RFS Grid Antennas Contents
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Frequency and size•
Mini Grid Antennas•
Grid Kit AntennasRFS Grid Antennas
Grid antennas below 4 GHz
RFS Grid Antennas Features
RFS Grid Antennas
MGA, MGAR MINIGRID antennas
• Small light-weight welded grid reflector
• Fast site assembly
• Extra high survival wind speed of 350 km/h (0.6-1.2m)
• Sizes: 2 ft 0.6m, 3 ft 0.9m, 4 ft1.2m and 6 ft 1.8m
• Suits all broadband and
narrowband feeds from 820 MHz to 3.7 GHz
• R-types for low capacity rural application
RFS Grid Antennas GKL, Gridkit antennas
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Suits all broadband and narrowband feeds from 820 MHz to 3.7 GHz•
Knockdown reflector for economy of transport•
Survival wind speed of 200 km/h•
Low tower wind load•
Sizes: 8 ft 2.4m and 10 ft 3.0mRFS Grid Antennas
GKA, Gridkit antennas for heavy duty, extra high wind rating
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Suits all broadband andnarrowband feeds from 335 MHz to 3.7 GHz
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Knock-down reflector for lower shipping costs•
Extra high survival wind speed of 300 / 350 km/h•
Low tower wind load•
Sizes: 6 ft 1.8m, 8 ft 2.4m, 10 ft 3.0m, 12 ft 3.8mRFS Grid Antennas
GPW 46, High Gain Grid Series
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Fully welded reflector supplied in two halves•
Simple on-site assembly•
Complete with mount and azimuth•
armsUltra high survival wind speed of 300 km/h•
Suits all broadband and narrowband feeds from 335 MHz to 2.7 GHz•
Diameter: 15 ft 4.6 mAntennas for Point to Multipoint Systems Contents
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Fundamental principles•
3.5 GHz-Antennas•
25/28 GHz-Antennas•
SummaryAntennas for Point to Multipoint Systems Sector characteristic, fundamentals /1
Optimizing the network by sectorization
Antennas for Point to Multipoint Systems Sector characteristic, fundamentals /2
f1
f1 f2
Increase of capacity by the use of smaller sector sizes
f2
f1
f2
Advantage: - Present antennas can be used - Change of frequency by software
Antennas for Point to Multipoint Systems 25 GHz, azimuthdiagram with EN 301 215-2
-45 45
-3.0 dB
Azimuth [deg]
Antennas for Point to Multipoint Systems 3.5 GHz, omnidirectional characteristic
VOA35-360ANVH
• Omnidirectional antennas (VOA-Series) - polarisation vertical
- Connector N-female
- two different gain values (3 dB difference)
Antennas for Point to Multipoint Systems 3.5 GHz, sectorcharacteristic
• Sector antennas (SEC-Series)
- designed for point-to-multipoint application - polarisation vertical and horizontal
- available in azimuth sectors of 60, 90, 120 and 180 deg - two different gain values (3 dB difference)
SEC35-90ANVH (SEC 35-90-16 V) - Gain: >16 dBi - 3 dBelev: 6.5 deg
- Length: 815 mm ; 32 inches SEC35-90ANVL
(SEC 35-90-13 V) - Gain: >13 dBi - 3 dBelev: 11.5 deg - Length: 495 mm ; 19.5
inches
Antennas for Point to Multipoint Systems Mount with tilt option
The optional tilt mount enables the network planer to optimise the coverage within a cell by adjusting the down tilt from 0 up to -20 deg in elevation.
It can be applied to all sector antennas in different array
configurations. An example is shown with 4x90 deg sector antennas.
Antennas for Point to Multipoint Systems 3.5 GHz, Subscriber-antennas
SA-Series
- Cost effective design
- Available in two gain versions - With integrated coaxial cable
- The antenna is protected by a solid radome
- The antenna mount provides a quick and easy installation on standard pipes from Ø 30 up to 60 mm as well as wall installation
- Survival Windspeed 200 km/h - Operational Windspeed 120 km/h
Antennas for Point to Multipoint Systems 3.5 GHz, Subcriber Antennas
PAN/SA-Series (Panel-Ant.)
Height x width
125 x 220 mm Height x width
310 x 210 mm SA35-15ASH: 14.5 dBi, 0.2m cable
SA35-15ASM: 12.7 dBi, 2.0m cable SA35-15ASL: 11.9 dBi, 3.0m cable
SA35-17ASH: 17.0 dBi, 0.2m cable SA35-17ASM: 15.1 dBi, 2.0m cable SA35-17ASL: 14.0 dBi, 3.0m cable
Antennas for Point to Multipoint Systems 25 GHz, 90 deg sector characteristic
SEC260-90ABH SEC260-90BBV
Frequency range: 24.25 - 26.75 GHz Polarisation: vertical or horizontal Gain: > 15 dBi
Diameter x length 170 x 210 mm
Antennas for Point to Multipoint Systems 28 GHz, 90 deg sector characteristic (LMDS)
SEC280-90-21-H SEC280-90-21-V
Frequency range: 27.35 - 29.5 GHz Polarisation: vertical or horizontal Gain: > 21 dBi
Height x Width x Depth 450 x 90 x 230 mm
SEC280-90ABH SEC280-90BBV
Frequency range: 27.35 – 29.5 GHz Polarisation: vertical or horizontal Gain: > 15 dBi
Diameter x length 170 x 210 mm
Antennas for Point to Multipoint Systems Summary
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3.4 - 3.6 GHz Available:Omnidirectional characteristic, vertical
Sectorcharacteristic, vertical and horizontal Pencil beam characteristic
- Flat panel
- Grid antennas
- Parabolic antennas
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24.5 – 26.5 GHz and 27.35 – 29.5 GHz Available:90°-sectorcharacteristic
- Medium gain, (25 and 28 GHz) - High gain, (28 GHz)
Pencil beam characteristic - Parabolic antennas
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Standard waveguides•
Overmoded waveguides•
Connectors for waveguides•
Dehydration of waveguidesRFS FLEXWELL Elliptical Waveguides
RFS FLEXWELL Elliptical Waveguides Product Portfolio
Three versions of FLEXWELL® elliptical waveguide are offered:
• FLEXWELL® “Standard” waveguide, 1.7 – 39.5 GHz
• Low VSWR “Premium” waveguide, 3.0 – 19.7 GHz
• “Overmoded” waveguide”, 10.7 – 39.5 GHz
Standard and premium waveguide differ only in testing and
guaranteed attainable VSWR. FLEXWELL® “standard” waveguide is recommended for low and medium capacity radio relay systems,
while FLEXWELL® “premium” elliptical waveguide assemblies are recommended for high capacity radio systems.
Overmoded waveguides offer exceptionally low attenuation characteristics compared with conventional waveguides. The waveguide operates above the cut-off frequency of higher order modes utilizing the lowest attenuation characteristics of the
waveguide.
RFS FLEXWELL Elliptical Waveguides Different models
E70 48x28mm
E105
33x20mm E130
29x18mm E380 12x9mm
RFS FLEXWELL Elliptical Waveguides Frequency ranges below 10 GHz
Model Number Operating Frequency Band Performance Dimension over Jacket Max. VSWR / Max. VSWR / [GHz] [mm, (in)] R.L. Standard [dB] R.L. Premium [dB]
E20 1.70 - 2.30 Standard 145 x 81 (5.7 x 3.2) 1.128 / 24.4
Option: Fire retardant jacket (JFN-type)
RFS FLEXWELL Elliptical Waveguides Frequency ranges above 10 GHz
Model Number Operating Frequency Band Performance Dimension over Jacket Max. VSWR / Max. VSWR /
[GHz] [mm, (in)] R.L. Standard [dB] R.L. Premium [dB]
E105 8.1 - 11.70 Standard 33 x 20 (1.3 x 0.8) 1.15 / 23.1
E300 27.5 - 33.4 Standard under development
E380 29.0 - 39.5 Standard 12 x 9 (0.5 x 0.3) 1.151 / 23.1
Option: Fire retardant jacket (JFN-type)
RFS FLEXWELL Elliptical Waveguides
EO38, extension of frequency range (27.5 – 39.5 GHz)
Advantage:
• RFS offers a complete waveguide solution from 27.5 to 39.5 GHz!
• Accessories are available!
• First on the market!
2a = 2.5 cm 2a = 3.0 cm 2a = 4.0 cm 2a = 6.0 cm 2a = 8.0 cm
2a Broad axis of elliptical waveguide x End of single mode operation (HC11)
Frequency [GHz]
RFS FLEXWELL Elliptical Waveguides Attenuation curves
AttenuationAttenuation[dB/100m][dB/100m]
RFS FLEXWELL Elliptical Waveguides Comparison of attenuation
Frequency Attenuation of FLEXWELL Elliptical Waveguides [dB/100m]
[GHz] Single Mode Overmoded Advantage including filters
38.25 60.7 24.7 35.3
22.40 28.3 14.0 13.7
18.70 19.3 9.5 9.2
14.50 14.0 6.4 7.0
11.00 9.1 4.5 4.0
RFS FLEXWELL Elliptical Waveguides Connector with ‘Plast 2000’ sealing
Plast 2000 Sealing
Plast 2000 has a very good adhesion to the metallic parts of the connector and to the waveguide. The curing process depends on the humidity and temperature of the air. Under normal
conditions, sealing against moisture is accomplished in a very short time.
These connectors have been carefully designed for excellent VSWR performance without the use of any tuning screws.
Model numbers on these connectors end with a letter “P” to designate the use of Plast 2000 sealing.
Exception all connectors with gasket and shrinking sleeves:
E250 and E380 series,
all overmoded waveguides.
RFS FLEXWELL Elliptical Waveguides Connectors, gasket sealing
Gasket Sealing
In this design, the connector is sealed between the backnut and the waveguide with a conical shaped threaded gasket. The threaded gasket is held in place with an internal pressure plate to create a gas tight waveguide assembly that will not leak even if the
waveguide is flexed near the connector.
A seal between the connector backnut and the waveguide transition is achieved with a specially shaped flat gasket that encompasses the waveguide flare and connector bolt holes.
A heat shrink boot is supplied for application over the elliptical waveguide and the connector backnut to provide strain relief and additional weatherproofing.
Model number on these connectors end with a letter “G” for designation of gasket sealing.
RFS FLEXWELL Elliptical Waveguides Connectors, product portfolio
Connector Types
FLEXWELL® elliptical waveguide connectors are available in standard (non-tuneable), tuneable and fixed tuned versions.
FLEXWELL® connectors are offered with interface to EIA and IEC standard waveguide flanges.