Naslov
An Electric Field Measurement of a Scanning Radar Antenna

Autori
Šimunić, Dina ; Koren, Zlatko Tomislav

Izvornik
Microwave journal Internation. ed. (0192-6225) 40 (1997), 9; 124-136

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
electric field ; measurement ; radar ; antenna

Sažetak
This article presents a novel method for measuring true root mean square (RMS) and peak values of electric field strength generated by a scanning radar antenna. The measuring equipment is a new electric field meter with an isotropic probe based on a diode detector, designed specifically for applications in a pulsed environment. The idea behind the method is a compensation of the detector's inertia for measuring short pulses with a low duty cycle ratio. Correction curves required for such compensation are generated by simulating the detector characteristics and four parameters of a scanning radar antenna. The curves provide a correction factor relating a peak and displayed electric field value. The simulated models have been verified by laboratory measurements for two different probes (100 kHz to 3 GHz and 10 MHz to 18 GHz). The method has been tested using on-site measurements of a typical airport surveillance radar and represents an improved solution for pulsed field measurements during normal operating modes of radar transmitters to aid in evaluating electromagnetic field dosimetry.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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