Super-directive parasitic element antenna for spatial filtering applications
Résumé
A super-directive parasitic element system, with a diameter of the minimum sphere circumscribing the antenna equal to 0.2λ 0 , is simulated and measured. A maximum directivity of 7.2 dBi is measured with a radiation efficiency of -6.5 dB at 876MHz. An intermediate directivity of 5.5 dBi is observed at 884MHz with 12 dB front-to-back ratio and -2.3 dB radiation efficiency. This result is promising for spatial filtering applications.
Mots clés
Gain
Filtering
Antenna arrays
frequency 884 MHz
spatial filtering applications
frequency 876 MHz
intermediate directivity
super-directive parasitic element system
super-directive parasitic element antenna
antenna radiation efficiency
UHF antennas
filtering theory
directive antennas
antenna radiation patterns
Antenna measurements