Abstract: A system and method for ensuring proper synchronization of a plurality of frequency sources used in reception diversity-based radio reception. The frequency sources are concatenated in a synchronization loop, through which one frequency source having a high performance oscillator is configured as a master source. Through its oscillator, the master provides an internal synchronization signal that synchronizes all other sources, which have lower performance oscillators and are configured as slaves. Upon a failure in the master oscillator or in the synchronization loop, a slave source takes over as an alternative master source and provides its internal oscillator signal as an alternative synchronization signal to all other frequency sources.
Type:
Grant
Filed:
July 26, 2007
Date of Patent:
November 23, 2010
Assignee:
Mobile Access Networks Ltd.
Inventors:
Ofer Saban, Isaac Shapira, Rami Reuveni, Yair Shapira
Abstract: Methods and systems for carrying different signals required for MIMO communication using a single coaxial cable between two endpoints of a distributed antenna system (DAS) network. Original MIMO signals having the same frequency are frequency-separated at a first endpoint of the network. The frequency-separated signals are propagated together over the single coaxial cable and then reconstructed to their original frequency at a second endpoint of the network.
Type:
Grant
Filed:
January 25, 2009
Date of Patent:
October 26, 2010
Assignee:
Mobile Access Networks Ltd.
Inventors:
Isaac Shapira, Ofer Saban, Yehuda Holtzman, Dror Harel
Abstract: A wide band indoor antenna includes a low band section with four modified spiral (MSE) elements, a high band section with a bent folded monopole (BFM) radiator mounted on a ground plane and a feeding plate for feeding the low band section and the high band section via a diplexer. The BFM radiator mounted on the ground plane can serve independently as a high frequency monopole antenna.
Abstract: Methods and systems for carrying different signals required for MIMO communication using a single coaxial cable between two endpoints of a distributed antenna system (DAS) network. Original MIMO signals having the same frequency are frequency-separated at a first endpoint of the network. The frequency-separated signals are propagated together over the single coaxial cable and then reconstructed to their original frequency at a second endpoint of the network.
Type:
Grant
Filed:
February 6, 2008
Date of Patent:
January 27, 2009
Assignee:
Mobile Access Networks Ltd.
Inventors:
Isaac Shapira, Ofer Saban, Yehuda Holtzman, Dror Harel
Abstract: A wide band indoor antenna includes a low band section with four modified spiral (MSE) elements, a high band section with a bent folded monopole (BFM) radiator mounted on a ground plane and a feeding plate for feeding the low band section and the high band section via a diplexer.