Premium quality Low-PIM MIMO Antenna (50 Ohm) for DAS Cellular 2G, 3G, 4G, LTE has two independent spatial diversity antennas and can be used in MIMO DAS installations. MIMO stands for "multiple-in and multiple-out" and DAS stands for "distributed antenna system". PIM stands for "passive intermodulation" (explained in detail at bottom). This is our premium signal booster custom pallet # 7 inventory item: Low-PIM MIMO Antenna (50 Ohm) for DAS Cellular 2G, 3G, 4G, LTE with UPC 697691010441.

This High Performance Ceiling Antenna provides wide, omnidirectional, indoor coverage. With its wideband frequency range, it is ideal for use in in-building wireless DAS networks that distribute Cellular and WiFi signals through an area or building.

Its sleek low profile white radome blends in with the typical commercial or home office environment. No backing plate is required for mounting as it is mounted directly through a small hole in a suspended ceiling tile. Two 9 inch plenum rated antenna leads with low PIM are terminated with high-quality N-Female connectors. Custom connectors, including 7/16 DIN, are available.

Features.

• Wide Band Frequency Coverage (698-2700 MHz).
• Low Profile Blends into any Decor.
• Mounts to Ceiling Tile Easily.
• Custom Connectors Available.
• Mounts to Ceiling Tile Easily.
• Unobtrusive, attractive radome.
• Broad Omnidirectional Coverage.
• 50 Ohm N Female Connector.
• Low-PIM Design Reduces Signal Interference.

Applications.

• WiMAX and IEEE 802.11b/g/n WiFi.
• Distributed Antenna Systems (DAS).
• Wireless 3G / 4G LTE Networks (In-building).
• Covered outdoor areas (ODAS).
• 700 MHz Cellular / PCS.
• 3G/4G LTE, GSM, UMTS, DCS and AWS-3.

Specifications:

What does Low-PIM Antenna Mean?

To understand what Low PIM antennas mean, we must first understand what is PIM or Passive Intermodulation.

What is PIM and What Causes It?

PIM stands for Passive Intermodulation. In wireless infrastructure, PIM is measured in dB's and typically occurs when two or more signals are present in a passive, non-linear element or device, such as a DAS solution. PIM occurs when signals mix together in elements typically expected to operate in a linear manner, thus generating unwanted signals related to the original signals.

PIM has become a growing concern for cellular network operators, with problems occurring due to the ageing of existing equipment, when installing new equipment, or when co-locating new carriers. It’s of particular concern when duplexing new carriers into old antenna runs.

This intermodulation distortion occurs in components typically described as linear, such as antennas, connectors, and cables. However, these devices are capable of generating intermodulation signals at -80 dBm and even higher when exposed to high RF powers found in cellular systems.

For cellular operators trying to maximize the reliability, capacity, and data rate of their network, not to mention their return on investment, PIM is a very serious issue.

As the industry decides on the new "standard" RF connector, let us look at the difference between low PIM and high PIM.

• Low PIM means happy customers and improved revenues for carriers, because users receive strong signals with more bandwidth.
• High PIM means lost customers for the carrier, because the end-user receives limited bandwidth and poor cellular reception.

What Does This Mean?

It means that, from a hardware point-of-view, the design intention of every connection must be to minimize PIM and all connections must be tested to ensure correct installation. PIM testing is all-important to both design and installation processes to ensure top performance from the system. With today’s high-speed digital data communications, PIM testing has become critical. Because high transmitter power creates PIM, on-site testing should be carried out either at, or above, regular transmitter power levels to ensure PIM issues will be revealed.