Publications by Appel, Helmut

Jain, Manish, Appel, Helmut, Meier, Alexander and Wegscheider, Werner (2006) Semiconductor-superlattice oscillator with superlattices connected in parallel and series as active elements for generation of millimetre waves. IEE Proceedings - Microwaves, Antennas and Propagation 153 (5), pp. 441-446. Fulltext not available.

Jain, Manish, Appel, Helmut, Meier, Alexander, Wegscheider, Werner and Renk, Karl Friedrich (2006) Semiconductor-superlattice oscillator with superlattices connected in parallel and series as active elements for generation of millimetre waves. IEE Proceedings: Microwaves, Antennas & Propagation 153 (5), pp. 441-446. Fulltext restricted.

Renk, Karl Friedrich, Meier, Alexander, Stahl, Benjamin Ingo, Glukhovskoy, Anatoly, Jain, Manish, Appel, Helmut and Wegscheider, Werner (2005) Operation of a Bloch oscillator.

Häußler, Michael, Schomburg, Ekkehard, Batke, Jörg-Martin, Klappenberger, Florian, Weber, Alexander, Appel, Helmut, Renk, Karl Friedrich, Hummel, H., Stroebl, B., Pavelev, Dimitri and Koschurinov, Y. (2003) Millimetre-wave generation with semiconductor superlattice mounted in cavity fabricated by UV- photolithography and galvanoforming. Electronics Letters 39 (10), pp. 784-785. Fulltext not available.