[nl/includes/top.htm]
[nl/includes/leftnav.html]

Distributed Antenna Systems (DAS)Developments

The first mobile networks were designed to cover the largest possible area with the fewest base stations and cellular towers. When mobile services primarily used 850 MHz frequencies this strategy worked well because signals at these low frequencies easily penetrate buildings. But three developments have caused this strategy to become less effective:

* Consumers whose mobile phone usage was primarily in cars or outdoor areas now use them inside buildings and other structures.
* Roll out of 2.5 and 3G services, which generally operate at 1.9 or 2.1 GHz (with 2.5 and 3GHz WiMAX and LTE services in the wings). These higher frequencies don't penetrate buildings as much as the lower frequencies.
* The advent of 2.5 and 3G services is enabling users to watch video, check e-mail, play games, and do other things that typically happen inside buildings. This is also increasing bandwidth demand.

As new WiMAX and LTE wireless services are deployed the need will continue to grow for DAS products. Renaissance has the appropriate products to support centralized base stations: a) 15C2NM Universal
Radio Frequency distributed antenna system operating from 2.496 to 2.690 GHz.

Click here for 15C2NM Datasheet

b) Renaissance has two circulators that support the wireless cellular
frequencies that are used in DAS systems and multicouplers. The
lower part of the band is addressed by the 3A2NCP while the
3A4BN will provide coverage through the 2.7 GHz WiMAX band.

Click here for 3A2NCP Datasheet
Click here for 3A4BN Datasheet

If you have a specific band of operation that is not covered please contact REC sales and a new model can be developed for your application. Frequency bands used in USA

System Frequency (MHz)
SMR iDEN 806-824 and 851-869

AMPS, GSM, IS-95 (CDMA), 824-849, 869-894,
IS-136 (D-AMPS) 896-901, 935-940

GSM, IS-95 (CDMA), IS-136 (D-AMPS) 1850-1910 and 1930-1990
3G 700 range
1432-1435
1710-1755
2110-2170
2500-2690

UMTS/HSDPA/HSUPA frequency bands deployment
Band I (W-CDMA 2100) in Europe, Africa, Asia, Oceania
(ITU Region 1)
Band II (W-CDMA 1900) in North America and South America
(ITU Region 2)
Band IV (W-CDMA 1700 or Advanced Wireless Services) in the United States (T-Mobile)
Band V (W-CDMA 850) in America, Canada, parts of South America, parts of Asia (ITU Region 2 and ITU Region 3)
Band VIII (W-CDMA 900) in Europe, Asia, Oceania (ITU Region 1
and ITU Region 3)


R3G4NWM-RoHS WiMax Circulator

IP3 performance of this 2.5 GHz circulator has been improved. This will allow Base Station Transceiver developers to achieve greater system gain. REC has modified the design and manufacturing process to obtain greater than 80 dBC IP3.

Click here for R3GNWM Datasheet


10A2BZ-4S Four Way Combiner/Divider

Development of a new 4-way combiner was completed this month. The 10A2BZ-4S has four inputs with a total power handling of 200W over the 400 - 500 MHz frequency range in a compact size of 3.5" x 4.5" x 0.94".

Click here for 10A2BZ-4S Datasheet


Customer Service

Customer surveys help suppliers gauge customer requirements and satisfaction. An effective Customer Satisfaction Survey can gather critical information from customers about products and services. Customer retention significantly depends on the quality of customer service.

Our primary goal at Renaissance is to keep our customers and keep them satisfied. Customer satisfaction surveys are sent quarterly to customers who have received a shipment during the previous three months. Please help us by responding to the next customer satisfaction survey that you get.

Thanks!

May/June
2008 New

Distributed Antenna Systems

WiMAX Circulator

4-Way Power Combiner/Divider

Customer Service

 
     

 

 

[nl/includes/rightnews.htm]  
[nl/includes/footer.htm]