TY - GEN
T1 - Numerical analysis of a dual-spiral printed antenna
AU - Nakano, H.
AU - Hirose, K.
PY - 1993/12/1
Y1 - 1993/12/1
N2 - A dual-spiral antenna printed on a dielectric substrate is numerically analysed. The radiation characteristics such as the radiation pattern, axial ratio, and radiation efficiency are calculated on the basis of the current distribution. It is revealed that, when the dielectric substrate allows only a single surface wave mode to exist, the dual-spiral antenna has a high radiation efficiency (73%) over a wide frequency range (8.4 %), radiating a circularly polarised wave. Further calculation show that the radiation efficiency rapidly decreases, when a second surface wave mode (TE1) appears.
AB - A dual-spiral antenna printed on a dielectric substrate is numerically analysed. The radiation characteristics such as the radiation pattern, axial ratio, and radiation efficiency are calculated on the basis of the current distribution. It is revealed that, when the dielectric substrate allows only a single surface wave mode to exist, the dual-spiral antenna has a high radiation efficiency (73%) over a wide frequency range (8.4 %), radiating a circularly polarised wave. Further calculation show that the radiation efficiency rapidly decreases, when a second surface wave mode (TE1) appears.
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M3 - Conference contribution
AN - SCOPUS:0027876708
SN - 0852965710
T3 - IEE Conference Publication
SP - 651
EP - 654
BT - 1993 Eighth International Conference on Antennas and Propagation
A2 - Anon, null
PB - IET
T2 - 8th International Conference on Antennas and Propagation. Part 2 (of 2)
Y2 - 30 March 1993 through 2 April 1993
ER -