TY - GEN
T1 - Design of spherical meanderline antennas
AU - Adams, Jacob J.
AU - Duoss, Eric B.
AU - Malkowski, Thomas F.
AU - Lewis, Jennifer A.
AU - Bernhard, Jennifer T.
PY - 2011
Y1 - 2011
N2 - We present a new study of an electrically small spherical antenna with Q approaching the lower bound. The structure is a natural successor to earlier work by some of the present authors [1] and is designed to excite the TM 10 spherical mode for minimum Q. This new topology consists of meanderline arms entirely conformal to a spherical surface, facilitated by a precise conformal printing technique. Measurements of some antenna prototypes are presented in [2] but without a complete discussion of the electromagnetic design considerations. Here, we discuss details of the design parameters, material choices and a technique for mitigating the excitation of higher order modes which disrupt the impedance behavior of the structure. The presentation will include measured results of antennas at several different electrical sizes printed on both the concave and convex surface of a hemisphere.
AB - We present a new study of an electrically small spherical antenna with Q approaching the lower bound. The structure is a natural successor to earlier work by some of the present authors [1] and is designed to excite the TM 10 spherical mode for minimum Q. This new topology consists of meanderline arms entirely conformal to a spherical surface, facilitated by a precise conformal printing technique. Measurements of some antenna prototypes are presented in [2] but without a complete discussion of the electromagnetic design considerations. Here, we discuss details of the design parameters, material choices and a technique for mitigating the excitation of higher order modes which disrupt the impedance behavior of the structure. The presentation will include measured results of antennas at several different electrical sizes printed on both the concave and convex surface of a hemisphere.
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U2 - 10.1109/APS.2011.5996825
DO - 10.1109/APS.2011.5996825
M3 - Conference contribution
AN - SCOPUS:80055021565
SN - 9781424495634
T3 - IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
SP - 765
EP - 768
BT - 2011 IEEE International Symposium on Antennas and Propagation - Proceedings
T2 - 2011 IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, APSURSI 2011
Y2 - 3 July 2011 through 8 July 2011
ER -