Naslov
Suppressing of undesired modes in push-pull active integrated antenna

Autori
Bonefačić, Davor ; Šipuš, Zvonimir

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 15th International Conference on Applied Electromagnetics and Communications / Bartolić, Juraj - Zagreb : Hrvatsko društvo za komunikacije, računarstvo, elektroniku, mjerenja I automatiku (KoREMA), 1999, 36-40

Skup
15th International Conference on Applied Electromagnetics and Communications

Mjesto i datum
Dubrovnik, Hrvatska, 11.10.1999. - 13.10.1999

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
antenna; active antenna; active integrated antenna; oscillator; push-pull oscillator

Sažetak
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.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika

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