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The level of integration for RF and mm-wave systems is continuously increasing. Highly-integrated system on chip solutions have to be encapsulated in a package and assembled on a board. In addition, to be more attractive as a product, the trend goes towards further integration of passives and antennas in a package. This drives the system in package solutions. However, electrical properties of the...
This paper presents a fully integrated 60GHz SiGe transceiver for industrial radar applications. The transceiver is packaged in an eWLB technology which allowes for direct embedding of two dipole antennas in the package. The compact transceiver frontend has been evaluated in an FMCW radar setup. The transceiver features a wide tunable operating range and is comprised of a vector modulator and a homodyne...
A partly integrated phase-locked loop (PLL) accompanied by a 60 GHz IQ-transmitter and IQ-receiver is presented in this paper. The chip has been designed to support wireless data communication applications as well as radar applications for level sensing or moving-target-indication (MTI) in the ISM band. This contribution focuses on the implementation of the PLL, furthermore it shows a CW-radar-measurement...
A fully integrated receiver MMIC manufactured in a 200 GHz SiGe:C production technology is presented. To simplify the application, the fully differential design is based on a homodyne approach. It comprises polyphase filters, passive power splitters, a Gilbert-based complex downconversion mixer, a three-stage low noise amplifier offering two gain steps, and a three-stage programmable gain baseband...
A fully integrated transmitter MMIC manufactured in a 200 GHz SiGe:C production technology is presented. To simplify the analog frontend, the fully differential design is based on a homodyne architecture. It comprises polyphase filters, a Gilbert-based complex upconversion mixer and an active signal combiner followed by a linear power amplifier. The total measured upconversion gain is 27 dB. With...
A 77-GHz automotive radar transmitter is presented. The transmitter is based on a 19.25-GHz Colpitts voltage controlled oscillator, that feeds two cascaded frequency doubler stages. In a following medium power amplifier (MPA) the signal recovers after frequency transformation. Finally a power amplifier (PA) adds 6 dB to the power level after the MPA. In addition, an emitter follower stage connected...
This paper presents a single-chip receiver frontend consisting of a low-noise amplifier and an active downconversion mixer, intended for application in automotive radar systems at 77 GHz. The circuit has been implemented in a SiGe:C HBT technology with ft/fmax = 200/250 GHz and can operate either fully differential or in single-ended mode. The receiver frontend shows a conversion gain of 24 dB and...
A down-converter including a voltage controlled oscillator (VCO), buffer, mixer, and prescaler is presented. The fully differential circuit configuration of the down-converter operates in a frequency range from 17.7 GHz to 19.4 GHz at a 5.5 V supply. The overall current consumption at room-temperature is 186 mA. The VCO has been improved in terms of area consumption and phase noise.
This contribution shows the successful implementation of a fully-differential single-chip radar transceiver with switchable transmit path. The chip facilitates cascading of multiple modules via daisy-chaining using the integrated LO power splitter and LO output on the chip edge opposite to the LO input (LO feedthrough). An on-chip differential rat-race coupler provides for separation of transmit (TX)...
This paper presents circuits in SiGe bipolar technology for automotive radar applications at 77 GHz. They cover the transmit and receive path of typical radar sensors and include a voltage-controlled oscillator with integrated power amplifier and frequency divider, an active mixer and a low-noise amplifier
A dual band low noise and low cost wireless LAN amplifier has been fully integrated in a commercial SiGe:C bipolar technology using a highly doped silicon substrate. Outstanding low noise figures of 0.9dB at 2.4GHz and 1.45dB at 6GHz have been measured. Current consumption is 11mA in the low band and 17 mA in the high band, out off a voltage supply of 3.2V, and stabilized by a bandgap voltage reference...
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