Shield Room

Technical Construction

Our RF-shielded rooms and anechoic chambers are designed as a modular concept. This means that we use standardized parts, which assure a maximum of flexibility in view of the possible dimensions. The various shielding components are matched in a way that variations of length, width and height as well as lateral offsets may be realized without any problem during later modifications. In order to use the maximum available space of the existing installation area, special adjusting modules are available which allow the realization of almost any dimensions requested. In the normal configuration, the individual shielding modules are bolted from the inside so that they can be installed close to the walls of the building. If required, the panels can also be bolted from outside (e.g. when chambers must be attached to each other). The panels are made of galvanized sheet steel with a thickness of 2.0 mm. The sheet steel is double-edged in order to achieve two things: self-supporting stability and assembly by screwing. The corners of the individual panels are welded and spray-galvanized. The individual shielding panels are bolted every 75 mm with a wire mesh gasket inserted into the gap. The small screwing distance as well as the precise tightening of the screws with pre-defined torque guarantees long life shielding attenuation characteristics. All chambers are self-supporting up to a width, length and height of 3.0 m. Beyond these dimensions, additional steel supports (beams, columns) are installed on the outside to stabilize the chamber.

Steel Structure

The steel structure of Frankonia is made of strong steel girders which are totally self-supporting. When designing customized anechoic chambers and shielded rooms we especially take into consideration the stability of the chamber, seismic conditions as well as the achievement of a low point load to the concrete slabs of the building. Our steel girders are painted with a corrosion prevention on which we give a guarantee of 10 years. Example of wall fixation


Prefabricated pan-type shielding modules made of 2 mm thick galvanized sheet steel, 20 μm minimum acc. to DIN 17162 - EN 10142 - Quality DX 52 D + Z
Thickness of the galvanization: min. 275 g/m2 by chemical
passivation and tolerances acc. to DIN/EN 10143
Bolted every 75 mm

Low Cost Shield Room Made By Order

A Faraday cage or Faraday shield is an enclosure formed by conducting material or by a mesh of such material. Such an enclosure blocks external static and non-static electric fields. Faraday cages are named after the English scientist Michael Faraday, who invented them in 1836.[1] A Faraday cage operates because an external static electrical field causes the electric charges within the cage's conducting material to be distributed such that they cancel the field's effect in the cage's interior. This phenomenon is used, for example, to protect electronic equipment from lightning strikes and electrostatic discharges.


Faraday cages cannot block static or slowly varying magnetic fields, such as the Earth's magnetic field (a compass will still work inside). To a large degree, though, they shield the interior from external electromagnetic radiation if the conductor is thick enough and any holes are significantly smaller than the wavelength of the radiation. For example, certain computer forensic test procedures of electronic systems that require an environment free of electromagnetic interference can be carried out within a screen room. These rooms are spaces that are completely enclosed by one or more layers of a fine metal mesh or perforated sheet metal. The metal layers are grounded to dissipate any electric currents generated from external or internal electromagnetic fields, and thus they block a large amount of the electromagnetic interference. See also electromagnetic shielding.


The reception or transmission of radio waves, a form of electromagnetic radiation, to or from an antenna within a Faraday cage are heavily attenuated or blocked by a Faraday cage.


PNK offers low cost Shield room which covers a large range of electromagnetic frequencies ,in the Low frequency Spectrum and we also cover high frequency Radio Frequency to be discussed in the Radio Frequency testing section.

Low cost Shielded Room


PNK Engineering and Consultant Co., Ltd. 
9 Soi Ramkumhange 164 Yak 16 Minburee 
Bangkok 10510


Tel +669 4412 5588   +66 2 170 9244
Fax +66 2 170 9245 

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