Search Results - "Lott, U."

Assessment Methods for Demonstrating Compliance With Safety Limits of Wireless Devices Used in Home and Office Environments by Kuhn, S., Lott, U., Kramer, A., Kuster, N.

“…Short-range wireless radio-frequency devices are rapidly pervading home and office environments. Nevertheless, their contribution to the electromagnetic field…”
Get full text

An antenna diversity MMIC vector modulator for HIPERLAN with low power consumption and calibration capability by Ellinger, F., Lott, U., Bachtold, W.

“…The design and performance of a vector-modulator-based phase shifter for high-performance radio local area networks at 5.2 GHz is presented in this paper. Low…”
Get full text

Design of a low-supply-voltage high-efficiency class-E voltage-controlled MMIC oscillator at C-band by Ellinger, F., Lott, U., Bachtold, W.

“…In this paper, a monolithically integrated voltage-controlled class-E tuned oscillator for C-band has been designed and measured. Large-signal optimization was…”
Get full text

Measurement of magnitude and phase of harmonics generated in nonlinear microwave two-ports by Lott, U.

“…A method for simultaneously measuring the magnitude and phase of the harmonics generated by a microwave two-port is reported. The two-port under test is driven…”
Get full text

A 6.5-mW receiver front-end for bluetooth in 0.18- mu m CMOS by Beffa, F, Vogt, R, Bachtold, W, Zellweger, E, Lott, U

“…This paper describes the design of a low-IF receiver front-end for Bluetooth fabricated in a 0.18 mu m CMOS technology. The chip includes an LNA and an…”
Get full text

A nonlinear microwave MOSFET model for SPICE simulators by Biber, C.E., Schmatz, M.L., Morf, T., Lott, U., Bachtold, W.

“…As the gate lengths of silicon MOSFET's become smaller and smaller, these devices are usable to frequencies in the gigahertz range. The nonlinear MOSFET model…”
Get full text

A calibratable 4.8-5.8 GHz MMIC vector modulator with low power consumption for smart antenna receivers by Ellinger, F., Lott, U., Bachtold, W.

“…A highly integrated 4.8-5.8 GHz vector modulator MMIC using a 0.6 /spl mu/m GaAs MESFET foundry process is presented. Variable gain amplifiers with amplitude…”
Get full text

A 5.2 GHz variable gain LNA MMIC for adaptive antenna combining by Ellinger, F., Lott, U., Bachtold, W.

“…A variable gain LNA was designed for HIPERLAN I. A noise figure of only 1.7 dB is measured at a gain of 14.5 dB and a power consumption of 9 mW (V/sub DC/=3 V,…”
Get full text

Single chip 1.9 GHz transceiver frontend MMIC including RX/TX local oscillators and 300 mW power amplifier by Kucera, J., Lott, U.

“…A monolithic integrated front end for 1.9 GHz wireless applications has been designed and tested. On a single chip, a low noise amplifier, mixer and local…”
Get full text

A new antenna switching architecture for mobile handsets by Kucera, J., Lott, U., Bachtold, W.

“…A new antenna switching principle reduces the insertion loss in the transmit path of mobile equipment while avoiding bulky external components such as pin…”
Get full text

Low supply voltage high efficiency MMIC oscillator at C-band by Ellinger, F., Lott, U., Bachtold, W.

“…A monolithically integrated voltage controlled class-E oscillator for the C-band has been designed. The oscillator is optimized for high efficiency at ultra…”
Get full text

Ultra low power GaAs MMIC low noise amplifier for smart antenna combining at 5.2 GHz by Ellinger, F., Lott, U., Bachtold, W.

“…A switchable GaAs MMIC cascode low noise amplifier for smart antenna combining at 5.2 GHz (HIPERLAN) is presented using a standard 0.6 /spl mu/m MESFET…”
Get full text

UMTS Base Station-like Exposure, Well-Being, and Cognitive Performance by Regel, Sabine J., Negovetic, Sonja, Röösli, Martin, Berdiñas, Veronica, Schuderer, Jürgen, Huss, Anke, Lott, Urs, Kuster, Niels, Achermann, Peter

“…Background: Radio-frequency electromagnetic fields (RF EMF) of mobile communication systems are widespread in the living environment, yet their effects on…”
Get full text

Triple input single chip diversity LNA by Lott, U.

“…For mobile terminals using antenna diversity, a prototype monolithic integrated triple input low noise amplifier (LNA) with diversity function has been…”
Get full text

A 5.2 GHz variable gain LNA MMIC for adaptive antenna combining by Ellinger, F., Lott, U., Bachtold, W.

“…A variable gain LNA was designed for HIPERLAN I. A noise figure of only 1.7 dB is measured at a gain of 14.5 dB and a power consumption of 9 mW (V/sub DC/=3 V,…”
Get full text

Low DC power monolithic low noise amplifier for wireless applications at 5 GHz by Lott, U.

“…A two stage monolithic integrated low noise amplifier for applications in the wireless data frequency range of 5 to 6 GHz has been designed. A noise figure of…”
Get full text

Novel design topology for ultra low power down converters with broadband on chip matching network by Schmatz, M.L., Lott, U., Baumberger, W., Baechtold, W.

“…A novel design topology for ultra low power receivers and down converters has been developed. Using this topology, a monolithic L-band down converter…”
Get full text

Technology independent degradation of minimum noise figure due to pad parasitics by Biber, C.E., Schmatz, M.L., Morf, T., Lott, U., Morifuji, E., Bachtold, W.

“…In order to investigate the influence of pad parasitics on device noise performance, noise parameters on Si CMOS, GaAs MESFET and GaAs p-HEMT transistors were…”
Get full text

PCS amplifier with integrated power control by Bos, T.A., Lott, U.

“…A novel power control concept has been applied to a monolithic integrated power amplifier for the PCS/PCN frequency range of 1.9 to 2.4 GHz. At 3.3 V supply…”
Get full text

Passive, coplanar V-band HEMT mixer by Schefer, M., Lott, U., Patrick, W., Meier, H., Bachtold, W.

“…A passive V-band mixer is presented which uses an InP HEMT for mixing. The measured minimum conversion loss is 10.3 dB (RF 61 GHz, LO 60 GHz) with an LO power…”
Get full text