| 1. |
- Kollberg, Erik, 1937, et al.
(author)
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Quantum-Barrier-Varactor Diodes for High-Efficiency Millimetre-Wave Multipliers
- 1989
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In: Electronics Letters. - : Institution of Engineering and Technology (IET). - 1350-911X .- 0013-5194. ; 25:25, s. 1696-1698
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Journal article (peer-reviewed)abstract
- A new device, the quantum-barrier-varactor diode (QBV diode), is proposed for use in multipliers for millimetre waves. Since the capacitance/voltage characteristic is symmetric, only odd harmonics are obtained. Hence there is no idler circuit to consider for the tripler and only one for the quintupler. It is shown that for triplers and quintuplers, the theoretical efficiency using QBVs is comparable or possibly larger than using Schottky varactor diodes.
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| 2. |
- Winkler, Dag, 1957, et al.
(author)
-
A sub-mm wave quasiparticle receiver for 750 GHz-progress report
- 1986
-
In: Proceedings of the SPIE - The International Society for Optical Engineering. - 0277-786X. ; 598, s. 33-38
-
Conference paper (peer-reviewed)abstract
- The authors have designed a sub-mm wave receiver using superconducting edge tunnel junctions (SIS/SIN). The mixer is subharmonically pumped at about 375 GHz, whereas the signal frequency is at twice this frequency. The local oscillator and the signal are both coupled to a constant width slot antenna, and via an exponential tapering to an array of two junctions coupled in series across a slotline. Design and preliminary results are discussed
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| 3. |
- Winkler, Dag, 1957, et al.
(author)
-
On the feasibility of constructing an imaging array of slot-antennas integrated with SIS mixers
- 1986
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In: Proceedings of an ESA Workshop on a Space-Borne Sub-Millimetre Astronomy Mission. ; , s. 277-283
-
Conference paper (peer-reviewed)abstract
- Several important developments have been made for the realization of array mixer receivers for imaging in radio astronomy: preliminary experiments on a 700 GHz SIS mixer have been performed and imaging at 31 GHz using an array of tapered slot antennas equipped with diode detectors has been demonstrated. These developments are briefly described
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