TY - JOUR
T1 - Aperture antennas on probe-fed hemispherical metallic cavities
AU - Leung, K. W.
AU - Lam, H. Y.
PY - 2006/11
Y1 - 2006/11
N2 - Aperture antennas cut onto probe-fed hemispherical cavities are investigated theoretically and experimentally. The result is valid for any aperture position and width. The operating frequencies of the antennas are primarily controlled by the resonant modes of the hemispherical cavity, with the input impedances easily matched by changing the probe length and/or aperture size. When the probe length and aperture size are designed properly, a very wide bandwidth of ∼45% can be obtained. This bandwidth is nearly twice that of a bare monopole. The calculations are verified by measurements. © 2006 IEEE.
AB - Aperture antennas cut onto probe-fed hemispherical cavities are investigated theoretically and experimentally. The result is valid for any aperture position and width. The operating frequencies of the antennas are primarily controlled by the resonant modes of the hemispherical cavity, with the input impedances easily matched by changing the probe length and/or aperture size. When the probe length and aperture size are designed properly, a very wide bandwidth of ∼45% can be obtained. This bandwidth is nearly twice that of a bare monopole. The calculations are verified by measurements. © 2006 IEEE.
KW - Coaxial probe
KW - Method of moments (MoM)
KW - Resonant cavity
KW - Slot antenna
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U2 - 10.1109/TAP.2006.884308
DO - 10.1109/TAP.2006.884308
M3 - RGC 21 - Publication in refereed journal
SN - 0018-926X
VL - 54
SP - 3556
EP - 3561
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 11
ER -