TY - JOUR
T1 - Low profile, broadside radiating, electrically small huygens source antennas
AU - Ziolkowski, Richard W.
N1 - Funding Information:
Contributions to this work occurred while the author was the 2014-2015 Australian DSTO Fulbright Distinguished Chair in Advanced Science and Technology. He especially would like to thank the Australian-American Fulbright Commission and the Defense Sciences and Technology Group (formally DSTO) for their support.
Publisher Copyright:
© 2015 IEEE.
PY - 2015/12/4
Y1 - 2015/12/4
N2 - It is demonstrated numerically that a metamaterial-inspired, low profile (height approximately A/80), electrically small (ka = 0.45) Huygens source antenna can be designed to radiate at 300 MHz in its broadside direction with a high radiation efficiency and a large front-to-back ratio. Two electrically small, near-field resonant parasitic (NFRP) antennas are first designed. Both are based on a coax-fed dipole antenna. An electric dipole response is obtained by combining it with a tunable Egyptian axe dipole (EAD) NFRP element. A magnetic dipole response is obtained by spatially loading the driven dipole with tunable, extruded capacitively loaded loop (CLL) NFRP elements. The driven dipole and the EAD and CLL NFRP elements are combined together and retuned to achieve a broadside radiating Huygens source antenna. Two different designs, one with two CLL elements and one with four, are obtained, and their performance characteristics are compared.
AB - It is demonstrated numerically that a metamaterial-inspired, low profile (height approximately A/80), electrically small (ka = 0.45) Huygens source antenna can be designed to radiate at 300 MHz in its broadside direction with a high radiation efficiency and a large front-to-back ratio. Two electrically small, near-field resonant parasitic (NFRP) antennas are first designed. Both are based on a coax-fed dipole antenna. An electric dipole response is obtained by combining it with a tunable Egyptian axe dipole (EAD) NFRP element. A magnetic dipole response is obtained by spatially loading the driven dipole with tunable, extruded capacitively loaded loop (CLL) NFRP elements. The driven dipole and the EAD and CLL NFRP elements are combined together and retuned to achieve a broadside radiating Huygens source antenna. Two different designs, one with two CLL elements and one with four, are obtained, and their performance characteristics are compared.
KW - Directivity
KW - Electrically small antennas
KW - Huygens source
KW - Metamaterial-inspired antennas
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U2 - 10.1109/ACCESS.2015.2505726
DO - 10.1109/ACCESS.2015.2505726
M3 - Article
AN - SCOPUS:84961372957
VL - 3
SP - 2644
EP - 2651
JO - IEEE Access
JF - IEEE Access
SN - 2169-3536
M1 - 7347329
ER -