radar real and imaginary issues updated 160111

Copyright HITEK Electronic Materials Ltd 2008C

RADAR – the real and imaginary issues

Grouped in Bands and by type

Low, medium, high PRF and beyond

Stationary, slow moving and fast

Broad band, weatherproof, affordable



Reports



Emitters - Marine



Emitters – Aviation and Military



Pulses

Pulse width

Pulse Repetition

Freq

X Band 8 – 12 GHz

Settle time Listening

time



Absorbers

Essential formulae

Z0 = [H][E]

Z0 376.73031346177….Ohms~~

RdB = 10 log 10 Pin

Pout



Pulses Kentish Flats scale



Pulses




FPV Morven


Pulses and Artificial Radar Horizon

Artificial Radar Horizon

Can be fixed or mobile



Absorbers - Artificial Radar Horizon



Marine Targets



Aviation Targets



Absorbers

Typical Broadband response Typical Narrowband response



What the radar sees



Conclusions

S Band w/o RAM Max

S Band w/o RAM Typical

S Band with RAM

X Band w/o RAM Max

X Band w/o RAM Typical

X Band with RAM



Conclusions

Images courtesy of Marico Marine Ltd


FPV Morven with RAM

Real?

FPV Morven without RAM

Or imaginary!


Fully stealthed?



Tower Cloak Rating-17 dB >-20 dB

A+A

B B+

C

D

E

F

G

Full Stealth + Luneburg Lens

Blade Cloak + Luneburg Lens

Artificial Radar Horizon

Full Tower Cloak

Partial Tower Cloak

Blade Shimmer Cloak

No Cloak

Proposal for Wind Turbine Cloaking ratings



Tower Cloak RatingBladesTower Nacelle Spinner

Aviation - Scotton Common Windfarm 143

HITEK Hi-Power Tower 5MW Mk II

A+ A+

Blade Cloak example




Aviation – Tuetoes Wood Windfarm 67

F

A A

HITEK Hi-Power Tower 3MW Mk I6

Blade Shimmer example




Marine – Granton Harbour Windfarm 131

HITEK Hi-Power Tower 3.5MW Mk IA

E

Partial Tower example

radar real and imaginary issues updated 160111

Technology