EHP High Performance Microwave Pyramidal Absorber

EHP High Performance Microwave Pyramidal Absorber

ETS-Lindgren's type EHP (Extra High Performance) microwave absorber is designed for use over a wide frequency spectrum and has been used as an effective tool for the reduction of reflections from 30 MHz through 100 GHz.

ETS-Lindgren's type EHP (Extra High Performance) microwave absorber is designed for use over a wide frequency spectrum and has been used as an effective tool for the reduction of reflections from 30 MHz through 100 GHz. Each piece of absorber is fabricated of the highest quality urethane foam, which is cut into a precise bun configuration and impregnated with a conductive carbon using a proprietary formulation.

Read a case study on how this product was used for drone/UAV (Unmanned Aerial Vehicle) testing.

Whether you need just a few pieces of absorber or a complete turnkey chamber, we have the experience and resources to help you with the right solution.

Key Product Information

Specifications Select a tab below for more information

Maximum Power Density: 775 W/m², 77.5 mW/cm², 0.5 W/in²

Frequency Range by Model

Model	Frequency Minimum	Frequency Maximum
EHP-3PCL	4 GHz	40 GHz
EHP-5PCL	2 GHz	40 GHz
EHP-8PCL	1 GHz	40 GHz
EHP-12PCL	1 GHz	40 GHz
EHP-18PCL	500 MHz	40 GHz
EHP-24PCL	200 MHz	40 GHz
EHP-36PCL	80 MHz	40 GHz
EHP-48PCL	80 MHz	40 GHz
EHP-72PCL	80 MHz	40 GHz

Maximum Reflections at Normal Incidence

	80 MHz	120 MHz	200 MHz	300 MHz	500 MHz	1-2GHz	2-4 GHz	4-8 GHz	8-12 GHz	12-18 GHz	18-40 GHz
EHP3PCL								-30 dB	-40 dB	-45 dB	-45 dB
EHP5PCL							-30 dB	-40 dB	-45 dB	-50 dB	-50 dB
EHP8PCL						-30 dB	-40 dB	-45 dB	-50 dB	-50 dB	-50 dB
EHP12PCL						-35 dB	-40 dB	-45 dB	-50 dB	-50 dB	-50 dB
EHP18PCL					-30 dB	-40 dB	-45 dB	-50 dB	-50 dB	-50 dB	-50 dB
EHP24PCL			-20 dB	-30 dB	-35 dB	-40 dB	-50 dB	-50 dB	-50 dB	-50 dB	-50 dB
EHP36PCL	-11 dB	-13 dB	-25 dB	-30 dB	-40 dB	-45 dB	-50 dB	-50 dB	-50 dB	-50 dB	-50 dB
EHP48PCL	-15 dB	-20 dB	-30 dB	-35 dB	-40 dB	-45 dB	-50 dB	-50 dB	-50 dB	-50 dB	-50 dB
EHP72PCL	-20 dB	-30 dB	-40 dB	-40 dB	-45 dB	-50 dB	-50 dB	-50 dB	-50 dB	-50 dB	-50 dB

Adhesive: Yes

Clip: Yes

Color: Rantec Blue

Environmental Temperature: 22° C ± 10° C (70° F ± 20° F) Maximum

Service Temperature: 90° C (190° F)

Ratings, Fire Retardant: NRL 8093 Tests 1, 2 & 3, TI #2693066, MIT MS-8-21, UL 94 and DIN 4102-B2

Specifications Relative Humidity: 50% ± 20%

Velcro: 45.72 cm (18 in)

Dimensions by Model

Model	Absorber Footprint	Pyramids per Absorber	Base Height	Overall Height	Pyramid Height	Weight
EHP-3PCL	24 in x 24 in	256	1.9 cm (0.75 in)	8.25 cm (3.25 in)	6.4 cm (2.52 in)	1 kg (2.20 lb)
EHP-5PCL	24 in x 24 in	144	2.5 cm (0.98 in)	12.7 cm (5.00 in)	6.4 cm (2.52 in)	1.6 kg (3.53 lb)
EHP-8PCL	24 in x 24 in	64	5.1 cm (2.01 in)	21.6 cm (8.50 in)	16.5 cm (6.50 in)	2.8 kg (6.17 lb)
EHP-12PCL	24 in x 24 in	36	5.7 cm (2.24 in)	31.1 cm (12.24 in)	25.4 cm (10.00 in)	4.6 kg (10.14 lb)
EHP-18PCL	24 in x 24 in	16	5.7 cm (2.24 in)	46.4 cm (18.27 in)	40.6 cm (15.98 in)	4.6 kg (10.14 lb)
EHP-24PCL	24 in x 24 in	9	10.2 cm (4.02 in)	61.0 cm (24.02 in)	50.8 cm (20.00 in)	6.1 kg (13.45 lb)
EHP-36PCL	24 in x 24 in	4	15.2 cm (5.98 in)	91.4 cm (35.98 in)	76.2 cm (30.00 in)	9.5 kg (20.94 lb)
EHP-48PCL	24 in x 24 in	4	20.3 cm (7.99 in)	121.9 cm (47.99 in)	101.6 cm (40.00 in)	11.3 kg (24.91 lb)
EHP-72PCL	24 in x 24 in	1	30.5 cm (12.01 in)	182.9 cm (72.01 in)	152.4 cm (60.00 in)	15.9 kg (35.05 lb)