Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Christoph Tzschoppe"'
Autor:
Christoph Tzschoppe, David Fritsche, Paul Starke, Koichi Ishida, Frank Ellinger, Tilo Meister
Publikováno v:
2018 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC).
This paper focuses on the review of leading-edge integrated radio frequency $(\mathrm{R}\Gamma)$ receiver chips for the wireless communication systems of the future. A 190 GHz silicongermanium bipolar complementary metal oxide semiconductor (SiGe BiC
Publikováno v:
2016 IEEE MTT-S Latin America Microwave Conference (LAMC).
In this paper a 6th order bandpass intermediate filter with a 10% settling time of 70 ns is presented. The filter is optimized to provide a short settling time for operation in a pulsed wake-up receiver. To the best of our knowledge, the presented wo
Publikováno v:
NORCAS
To create a fully integrated very low noise amplifier in CMOS technology without excessive power consumption, it is advantageous to combine the benefits of using a highly scaled technology and integrated coils. The low noise amplifier using a feedbac
Publikováno v:
2016 German Microwave Conference (GeMiC).
This paper presents the design and characterization of a fully-differential intermediate frequency (IF) filter based on an operational transconductance amplifier (OTA) with 6th order Butterworth bandpass characteristic. The designed 2-stage BiCMOS OT
Publikováno v:
2016 German Microwave Conference (GeMiC).
This paper presents a fully integrated active backscatter transponder for the use in a FMCW radar system for localization of passengers in sea in case of a ship sinking emergency. The active reflector tag is based on a cross-coupled oscillator circui
Publikováno v:
2016 German Microwave Conference (GeMiC).
This paper presents a novel combination of two fully integrated phase-locked loops (PLLs) to control the oscillation frequency and modulation frequency of a switched injection-locked oscillator (SILO). The SILO is used as an active reflector transpon
Publikováno v:
2015 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC).
This work presents a fully differential operational amplifier (opamp) design architecture, that achieves a high gain bandwidth at a low power consumption. For verification, the architecture is implemented in a low cost 180 nm bulk CMOS technology. Th
Publikováno v:
2015 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC).
In this paper continuous time high-performance current mirrors (CMs) based on series and parallel connected unity sized CMOS transistors suitable for low power applications are presented. It is shown that the proposed implementation techniques allow
Autor:
Frank Ellinger, Robert Wolf, Robert Paulo, Paolo Valerio Testa, David Ihle, Christoph Tzschoppe
Publikováno v:
2015 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC).
Conventional Doherty power amplifiers need a λ/4 transmission line at the input of the peak amplifier. This provides a 90 degree phase shift of the input signal to allow a phase correct combination at the output. In this paper a discrete Doherty pow
Publikováno v:
2015 IEEE 16th Annual Wireless and Microwave Technology Conference (WAMICON).
In this paper, we discuss layout problems encountered in power amplifiers with negative parallel feedback. We show how to reduce the risk of an unstable power amplifier (PA) by careful layouting without the use of additional elements and thus chip ar