Title :
Accurate calibration antenna with optical feed
Author :
Draaijer, Maurice H J
Author_Institution :
Philips Res. Lab., Eindhoven, Netherlands
Abstract :
The calibration antenna system described here is meant to reduce the main measurement uncertainty contributors which are present in conventional antennas. It is able to transmit a stable and reproducible electromagnetic field and benefits from using a tracking generator in the frequency range 30 MHz-1 GHz. The antenna is optically driven by a pin-diode inside the antenna which is fed via an optical fiber. Benefits and limitations of this new antenna are explained, the anatomy of the antenna is described and simulations are presented together with measurements. The antenna is developed to be used as an accurate reference radiator in fully (FAR) and semi-anechoic rooms (SAR)
Keywords :
anechoic chambers (electromagnetic); antenna radiation patterns; calibration; electromagnetic compatibility; electromagnetic fields; finite difference time-domain analysis; measurement uncertainty; optical fibres; p-i-n diodes; test equipment; transmitting antennas; 30 MHz to 1 GHz; EMC; EMI; accurate reference radiator; calibration antenna system; electromagnetic field; frequency range; fully-anechoic rooms; measurement uncertainty reduction; optical fiber; optically driven antenna; pin-diode; semi-anechoic rooms; simulations; tracking generator; Anatomy; Antenna feeds; Cables; Calibration; Connectors; Dipole antennas; Frequency; Measurement uncertainty; Optical fibers; Resistors;
Conference_Titel :
Electromagnetic Compatibility, 2001. EMC. 2001 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-6569-0
DOI :
10.1109/ISEMC.2001.950679
