Title :
A 24-GHz high-gain Yagi-Uda antenna array
Author :
Grajek, Phillip R. ; Schoenlinner, Bernhard ; Rebeiz, Gabriel M.
Author_Institution :
Electr. Eng. & Comput. Sci. Dept., Univ. of Michigan, Ann Arbor, MI, USA
fDate :
5/1/2004 12:00:00 AM
Abstract :
A compact 24-GHz Yagi-Uda antenna has been developed using standard design tables and simple scaling to take into account the added capacitance due to the supporting dielectric substrate. The antenna results in a directivity of 9.3 dB, a front-to-back ratio of 11 dB, and a bandwidth of 2.5-3%. The Yagi-Uda antenna has been implemented in an 11-beam system using a planar array and a 2-inch Teflon spherical lens. The measured patterns show a 22 dB gain beam, a cross-polarization level of -24 dB, and a crossover level of -6 dB. The design method presented in this paper is quite straightforward, and can be used to develop low-, medium-, and even high-gain endfire Yagi-Uda antennas.
Keywords :
Yagi antenna arrays; antenna radiation patterns; microwave antenna arrays; millimetre wave antenna arrays; multibeam antennas; planar antenna arrays; polarisation; 22 dB; 24 GHz; Teflon spherical lens; antenna directivity; antenna patterns; cross-polarization level; dielectric substrate; endfire antenna; front-to-back ratio; high-gain Yagi-Uda antenna array; microwave antennas; millimeter-waves antenna; multiple beam system; planar array; Antenna arrays; Antenna measurements; Bandwidth; Capacitance; Dielectric measurements; Dielectric substrates; Gain measurement; Lenses; Planar arrays; Standards development; Endfire antenna; Yagi–Uda antenna; millimeter-waves; multiple beam systems;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2004.827543
