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Machine translation
1. (WO1981003087) TEMPERATURE-STABLE MICROWAVE INTEGRATED CIRCUIT DELAY LINE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/003087    International Application No.:    PCT/US1981/000543
Publication Date: 29.10.1981 International Filing Date: 27.04.1981
IPC:
H01P 1/30 (2006.01), H01P 9/00 (2006.01)
Applicants:
Inventors:
Priority Data:
143682 25.04.1980 US
Title (EN) TEMPERATURE-STABLE MICROWAVE INTEGRATED CIRCUIT DELAY LINE
(FR) LIGNE DE TEMPORISATION A CIRCUIT INTEGRE A MICRO-ONDES AYANT UNE TEMPERATURE STABLE
Abstract: front page image
(EN)A temperature-stable microwave integrated circuit (MIC) delay line (10) employs at least two cascade connected dielectric substrates (12, 14), for example, a high dielectric barium tetratitanate (Ba- Ti409) ceramic microstrip (22), and a short sapphire single crystal Al203 microstrip section (26). Temperature changes in the transmission phase are compensated for by selecting the substrate materials such that the positive transmission phase temperature coefficient of one substrate is effectively cancelled out by the negative transmission phase temperature coefficient of the other sub-strate. In this manner, the transmission delay temperature coefficient of the composite delay line may be reduced to a value of 0.6(+- 0.3) x 10- 6 parts per degree C. at 14 GHz over the temperature range of 20 degrees C. +- 30 degrees C.
(FR)Une ligne de temporisation (10) a circuit integre a micro-ondes (MIC) a temperature stable utilise au moins deux substrats dielectriques connecte, en cascade (12, 14), par exemple une micro-bande de ceramique (22) de tetra titanate de baryum (BaTl4O9) ayant des caracteristiques dielectriques elevees, et une section de micro-bande (26) a un seul cristal de Al2O3 de saphir court. Les changements de temperature de la phase de transmission sont compenses en selectionnant les materiaux des substrats de telle sorte que le coefficient de temperature de la phase de transmission positive d'un substrat soit effectivement annule par le coefficient de temperature de la phase de transmission negative de l'autre substrat. De cette maniere, le coefficient de temperature de temporisation de transmission de la ligne de temporisation composite peut etre ramene a une valeur de 0,6 (+- 0,3) x 10-6 parties par degre Celsius a 14 GHz sur une plage de temperature de 20 degres C. +- 30 degres C.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)