Small Cell Components

Abstract

Microlab understands the complexities, challenges, and design considerations associated with deployments of radio base-stations, distributed antenna systems (DAS), and Small Cell technologies. Microlab’s commitment to offer system designers and integrators with reliable off-the-shelf and custom solutions continues to be key in supporting the enhancement of the existing coverage and capacity of service providers.
Small Cell Components


Microlab Products
Microlab understands the complexities, challenges, and design considerations associated with deployments of radio base-stations, distributed antenna systems (DAS), and Small Cell technologies. Microlab’s commitment to offer system designers and integrators with reliable off-the-shelf and custom solutions continues to be key in supporting the enhancement of the existing coverage and capacity of service providers.

DCC Series®
  • DCC220-A01: Passive DAS Tray
  • DCC500-A01: Active DAS Tray

Multi-Band Combiners
  • BK-20 & BK-24: Wideband Diplexers
  • BK-21N & BK-62N: Cellular/WiFi Injectors
  • BK-26N: 3 GHz Diplexer
  • BK-27N: Cellular/WiFi-WiMax Injector
  • BK-36N: North America Band Triplexer
  • BK-37 series: 700/850/PCS-AWS Triplexer
  • BK-38N: Broadband Triplexer Filter
  • BK-41D/BK-41DW: Wireless Band Triplexer
  • BK-72: AWS/PCS Diplexer
  • BK-96 series: Wideband Quadraplexer

Directional Couplers
  • CK-10 series: Low PIM Directional Coupler
  • CP-10 series: Ultra-wideband, Low Loss Stripline Coupler

Hybrid Couplers 2x2, 3x3, and 4x4
  • CA-84: Low PIM 2x2 Hybrid Couplers
  • CA-88: Low PIM 2x2 Hybrid Combiner
  • CM-20: Low PIM, Low Loss 4 x 2 Hybrid Matrix
  • CM-80 series: Low PIM 3 x 3 Hybrid Matrix
  • CM-58/68/78/88 series: Low PIM 4 x 4 Hybrid Matrices

Microlab’s components deliver superior performance in the area of broadband frequency coverage, power handling, reliability, minimal loss and low PIM. Specific offerings for Small Cell applications include: neutral host and co-sitting combiner solutions, hybrid couplers and hybrid matrices, multi-band combiners, attenuators, RF terminations, RF power splitters and duplexers, as well as DCC series® DAS Carrier Conditioners for Low Power Output. Microlab products are available with N-Type, 7-16 DIN, 4.1-9.5 DIN (Mini-DIN) and SMA connectors.

Splitters, Dividers and Tappers
  • DN-x0F series: Multi-Band Signal Samplers
  • DN-x4 series: Multi-Band Unequal Splitters
  • DN-99 series: 40 dB QMA Tapper
  • Dx-08/16: Reactive Splitters
  • Dx-69FN/FF: Low Cost Power Dividers, In Line Outputs
  • Dx-72FN series: Low PIM Wilkinson Dividers
  • Dx-85: Low PIM Reactive Splitters

Attenuators and Terminations
  • FY series: Low PIM 10W Attenuators
  • TA/TB series: Low Cost Resistive Terminations
  • TK-21: 10W Low PIM Cable Loads
  • TK-25 series: Portable Low PIM Terminations

Other
  • BL series: Duplexers
  • JA: Low PIM, High Performance Jumper Cables, Straight
  • JB: Low PIM, High Performance Jumper Cables, Right-Angle
  • JC series: Low PIM Jumper Cables Right Angle to Right Angle Connectors

DCC Series®     

DCC Series®
Customized Passive and Active DAS tray designs to meet market specifications with short lead times. Multi-band trays for sector solutions.

Small Cell Components

DCC220-A01: Passive DAS Tray
Dual Frequency Duplex BTS to Simplex DAS Output

746 - 757/776 - 787 & 1710 - 1755/2110 - 2155 MHz
The DCC220-A01 is designed to interface two separate frequency bands with a corresponding simplex DAS system within the same tray. Supports 4 Tx/Rx channels total, 2 for each fully isolated band: 700 MHz LTE and 2100 MHz AWS (other custom combinations available). This assembly allows 0-30 dB independent level adjustment of the Tx and Rx paths. The Tx and Rx are separately monitored through a 20 dB coupled port.

Small Cell Components

DCC500-A01: Active DAS Tray
Broadband DAS RF Control and Diagnostic Unit

698 - 2700 MHz
The DCC500-A01 Active DAS tray provides local and remote power control and monitoring functions to optimize DAS system performance. Each Active DAS tray is capable of monitoring up to 4 uplink signals and 4 downlink signals. The DAS Control Rack (DCR) front panel display provides complete DAS system performance at a glance. This unit can be used with existing DAS trays or combined with Microlab’s high power DAS tray line to provide a complete local/remote signal conditioning and monitoring solution.

Multi-Band Combiners       

Small Cell Components BK-20 & BK-24: Wideband Diplexers
698 - 960/1710 - 2170 MHz & 80 - 520/698 - 2700 MHz
Low Loss, High Performance and Low PIM Diplexer in a low cost, weatherproof enclosure. For Cellular, Tetra and LTE. N or 7/16 DIN connectors.
Low PIM <-150 dBc. *All PIM measurements performed using 2 test tones at +43dBm unless otherwise stated. 

 
Small Cell Components
BK-21N & BK-62N: Cellular/WiFi Injectors
80 - 2170/2400 - 2500 MHz & 80 - 2170/2400 - 2500 & 4900 - 5850 MHz
Inject WLAN 802.11(b/g) into a broadband cellular signal path with minimal loss to either path. Model BK-62N also includes 5.8 WLAN 802.11 (a/n) and 4.9 WiMAX. BK-21 series also available with 7/16 DIN connectors. BK-21N, Low PIM <-140 dBc. BK-62N, Low PIM <-150 dBc.
   
Small Cell Components BK-26N: 3 GHz Diplexer
80 - 2690/3300 - 5850 MHz
Designed to separate and combine wireless cellular with those expanding applications in the 3.3 - 6 GHz band. Available for outdoor environments. Low PIM <-150 dBc.
   
Small Cell Components BK-27N: Cellular/WiFi-WiMax Injector
80 - 1990/2400 - 2700 & 4900 - 5850 MHz
Inject WLAN 802.11(a/b/g/n) into a broadband cellular signal path with >50 dB of isolation and minimal loss. Available for outdoor environments. Low PIM <-145 dBc.
   
Small Cell Components BK-36N: North America Band Triplexer
698 - 806/824 - 896 & 1850 - 2000/1710 - 1755 & 2110 - 2155 MHz
Low Loss, High Reliability Triplexer Integrates 700/850+PCS/AWS Bands with >50 dB of input isolation. For indoor applications. Low PIM <-153 dBc.
   
Small Cell Components BK-37 series: 700/850/PCS-AWS Triplexer
698 - 793/824 - 894/1710 - 2170 MHz
Low Loss, Low PIM Triplexer combines LTE band 698-793 MHz, the 824-894 MHz cellular band and the PCS/AWS band, 1710-2170 MHz with either N or 7/16 DIN connectors. Low PIM <-153 dBc.
   
Small Cell Components BK-38N: Broadband Triplexer Filter
380 - 2170/2400 - 2690/3300 - 5825 MHz
Low Loss, Low PIM Triplexer integrates Tetra-Cellular with WiFi and WiMAX. Through holes provided for simple mounting to a surface or cable tray
using N connectors. Available for outdoor environments. Low PIM <-150 dBc.
*PIM measurement performed using 2 test tones at +40 dBm

 
Small Cell Components
BK-41D/BK-41DW: Wireless Band Triplexer
698 - 960/1710 - 2170/2300 - 2690 MHz
Low Loss, Low PIM Triplexer integrates LTE upper and lower 700 MHz bands with cellular, PCS with AWS bands, and WCS with bands up to 2600 MHz. For Outdoor Applications. Low PIM <-153 dBc.
   
Small Cell Components
BK-72: AWS/PCS Diplexer
1850 - 2000/1710 - 1755 & 2110 - 2155 MHz
High Reliability, Low Cost Diplexers combines the signals in the AWS bands 1710-1755 MHz and 2110-2155 MHz with the PCS/GSM-1900 bands 1850-1990 MHz. N or 7/16 DIN connectors. For outdoor environments.
Low PIM <-150 dBc. 
   
Small Cell Components BK-96 Series: Wideband Quadraplexer
698 - 806/824 - 896/1850 - 2000/1710 - 1755 & 2110 - 2155 MHz
Low Loss, Low PIM Multi-band Combiner for LTE-700/GSM-850/PCS/AWS with 7/16 DIN standard connectors. For Outdoor Applications.
Low PIM <-153 dBc.
   
Directional Couplers       
   
Small Cell Components CK-10 series: Low PIM Directional Coupler
698 - 3600 MHz
Microlab’s Top Performing Directional Coupler with PIM Guaranteed less than -155 dBc
Very low loss tapered design for exceptional flatness. Available with N,
7/16 DIN, or 4.1-9.5 DIN (Mini-DIN) connectors. 
   
Small Cell Components CP-10 series: Ultra-wideband, Low Loss Stripline Coupler
698 - 2700 MHz
Directional Couplers designed to cover from 698 to 2700 MHz with minimal reflections or loss. N or 7/16 DIN connectors. Available in a wide variety of coupling values from 5 to 30 dB. Low PIM <-150 dBc.
   
Hybrid Couplers 2x2, 3x3, and 4x4      
   
Small Cell Components CA-84: Low PIM 2x2 Hybrid Couplers
698 - 2700 MHz
Narrow and wideband, with low loss, high isolation and very low PIM, for all wireless signal combining needs. N, 7/16 DIN or 4.1-9.5 DIN (Mini-DIN) connectors. Available for outdoor environments. Low PIM <-155 dBc.
   
Small Cell Components CA-88: Low PIM 2x2 Hybrid Combiner
698 - 2700 MHz
This smaller sized Hybrid Combines 2 broadband signals to 2 common outputs with low loss. Multi-Band Range for Cellular, PCS, UMTS and LTE. With either N or 7/16 DIN connectors. Available for outdoor environments.
Low PIM <-150 dBc.
   
Small Cell Components CM-20: Low PIM, Low Loss 4 x 2 Hybrid Matrix
698 - 960/1710 - 2170 MHz
Combines 2 low band signals with 2 high band signals to 2 common outputs with a coupling loss of 3.2 dB. Ideal for combining 700 MHz, 850 MHz, 1900 MHz and 2100 MHz bands to a common DAS. N or 7/16 DIN connectors.
Available for outdoor environments. Low PIM <-153 dBc. 
   
Small Cell Components CM-80 series: Low PIM 3 x 3 Hybrid Matrix
698 - 2700 MHz
Combine 3 broadband signals to 3 identical outputs with minimal interaction, low PIM and just 4.8 dB loss. Available for indoor and outdoor environments. N, 7/16 DIN or 4.1-9.5 DIN (Mini-DIN) connectors. Low PIM <-155 dBc.
   
Small Cell Components CM-58/68/78/88 series: Low PIM 4 x 4 Hybrid Matrices
698 - 2700 MHz
New in-line design concept! 4 x 4 Hybrid Matrices with 30 dB isolation, low -155 dBc PIM, and available IP67 housings. Narrow and broadband models. N or 7/16 DIN connectors. CM-88 also available with 4.1-9.5 DIN (Mini-DIN) connectors.
   
Splitters, Dividers and Tappers      
   
Small Cell Components DN-x0F series: Multi-Band Signal Samplers
698 - 5500 MHz
Low Loss, miniature samplers, 10, 20 and 30 dB ranges with minimal reflections or loss over the wireless bands in the range 698 - 5,500 MHz. SMA standard connectors. For outdoor environments.
   
Small Cell Components DN-x4 series: Multi-Band Unequal Splitters
350 - 5850 MHz
Low PIM, Tappers unevenly split signals in fixed ratios from 1000:1 to 2:1 with minimal reflections or loss over the wireless bands in the range 350 - 5,850 MHz. Available with N, 7/16 DIN or 4.1-9.5 DIN (Mini-DIN) connectors. For Outdoor environments. Low PIM <-153 dBc.
   
Small Cell Components DN-99 series: 40 dB QMA Tapper
698 - 2700 MHz
Low PIM Tapper allows monitoring of Tx signals with minimal reflections or loss over the range 698 - 2,700 MHz with -40 dB QMA monitor tap. Available with 7/16 DIN or N (m-f) through ports. Low PIM <-160 dBc.
   
Small Cell Components Dx-08/16: Reactive Splitters
380 - 2700 & 698 - 3800 MHz
Low cost, Low PIM Splitters to cover all wireless bands with specified low PIM. In 2, 3 and 4 way models. N or 7/16 DIN connectors. Dx-08, Low PIM <-150 dBc. Dx-16, Low PIM <-153 dBc.
   
Small Cell Components Dx-69FN/FF: Low Cost Power Dividers, In Line Outputs
698 - 2700 MHz
Low cost, general purpose Power Dividers in 2 to 8 ways covering the full 698 - 2700 MHz with either N or SMA connectors.
   
Small Cell Components Dx-72FN series: Low PIM Wilkinson Dividers
698 - 2700 MHz
Wilkinson style Power Dividers for low PIM applications where output isolation is preferable over lowest possible loss. N standard connectors. In either 2, 3, or 4 way configuration. Low PIM <-150 dBc.
   
Small Cell Components Dx-85: Low PIM Reactive Splitters
698 - 2700 GHz
Low cost, Low PIM, high power, high performance splitters to satisfy the growing interest in all wireless bands, with low PIM and IP67. Available in 2, 3, 4, 5 and 6 way configurations, N, 7/16 DIN or 4.1-9.5 DIN (Mini-DIN). Low PIM <-153 dBc.
   
Attenuators and Terminations      
   
Small Cell Components FY series: Low PIM 10W Attenuators
698 - 2700 MHz
Low Power (10 W), Low PIM, broadband unidirectional Attenuators covering all wireless bands from LTE-700 to WiMAX-2600 MHz with a flat attenuation response. Available with either N or 4.1-9.5 DIN (Mini-DIN) connectors.
Guaranteed PIM <-165 dBc. *PIM measurement performed using test tones at +37 dBm.
   
Small Cell Components TA/TB series: Low Cost Resistive Terminations
1 W to 250 W
Rugged, reliable terminations for most wireless applications where low PIM is not critical.
   
Small Cell Components TK-21: 10W Low PIM Cable Loads
698 - 2700 MHz
Low VSWR Cable Loads for extremely low PIM applications. Mounting clips included with load. N, 7/16 DIN, 4.1-9.5 DIN (Mini-DIN) or SMA connectors. For indoor applications. Low PIM <-160 dBc3.
Higher Power low PIM loads available ranging from 30 to 100 W in TK-20 series. *PIM measurement performed using test tones at +37 dBm.
   
Small Cell Components TK-25 series: Portable Low PIM Terminations
698 - 2700 MHz
50W Terminations for applications where portability is essential such as mast head antenna test requirements. Low PIM <-160 dBc.
   
Other       
   
Small Cell Components BL series: Duplexers
Splits or combines the Tx and Rx elements of a duplexed signal with high isolation and low loss.
   
Small Cell Components JA: Low PIM, High Performance Jumper Cables, Straight
DC - 6000 MHz
Low PIM jumper cables, using sheathed 0.141 coaxial cable series uses straight to straight N, 7-16 DIN or 4.1-9.5 DIN (Mini-DIN) connectors. Standard lengths from stock. Low PIM <-158 dBc.
   
Small Cell Components JB: Low PIM, High Performance Jumper Cables, Right-Angle
DC - 6000 MHz
Low PIM jumper cables, using sheathed 0.141 coaxial cable series uses straight to right angled N connectors. Low PIM <-153 dBc.
   
Small Cell Components JC series: Low PIM Jumper Cables Right Angle to Right Angle Connectors
DC - 6000 MHz
Coaxial Jumper Cables built for reliability and consistent low loss and guaranteed Low PIM <-145 dBc. N standard connector. Low PIM <-145 dBc.

Application: Small Cell Outdoor Installation      

Product: CM-80DP, 3x3 Hybrid Matrix,
698-2700 MHz, Low PIM, Outdoor Model

Application:
Small Cell Outdoor Installation
Location: KS/MO Market


Site Specs:
  • 700 MHz LTE MIMO (2x30W)
  • 2100 MHz LTE MIMO (2x60W)
  • 65°, 3 sector Quasi-Omni MIMO antenna, dual band
  • Light pole mounted antenna
  • Outdoor equipment cabinet
 
Small Cell Components
Photo of a Small cell site.
 
With the expanding use of multi-band macro base station and small-cell antennas, it has become increasingly challenging to feed the multiple MIMO signals from multiple base stations to a multi-sector antenna. The base stations or small cells in this case, be it of the same operator providing service in different bands and modes, or of different operators, sharing a multi-sector antenna have to deliver power to the multiple inputs of an antenna. In fact, increasing number of frequency bands thrown into the mix to meet the increasing capacity needs, has made antenna and infrastructure sharing inevitable. Such RF signal conditioning, dividing and combining requires careful selection of components and designs that will minimize the impact on electrical performance, as well as size and weight.

A tri-sector multi-band antenna in this example is being fed by two small cells with MIMO outputs at 700 and 2100 MHz bands (Fig.3). It is a three sector, high and low band antenna, with vertical polarization. This is a total of 12 inputs to the antenna that the dual outputs of two (in this case) small cells need to feed. Basically each one of the two 700 MHz MIMO outputs of the small cell need to be divided into three equal outputs and each resulting pair need to be fed to a polarized pair of inputs of the antenna. This needs to be repeated for the high band, 2100 MHz outputs.
Small Cell Components
Figure 1. CY-A01
 
Small Cell Components
Figure 2. CY-A01 Schematic

Application: Small Cell Outdoor Installation      

What is ideally needed is a broadband high power 3-way divider. Four of them would be required in this example to properly divide the small cell outputs into 6 pairs of cross polarized antenna inputs (Fig 1). Microlab 3x3 high power combiner/divider is ideally suited for this. With two inputs terminated by low-PIM broadband loads, it becomes a very compact broadband high power 3-way divider. Since this is a hybrid component, the power dividing is essentially lossless (Fig 2). Microlab has designed and constructed an assembly that integrates four of these combiners into an antenna feed network that is very compact, factory tested, outdoor rated, light and easy to install.
 
Another very powerful feature of such hybrid matrix is its ability to combine multiple inputs with good isolation and over-broad bandwidths. In the example shown (Fig 3), one can replace one of the input terminations on one of the high-band 3x3, and feed it with a legacy 1900 MHz source which would work with the new 2100 band without any disturbance. Key is high isolation, good port match and low-PIM. Or one can feed MIMO 1900 MHz LTE and re-farm the band by replacing an input termination of each one of the high-band 3x3 with a MIMIO 1900 small cell. In fact this same 4x(3x3) assembly can have up two additional low bands and two additional high-bands combined on the antenna independent of all other inputs.
Small Cell Components
Photo showing CY-A01 Installation.
 

The following two examples show the flexibility of multiple inputs to multiple outputs using Microlab’s Hybrid Matrix Combiners:
Small Cell Components Small Cell Components
Figure 3. Figure 4.