Applications of Superconductivity for Implementation of Phase Conjugation in the Microwave Region
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This paper extends a preliminary proposal and description of a superconductivity-based phase conjugating antenna for operation in the microwave range. The complementary properties of high-temperature superconductors and other oxide functional materials are emphasised. The potential applications of such an antenna are very wide. We consider the requirements for the Josephson junction which is at the heart of the phase conjugation operation, especially issues of the use of the internal Josephson oscillation or of an external signal to provide the local oscillator requirement. Other design requirements are also explored and the necessary substrate properties are set out which enable suitable junction properties, as well as phase shifter and interconnection functions.
Keywordsmicrowave phase conjugation superconductors oxide functional materials
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