Publication Type:

Journal Article


Microwave Theory and Techniques, IEEE Transactions on, IEEE, Volume 51, Number 8, p.1960-1965 (2003)



Active antennas, amplifying active reflect antenna, Antenna arrays, Antenna measurements, Capacitors, DC isolation, dual-polarized antenna, gain, Gain measurement, Microstrip antennas, microstrip-T coupled-patch antenna, monostatic radar cross section, Polarization, Probes, radar antennas, Radar cross section, radar cross-sections, Radio frequency, reflector antennas, RF isolation, time-domain measurement, vector network analyzer


A compact design of an amplifying active reflect-antenna using a novel microstrip-T coupled-patch antenna is proposed. The dual-polarized ports of the microstrip-T coupled-patch antenna provide excellent RF isolation as well as dc isolation. The dc isolation helps in avoiding additional coupling capacitors in the RF path, thereby achieving reduced layout size and cross-polarization levels for the active reflect-antenna. The gain and monostatic radar cross section (RCS) measurement of the active reflect-antenna has been carried out using a time-domain technique based on a single dual-polarized antenna and vector network analyzer. The measured monostatic RCS and gains are then compared with the calculated ones using two different modeling approaches.

Cite this Research Publication

D.G. Kurup and Rydberg, A., “Amplifying active reflect-antenna using a microstrip-T coupled patch design and measurement”, Microwave Theory and Techniques, IEEE Transactions on, vol. 51, pp. 1960-1965, 2003.