RF SHIELDED ENCLOSURE

FOR UHF / MICRO WAVE SHIELDING

Features

· This is a double-layer galvanized steel panel shielded unit.

· New shielding technology to achieve great improvement.

· Suitable for plants producing RF products, quality control during production and are ideal for R&D laboratories.

· Special design to meet customer requirements.

Technical description

· All power lines are filtered by newly designed Japanese RF suppression filters to give better shielding effect.

· Specially made copper finger strips are used for door edges to provide good RF-tight.

· I/O Signals penetration unit can be made to order.

Radio Frequency Shielded Room

RF Shielded Room is built to reduce most RF interference which lowers performance of electronic equipment in your work place. Our shielded rooms are reliable and well developed to suit your needs. There are a wide range of shielded rooms with different sizes for use in Production Plants, R & D Labs, and Communication Services Centers.

YT series is a double shielded room and all materials used are zinc plated steel for protection against corrosion damages. The door edges are shielded by specially made copper finger strips for better electrical contact to prevent RF leak-in.

Please do not hesitate to give us your custom designs. We will make the rooms to satisfy your requirements.

Standard Sizes

L x W x H	Internal (app)
6’ x 6’ x 6’ 9” (1.83 x 1.83 x 2.05 M)	5.5’ x 5.5’ x 6.1’ (1.68 x 1.68 x 1.85 M)
6’ x 9’ x 6’ 9” (1.83 x 2.74 x 2.05 M)	5.5’ x 8.5’ x 6.1’ (1.68 x 2.59 x 1.85 M)
9’ x 9’ x 6’ 9” (2.74 x 2.74 x 2.05 M)	8.5’ x 8.5’ x 6.1’ (2.59 x 2.59 x 1.85 M)

Any custom sizes are welcome.

Performance for 1 GHz Series

Frequency	Attenuation	Field
1 MHz	> 85 dB	Electric
10 MHz	> 85 dB	Electric
100 MHz	> 85 dB	Plane wave
400 MHz	> 85 dB	Plane wave
1 GHz	> 80 dB	Plane wave

Performance for 2.4 GHz Series

Frequency	Attenuation	Field
1 MHz	> 85 dB	Electric
10 MHz	> 85 dB	Electric
100 MHz	> 85 dB	Plane wave
400 MHz	> 85 dB	Plane wave
1 GHz	> 85 dB	Plane wave
2 GHz	> 70 dB	Plane wave

RF Suppression Line Filter

Although the electronic test equipment is shielded during the electronic product testing process, interference signals will leak in through the power lines (Fig.1). Hence, a symmetrical π- Type low pass filter must be installed where the power lines enter the shielded room.

Grounding for shielded room

Capacitors are inserted between the line and shielding as shown in Fig.2. When the FILTER is installed, a difference of potential is produced between the ground and shielding. Consequently, there is a danger of electric shock if the shielding is touched. Therefore, the shielding must be securely grounded at all times. (Fig.3)

Connection for shielded room electric supply

YT2G Series shielding effect (2.4 GHz)

Performance tests are in compliance with MIL-STD-285 test procedure