Microwave Journal
www.microwavejournal.com/articles/29630-rfs-launches-compact-small-cell-diplexer
RFS Diplexer

RFS Launches Compact Small Cell Diplexer

January 15, 2018

Radio Frequency Systems (RFS) has released its FDPL Series of ShareLite™ PCS, AWS, WCS and 2.5 GHz small cell diplexers. This is the company’s first product in a complete line of small cell multiplexers that are designed for maximum performance with the smallest size and lowest weight available in the industry, according to RFS. Suitable for use in small cell applications, FDPL Series diplexers allow 4 x 4 MIMO in the PCS, AWS, WCS and 2.5 GHz bands and provide best-in-class PIM levels (−161 dBc), while minimizing the space required in tight small cell enclosures.

Single, dual and quad configurations are available in both side-by-side and stacked configurations, for maximum installation flexibility. RFS’ cavity filter design provides very low insertion loss while keeping the product compact and lightweight. Using highly selective filters guarantees a high isolation of 40 dB between ports, ensuring an interference-free environment for any technology deployed.

Designed to withstand the most severe outdoor environments, RFS diplexers also feature IP67 class protection with a vented enclosure to avoid any possible effects of condensation and pressure instability, providing a long-lasting, extremely reliable solution for any network. The filter design also has built-in lightning protection for additional reliability. 4.3-10 connectors are standard.

More Bands in Less Space

Small cell and distributed antenna solutions (DAS) networks have become increasingly important as U.S. operators strive to keep up with capacity demands by deploying new spectrum. Providing optimal coverage in high-traffic venues — airports, office buildings, campuses, stadiums, convention centers, hotels, transit systems — can be difficult, yet is expected by mobile device users.

As a result, operators are densifying their 4G LTE networks, providing in-building networks to supplement the outdoor macro networks. As deploying in hundreds of separate venues can be financially unrealistic and aesthetically undesirable for the property owner, “neutral host” networks are emerging as a solution to this problem.

Andrzej Stanek, global product line manager for RF filters at RFS, said, “Neutral host carriers have the ability to serve a wide range of venue types where one infrastructure for all mobile operators is preferable. In these scenarios, small cells increase capacity and extend coverage outdoors, and DAS networks support high traffic indoor venues. We are pleased to introduce small cell multiplexers that deliver the best performance with the smallest size in the industry. Our multiple small form factors will not only allow site integrators the flexibility they need when space is at a premium in the latest small cell/in-building deployments, but can also reduce leasing costs in macro site deployments.”