@article {4_Omni_antenna_parasiticstripsMOTL,
	title = {Circularly polarized omnidirectional millimeter wave monopole with parasitic strip elements},
	journal = {Microwave and Optical Technology Letters},
	volume = {49},
	number = {3},
	year = {2007},
	month = {Mar.},
	pages = {664-668},
	abstract = {A circularly polarized omnidirectional millimeter wave monopole with parasitic strip elements for a system of arrival signal direction detection in millimeter band is presented. As a consequence of the radiation pattern requirements, the proposed antenna consists of a conical skirt monopole with a polarizer radome. The polarizer converts a wave from linear to circular polarization. The proposed antenna has the advantage to be robust, low cost, and easy to fabricate with conventional materials and printed circuit technology. The study presents simulation and experimental results obtained with an antenna prototype that validate the design.},
	keywords = {arrival signal direction detection system, Circular polarization, millimeter antenna, omnidirectional antenna},
	issn = {0895-2477},
	doi = {10.1002/mop.22237},
	url = {http://onlinelibrary.wiley.com/doi/10.1002/mop.22237/abstract},
	author = {Fern{\'a}ndez, J M and J L Masa-Campos and Sierra-P{\'e}rez, M}
}
@article {5_Omni_antenna_slotsMOTL,
	title = {Omnidirectional circularly polarized slot antenna fed by a cylindrical waveguide in millimeter band},
	journal = {Microwave and Optical Technology Letters},
	volume = {49},
	number = {3},
	year = {2007},
	month = {Mar.},
	pages = {638-642},
	abstract = {A circularly polarized slotted array antenna is presented. The array is fed by a circular waveguide propagating the TM01, to properly generate the required polarization. An omnidirectional azimuth radiation pattern is obtained, as well as a ?10{\textdegree}/+30{\textdegree} elevation antenna coverage. Low losses are achieved because of the waveguide feed. The slot array is mechanized over the metallic wall of the circular waveguide. Furthermore, the antenna presents a solid and rigid mechanical structure, which guarantees an optimum and repetitive response in a manufacturing process. A prototype antenna has been designed and measured. Satisfactory results have been obtained. The slotted array takes part from a signal detection system centered in 36.85 GHz.},
	keywords = {Circular polarization, conformal slotted waveguide array, transversal magnetic mode, waveguide to coaxial transition},
	issn = {0895-2477},
	doi = {10.1002/mop.22207},
	url = {http://onlinelibrary.wiley.com/doi/10.1002/mop.22207/abstract},
	author = {J L Masa-Campos and Fern{\'a}ndez, J M and Sierra-P{\'e}rez, M}
}
