new generation - siemens · pdf filenew generation antenna business is based on the global ......

N e w G e n e r a t i o n A n t e n n a s

sGlobal network of innovation

Maqueta Antenas 5/7/04 14:24 Página 1

Introduction1.1 Fractal Technology:

The Technology of Nature®

1.2 Siemens Fractus Strategic

Alliance

1

C o n t e n t s

Products2.1 Launching Portfolio

2.1.1 Low Size Dualband Antenna

2.1.2 Siemens SlimSite®

2.2 Roadmap

2

Value Added Solutions3.1 Masts

3.1.1 Folding Mast

3.1.2 Fixed Mast

3.2 Camouflage Covers

3

Evolution4.1 StreetSite® Concept

4


1. Introduction

“Nature issource of

new horizons”


For millions of years nature has been refining the architectureof biological structures towards a more efficient distributionand use of energy. This evolution has derived into fractalforms in almost every critical structure, for example thehuman circulatory system, mountains, trees, vegetables orclouds. Fractals are the basis of The Technology of Nature®.

Fractal Theory describes how a geometrical form can bedivided into infinite parts, each one a reduced copy of theoriginal. The mathematical principles behind fractals havebeen used in the development of innovative solutions forimage processing, the chemical industry, biotechnology andnatural resource exploitation, among others.

The continuous increase in demand for cellular services ispushing operators to enhance the coverage and capacity oftheir existing 2G networks, and the ongoing introduction of3G Systems requires new base station installations. Thesefactors will give rise to a need to deploy higher densitynetworks to achieve the expected level of quality in newgeneration mobile services.

Nowadays, governments and operators alike are sensitive tothe Public’s desire for environmentally-friendly installations. To achieve this aim, site installations should present minimumvisual impact, with small antennas that support several mobilesystems simultaneously in the same structure.

Siemens proposes the Fractal Technology as the right choicefor the development of radiating systems where multiplebands and/or reduced size play a differentiating role.

The main benefits of the use of fractal technology in antennadesign can be seen in the following product characteristics:

Fractal Technology Antenna Design Customer Benefit

Spatial Stuff Low-Size Antenna Aesthetic solutionHighly Dissimilar forms Limited Visual Impact.

Reduction in weight and wind resistance.

Self-Similarity Multiple-Band Antenna Higher Integration Performance

Genetic Algorithms Radiating Pattern adjusted Reduced interference for base station applications (blind skyline zone).

Increased Coverage (Nulfilling)

Current Concentration Simple current distribution Low weight networks Improved MTB

These benefits mean that Siemens’ value proposition for basestation radiating systems is an optimized solution that givesmaximum product performance while ensuring harmony withthe installation environment.

This New Generation of Base Station Antennas based onfractal technology was awarded in 1998 with the highestpossible recognition in the Information Society TechnologyIndustry: the European IST Grand Prize. This is organized bythe European Council of Applied Sciences, Technologies andEngineering (Euro-CASE), with the sponsorship and support of the Information Society Technologies Programme ofthe European Commission.

1.1 Fractal Technology: The Technology of Nature®


Mar

ket

Manufacturing.Value AddedSolutions andSales.

Engineering

Marketing

Sales

s

ProductSpecification,Design, R&D

Technology

Know How

s

1.2 Siemens Fractus Strategic Alliance

New Generation Antenna Business is based on the global alliance between Siemens and Fractus for the development and commercialization of reduced-size, multiple-band andhigh-performance base station antennas for thetelecommunications infrastructure market.

Our objective is to become worldwide market leaders in the supply of integral radiating solutions for limitedenvironmental impact mobile radio infrastructures, with the implementation of the most advanced wirelesstechnologies.

Fractus’ role in this alliance is to design miniature andmultiple-band antennas for wireless applications that areeasy to integrate and, at the same time, provide highperformance. To achieve this, Fractus uses the uniquespace-filling and multi-level properties of fractals as thebackbone of its technology. Fractus has already proved thatits antennas comply with the most advanced standards formobile phones, BluetoothTM and WLAN devices, basestations and military applications.

Siemens has created an International Centre of Competence (CoC) based in Spain. This CoC, is responsible for the GlobalManagement of the New Generation Antenna Project. TheSiemens R&D team coordinates the whole developmentprocess, leads the design of value-added solutions andassures product quality and manufacturability. RadiatingSystems are produced at the Siemens Mobile factorypremises in Zaragoza. International business development is supported by the Siemens Mobile sales network.


2. Products

“Evolutionreflection”


Two product lines to satisfy mobile operator needs

Low Size Antennas

Low Size Dualband(UMTS - GSM 1800)

SlimSite® Dualband(UMTS - GSM 1800)

• Optimum for site reuse

• The best performance with the lowest size

• Low visual impact solution for new sites

• The highest integration for the minimum surface

SlimSite®

2.1 Launching Portfolio


2.1.1.1. Technical specifications

DCS//UMTS SF-DDU-18-65-V08-R SF-DDU-18-65-F

Frequency Range 1710-1880&1920-2170MHz 1710-1880&1920-2170MHz

Polarization Xpol, +/- 45º Xpol, +/- 45º

Gain 17,5dBi//17,5dBi 17,5dBi//17,5dBi

Electrical Down-tilt 0º-8º//0º-8º 0º,2º,4º,6º,8º//0º,2º,4º,6º,8º

(band independent) (band independent)

Vertical Beam Width 6,5º//6º 6,5º//6º

(-3dB)

Horizontal Beam Width68º//65º 68º//65º

(-3dB)

Cross Polar Discrimination 25dB//25dB 25dB//25dB

F/B Ratio >25dB//>25dB >25dB//>25dB

1st Upper Side >18 dB @ 0º tilt >18 dB @ 0º tilt

Secondary Lobe >16 dB @ 8º tilt >16 dB @ 8º tilt

Nulfill 16dB//16dB 16dB//16dB

Interport Isolation >30 dB >30 dB

Impedance 50 Ω 50 Ω

VSWR <1,4:1//<1,4:1 <1,4:1//<1,4:1

Intermodulation 150dBc//150dBc 150dBc//150dBc

Products (2*20W)

Max. Power per input 300W 300W

Connectors position Bottom (4*7/16) Bottom (4*7/16)

Weight 12Kg 12Kg

Prepared for RET OK N.A

Environmental tests Standard

Vibration IEC 68-2-6 68-2-64

Salt Mist IEC 68-2-52

Maximum temperature IEC-68-2-2

Minimum temperature IEC 68-2-1

Temperature Changes IEC 68-2-14

Rain IEC 529, IP 24

Humidity IEC 68-2-30

Shock test IEC 68-2-29

Type Approval Certifications Certified Laboratory

Radio electric Specifications Universidad Politécnica

de Madrid (UPM)

Environmental Specifications CETECOM

2.1.1 Low Size Dualband Antenna


Fractal technology allows independence between bandswithout any modification of array dimensions, thuspreserving minimum visual impact. In the market for Dual Band Antennas with 4 connectors (independence of bands for Planning flexibility), Siemens Dual BandAntennas have the smallest surface area.

These mechanical features are very important from theinstallation point of view. The low surface implies a lowwind load leading to a reduction in the mechanicaloverweight in the masts.

As antennas do not completely behave as linear transducerswith respect to the input power, the internal networks mayproduce some harmful distortion, interfering the other bandin the array. Siemens Dual Band Antennas incorporate anelectrical down-tilt which is independent in each band. Thisconfiguration achieves the maximum uniformity ofcoverage in both polarizations, thus reducing thepossibility of harmful distortions (intermodulationproducts).

Merit Factor FThe F factor takes into account the most relevantparameters that impact on BTS antenna design: verticalbeamwidth (footprint, coverage), secondary lobes in the“blind zone” (interference) and surface (visual impact and wind load).

The graph below shows the Siemens Dual Band AntennasMerit Factor results compared with the equivalent productsof the main competitors.

Notice that other manufacturers reach similar values, but two units below.

2.1.1.2. Unique selling proposition of Siemens Dual Band Antennas

F=SL[dB]

Length[m]•Width[m]•VB[º]

Siemens

10,0

8,0

6,0

4,0

2,0

0,0Product 1 Product 2 Product 3 Product 4

F (DCS) F (UMTS)


2.1.2. Siemens SlimSite®

2.1.2.1. Technical specifications

DCS//UMTS SF-Slim-DDU-V08-RFrequency Range 1710-1880&1920-2170MHz

Polarization Xpol, +/- 45º

Gain 16,5dBi//17dBi

Electrical Down-tilt 2º-10º//2º-10º

(band and sector independent)

Vertical Beam Width (-3dB) 7º//6º

Horizontal Beam Width (-3dB) 68º//65º

Cross Polar Discrimination 25dB//25dB

F/B Ratio >25dB//>25dB

1st Upper Side >18 dB @ 2º tilt

Secondary Lobe >16 dB @ 10º tilt

Nulfill 16dB//16dB

Interport Isolation >30 dB

Impedance 50 Ω

VSWR <1,4:1//<1,4:1

Intermodulation Products 150dBc//150dBc

(2*20W)

Max. Power per input 200W

Connectors position Bottom (12*7/16)

Weight 50 Kg

Prepared for RET OK

Azimuth +/- 10º per sector

Antenna heights Modular from 2,2 to 8m

Cover to bottom Yes

Environmental tests Standard Vibration IEC 68-2-6 68-2-64

Salt Mist IEC 68-2-52

Maximum temperature IEC-68-2-2

Minimum temperature IEC 68-2-1

Temperature Changes IEC 68-2-14

Rain IEC 529, IP 24

Humidity IEC 68-2-30

Shock test IEC 68-2-29

Structure Certifications Finite element analysis

Concentrated load - deflection test

Destructive loading test

Experimental determination of the vibration modes of the structure

Type Approval Certifications Certified Laboratory Radio electric Specifications Universidad Politécnica

de Madrid (UPM)

Environmental Specifications CETECOM

Mast Structure Instituto Tecnológico

de Aragón (ITA)

Universidad de

Zaragoza (Unizar)


2.1.2.2. Unique Selling Proposition of Siemens SlimSite®

With its additional advantages to stand-alone antenna products,Siemens SlimSite® is the right solution for new site acquisitionor existing site revamp, providing radiating system, mast andaesthetic solutions in just one standard product.

It is a best-in-class product in terms of both performance andreduced visual impact. The integration capabilities of fractaltechnology offer three dual band cross polar sectors withvariable tilt in a cylinder of just 25 cm in diameter.

The radiating system is provided integrated within a modularmast, offering different antenna heights (2.2 m to 8 m) tocover a wide range of network planning requirements inurban environments. The whole structure is designed to beinstalled without guide wires to ensure minimum visual impact.

The Monoradome System provides better aesthetics whileensuring maximum flexibility for network optimization with the mechanical azimuth adjustment feature.

The great technological challenge of Siemens SlimSite® situates our offer way ahead of the current state of the art ofour competitors. Check bellow for the diameter reduction ofSiemens SlimSite® in comparison to the reference competitor(both products include mast with variable height, azimuthadjustments +/- 10º, VET prepared for RET and covers to hidefeeders and tower amplifiers).

25 cm 60 cm

Siemens Reference Market Product


First Release 2004

• Low Size Dual band UMTS/DCS 1800 with VET prepared for RET

• SlimSite® Dual band UMTS/DCS1800 with VET prepared for RET

• Aesthetic & Camouflage Solutions• Fractal Technology• Genetic Algorithms

2.2 Roadmap

• Option: fixed tilt 0, 2, 4, 6, 8• Specific Antenna Developments

(Customer request)

• Low Size Triple band Antennas GSM900-DCS1800-UMTS

• Low Size Triple band SlimSite® GSM900-DCS1800-UMTS

• Node B and antenna Integration(StreetSite® Concept)

• Further Aesthetic & Camouflage Solutions

• Service Integration

• RET Option for already developed antennas

• Addressing Additional Markets:- GSM R/GSM900- Specific Antenna Developments

(Customer request)

• UMTS/WIFI Network Integration(4G Antenna)

• Capacity solutions• Integrated solutions

• Specific Antenna Developments(Customer request)

Second Release* 2005

Basic Line

VET: Variable Electrical Tilt RET: Remote Electrical Tilt *Feature Candidates

Technology & Solutions Opportunities & Options

Third Release* 2006

I n n o v a t i o n P a t h


3. Value Added Solutions

“Integrationinto environment”


Siemens offers two innovative mast solutions for SlimSite®installation, designed with the following commoncharacteristics.

Reduced Visual impact in line with Radiating Systems:

Diameter 25 cm.Covers for feeders, tower amplifiers, RET motors and common tower elements.Installation without guide wires.Prepared for optional camouflage covers.

Maximum flexibility:

Modular Height Options available.Optional accessibility modules according to site installation needs.

CAPEX and OPEX savings:Innovative solutions for installation and maintenance.Accessibility to the whole set of site elements.

Our masts are designed according to the highest qualitystandards. The wind loading and structural behaviourhave been modelled utilizing finite element analysissystems to assure compliance to DIN4131 and Eurocode3. The type approval of the masts against thesestandards is certified by the Instituto Tecnológico deAragón (ITA).

3.1. Masts


General Description:Folding solution for optimum installation and maintenance.Reduced Visual Impact:

Strong weight-bearing inner structure: D = 15 cm.Feeder installation fixed to the weight-bearing structure.External covers: D = 25 cm.

Modularity:Rising modules (L=2m) for different mast heights (optional).Base Module.TMA Module (optional).Module for Radiating System accessibility.

Azimuth adjustments from the base of the structure.Security System: Not necessary.

Siemens Folding SlimSite® Unique Selling Proposition:Installation invisible from street level:

The SlimSite® installation is carried out at the roof level and it is hoisted after the camouflage cover installation.

Security:Folding SlimSite® avoids dangerous and costly aerial work.

OPEX Savings:No aerial work means reduced maintenance costs.

CAPEX savings:Folding SlimSite® avoids security steps, security systems and antenna support.

Optimum Maintenance Processes:Carried out with the mast folded down.

3.1.1. Folding Mast


General Description:

Fixed solution for small terrace roofs.Reduced Visual Impact:

External weight-bearing structure: D = 25 cm.Feeder installation inside the structure.

Modularity:Different height modules (2, 3 and 5 m) (optional).Base Module.TMA Module (optional).Module for Radiating System accessibility.

Azimuth adjustments from the base of Radiating System.Security System: Life Cable and detachable steps.

Siemens Fixed SlimSite® Unique Selling Proposition:

Optimum designs for Reduced Visual Impact RadiatingSystems on small terrace roofs.

Security:Safety protections for installation and maintenance designed into the product from the start.

Detachable Security system:Access to the mast only possible for authorized staff.Minimum visual impact.

CAPEX and OPEX savings:Reduced number of modules.

3.1.2. Fixed Mast


Siemens SlimSite® offers an innovative approach incamouflage solutions: Optional mimetic covers can be used tosimulate ventilation tubes or chimneys. These covers are partof the standard product options.

The camouflage covers are integrated into the mast surface totake advantage of the minimum Radiating System diameter.This avoids additional wind load area and hence maintainsthe deflection limit without extra costs in the structure. TheSlimSite® camouflage covers are easy to install following thestandard SlimSite® installation procedures, avoiding the extracost and installation time for special camouflage supports.

Siemens SlimSite® camouflage covers are designed foroptimum integration in the urban landscape. They can bepainted so that their colour blends in with its surroundings.

3.2. Camouflage Covers


4. Evolution

“The wayto efficiency”


Top concerns of mobile operator.• How to acquire new sites?• How to reduce OPEX?• How to reduce CAPEX?

These problems can be solved by deploying SiemensStreetSite®. Siemens StreetSite® is an innovative integrationconcept of Node B radiating modules and low-size fractalantennas into the urban landscape for Radio Cell deployments.

It is the best solution for flexible and cost-efficient sitedeployment and provides the following advantages tooperators:

- It brings the Radio Power to where it is used.Reduces power consumption up to 20%, thanks to reducedfeeder losses.Reduces acoustic noise due to convectional cooling of RadioModules (easier acquisition of sites).

- Remote Radio Modules can be very flexibly grouped together.No rack limitations (for 1-6 sector configuration).Several radio sites can be formed and served by one Node B Server.Portable System to reduce installation costs.Flexible combinations of Macro, Micro an Pico Cells.

- Future proof technology with standard CPRI interface.- Fully compatible with the classic architecture(mix with classical One-rack solution possible).

- Integrated camouflage solution with low-size fractal antennas.

Radio Access Network Architecture:

4.1. StreetSite ConceptR


Issued by:Siemens S.A. Ronda de Europa, 5 E-28760 Tres Cantos (Madrid)

Printed in Spain

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