4&4Eight are specialists in the design and development of a range of new and innovative antennas. The company concentrates on:
Analysis and design of slotted waveguide arrays for radar and communication systems (mono-pulse radars, flared slotted waveguide arrays, beam steering slotted waveguide arrays, etc.).
Phased arrays (WG aperture, patch, Vivaldi, etc.) and BFNs in waveguide (WG, ridge WG, coaxial line, etc.) and printed technology (microstrip, stripline, CPW, square coax., etc.).
Flat Array Antennas for Ku-Band Mobile Satellite Terminals.
Design of electronic beam steering reflectarray antennas.
Design of microwave components and devices.
- Slotted Array
- Flared Arrays
- Horn Arrays
- Phased Arrays
- Patch Arrays
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Slotted Waveguide Arrays
- Operative frequency band: from S-band to Ka-band
- Standard waveguide technology (longitudinal slot – broad wall)
- Aperture:
- Planar
- Elliptical
- Circular
- BFN:
- Pencil beam (SLL as low as -35dB)
- Shaped beam (e.g. cosec2)
- Mono-pulse 2D (BFN and guarded comparator on single layer)
- Randome:
- Kapton
- Kevlar
- Multilayer honeycomb
- Planar and conformal
- Size: custom design
Download the Brochure
-
Flared Slotted Waveguide Arrays
- Operative frequency band: from L-band to Ka-band
- High efficiency
- travelling wave or parallel feeding (squintless)
- Extrenely low SLL (Near SLL<-30dB, Far SLL<-40dB)
- Polarizations:
- H-pol (narrow wall slot)
- V-pol (broad wall slot)
- Circular polarization (LH,RH)
- Dual pol
- Flare and randome included
- Size: up to 24 feets
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-
Horn Arrays
- Operative frequency band: from C-band to Ka-band
- High efficiency
- Extremely broad band (up to 50%)
- Aperture:
- Planar
- Elliptical
- Circular
- Polarizations:
- Single linear (fixed or adjustable)
- Dual linear (fixed or adjustable)
- Dual circular
- Size: custom design
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-
Phased Arrays in SIW (Substrate Integrated Waveguide) Technology
- Operative frequency band: from X-band to W-band
- BFN:
- Electronic beam steering
- Switched beam
- Active/passive
- Aperture:
- Planar
- Elliptical
- Circular
- Polarizations:
- H-pol
- V-pol
- Circular polarization (LH,RH)
- Size: custom design
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-
Patch Arrays Printed Circuit Technology
- Operative frequency band: from L-band to Ka-band
- Technology:
- Single
- Multilayer
- cavity backed
- BFN:
- Pencil beam (SLL as low as -35dB)
- Shaped beam (e.g. cosec2)
- Mono-pulse 2D (BFN and guarded comparator on single layer)
- Randome:
- Kapton
- Kevlar
- Multilayer honeycomb
- Planar and conformal
- Size: Custom Design
Download the Brochure
