Cellular Dual Diversity MiMo for 4G LTE

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Monday, 29 October 2012

Cellular Dual Diversity MiMo for 4G LTE

Cellular antennas have played an important rule for a lot of consumers that live in areas with poor or no cellular signal. Carriers are now aggressively rolling out 4G LTE like Verizon Wireless, which already offer LTE in over 400 markets and other carriers like AT&T and Sprint trying to catch up. Unlike 3G connectivity, 4G LTE service takes advantage of MiMo (Multiple-input/Multiple-output) allowing you to use separate antennas for send and receive if your device supports dual antennas.

What is MiMo Dual Diversity?

MiMo technology can offer increased data throughput on both the downlink and uplink without requiring additional bandwidth or transmit power. Rather than having twice the transmit power MiMo allows the device to spread the transmit power across the antennas to achieve diversity gain to improve link reliability. To take advantage of MiMo in a 4G LTE area you’ll need an embedded solution, which allows you to insert a SIM card directly into a router to provide connectivity.

Below is a list of routers that support dual diversity MiMo:

What type of antennas are available?

To determine which type of antenna you’ll need the first question you should ask is if its for a fixed or mobile location. For a mobile application most customers decide to go with a 12” Mag Mount antenna that securely fastens to the vehicles metal roof. For fixed locations a 9.5” Full Band Omni is popular for areas where the cell tower locations are unknown and Directional Panel antennas are excellent for weak signal areas with NLOS (Non-Line of Sight). Just remember that in order to achieve dual diversity you will need to have two antennas connected instead of one.

Do I need two external antennas?

No, you can use the included antennas with the routers listed above and only attach one external antenna for enhanced downlink performance. We’ve found that a lot of customers that don’t necessarily need enhanced upload capability opt for this configuration to save on upfront costs. You can always add a secondary antenna into the configuration to get enhanced dual diversity and greater throughput on both the downlink and uplink.

What are the downlink/uplink frequencies?

  • Verizon Wireless 4G LTE: Uplink: 776-787 Mhz / Downlink: 746-757 Mhz
  • AT&T 4G LTE: Uplink: 728-746 MHz / Downlink: 698-716 MHz

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