Hereby, close adjacent targets can be distinguished from each other. Usually those are designed at very frequencies around 100 GHz above because here, sensors bandwidth less effort but signal handling, antenna design output power is more difficult harder to achieve frequencies. In this work, a modern SiGe...

The trend towards smaller form factor MIMO radar systems is enabled by modern SiGe BiCMOS technologies in which more functionality can be integrated into MMICs, including digital control logic beside analog low- and high-frequency circuits for signal generation, transmitting, receiving also modulating waveforms, like this work. Industrial measurement, automotive or security applications demand small imaging systems. For purpose, a compact K-Band system with code-division multiplex...

In this paper an ultra high bandwidth signal generation MMIC is presented. Based on fundamental oscillator working at 75 GHz followed by a two stage frequency quadrupler, output range from 231.2-309.1 achieved, resulting in overall tuning of almost 78 GHz. The maximum power the transmitter -2.8 dBm with variation 7.5 dB over complete range. combination low phase noise approx. -75 dBc/Hz @ 1 MHz offset 300 signal, various resolution distance measurements or imaging applications especially...

The detection and tracking of UAV's is a critical task for public military security. main are the low flight height small radar cross section (RCS). problems increase in an urban environment with many high buildings, especially when tall buildings block line sight. A new concept distributed sensors was developed to close this gap. To reduce impact shadows canyons, surveillance grid optical necessary which covers complete environment. build up different security sectors monitor all access...

This paper presents a SiGe transmitter chip for short-range devices in the 61 GHz ISM frequency band. The presented consists of fundamental VCO, PA, lumped element Wilkinson-Dividers and static divide-by-16 chain stabilization PLL. Two variants are fabricated with supply voltages 3.3 V 5 modern 130nm BiCMOS technology HBTs offering an f <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">t</sub> 250...

High-frequency systems such as mm-wave radar transmitters and LO/RF chains in vector network analyzers (VNAs) often require the generation of signals with high output power. While these benefit considerably from reduction size weight provided by SiGe integration, their power must be further increased order to meet performance other technologies (e.g. GaAs). To this end, a signal generator was developed that achieves 28.7 dBm peak 21.9% PAE over 27.4 its whole frequency range 19.7 GHz 28.2...

MIMO phased array radar systems benefit from beamforming in order to increase system dynamic and detection range. Therefore, an ultra-wideband IQ signal generation concept for driving a vector adder, which produces the desired phase shift each channel of system, has been developed. The classic generate wideband quadrature signals that uses frequency doubler static divider brings 0°/180° uncertainty at dividers outputs makes this useless when using multiple TX-channels once like radars....