In this paper a single balanced mixer, suitable for K band applications, is described. The prototype is realized using an InP process and it is based on heterojunction interband tunnel diodes (HITDs). The circuit, consisting of a pair of HITDs connected to a coplanar Lange coupler, is optimized by a proper diode scaling in the 19-26 GHz band, providing an IF ranging from zero up to 7 GHz. Measurements highlight a conversion loss ranging from 6 dB to 10 dB and an IIP3 of 8 dB in the desired band. Due to the diodes characteristic no DC supply is needed and the functionality is achieved with a LO power of -2 dBm. The results also show a good agreement between the experimental data and simulations.
A ultra low-power highly-linear HITD based down-converter for K-band applications / Magrini, I.; Camprini, M.; Cidronali, A.; Collodi, G.; Manes, G.. - STAMPA. - (2005), pp. 73-76. (Intervento presentato al convegno Gallium Arsenide and Other Semiconductor Application Symposium, 2005 tenutosi a Paris nel 3-4 Oct. 2005).
A ultra low-power highly-linear HITD based down-converter for K-band applications
MAGRINI, IACOPO;CIDRONALI, ALESSANDRO;COLLODI, GIOVANNI;MANES, GIANFRANCO
2005
Abstract
In this paper a single balanced mixer, suitable for K band applications, is described. The prototype is realized using an InP process and it is based on heterojunction interband tunnel diodes (HITDs). The circuit, consisting of a pair of HITDs connected to a coplanar Lange coupler, is optimized by a proper diode scaling in the 19-26 GHz band, providing an IF ranging from zero up to 7 GHz. Measurements highlight a conversion loss ranging from 6 dB to 10 dB and an IIP3 of 8 dB in the desired band. Due to the diodes characteristic no DC supply is needed and the functionality is achieved with a LO power of -2 dBm. The results also show a good agreement between the experimental data and simulations.
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