Title :
Precise measurement of input impedance and radiation efficiency of small loop antennas
Author :
Ida, I. ; Fujisawa, T. ; Ito, K. ; Takada, J.-i.
Author_Institution :
Dept. of Electr. & Electron. Eng., Chiba Univ., Japan
fDate :
June 28 1993-July 2 1993
Abstract :
The precise measurement of the impedance characteristics of a small loop antenna has been proved to be possible by the repetition of experiments. Three different types of network analyzers, HP 8719A, 8753B, and 8753C were used in the experiments. It was confirmed that the uncertainty of each instrument does not significantly affect the measurement of the radiation efficiency of the small loop antenna. Good agreement has been obtained between calculated and measured values, considering the surface loss of the antenna.<>
Keywords :
electric impedance measurement; loop antennas; losses; network analysers; input impedance; measurement; network analyzers; radiation efficiency; repetition of experiments; small loop antennas; surface loss; uncertainty; Antenna measurements; Electrical resistance measurement; Impedance measurement; Instruments; Manufacturing; Measurement standards; Reflection; Rough surfaces; Size measurement; Surface resistance;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385568
