Key Product Information


The ETS-Lindgren DKE Door consists of a factory assembled leaf and frame which maintain electrical contact around the perimeter. The door panel is laminated on both sides with 22 gauge galvanized steel. Heavier gauges are available for improved magnetic field performance. The bronze double knife edge extrusion is mounted on the door leaf and the receiver housing is mounted to the frame. The two knife edges of the leaf mate with four rows of beryllium copper finger-stock mounted in the bronze recessed contact mechanism receiver housing. The beryllium finger-stock is easily maintainable and replaceable with standard tools. 
Each door leaf is supported by three heavy-duty aluminum hinges for sag-free mounting and latched by a three-point roller bearing latch assembly. These features serve to provide a high reliability door which will deliver many years of trouble-free service.
The DKE Door is available in the standard size of 0.91 m to 1.22 m  (3 ft to 4 ft) width and 2.13 m (7 ft) height, both single and double leaf, and custom fabricated sizes.


The DKE maintains 120 dB attenuation to 10 GHz, and 100 dB at 26 GHz. When tested in accordance with MIL-STD 285/IEEE-299, the DKE design exceeds the test requirements of NSA 65-6, NSA-94-106 and CID/09/12A.

Attenuation Levels

Magnetic Fields: 20 dB @ 1 KHz rising to 70 dB @ 14 KHz and 100 dB @ 200 KHz
Electric Fields: 90 dB @ 1 KHz rising to 120 dB from 10 KHz to 50 MHz
Plane Waves: 120 dB from 50 MHz to 10 GHz
Microwaves: 100 dB from 10 GHz to 26 GHz, decreasing to 80 dB @ 40 GHz
*DKE performance above 10 GHz can be enhanced using microwave absorber material.


Latching is accomplished manually by a heavy duty aluminum handle on both interior and exterior sides. The door pivots at a minimum of three hinge points on six thrust bearings. The cam driven, manual three-point latching mechanism consists of a gear driven welded latch bar, which is held in alignment by two latch bar bearing guide blocks. The six precision machined latch bar guides secure the assembly on the door leaf and drive three cam follower bearings into the door strikes mounted on the door frame.



ASDS Door ​ETS-Lindgren's ASDS Door is designed to provide a reliable, economical door for your facility. <br>
Auto-Latching Door System ​​​ETS-Lindgren's Auto-Latching Door System for EMI/RFI Shielded Rooms maintain the highest level of shielding effectiveness in EMI/RFI enclosures while providing user-friendly enclosure door operation.
Double Knife Edge Door ​​ETS-Lindgren's Double Knife Edge Door (DKE) is a heavy-duty door, constructed of exceptionally rugged materials with designed-in reinforcements. 
Euroshield RFD-60 Swing Door ETS-Lindgren's RFD-60 doors are designed for easy, lightweight operation and performance made in accordance with MIL-STD-285.
Euroshield RFD-F/A-100 ETS-Lindgren's RFD-F/A-100 Swing Doors meet the performance of the standard 100-type doors up to 40 GHz and are especially designed for the additional load of ferrites and short absorbers (max. 50 kg/m<sup>2</sup>). <br>
Euroshield RFSD-100 Sliding Door ETS-Lindgren's RFSD-100 Sliding Doors are designed to meet the highest shielding requirements.<br>
Euroshield SRFSD-100 sliding doors ETS-Lindgren's SRFSD-100 sliding doors are designed for applications in the reverb chambers and partial discharge rooms and according to the customer's requirements.
Euroshield SRFSD-F/A-100 ETS-Lindgren's SRFSD-F/A-100 and SRFSD-F/A-100ABS Sliding Doors are designed and manufactured for special anechoic chamber applications, according to the customer´s requirements.
Euroshield iRFD-100 Swing Door <p>ETS-Lindgren's iRFD-100 doors are designed for high performance operation, made in accordance with MIL-STD-285</p>
PSD Pneumatic Sliding Door ETS-Lindgren's Pneumatic Sliding Door (PSD) System is an all-welded access door for RF shielded enclosures.
Single Knife Edge™ DoorETS-Lindgren's Single Knife Edge™ (SKE) Door offers superior knife edge door reliability, performance and longevity.

Key Features

  • Precision-Machined Aluminum Hinges with Six Thrust Bearings for Sag-free Mounting and Smooth Operation
  • A 5.08 cm (2 in) Bronze Center Bushing, Capped with 10.16 cm (4 in) Brass Cover Plates, Penetrating the Door Leaf Core 
  • Four Rows of Beryllium Copper Finger-stock Around the Perimeter of RCM Receiver
  • Heavy-duty Cam Latch Strikes for Three-point Latching, Guided by Precision Machined Latch Bar Guides 
  • Easy-to-retrofit with Existing Door on Standard Modular and Welded Shielded Enclosure

Literature and Videos<a href="/sites/etsauthor/ProductBrochures/General%20Brochures/Test_and_Measurement_Full_Line.pdf"><img alt="" src="/_layouts/15/IMAGES/icpdf.png" />Test_and_Measurement_Full_Line.pdf</a>

L o a d i n g

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