Meik Huber

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This paper reviews proposed realization concepts and achievements of wireless sensor nodes and focuses on new developments in the 24 GHz frequency range. The relatively high frequency offers the advantage of ultra miniaturization and therefore opens new application fields. On the other hand power consumption of the RF-front-end becomes still more(More)
A highly integrated 5.8 GHz, SiGe BiCMOS transceiver IC has been developed for use in digital cordless phones, and streaming audio and video applications. The transceiver IC includes a double downconversion receiver, a direct upconversion transmitter, VCO/PLL/modulator, low-IF filter, RSSI and demodulator. This IC has excellent performance with better than(More)
In this paper, the paper presents a low-power mixer with integrated local oscillator intended for use in a 24 GHz receiver front-end. The chip is realized using HBT GaAs technology. The voltage-controlled oscillator (VCO) provides a tuning range of 18% at a mean frequency of 21 GHz, with a low DC consumption of 21 mW. DC consumption of the mixer part is(More)
A complete low power 24 GHz transceiver chain intended for wireless sensor networks is presented. Including standard button cell batteries, the node size is only 1cm<sup>3</sup>. A specially designed PCB antenna is implemented, which is fed through the substrate from the backside. The RF components are flip chip mounted directly to the feedline to reduce(More)
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