Supercooled and superconducting small-loop and dipole antennas

Author

Lancaster, M.J. ; Wu, Z. ; Maclean, T.S.M. ; Huang, Y.

Author_Institution

Sch. of Electron. & Electr. Eng., Birmingham Univ., UK

Volume

139

Issue

3

fYear

1992

fDate

6/1/1992 12:00:00 AM

Firstpage

264

Lastpage

270

Abstract

To assess the performance of electrically small antennas, the two most fundamental antennas, namely electric and magnetic dipoles, have been chosen for examination of their performance in a superconducting environment. Aspects of the two antennas and their matching networks that are discussed include efficiency, Q, input impedance, power gain, power handling and signal/noise ratio. Both transmitting and receiving performances are considered. Finally, experimental results for loop and dipole antennas constructed out of YBCO wire are presented and compared with their supercooled copper counterparts. In this, they show a significant improvement in efficiency

Keywords

antenna theory; dipole antennas; loop antennas; superconducting devices; supercooling; Cu; Q; SNR; YBCO wire; YBa₂Cu₃O_7-x; dipole antennas; efficiency; electric dipoles; electrically small antennas; input impedance; magnetic dipoles; matching networks; power gain; power handling; receiving performance; signal/noise ratio; superconducting loop antenna; supercooled antenna; transmitting performance;

fLanguage

English

Journal_Title

Microwaves, Antennas and Propagation, IEE Proceedings H

Publisher

iet

ISSN

0950-107X

Type

jour

Filename

143297