Schwarzbeck PCD 2440 Compact Monopole Antenna

The Schwarzbeck PCD 2440 is a compact monopole antenna for automotive immunity testing, embedded in a plastic housing. The original proposal of ISO 11452-9 had significant drawbacks, which made a practical realisation impossible. The radiating elements of the original proposal which were driven by radiation coupling exhibited an extremely strong dependance on environmental influences, which made a practical realisation impossible. Finally a monopole on a groundplane was choosen, which is superior to the original proposal in any case. The achieved bandwidth and the better reproducability are the most significant advantages of the monopole design with groundplane.

A further reduction of sheath currents can be achieved using the optional coaxial cable loaded with clamp-on ferrites.

The antenna housing comes with two fixture bolts, which can be used to mount the antenna either in vertical or horizontal orientation.

Schwarzbeck PCD 2440 Caution:

The SMA antenna connector must not be touched during TX-operation due to hazardous voltages and fieldstrength!

The relevant safety standards for exposition to electromagnetic fields must be considered. Immunity tests shall only be made by skilled personnel, being familiar with possible hazards. Testing must take place in appropriate environments (anechoic chamber or shielded room).

Due to its construction the antenna can be de-tuned when approaching too close to other devices. This may degrade the impedance matching and generate unwanted sheath currents, which can lead to high temperatures of the snap-on-ferrites of the coaxial cable. In such cases the transmit power should be switched off until the ferrites have cooled down.

PCD 2440 is part of a series of antennas for ISO 11452-9. Further models are available.

Standing Wave Ratio