Suppressing of undesired modes in push-pull active integrated antenna (CROSBI ID 473732)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Bonefačić, Davor ; Šipuš, Zvonimir
engleski
Suppressing of undesired modes in push-pull active integrated antenna
The paper considers a design of a push-pull oscillator for an active integrated patch antenna. The patch is fed at two points with signals having 180 degrees phase shift in order to excite the desired mode. Since a system of two active elements may operate in odd and even modes on the design frequency and its harmonics, the undesired modes have to be suppressed. This is obtained by controlling the negative resistance at the oscillator outputs and the coupling between the active elements. Further suppression has been obtained by symmetrical design of the active antenna. An active rectangular patch antenna with push-pull oscillator has been manufactured. The theoretical results have been compared with measurement. The antenna showed stable operation and very good radiation properties.
antenna; active antenna; active integrated antenna; oscillator; push-pull oscillator
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Podaci o prilogu
36-40-x.
1999.
objavljeno
Podaci o matičnoj publikaciji
Proceedings of the 15th International Conference on Applied Electromagnetics and Communications
Bartolić, Juraj
Zagreb: Hrvatsko društvo za komunikacije, računarstvo, elektroniku, mjerenja I automatiku (KoREMA)
Podaci o skupu
15th International Conference on Applied Electromagnetics and Communications
predavanje
11.10.1999-13.10.1999
Dubrovnik, Hrvatska