"omnidirectional antennas"

Simple antenna structure enabling the simultaneous excitation of two different polarisation and radiation modes

A simple antenna structure able to simultaneously generate two different polarisation and radiation modes is proposed. In addition to a good impedance matching all over multiple bands, antennas based on the proposed geometry can exhibit a linearly …

Low-profile multimode antenna for vehicular applications

This paper presents a multimode antenna operating over the GSM, GPS and WIFI bands. The antenna exhibits an omnidirectional radiation diagram in the GSM band and a directive pattern at the GPS frequency. In addition, the proposed antenna has a …

Design of light and low-profile antennas for vehicular applications

In this paper, an approach for the design of antennas suitable for vehicular applications is presented. The resulting solutions are light, low-profile and they exhibit good impedance match and omnidirectional radiation pattern over the band of …

Compact low-profile omnidirectional surface wave antenna for UMTS applications

This paper presents a compact low-profile surface wave antenna for UMTS applications. It shows good impedance match and dipole-like omnidirectional radiation pattern over the band of interest. Numerical and experimental results are reported to …

Light and Low-Profile GSM Omnidirectional Antenna

In this letter, an antenna operating over the GSM band is proposed. Thanks to the use of a foam material as dielectric substrate, the prototype of this antenna is particularly light. It has a very low profile with overall dimensions equal to 0.31λ × …