AN IMPROVED ANTENNA WITH A FILTER

AN IMPROVED ANTENNA WITH A FILTER

The present invention provides a compact CP microstrip antenna integrated with a higher harmonics rejection filter. CP is obtained with a square ring in the framework of a DGS. The ring enables both compactness as well as the CP property, through the asymmetrical truncated edges on its outer ring. A...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: SHARUL KAMAL BIN ABDUL RAHIM, MURSYIDUL IDZAM BIN SABRAN, LEOW CHEE YEN
Format: Patent
Sprache:eng
Schlagworte:
ANTENNAS, i.e. RADIO AERIALS
BASIC ELECTRIC ELEMENTS
ELECTRICITY
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Beschreibung
Zusammenfassung:The present invention provides a compact CP microstrip antenna integrated with a higher harmonics rejection filter. CP is obtained with a square ring in the framework of a DGS. The ring enables both compactness as well as the CP property, through the asymmetrical truncated edges on its outer ring. A combination of slot and stubs on the transmission line provides adequate suppression of higher harmonics up to the third order. The filtenna shows a good reflection coefficient performance, with a B impedance bandwidth of 310 MHz (2.32-2.63 GHz) in the ISM band. A directional radiation pattern is obtained.