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Antenna Manufacturing
• Common Product – regardless of manufacturing location.
• Common processes at all Andrew global manufacturing locations.
• Globally defined skill requirements for critical operations.
• Quality Standards/Certifications.
• North America; South America; Europe.
Why use Microwave?
• Speed of Deployment
• Cost – no cables to lay
• Access – Remote locations or rugged terrain
• Minimal risk of damage in service
Where are TMW antennas used?
• Main Backbone and Spur Networks (High Capacity – Low to Medium Capacity)
• High capacity links possible using co-polar, co-frequency transmission
• As Backup for Optical Fibre
Where are TMW antennas used?
The Products In A Microwave System Depend On Each Other
• A microwave system includes antennas, waveguide, accessories, and pressurization
• If any of these pieces is of poor quality, the entire system suffers
• Andrew designs and manufactures all of these products; we deliver quality and value to the customer
Microwave Systems Primary Facilities
Reynosa, Mexico Manufacturing Plant
(only plant for 4.5m and ExtremeLine antennas)
Brno, Czech Republic Manufacturing Plant
Goa, India Manufacturing Plant
Microwave System Products
Microwave System
Radome
Antenna
Elliptical
Waveguide
Connector
Elliptical
Waveguide
Grounding
Kit
Hanger
Waveguide
Bridge
Grounding
Kit
Support
Angle
Grounding Kit
DryLine® Dehydrator
Flex Section
Pressure
Window
Elliptical
Waveguide
Connector
Wall/Roof
Feed Thru
A combination of passive components allowing radio transmission
Antenna Types
Standard
(P/PL)
Shielded
(HP/HSX/UHX)
ValuLine®
(VHLP)
ValuLine® Antennas
• Designated
– VHLP Single Polarized
– VHLPX Dual Polarized
• Excellent Pattern Performance
• Radome supplied as standard
• Diameters 0,3; 0,6; 1,0; 1,2 and 1.8m (1’ – 6’)
• Frequencies 6 GHz – 80GHz
• Design to allow direct mount of radio
Radio Integrations - The Solution
Microwave System Products TMW Antennas
Unshielded Antennas
• Designated
– P Single polarized
– PL Single polarized, low VSWR
– PXL Dual polarized, low VSWR
• Reasonable Pattern Performance
• Molded Radome is an optional extra
• Diameters 1.2 – 4.5m (4’ – 15’)
• Frequencies 900 MHz – 13 GHz
• Survival Wind speed 200 km/h (125 mph)
Shielded Antennas
• Designated
– HP Single polarized
– HPX Dual polarized
• Improved Pattern Performance
• Standard fabric radome supplied (except 1.2m)
• Diameters 1.2 – 4.5m (4’ – 15’)
• Frequencies 2 GHz – 15 GHz
• Survival Wind speed 200 km/h (125 mph)
High Cross-Pol Antennas
• Designated
– HSX Dual polarized, High XPD
• Excellent Pattern Performance
• Enhanced fabric radome supplied as standard
• Diameters 1.2 – 4.5m (4’ – 15’)
• Frequencies 4 GHz – 18 GHz
• High cross- polar discrimination in the azimuth and elevation planes
• Suitable for co-channel transmission in both polarizations
• Survival Wind speed 200 km/h (125 mph)
Radomes
• Reduce wind loading on Tower
• Protection Against Ice, Snow and Dirt
• Standard on Shielded Antennas
• Molded Radome Optional on Standard Antennas
• Teglar - Hypalon
Antenna Wind Load Information
Andrew publish data for each diameter and type of antenna giving:
1. Maximum axial force (FA) 2. Maximum side force (FS) 3. Maximum moment (M) For example, page 111 of Catalogue 38 or in AntWind.
θ
FA
FS
MT
SA
SS
ExtremeLine™ Antennas Designed to deliver quality performance in
extreme environments
ExtremeLine™ Antennas
Antennas designed for quality performance in extreme environments
• High-wind areas • Hurricanes • Typhoons • Extreme Wind Gusts • Areas Prone to Corrosion
- Marine - Volcano - Chemical Process Plants - Fossil Fuel Power Stations
• Mountainous/Extreme Heights
ExtremeLine™ Antennas— W-Series, WE-Series, SE-Series & NEW T-Series VL Antennas
W-Series Antennas:
Carry wind speed ratings of 250 km/h (155 mph)
WE-Series Antennas:
Feature a wind speed rating of 250 km/h (155 mph) and also feature a corrosion-protection package
Both the W-Series and WE-Series antennas attach to a standard 115 mm (4.5 in) O.D. diameter pipe
SE-Series Antennas:
Feature a wind speed rating of 320 km/h (200 mph) in addition to the corrosion-resistance package
SE-Series antennas attach to the tower interface via four stainless steel studs instead of the standard 115 mm (4.5 in) O.D. diameter pipe
T-Series ValuLine Antennas:
Feature a wind speed rating of 320 km/h (200 mph) for 0.3m & 0.6m ValuLine antennas
Attach to a 115 mm (4.5 in) O.D. diameter pipe
To order the
ExtremeLine antenna,
add a W, WE, SE or T as
the prefix of the existing
part number
Example: WEHP8-65-P3A
Microwave System Products Transmission Line Products
Types of Transmission Line
Coaxial Cable 500 MHz - 20 GHz
Rectangular Waveguide 3.6 - 40 GHz
Elliptical Waveguide 1.7- 26.5 GHz
Fixed-Tuned Connectors
• Equal performance to tunable connectors
• Full range of flange types
• Less expensive than previous tunable connectors
• Easier to install
• Cuts installation time – no tuning required
• Reduces overall installation expense
Rigid and Flex-Twist Waveguide
• Flex-Twist Waveguide – Used for short waveguide runs where access is
difficult
– Shape can be manipulated with minimal RF impact
• Waveguide to Coax Transition – Used to connect a coaxial cable to a flange of a
microwave antenna
• 90° Twist – Used to change the polarisation of two
waveguide components
• 90° E-Bend – Used to turn waveguide 90° along the E-plane
(wide side) of the waveguide
Rigid and Flex-Twist Waveguide
• 90° H-Bend
– Used to turn waveguide 90° along the H-plane
(narrow side) of the waveguide
• Straight Section/Flange Adaptor
– Used to provide a straight rigid length of a particular
waveguide size or to provide a conversion between 2
flange types of the same waveguide size
• Taper Transition
– Used to convert one waveguide size to one of the
adjacent larger or smaller waveguide sizes
• Pressure Window
– Used to “block” a component to prevent it being
pressurised
– Used regularly to protect radio equipment
Microwave System Products Pressurization Products
What is Pressurization
Pressurization
• Maintaining the inside of a closed volume at a positive pressure.
• Generally used for large systems with runs of elliptical waveguide
Dehydration
• Closed volume is at same pressure as external.
• Controlled by air flow through a desiccant
• Generally used for small volumes (for example flex-twists or short runs
Pressurization Products
• Dehydrators
• Static Dessicator
• Disposable Dehydrators
• Low Pressure Membrane Dryers
1940 1960 1990
1949 Model 1900 Automatic Heat- Regenerative Dehydrator
1958 Model 1910 Automatic Heat- Regenerative Dehydrator
1968 Model 1930 Automatic Pressure-Swing Adsorption Dehydrator
1991 DryLine® Automatic Membrane Dehydrators
1943 Hand Pump 860G
1937 Victor J. Andrew Company founded
1964 Model 1920 Automatic Pressure-Swing Adsorption Dehydrator
Prehistory Recent Past Era Modern Era
Age of
Silica Gel
Age of
Zeolite
Membrane
Separation
Ancient Era
More than 60 Yrs of Andrew Dry Air Technology
Membrane Air Drying
Moist Air at Pressure Dry Air
Out
Water Vapor Vents to Outside
Permeable Membrane
Membrane Air Drying
Process: Water molecules in a pressurized air stream pass through a
permeable membrane, leaving dry product air behind.
Material: Polymer extruded into thin, hollow fibers to maximize
surface area. Fibers treated to control permeability and gathered into
bundles. Fibers bundles mounted in drying cartridge with pressurized
gas inlet/outlet and moisture vent ports.
Membrane Dryer Advantages
Exceptional dew point performance -45°C and better
Pre-filtering of air stream removes soluble and particulate contaminants
using a dual filtering system
Cartridge requires no regeneration
Oil-less compressor eliminates source of contamination and simplifies
maintenance
Membrane technology proven by 19+ years of actual use
PMT200B Membrane Dehydrator
• Low pressure 3 psi regulated output
• Expanded system volume range
• Integrated 4-Port Manifold
• Wall-mount design
• Universal voltage selection
• Self-contained, complete system
Microwave System Products Class 4 Antennas
NEW
Microwave Backhaul Solutions
The biggest innovation in backhaul technology in years. We are rewriting the rules of cost and benefits.
Sentinel
C3
Coverage
Capacity Cost
Cheaper and more effective ways to meet the Coverage & Capacity growth at a lower CAPEX and OPEX
Why Sentinel™?
It’s the first solution to put next-generation performance within reach:
• Superior ETSI Class 4 radiation pattern delivers better interference suppression in a smaller antenna
• Allows network density to be increased by typically 40%
• Reduces spectrum costs through better reuse
• Allows higher modulation schemes to be used, increasing backhaul capacity
A bit of background…
• What is interference? – A “clash” of signals from
two microwave systems on the same frequency
• What are the results? – Reduced data rates
– Dropped packets
– …Lost customers
– …Lost revenue
Los Angeles – 6, 11, 18 & 23GHz
Lost energy…lost revenue… • Microwave Links - Sidelobes
Antenas??
Software HTCOM_ND
Introdução
Dando prosseguimento à Análise de Eficiência das Antenas Sentinel a HTCOM através de seu software HTCOM_ND, realizou análises de interferência para todos enlaces da Operadora X existentes no estado do RJ alocados nas faixas de frequências de 15, 18 e 23GHz, Com o intuito de comprovar a melhora dos níveis de interfência encontrados nesta região dentre as faixas estudadas.
HTCOM_ND - Modules / Process
• Realizamos o resgate de todos enlaces de Microondas da Operadora X – RJ situados nas faixas de frequências e 15, 18 e 23GHz (1.103 enlaces pelo SITAR): • Elencamos principais BW’s de mercado, dentre as frequências estudadas, onde tomamos como foco do estudo como podemos ver abaixo:
15GHz/14MHz ; 18GHz/14MHz; 18GHz/28MHz; 18MHz/56MHz; 23GHz/28MHz; 23GHz/56MHz;
• Calibração dos Equipamentos baseado nas informações da ANATEL;
Frequencia Operadora X Outras Operadoras
15GHz 253 933
18GHz 307 1852
23GHz 543 2815
Total 1103 5600
HTCOM_ND - Modules / Process • Definição de Parâmetros para realização dos Cálculos de
Interferência:
HTCOM_ND - Modules / Process
• Realização do cálculo de interferência para os enlaces subdividindo em 2 cenários:
Cenário 1: Utilizando antenas de Classe 2/Classe 3 levantadas a partir de dados do SITAR;
Cenário 2: Utilizando antenas Sentinel;
* 0.3m 0.3m; 0.6m0.6m e 1.2m1,0m.
HTCOM_ND - Modules / Process • Comparativo dos níveis de interferência nos 2 cenários;
Antenas Classe 2 e Classe 3:
Ex: enlace 689755600- 689755619_23GHz – 28MHz
Antenas Classe 4:
HTCOM_ND - Modules / Process
• Comparativo do número total de casos interferentes acima do limiar**; Em um outro caso analisado, notamos também uma redução acentuada no número de casos de interferentes identificados acima do limiar de 0.5 dB, pois houve queda de 281 para 107 casos, ou seja, tivemos uma redução de 61.92% de interferentes no enlace 689753691 - 696257742_23GHz_56MHz trocando as antenas VHP1-220 por SHP1-23. **Limiar mínimo utilizado=0.5dB.
Antenas disponiveis hoje
Sentinel™ Part Numbering Guide
Sentinel – A Summary
C3
Coverage
Capacity Cost
Cheaper and more effective ways to meet the Coverage & Capacity growth at a lower CAPEX and OPEX
