Spatial oscillators with multiple active elements (CROSBI ID 473735)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Bonefačić, Davor ; Bartolić, Juraj ; Šipuš, Zvonimir
engleski
Spatial oscillators with multiple active elements
A new self-oscillating antenna built by integrating a push-pull transistor oscillator in a rectangular opening inside a rectangular patch has been presented. The symmetrical patch design has the advantage of suppressing higher modes inside the patch resulting in lower cross-polarization levels. This spatial oscillator showed linear frequency change with bias voltage and a maximum EIRP of 24.4 dBm. The predicted and measured operating frequency agree very well. The radiation patterns show no degradation in comparison to a non-modified patch. The cross-polarization levels in both E- and H-planes are low. Injection locking experiments show stable operation and acceptable FM noise levels throughout the tuning range. This compact and low cost design showed clean spectrum in the whole tuning range. Future work will be focused on building arrays of these active elements and investigating their power combining and beam scanning properties.
antenna; active antenna; active integrated antenna; oscillator; push-pull oscillator
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Podaci o prilogu
CD-ROM-x.
2000.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the Millennium Conference on Antennas and Propagation, AP2000
Danesy, D. ; Sawaya, H.
Noordwijk: European Space Agency
Podaci o skupu
Millennium Conference on Antennas and Propagation, AP2000
poster
09.04.2000-14.04.2000
Davos, Švicarska