Schottky diode as high-speed variable impedance load in six-port modulators
2011 (English)In: ICUWB 2011: 2011 IEEE International Conference on Ultra-Wideband (ICUWB), 2011, 68-71 p.Conference paper, Presentation (Refereed)
The use of Schottky diodes as high-speed variable impedance loads in six-port modulators are proposed and analyzed in this paper. The impedance dependency of diode parameters and local oscillator power are investigated by theoretical analysis and simulations. A prototype for a direct carrier six-port modulator using Schottky diodes for impedance generation is designed and fabricated for a center frequency of 7.5 GHz. Measurements show good modulation properties when a 16 quadrature amplitude modulation signal at 300 Msymbol/s is generated, i.e., at a data rate of 1.2 Gbit/s, validating the use of Schottky diodes as high-speed variable impedance loads in six-port modulators.
Place, publisher, year, edition, pages
2011. 68-71 p.
, IEEE International Conference on Ultra- Wideband (ICUWB), ISSN 2162-6588 ; 2011
Schottky diodes, electric impedance measurement, modulators, oscillators, quadrature amplitude modulation
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-77196DOI: 10.1109/ICUWB.2011.6058924ISBN: 978-1-4577-1762-8 (online)ISBN: 978-1-4577-1763-5 (print)OAI: oai:DiVA.org:liu-77196DiVA: diva2:525484
IEEE International Conference on Ultra-Wideband (ICUWB),14-16 September, 2011, Bologna, Spain