A Novel Hybrid-Fed Patch Antenna With Pattern Diversity

Dual band and dual polarization short-circuited ring patch antenna

“…González-Posadas et al [5] presented a study of the SCRP antenna based on the cavity model with special attention to the fundamental mode TM 01 . Therefore, making use of these two modes, this antenna can be used as a dual frequency dual mode antenna for applications such as a dual GSM-GPS antenna or for WLAN applications, [6] among others. Therefore, the lower band has a "monopolar" radiation pattern associated to the TM 01 mode and the upper band has a broadside radiation pattern associated to the CONTACT Raúl Fernández-Recio rfrecio@etsist.upm.es TM 11 mode.…”

Low Profile Pattern Diversity Antenna Using Quarter-Mode Substrate Integrated Waveguide

“…The switching diodes and varactor diode needs dc bias circuits, which increase the design complexity and fabrication cost of the antenna. In [14][15][16], a circular patch exited in TM 11 and TM 01 mode for broadside and conical pattern has been proposed. Shorting pins are used to excite the two resonant modes at the same frequency in [14].…”

“…However, this configuration requires complex feed and matching network and also larger antenna size. A hybrid feed network has been proposed in [15] to excite the patch. In [17], the even and odd modes of a shorted patch have been exited using rat-race feeding network to get pattern diversity.…”

A Compact UWB and Bluetooth Slot Antenna for MIMO/Diversity Applications

“…Among them, by using multiple directional beams to obtain independent signals, pattern diversity techniques are very applicable in mobile Manuscript terminals due to their easy designs and fabrications, which use different radiation patterns to improve channel fading and the transmission quality of the mobile terminals (for example, orthogonal radiation patterns and symmetrical radiation patterns) [3]. Moreover, it is an efficient way to reduce antenna size.…”